Region: Europe

The new Hisingen Bridge in Gothenburg, Sweden is a key public infrastructure development for the city. It replaces the old Göta älv Bridge and provides for a shorter crossing distance between Hisingen and the city centre traversing over the river Göta älv. 

The noteworthy design of the new Hisingen Bridge involves four distinct pylon structures and vertical lift capability.

In this instance, a practical and compact vertical access solution is required with an elevator located within each of the four pylons. This is essential for service and maintenance tasks inside the pylon structure where counterweights and machinery for the vertical lift bridge are located. Each pylon leg will be effectively and practically served by an Alimak elevator built on rack and pinion technology giving access to five landings up to a lifting height of 36 meters, travelling at 0.6 m/second and providing a payload capacity of 300kg. The tried and tested rack and pinion drive first introduced by Alimak many years ago was the only viable solution for this project, with the drive mechanism being located within the elevator car itself and eliminating the need for space requirements for a separate shaft or machine room.

Bridge pylons present particular access challenges due to the necessarily limited space available. Convenient and reliable access, however, remains essential for maintenance personnel to address critical tasks relating to aspects including cable stays and aircraft warning lights at the top of each structure. 

With over 40 years of experience in vertical access systems for bridge projects, Alimak is uniquely experienced to meet and overcome the specific challenges which arise with a specific bridge, its geography and engineering. In addition to the compact and reliable elevator with it’s rack and pinion drive design for narrow spaces, Alimak’s elevators can also be adapted to traverse inclined or curved surfaces as the form of the bridge pylon structure demands.

ELEVATOR DETAILS  

Location: Gothenburg, Sweden

Application: Bridge pylon

Elevator type: Rack and pinion

Elevator model: Alimak SE 300 DOL with Special U-600 mast

Capacity: 300 kg

Elevator car size: 0.78 m x 1.04 m x 2.17 m (W x L x H)

Speed: 0.6 m/s

No. of elevators: 4

Two Alimak passenger and materials hoists were used by Colombo Costruzioni S.p.A. during the construction of the Bosco Verticale skyscrapers in Milan, Italy. An innovative building project of two towers hosting more than 900 trees that won the prestigious International High-rise Award.

The Alimak Scando 450 construction hoists were an integral part of the construction of the two skyscrapers. The first Alimak hoist had an 80 m lifting height and 17 landings and the second 112 m and 25 landings. Both hoists had the Alimak ALC-II control system and A3 remote monitoring systems.

Colombo Costruzioni S.p.A. was able to meet the challenge of moving workers efficiently, constantly and safely during the all construction phase thanks to the excellent collaboration of our partner in Lombardia, A.C.G. 5 S.r.l., chosen as the full services suppliers for the hoists from project management and installation right through to maintenance, training, dismantling and providing a 24 hour call out service.

Project challenges

One challenge concerned the different positions and dimensions of the terraces on the outside of the towers. There was a need to create an ideal landing solution on all floors for easy and fast use. Thanks to the flexible, modular design of the Alimak Scando 450 hoists and together with a scaffolding supplier, the optimal solution was achieved.

The second challenge focused on increasing the performance of the hoists; reducing waiting times at the landings and optimizing the loads/unloads according to the hoist ascent or descent. The intelligent Alimak ALC-II control landing system increased the efficiency of the use and reduced waiting times substantially.
The final challenge was to keep the hoist downtime to a minimum and increase the uptime. The Alimak A3 remote monitoring system, which sends activity reports back to the jobsite engineers, ensured that this was achieved.

Colombo Costruzioni S.p.A., with 180 direct employees, an annual turnover of more than 200 million euro and over a century of history has become a national and international benchmark in the construction sector, but has always kept its roots in Lecco, Italy, which is where the company originates from. The extraordinary wealth of experience accumulated since 1905 represents the solid base of a company that has always cared for safeguarding important reference values and family traditions.

Alimak construction hoists have been used for over 50 years in a wide range of applications, from industrial and mining projects, chimneys and bridges, through to new building construction and refurbishment on some of the world’s tallest structures.

COIMA SGR, authorized by the Bank of Italy in 2007, is a leading independent company in the management of real estate investment funds on behalf of Italian and inter­national institutional investors. Today COIMA SGR manages 19 real estate investment funds, with investments worth over 5.5 billion Euro. COIMA, was founded in 1974 by the Catella family together with Domo Media, and is specialized in development and management of real estate assets on behalf of institutional investors. COIMA collaborates with leading Italian and international investors, such as sovereign wealth funds, pension funds, banks, insurance companies, developers, real estate funds and private equity groups. In more than 40 years of activity, COIMA has developed and managed properties totaling over 5 million square meters including Porta Nuova, one of the most prestigious urban regeneration project in Europe.

