Roemheld

Wedge-clamping element with patented safety bolts

| Editor: Briggette Jaya

The wedge clamp with clamping bolts, positive-locking safety step and adapter plate ensures safety at the pressing tappet.
The wedge clamp with clamping bolts, positive-locking safety step and adapter plate ensures safety at the pressing tappet. (Source: Roemheld)

A wedge clamper featuring dual functionality and safety functions is the latest to addition to the Roemheld Group's range of clamping technology products for presses and punches.

The latest wedge clamper from the Roemheld Group, which features dual functionality and safety functions, boasts a patented bolt with a positive-locking safety step that can safely hold even heavy upper dies during pressure drops or maintenance work on the die.

According to Roemheld, the combination of automatic movements, position control of the clamping bolt and the built-in safety step is the hallmark of this reliable, easy-to-monitor clamping die. It is good on pressing tappets with angled clamping edges. The robust design enables it to withstand high temperatures and soiling, offering a long service life. The modular design guarantees cost-effective production, high parts availability and short delivery times, Roemheld also claims.

The wedge clamp consists of a hydraulic block cylinder and a housing-guided bolt, with a contact surface angled at 20°. A lug-formed step on the clamping bolt and a corresponding adapter on the die clamping edge provide additional safety. Should a drop in pressure at the pressing tappet arise, the upper die descends onto the safety step and, with the adapter, forms a positive-locking connection that secures the screws and die. A position control checks the clamping and releasing position of the bolt or if no die has been placed or the clamping edge is not set correctly.

Roemheld is making retrofitting easier with adapter plates that can be simply attached to existing dies. The wedge clamp elements are also designed as a variant system, and are offered with a range of design options. Elements with a single or dual function, exerting clamping forces between 25 to 1250 kN, are available for straight and angled clamping edges.

The wedge clamps can also be used virtually maintenance-free, thanks to permanent lubrication. Multi-layer, high-tech coatings can also be applied on request to the bolts and housing to reduce wear and tear. This range of clamping technology can also be used for tasks in sheet forming, plastic and rubber processing. The magnetic, hydraulic and electromechanical clamping systems are versatile, efficient and economical.

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