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LinearChain Push-Pull Actuation Devices

The LinearChain is able to move loads both horizontally and vertically. Made of specially formed links, whose geometry prevents the chain from buckling under load, the LinearChain works like a conventional linear actuator.

The LinearChain push-pull chains are made from precision chain links which enable the chain to push as well as pull heavy loads. The chain links have a special profile with interlocking fingers at one end which enables the chain to roll or fold-up for efficient storage in one direction and form a rigid thrust device in the other direction.

Available in three basic sizes with stroke lengths in excess of 5 meters, the LinearChain has a maximum push force of up to 35,000 N.

Compact drive units for the chain and storage magazines are also readily available for all chain sizes.

Find a range of CAD models here, to find which LinearChain will suit your desired application.

Benefits of the LinearChain

  • Require limited space to operate
  • Can be installed horizontally, vertically or on an incline
  • High reliability
  • Long service life
  • Maximum lifting load of 35000 N per linear chain
  • Chain Length can be extended
  • Implementation of practically ‘endless’ strokes
  • Full Stainless option available

LinearChains Available

Thrust from 3KN to 35KN

  • LinearChain SK03 (25PS)
  • LinearChain SK03G (25 PSG)
  • LinearChain SK04 (25PSR)
  • LinearChain SK04G (25PSRG)
  • LinearChain SK05 (25PD)
  • LinearChain SK05G (25PDG)
  • LinearChain SK08 (40PS)
  • LinearChain SK08G (40PSG)
  • LinearChain SK12 (40PSR)
  • LinearChain SK12G (40PSRG)
  • LinearChain SK18 (60PS)
  • LinearChain SK18G (60PSG)
  • LinearChain SK25 (60PSR)
  • LinearChain SK25G (60PSRG)
  • LinearChain SK35 (60PD)
  • LinearChain SK35G (60PDG)

Frequently Asked Questions About LinearChains

What is a LinearChain?

A LinearChain is a specially made mechanical chain which when interlocked uses push and pull strategies to move heavy loads. The combination of the push and pull forces creating the rigid locking design is what differentiates a LinearChain from other linear drive technologies.

How does a LinearChain work?

The drive housing of a LinearChain contains a gear wheel. When this drive house is engaged with the chain it encourages the linear chain to move both forwards and backwards to create a force of push and pull. The chain actuator is made up of two loose ends, one is attached to the load and the other is guided freely, typically rolled up in a storage device to save space.

How does the LinearChain push?

The chain can be operated by an electric motor or a hand winch to create a pushing force. This allows the shoulder of each chain to lock together and also push against each other to create a rigid unit. In turn, this creates a lifting solution or pushing force on the heavy object attached.

How does the LinearChain pull?

The LinearChain is similar to a normal chain in the sense that it can still be wound up in one direction and stored in a magazine, to save space. Pairing this mechanism with a drive element will result in a chain pull on the load, causing the attached load to be pulled.

What can LinearChains be used for?

  • The stage platform in a theatre or concert hall
  • Refrigeration units
  • Bespoke car parking solutions systems
  • Material feeding in production plants
  • Materials handling


  • Window actuators
  • Scissor lifts
  • Telescopic lifts
  • And much more….