Project details

Project: Bosco Verticale
Location: Porta Nuova, Milan, Italy
Asset management: Coima SGR
Property management: COIMA SRL
Interior design: Coima Image in collaboration with Dolce Vita Homes

Construction hoist details

Application: Skyscrapers, residential
Hoist types: 2 x ALIMAK SCANDO 450 14/32
Capacity: 1,400 kg
Hoist car sizes: 1.4 m x 3.2 m x 2.13 m (W x L x H)
Speed: 54 m/min
No. of landings: 17 and 25
Lifting height: 80 m and 112 m

Located in Monaco, in the Saint-Roman residential district, construction began on the Tour Giroflées in 2016 and is expected to continue into 2021. Due to stand at 24 storeys and house 73 apartments, the tower is also set to feature a commercial space, 200 car parking spaces and spa facilities. 

Renowned as a provider of industry-leading vertical access solutions, Alimak was selected to deliver an access system owing to the experience and expertise of the team. Alimak installed an Alimak Scando 650 construction hoist solution with dual car configuration featuring one XL car (2 x 4.6 metres) and a standard car (1.5 x 4.5 metres) for a truly versatile vertical access solution. Capable of transporting passengers and materials to elevated levels on-site up to 84 metres and to 25 landings, the construction hoists drove efficiency throughout the construction of Tour Giroflées. Designed to drive productivity on construction sites, the dual car Alimak Scando 650 construction hoist system featured payload capacities of up 2,500 kilograms and 3,000 kilograms and travelling speeds of up to 65 metres per minute for continuously efficient operations. 

The assembly of the hoist was carried out alongside the progress of the facade of the building with the construction hoists serving the ‘coolant’ floor through climbing formwork, providing masons with practical and reliable access to the final floor. 

Alimak also installed single and twin masted MSHF mast climbing work platforms with extensions to fit the curved facades of the building to facilitate the installation of the safety rails on the balconies of the building. 

ELEVATOR DETAILS  

Location: Tour Giroflées, Monaco

Application: High-rise construction

Hoist types: Alimak Scando 650 XL FC & Alimak Scando 650 FC

Capacity: 2,500 kg & 3,000 kg

Hoist car sizes: 2 m x 4.6 m & 1.5 m x 4.6 m (W x L x H)

Speed: 38-65 m/min.

Lifting height: 84 m

No. of landings: 2 x 24

Owing to a reputation for delivering industry-leading vertical access solutions based on a wealth of expertise and experience, Alimak has had the distinct privilege of providing vertical access solutions for some of the world’s most recognisable landmarks. 

Since 1983, Alimak has engineered practical vertical access solutions for the Eiffel Tower to drive efficiency on a number of renovation and maintenance projects. In 1990, Alimak facilitated key renovation work on the tower through the provision of a reliable vertical access solution. Two Alimak Scando cages, one for passengers and the other for materials, with capacities of 1,800 kgs and 2,000 kgs respectively, provided access as the infrastructure of the tower underwent maintenance to prolong the life of the monument. After one year of operations on the first floor of the tower, the elevators were dismantled and re-installed on the second floor for more extensive work on the tower’s own elevator system. 

Most recently, Alimak was called upon to supply a vertical access solution for renovation work on a restaurant on the first floor of the landmark, located 60 metres above the ground. Due to the fact that the renovation was taking place in an occupied environment, an access solution was required that did not use the elevators that are integrated into the structure of the Eiffel Tower. Alimak was chosen to take on the challenge having supplied the most seamless and practical vertical access solution. 

One obstacle encountered during the renovation project was that the vertical access solution was required to transport passengers and materials to elevated points on the tower whilst working within the parameters of its unique form and without intermediate anchoring. Alimak delivered a solution that utilised an Alimak Scando 650 construction hoist which climbed a 60 metre triple mast at speeds of up to 54 metres per minute. This impressive height was achieved with a combination of 3 Alimak mast towers with only one tie required at the top. Featuring a 4 x 1.5 metre cabin with a 2,500 kg payload capacity, the Alimak construction hoist offered a practical solution for the transportation of bulky materials to the elevated restaurant site. 

