for different loads System compression springs absorb forces when they are compressed, which they release again when they are relaxed. They thus act as a mechanical energy store. Springs are used in tool making – especially in die making...

Ejector accelerator Now also available for Ø 2.0 – 2.2 mm The ejector accelerator (30141) is considered a simple and worthwhile standard solution, especially for plastic parts that are difficult to demould. The rocker-like design of the...

Groth Kunststofftechnik relies on KNARR for demoulding complex parts When it comes to demoulding complex undercuts, mould makers often use multi-level tools. The mould makers at Groth in Vlotho rely on the high-quality latch locks from...

Transport lock for ejector set The primary function of transport locks is, of course, to protect moulds during transport. The moving parts in particular might cause shocks and vibrations that can lead to inaccuracies or even serious...

Screw and sealing plug with O-ring NEW: Stainless steel version with high temperature restistant O-ring In order to avoid distortion of the plastic part, a homogeneous temperature balance in the mould is crucial. The positioning of the...

Eye bolts for all applications Lifting & rigging accessories at KNARR Eye bolts are used when large loads are moved.The ring or eye bolt owes its name to the ring-shaped eyelet. As so-called lifting and rigging equipment, they establish...

Your roadmap to individual venting Venting solution for flat ejectors, shouldered ejector pins and ejector sleeves KNARR’s manufacturing techniques also enable the new venting variant for other areas of ejection technology such as flat...

The next generation of venting Mould optimisation through cavity venting Often, air or gasses are produced during the injection moulding process that must not be trapped in the cavity under any circumstances. Otherwise, cavities are created...

Sprue holding pins Different types available Regardless of the type of sprue holding pin used, there is a standardised undercut at the end of the shaft. With its help, the solidified plastic is retained in the sprue runners. This ensures...