PushPull chain linear drives
Push/Pull LINEAR CHAIN DRIVES FROM GROB
- 7 chain gear size groups.
- Load forces ranging from 3.0 to 35.0 kN.
- Max. lifting height 2.0 meters (without guidance)
- Max. horizontal linear speed 0.6 m/s,
- Max. ambient temperature 180°C, short-term 1050°C.
- Perfect for very dynamic applications at high temperatures as well as in tight spaces
- Designed for regulating and moving loads.
- Perfect if you want to realize long strokes
- Perfect if the available space does not allow the use of “normal” linear lifts
- The chain can be wound and stored
- Maintains absolute position
- Ensures accurate positioning
- Several linear chains can be synchronized
- The standard version of the product is not suitable for use in potentially explosive atmospheres.
- Compliant with EC2006/42/EC Machine Directive and harmonized standard EN1495:1997 Lifting platform – Climbing platform with mast
- Stroke lengths greater than 4,000 mm usually require guidance
- Environment friendly
- Low maintenance costs
Linear PushPull chain – an innovative element of drive technology
Linear lifting chains are important elements in linear drive technology. They develop their true strength where other products, such as screw jacks, are eliminated due to space. Typically, in drive technology, loads are transferred by voltage or pressure. If you use lifting equipment, you can do both: pulling and pushing. A push chain can also do both – and as a chain. You’ll learn how to do it right away.
How the Grob Linear Rigid Chain works:
It consists of specially shaped, precise and mechanical chain links. The chain links are connected to each other in a continuous, shape-fitting manner. The special feature of a push chain (as opposed to a “normal” chain is: It works in both directions – it can pull and “press”).
There is a pinion gear in the push chain drive housing that engages with the intermediate chain links and moves the chain link by one link – both forward and backward. The chain itself has two loose ends. At one end, the load to be moved is attached. The other end can be actuated freely and is usually collapsed in memory. This saves a lot of space and is the main advantage of the push chain. If you were working with a “normal” screw jack, you would need much more installation space for the spindle stroke.
How a push chain works when it “pushes”
A drive element, usually an electric motor, initiates thrust on the chain links. Now the arms of each chain link press against each other and form a rigid unit. This allows them to lift or push loads.
How a push chain works when it “pulls”
It now works like a normal chain and the links can be wound in one direction and can be stored in a warehouse in a space-saving way.
How the push chain is guided
You have two options: either it works on a sliding surface or on a guide rail. The choice of guide depends on both thrust, stroke length and travel speed. A guide is necessary from a certain stroke length to avoid buckling of the push chain.
Typical applications of linear push chain drive:
- Drive in the lifting table
- Riding in an elevator shaft.
- Stage platforms/platforms.
- In the handling of tools and materials
- In warehouse logistics.
- When loading hardening furnaces.
- In refrigeration systems
- In modern construction technology.
- In conveyor systems
- When changing tools on metalworking presses
- In driverless transport systems
- For moving containers
katalog_GROB.pdf – Chapter 5 of the catalog of rigid SK chain drives by GROB
katalog_schubketten_grob.pdf – Grob PushPull Linear Chain Drives Catalog
i5_SK_22.04-i5_DEEN.pdf – User manual for GROB rigid SK chain drives
Grob – zapytanie SK.pdf – Inquiry form for rigid SK chain drives from GROB