HOIST DETAILS 

Location: Eiffel Tower, Paris, France 

Application: Renovation 

Hoist type: Alimak Scando 650, triple mast 

Capacity: 2,500 kg 

Hoist car size: 1.50 m x 4.0 x 2.0 m 

Speed: 54 m/min. 

Lifting height: 60 m

21 kilometres of new lines will have been added to the Copenhagen Metro in a few years time. Nine Alimak elevators will provide access in case of emergency.  

Fully automatic, driverless trains will link the eastern and western areas of Copenhagen, including the new development centre Ørestad, a “town in the town” close to the airport and the Øresund bridge. The first 11 kilometres will open for traffic in the autumn of 2002 and another six kilometres will be ready in 2003. The third and final phase includes an extension of the line out to Copenhagen International Airport and is scheduled for 2005. Nine out of the totally 24 new stations will be located underground at depths of up to 18 metres. Safety issues being a top priority in the design of the transport system, The Copenhagen Metro Construction Group (COMET) specified a maximum distance of 300 m to the nearest emergency exit along the line. In the underground tunnels, this requirement means excavating vertical escape and ventilation shafts between the nine stations. The circular shafts are typically 20–30 m deep, diametre around 8 metres, with crosscuts leading into the tunnels. In each of the nine escape shafts there are ventilation pipes, a staircase, and an emergency elevator. Alimak were asked to provide a solution for the elevators and suggested their 1,200 kg capacity rack and pinion elevator type Alimak SE-12 with some special features added to it to suit the application. 

The SE-12 elevators are thus equipped to allow two stretchers to be transported in the elevator car, enabling casualties to be moved safely to ground level in case of an accident in the tunnels. All elevator cables are flame retardent to eliminate the risk of gases created by burning cables in case of a fire. There is also an additional window in the rear car wall so that the rescuers can take their bearings when driving up and down in the shaft. Members of the COMET joint venture are Carillion and Bachy Soletanche (both U.K.), SAE International (France), Astaldi (Italy), Strabag (Austria), and NCC (Denmark). 

ELEVATOR DETAILS  

Location: Copenhagen Metro, Denmark  

Installation year: 2001  

Application: Emergency escape  

Tunnel Elevator type: Alimak SE 12  

No. of elevators: 9  

Capacity: 1,200 kg  

Elevator car size: 1.17 x 2.35 (W x L)  

Speed: 0.8 m/s  

Lifting height: 20 m  

No. of landings 2–3  

GALLERY

Systembolaget, a government-owned chain of liquor stores in Sweden, recently selected an Alimak rack & Pinion elevator for the new logistics facility in Brunna, north of Stockholm. Systembolaget leases large parts of the warehouse from Logicenters. 

Systembolaget stores their products at the new depot prior to delivering to the company’s stores and their many customers who shop online at www.systembolaget. se. As such, Systembolaget opted for an Alimak rack and pinion elevator for their new logistics facility. The Alimak elevator solution required minimum preparation in the facility as rack and pinion elevators don’t require a costly elevator shaft to be designed into the facility structure in advance. With only one tie-in to a concrete beam of the warehouse structure, the elevator can be installed easily and efficiently. The Alimak elevator provides ease of access for both persons and goods weighing up to 1,000 kg, between ground level and the two mezzanine floors. 

Flexible access solutions for warehouses 

The Alimak SE modular elevator concept adapts to the most varying transport requirements and locations. It can be installed with and without an elevator shaft, thanks to its self-supporting design, allowing the elevator to be placed where it provides the greatest benefit. When installing the elevator inside an existing building, the low headroom between the top landing and the roof is a great advantage. Accurate floor levelling at the landing is a prerequisite for the smooth handling of materials and passenger transport. An Alimak rack and pinion elevator levels to within ±5 mm every time, irrespective of the load or lifting height. 

GALLERY

The latest development in the district of Strömsör is located by the river in central Skellefteå. Here, a completely new residential area is being built featuring over 200 apartments, green lanes, parking garages and office spaces. 

 As the population of Skellefteå increases, there is a greater need for new housing. The residential area of Strömsör is growing, creating the need for development. Construction has commenced with work on a development featuring 100 new condominium apartments and 118 rental apartments underway.  

Strömsör extends from the European highway E4 and east along the north side of the Skellefteå River. An urban environment is being created, courtyards and houses will be mixed with green strokes, providing a naturally pleasant environment in harmony with the river. The area is supplemented by a parking garage and a seven-story office building facing the river.  

