Friction torque limiter CE

compactstainless steelsafety

Product overview
With the CE-Type, LEBEN offers a maintenance-free deformation tube (so-called crash element) for emergency use, for example as fall protection. The COMPENSER® of the CE series is an irreversible impact-reduction element that absorbs energy by plastic deformation of the tube and by friction, converting it into heat. Several deformation tubes can be arranged in parallel as an end stop if required.

Applications

• Test benches, test fixtures and crash test facilities
• Conveyor systems, conveying technology and material flow systems
• Lifting systems, vertical axes and fall-protection devices
• Actuators, control elements and safety-related motion axes
• Motion systems and positioning equipment
• Custom machines, special machine designs and plant engineering
• Heavy-duty applications
• End stops, emergency stops and overtravel protection in industrial plants
• Crash elements for rare, non-reversible overload and emergency load cases (e.g. railway technology)
• Energy absorbers for leak-free applications without hydraulic media

Design & Function
The crash element is mounted to the support structure via the rear flange (designation 3). In the event of an impact, the plunger (acting as a mandrel, designation 1) enters the deformation tube (designation 2) and expands it by up to 20%. The introduced kinetic energy is converted into deformation energy and, through friction, into thermal energy. The combination of deformation and friction determines the reaction force.
The maintenance-free crash element of the CE series is a cost-effective irreversible impact-reduction element intended for single-use emergency applications: it prevents structural destruction by absorbing the overload. If required, several crash elements can be arranged in parallel.

Designations

• 1 Plunger
• 2 Deformation tube
• 3 Flange

Design / Options

• Specific materials, e.g. stainless steel for highly corrosive environments or for use in the food industry
• Corrosion protection according to DIN EN ISO 12944 up to corrosivity category C5M
• Optional round or square rear flange
• Special mounting elements (e.g. threads) according to customer-specific geometry
• Special impact cap on customer request for particular applications

Technical specifications

• Mounting position: any
• Energy conversion possible in compression and in tension direction
• Very short overall length
• High buckling resistance
• Maintenance-free
• Leakage-free (no hydraulic medium)
• Rear flange
• Surface: galvanized or painted
• Variable reaction-force profile over the stroke possible (e.g. constant, increasing at the beginning, or stepped)
• Designed for extreme temperature ranges
• Energy conversion up to 700 kNm