Alimak Hek launched several new products recently, including two tower crane operator elevators, a medium-range construction hoist, and mastclimbing work platforms.
Alimak developed the internally-installed CabLift with Potain. It can be added to Potain K Mast tower systems 1.6 to 2.45 meters wide and pre-installed on new cranes. A platform at the top of the mast can help create tower sections and ensure that sections of elevator mast fit correctly. Since all of the components are contained within the mast, additional storage, transport, and assembly are not necessary. If power fails, the cabin can descend with gravity. There is also a ladder.
The CabLift’s normal speed is 24 meters per second, but that can be reduced to 12 meters per second. The cabin is accessible through the floor and the roof. It has a capacity of 200 kg, but that can be increased to 240 kg for erecting work.
The externally-mounted TCL has been used on many tower cranes. It does not require any mast modifications and has greater tie distances for reduced assembly times. The mast sections are made from galvanized steel, are 1,508 mm long, and weigh 48 kg. The mast sections have centering notches and captive bolts. The TCL’s capacity and lift speeds are similar to those of the CabLift. Doors can be located on the left or right. The maximum lift height is 90 meters, but that can be increased to 180 meters by mounting the drive motor in the middle instead of the bottom. The cabin is 1.2 meters by 630 mm.
There has been increased interest recently in tower crane elevators due to health and safety requirements in Sweden, the Netherlands, and Denmark, where they are required on cranes more than 30 meters tall. France’s requirement will be reduced from 60 to 30 meters in 2017. Interest is also growing in other countries.
Alimak has introduced the 45/30 medium-range hoist that uses the Scando 450 mast, has similar performance, but costs 20 percent less. It can be used to transport passengers and materials, comes in single and dual car configurations, and has a capacity of up to 2,000 kg per car.
The hoist is available with a Direct on Line or Frequency Control motor system, high-efficiency helical gearbox, and microprocessor control system with stop-next-landing control. The Scando 45/30 has the same payload, load space, and lifting height as the Scando 450, but the speed is 42 instead of 54 meters per minute. The 450 has flexible car lengths and lightweight doors, but the 45/30 does not.
Alimak is almost done with a new range of mastclimbers. It hopes that the new mastclimbers will help it remain a market leader by offering the best technical specifications, prices, and performance. The first model will be the Hek MC 450, which will cost 30 to 35 percent less than the MCM range.
The MC 450 will be available in single or twin mast configurations. Platform lengths will range from 4.2 to 10.2 meters for single mast configurations and 8.4 to 30 meters for twin mast configurations. Platform widths are 1.2 and 2.2 meters for both configurations and have speeds of 8 and 9.6 meters per minute. The first tie position is at 3 meters. Tie distances range from 8 to 10 meters, and the maximum tied lift height is 200 meters.
The MC 450 should be available in December. Developments will be made in the coming months to the centrifugal brake, deck rotators, harness anchor points, anti-collision device, and a web tool to compare the time and cost required for a mast climber to those for scaffolding.