Strömsör will be characterized by a clear focus on sustainability. Waste management, water supply, and energy use have been brought into special consideration throughout the design and construction project. Tough environmental requirements will also be set for material selection, moisture safety and ventilation.  

The project is based on a collaboration between Skellefteå municipality and three local property owners.  

ABOUT THE MAST CLIMBERS  

Alimak’s rental partner Ramirent is responsible for the delivery of all of the construction equipment for the project including vertical access equipment from Alimak. 

 Sustainability has been one of the highest priorities of this project, and Alimak’s efficient vertical access solutions were chosen to save energy throughout the construction phase.  

The Alimak MC 650 mast climbing work platform is used at the site for bricklaying and façade cladding. The MC 650 is Alimak´s latest innovation in heavy-duty mast climbing platforms. The platform boasts lengths of up to 19.4 m in a single mast configuration and up to 41.8 m in a twin mast configuration and maintains high payload capacity even on the longest platforms. The maximum payload is no less than 3,630 kg on a single and 7,240 kg on its twin equivalent. With a mobile chassis and a freestanding setup of up to 22 m outdoors, it is quick and easy to get started with any facade work. The low loading position of 1.2 m with a pedestal and 1.5 m with a mobile chassis facilitates easy loading of the work platform at ground level. The high capacity and versatility of the MC 650 platform allow for greater productivity and cost efficiencies.  

In addition to the Alimak mast climbing platforms, two Alimak construction hoists have also been utilized on the site to transport workers and materials. 

GALLERY

Process industries have to run continuously without interruption. Alimak elevators provide quick and easy access for inspection and preventive maintenance, ensuring that machinery performs accurately and smoothly and turning downtime into uptime. 

Alimak has been associated with the pulp and paper industry since 1966, when the first Alimak rack & pinion access elevator was installed on a digester in Sweden. Numerous plants around the world have chosen to use our elevator systems to monitor and service their processes since then. 

The papermaking process 

The papermaking process is very old. History has it that it was invented in China in the second century A.D. and reached Europe in the 12th century. The Chinese began with mulberry tree and bamboo, transforming it into a paperlike material.Although modern technology has changed the speed and scale of paper production, the fundamentals remain the same. Wood chips are cooked to produce pulp. Next, the pulp is cleaned and bleached, and then it is dewatered and dried. After the paper is formed it goes through a series of finishing processes to prepare it for its intended application. 

A modern paper mill 

The Skoghall mill in Sweden belongs to the Stora Enso Group, a major global producer of forest products. Stora Enso has 47 production facilities, with around 45,000 employees in more than 40 countries. The Skoghall mill has two board machines, a KM7 and a KM8, for the production of packaging board. With a total annual capacity of 550,000 tonnes,the mill produces liquid packaging board, coated kraft back, and white top liner. 

Four Alimak elevators 

Skoghall installed its first Alimak rack and pinion elevator on a digester in 1968. Today, four Alimak elevators provide access to various parts of the plant. The digester has six access levels for inspection and maintenance of valves, thermometers, motors, etc. The digester must work around the clock without interruption. Engineering and maintenance staff use the elevator a few times per shift for accessing the different levels. 

The elevator on the digester is an ALIMAK SE-5.Itis installed externally without an elevator shaft. It has a lifting height of 61 m and a speed of 0.7 m/s. The stainless steel car has a 500-kg load capacity. Frequent access to various levels of the Skoghall plant’s two bleach towers is required in order to monitor instruments and processes, repair leaking pipe joints, etc. The 50-m and 56-m high structures are equipped with external access elevators with stainless steel cars. Somewhat larger than the car on the digester, they feature capacities of 1000 kg and 1200 kg respectively. The fourth Alimak elevevator was installed in 1994 and serves a green liquor filter building.It has a lifting height of 21 m. 

Skoghall installed its first Alimak rack and pinion elevator on a digester in 1968. Today, four Alimak elevators provide access to various parts of the plant. 

Made for industrial use 

Alimak industrial elevators are available with extruded aluminium or stainless steel cars, ensuring long service life in even the toughest environments. The drive unit is located on top of the car, which climbs on a self-supporting mast, requiring no supporting elevator shaft or separate machine room. The mast is made of galvanised steel. The erection of the elevator mast takes place from the car itself. If installed early in the construction process, the elevator can often be used in the actual construction of the building on which it will then remain as a permanent lift. 

