Slim, strong, and quickly filled: new igus energy chain generation openable without tools

September 30, 2020

igus introduces E4Q, a lightweight e-chain for unsupported lengths and long travels

September 30, 2020 – igus introduced its E4Q energy chain, which offers a smooth, contoured design and a completely new crossbar concept with weight-reducing locking straps. The new design ensures that the e-chain can be opened and closed in seconds without tools.

The energy chain has been specifically developed for the special requirements of unsupported lengths. igus, the Germany-based motion plastics manufacturer based in Germany, runs its North American operations out of Providence, R.I. The environmentally-friend company produces high-tech, cost-down parts for a wide range of movement applications.

High unsupported lengths and long travels with large fill weight create extreme stress on energy chains. The igus developers have designed the E4Q e-chain intended for such application scenarios. Based on the robust energy chain standard E4.1 from igus, the new series brings along a long service life and a high degree of modularity.

In order to optimize material and therefore the weight of the energy chain, shapes inspired by nature are used. The smooth, contoured design can be found on the outside of the chain links as well as on the stop-dogs. Despite material recesses, the new development has a high strength and stability comparable to the E4.1 series.

Tool-free and quick installation with new crossbars

Another special feature of the E4Q are the crossbars. These can be opened and closed without tools. On the top of the crossbar, there are two hollows for the fingers, by which the locking hooks can be easily pulled up. Unlocked on both sides, the crossbar can be removed with little effort. This allows the easy opening and closing of the chain even in a guide trough and accelerates the filling of the e-chain by up to 40 percent.

Another advantage is the new crossbar has significantly higher pull-out forces than its counterparts in the locked state thanks to its innovative type.

New optional additional noise dampening

Due to its special design, the e-chain is in movement. However, if the user desires additional noise reduction, igus has integrated an optional system in the inner horizontal stop-dog for the E4Q. These are two connected balls that dampen the impact during the radius and extension stop. The balls are made of a new noise-optimized and soft material that further reduces the sound level without restricting the stability of the stop-dogs.