The design and modular construction of Alimak elevators enable specific user requirements to be met from fully standardised components. Capacities range from 300 kg to 2,400 kg. Elevators are available in single- or twin-mast configurations and with travel speeds up to 1.0 m/s. The largest Alimak elevator built and delivered so far is a 24,000-kg capacity unit guided on four mast towers. Lifting heights well in excess of 250 metres are possible with Alimak rack and pinion elevators. 

DETAILS  


Location: Skoghall paper mill, Sweden  

Applications: Liquor filter building, two bleach towers, and a digester  

Elevator types: ALIMAK SE-12, ALIMAK SE-5 and Alimak Scando Mini 10/19  

No. of elevators: 4  

Capacity: Varies from 500 kg–1200 kg  

Lifting height: 21 m, 50 m, 56 m and 61 m 

GALLERY

In 1998, 268 years after it was built, the Royal Opera House in London’s vibrant Convent Garden was given a ‘face lift’, and Alimak was there to help. A major item in this redevelopment works was an Alimak ‘Get In’ elevator, which became the major artery of the stage works. 

The Royal Opera House is a Repertory theatre demanding frequent scenery changes depending upon the programme which may vary nightly. Handling the sets in an exacting and precise operation, with part of this operation being to transport the scenery up to the stage level, and this is where Alimak engineers were called in to design an elevator large enough to cope with pallets up to 10 m long. The bulk of the ROH scenery is stored in a warehouse in Wales and bought to the Theatre in trailers in advance of the season’s productions. Manoeuvring 10m pallets in the streets is a major operation, and it was felt that it would be much easier if the lorry and trailer could be driven into the theatre for unloading. So that’s exactly what Alimak did, by designing and installing the ‘Get In’ lift! 

The quad-masted rack & pinion driven elevator is 18 m long and 4.7 m high, with a maximum carrying capacity of 24 tonnes! A fully loaded trailer and reactor can therefore be driven straight in from the street and lowered 14 m to bottom level for unloading. When not engaged in its main task of moving scenery pallets, the elevator functions as a general purpose elevator servicing three levels below the stage. The elevator starts at street level (S-1), descends to S-3, 14 m below where it serves the scenery store and also a new 450 seat auditorium. An intermediate level, S-2, is where the waste skip is loaded, taken to street level, and removed by a skip lorry away from the street ensuring minimal disruption. The elevator is fitted with doors on three sides, east, west and north; the north side having a 10m wide clear opening. At each landing the

The quad-masted rack & pinion driven elevator is 18 m long and 4.7 m high, with a maximum carrying capacity of 24 tonnes! A fully loaded trailer and reactor can therefore be driven straight in from the street and lowered 14 m to bottom level for unloading. When not engaged in its main task of moving scenery pallets, the elevator functions as a general purpose elevator servicing three levels below the stage. The elevator starts at street level (S-1), descends to S-3, 14 m below where it serves the scenery store and also a new 450 seat auditorium. An intermediate level, S-2, is where the waste skip is loaded, taken to street level, and removed by a skip lorry away from the street ensuring minimal disruption. The elevator is fitted with doors on three sides, east, west and north; the north side having a 10m wide clear opening. At each landing the lift can be levelled to accommodate the varying contents. 

can be levelled to accommodate the varying contents. 

ELEVATOR DETAILS 

Location: The Royal Opera House, London, UK

Application: Opera House

Elevator type: Rack and Pinion

Elevator model: Alimak Customised

Capacity: 24,000 kg

Elevator car size: 4.8 m x 18 m x 4.7 m (W x L x H)

Speed: 9 m/min

Machinery: 24 motors, each 4 kW (96 kW)

Lifting height: 14.1 m

No. of landings: 3

No. of mast towers: 4

GALLERY

Process industries have to run continuously without interruption. Alimak elevators provide quick and easy access for inspection and preventive maintenance, ensuring that machinery performs accurately and smoothly and turning downtime into uptime. 

Alimak has been associated with the pulp and paper industry since 1966, when the first Alimak rack and pinion industrial elevator was installed on a digester in Swden. Numerous industrial plants around the world have chosen to use our elevator systems to monitor and service their processes since then. 

Investing in the future 

SCA is a Swedish timber, pulp and paper manufacturer with headquarters in Sundsvall and approximately 4,000 employees. Its main products include publication papers, solid-wood products, pulp and forest-based biofuel. SCA is Europe’s largest private owner of forest land, with 2.6 million hectares, the size of Macedonia 

The company has recently invested SEK 7.8 billion in Östrand pulp mill in Timrå, Sweden under project name “Helios”. The new factory, which started up in June 2018, will be a world-class in terms of product quality, environment and competitiveness. It is one of the largest industrial investments ever in Sweden. 

SCA pulp mill produces bleached kraft pulp and CTMP and doubled its production capacity from 430,000 tonnes to 900,000 tonnes through the investment. 

Kraft pulp is produced by boiling chips into pulp that is then bleached using hydrogen peroxide and oxygen to produce cellulose fibre that is as pure as possible. Crude turpentine is also extracted from the wood. 

Valmet and Andritz were tasked with delivering large parts of the process equipment in the Helios projects and to carrying out all process engineering and mechanical engineering work, manufacturing and installation. 

A new Alimak elevator 

The old Östrand mill had an Alimak industrial rack-and pinion elevator installed and running since 1986. For the new factory, Valmet decided to go for an ALIMAK SE 700 to facilitate easy access for service and inspection of the boiler. The rack-and-pinion elevator is installed on the outside of the structure and used approximately 25 times per day. The elevator car and landings are made of stainless steel, ensuring long service life in even the toughest environments. 

The decision to invest again in an Alimak elevator was based on the brand’s reputation for safety and reliability in rough environments —which the site easily can be described as.  

Made for industrial use 

Alimak industrial elevators are available with extruded aluminium or stainless steel cars, ensuring long service life in even the toughest environments. The drive unit is located on top of the car, which climbs on a self-supporting mast, requiring no supporting elevator shaft or separate machine room. The mast is made of galvanised steel. The erection of the elevator mast takes place from the car itself. If installed early in the construction process, the elevator can often be used in the actual construction of the building on which it will then remain as a permanent elevator. The design and modular construction of Alimak SE elevators enable specific user requirements to be met from fully standardised components. Capacities range from 300 kg to 7,000 kg. Alimak SE elevators are available in singleor twin-mast configurations and with travel speeds up to 1.0 m/s. The largest Alimak elevator built and delivered so far is a 24,000-kg capacity unit guided on four mast towers. Lifting heights well in excess of 250 metres are possible with Alimak rack and pinion elevators. 

ELEVATOR DETAILS  


Location: Östrand pulp mill, Timrå, Sweden  
Application: Boiler  
Elevator type: Rack and pinion  
Elevator model: ALIMAK SE 700 FC  
Capacity: 700 kg  
Elevator car size (W x L x H): 1.04 m x 1.43 m x 2.17 m  
Speed: 0.8 m/s  
Lifting height: 60 m  
No. of landings: 5 

GALLERY

Alimak’s rugged rack and pinion elevator has earnt a strong reputation in the cement industry over many years of successful installations. This level of trust can be seen in action at the Omya cement plant in Avenza, Italy. 

 They have been impressed by the quality and performance of a previous Alimak industrial elevator installed at the plant in 1991, along with the excellent maintenance record. Omya therefore contacted Alimak when the time came to replace the existing elevator and presented some very specific requirements and parameters.  

The cement plant environment presents some of the toughest working conditions in any industry and therefore calls for an equally robust industrial elevator capable of withstanding a wide range of challenges. Cement plants unavoidably mean an environment subject to dust issues along with high levels of heat and humidity. These conditions can place strain on workers climbing up and down, as well as any equipment which has not been made to high standards, impacting productivity and safety. You can rest assured that all of Alimak’s elevators will stand the test of time, with Alimak’s reputation of industry innovation and high quality manufacturing, all vertical access equipment has been tried and tested in the world’s most demanding industrial settings. Alimak´s shaft-less elevators cuts out the risk of dust particle build up and the traction problems associated with standard elevator operation. 

 Omya presented a challenging brief which required an industrial elevator with a payload capacity of 2,000 kg. In addition, the car dimensions needed to be large enough to transport pallets through a single door for entry and exit located on the opposite side to the elevator mast. The project was further complicated by the very limited space available and predesignated fixing points of the elevators mast tower tie-ins, which could not be adjusted.  

After careful analysis and development work by our expert mechanical engineers, Alimak have been able to produce a specialised rack and pinion elevator for this project which meets the unique specifications while delivering all the benefits of our wide range of robust industrial elevator products. 

ELEVATOR DETAILS  

Location: Omya cement plant, Avenza (MS), Italy

Installation year: 2019

Lift type: Alimak SE 2000 FC

Capacity: 2000kg

Elevator car size: (W x L x H) 1.04 m x 1.43 m x 2.17 m

Speed: 0.6 m/s

Lifting height: 43.5m

No. of landings: 7

GALLERY

Alimak built on a 20 year history of delivering custom vertical access solutions for Duomo di Milano to significantly reduce the time cost associated with accessing the construction site on the roof of the structure. 

Milan Cathedral is the fifth largest church in the world and has a history going back centuries. The Veneranda Fabbrica del Duomo di Milano is the institution responsible for the conservation and development of the Cathedral. Established in 1387 by Gian Galeazzo Visconti, it has been safeguarding and restoring the Duomo for more than 630 years. The Candoglia marble used in the Cathedral requires continuous maintenance work in order to not collapse. It is a very long and ongoing regular maintenance, refurbishment and developing project. There is no set completion date for the works on the landmark. 

Over the last 20 years, Alimak has been chosen as the main supplier of vertical access solutions to Veneranda Fabbrica del Duomo di Milano due to the brand’s worldwide reputation for safety and quality. The Group’s scope of work includes the supply of temporary vertical access equipment, installation and a maintenance contract for the vertical access equipment on site. 

Just six months after commissioning the project in July 2018, Alimak Group dismantled a transport platform to allow the installation of an Alimak Scando 450 construction hoist in January 2019. Sought directly by the customer for their industry-leading vertical access solutions, Alimak was trusted to design, install and maintain a construction hoist that guaranteed rapid and safe access to the top of the cathedral for maintenance. 

The Scando 450 FC12/22 C-door construction hoist that was selected features a 56 metre lifting height and speeds of up to 42m/minute reducing the time taken to access the roof of the cathedral from 5 minutes to just 90 seconds, making it four times faster than the previous transport platform. Overall, the new construction hoist significantly reduces the time cost associated with accessing the construction site on the roof of the cathedral. 

The hoist was also equipped with several special adaptations to accommodate the architecture including a 2.2 metre cabin designed to utilise the limited space available on-site. The hoist was also painted light ivory to blend in with the monument for minimum visual impact as the site is visited by two million tourists each year. 

DETAILS 

Location: Duomo di Milano, Milan, Italy

Applications: Cathedral

Elevator type: Construction Hoist

Elevator model: Alimak Scando 450 FC12/22

Capacity: 2000 kg

Lifting height: 56 m

No. of elevators: 1

GALLERY

In 1989 Alimak supplied three special construction hoists, to solve the access difficulties in the ventilation shaft during the construction of the Channel Tunnel. The 50.5 km undersea rail tunnel links Folkestone, Kent in England with Calais in Northern France. 

The adjacent photo, shows the special construction hoists that were designed by Alimak to meet the high density traffic requirements feeding men and materials down the 9 metre diameter, 100 metre deep shaft from the surface, to the service tunnel face workings on the Channel Tunnel. The logistics involved in the movement of men and materials down the ventilation shaft were described by the user as “enormous”. A 24-hour per day operation was serviced by a three shift system with at first 700 men, increasing to 1200 men, all transported in the hoists. Three Alimak hoists were installed to meet these requirements. In March 1989 Alimak were requested to provide a vertical handling system that would move the total number of men at each shift change. The method developed by Alimak was to provide a double Deck Alimak Scando 20/30 — operating at 28 metres per minute and two Alimak Scando Super 28/37 C units operating at 96 metres per minute. This system gave the flexibility needed by the client, as the total man carrying capacity per journey for the three units was 106. The double deck car was able to discharge both units simultaneously using split landing arrangements at both levels in the shaft. Also available was a total goods carrying capacity of 8.8 tonnes. 

During the first 4 months of operation these units recorded over 7800 running hours.In that period the cages had “clocked up” a total of 4100 km’s over 25,000 cycles. The client carried out standard maintenance procedures on a weekly schedule (4 hours each Saturday morning), and this ensured the reliability and availability of the equipment. Alimak backed up the units by providing 24-hour call out for breakdown cover. 

The three hoists were in continuous operation apartfrom these periods of service shut-down, and allowing for a 90 second load/unload cycle, the combined travelling distance of the three hoists were conservatively estimated at 65,000 km’s each year — well in excess of the usual maximum travelling distance of construction hoist equipment. The double deck hoist was specially developed to suit this application and to give the high density traffic movements required. 

GALLERY

Alimak SE 1200 elevator supplied to provide permanent access to the Maerz Kiln at the lime operation of Buxton Lime & Cement in UK. 

An Alimak SE 1200 rack and pinion driven industrial elevator was supplied to Tarmac, for access to the new Maerz kiln at their lime operation in Buxton. The elevator will be used by the station operators, to transport personnel, tools, parts & larger palletised loads, to improve movement, safety & productivity at the facility. In addition the elevator was designed to allow the movement of a stretcher, to enable movement of an injured person from the upper levels of the kiln. The client chose the robust rack and pinion drive, due its proven 40+ year record in heavy industrial environments such as lime and cement production facilities, power stations, chemical plants, ports, steelworks & offshore vessels. The Alimak rack and pinion driven elevator was ideal for interfacing with the irregular shaped kiln structure, as the Alimak support structure could be adapted to suit varying structural distances. Another benefit was the elevator did not require an expensive supporting elevator shaft and machinery room, which is required with other elevators. Alimak also has a small personnel access elevator operating on a storage silo on the same facility. 

FLEXIBLE FOR ANY TYPE OF APPLICATION AT A PLANT 

A lime plant is a tough place for any piece of machinery to operate in, and the elevator is no exception. Alimak rack and pinion elevators adapt very well to the dusty environment. There is a working solution for any transport requirement within the plant. 

Silos, preheaters, electrostatic precipitators, bagging facilities, chimneys and raw mills are typical applications for Alimak elevators. Elevator capacities may vary depending on the size and weight of the goods to be transported – ranging from maintenance personnel only to heavy replacement parts and sacks. 

Alimak elevators are designed to withstand tough environments, such as high levels of lime dust in combination with high temperatures. 

ELEVATOR DESIGN 

Alimak elevators are designed to operate in demanding industrial environments, outdoors and indoors and require no expensive elevator shafts. The Alimak rack and pinion drive system offers advantages over wire rope and hydraulic elevators. They do not require an expensive machine room as the elevator carries its own machinery and no load bearing elevator shaft is required. The rack and pinion elevator also has safety advantages over traction elevator 

ELEVATOR DETAILS

Location: Buxton Lime & Cement, UK 

Application: Lime kiln 

Elevator type: Rack and Pinion 

Elevator model: Alimak SE 1200  

DOLCapacity: 1200 kg / 16 passengers (2,600 lbs) 

Elevator car size: 1.30 m x 2.08 m x 2.17 m (W x L x H) 

Speed: 24 m/m (80 ft/min) 

Lifting height: 37.92 m (125 ft) 

GALLERY

Alimak service technicians identify and upgrade the electrical equipment and machinery to extend the life of a 25-year-old port crane elevator.  

Installed in 1990, Borg Havn in the city of Fredrikshamn in Norway makes use of an Alimak rack and pinion elevator to access their 45 meter ship-to-shore container crane. A critical piece of equipment at the port, the Alimak elevator not only allows the crane driver easy access to the cabin but is also used during necessary servicing and maintenance, which reduces downtime and improves port efficiency. The elevator also enables swift and safe access for emergency response if required. Following an on-site service inspection, Alimak identified corrosive damage that had occurred to the elevators electrical cabinets. They were damaged beyond repair and required to be dismantled and replaced. 

25 years of service in marine environment 

The elevator was still in operational shape after 25 years of service but due to the port’s need to upgrade it´s container crane, they also opted for an upgrade of the associated elevator at the same time. 

A complete upgrade of the elevators electrical equipment was carried out. Electrical cabinets, all cabling, landing control boxes and the elevator machinery was dismantled and replaced with new equipment. 

Alimak worked closely with the port of Borg Havn throughout the duration of the project, providing engineering, technical, electrical and rigging support. The Alimak rack and pinion elevator has been in operation at the Borg Havn since 2015, providing the port crane driver with access to the container crane. 

ELEVATOR DETAILS  

Location: Borg Havn, Fredrikstad, Norway  

Application: Ship-to-shore container crane  

Elevator type: Rack and pinion  

Elevator model: Alimak Scando Mini 4/9  

Manufacturing year: 1990  

Capacity: 400 kg/3 persons  

Elevator car size (W x L x H): 0.7 m x 0.9 m x 2.15 m  

Speed: 0.65 m/s  

Lifting height: 45 m 

GALLERY