Safety adjustable handles
with push action
ELESA Original design
ErgostyleMain dimensionsMounting holeTeeth no.Weight
CodeDescriptionRLDHh1h2h3d1l1d 6Hhzg
236902ERS.44 A-M4445215.536299281211M4101814
236903ERS.44 A-M5445215.536299281211M5101813
236904ERS.44 A-M6445215.536299281211M6101812
236913ERS.63 A-M66373.519483712371513.5M6132025
236914ERS.63 A-M86373.519483712371513.5M8132024
236935ERS.63 B-M86373.519483712371513.5M8132024
Lever body
Glass-fibre reinforced polyamide based (PA) technopolymer, with "PUSH" tampoprinted in red colour (avoid contact with solvents, alcohol or detergents containing alcohol).

Grey-black, matte finish.

Standard executions
Glass-fibre reinforced technopolymer clamping element, black colour, with knurling on the protruding part to make initial tightening easier. Black-oxide steel retaining screw. AISI 302 stainless steel return spring.
- ERS-A: black-oxide steel boss, threaded blind hole.
- ERS-B: brass boss, threaded blind hole.

Features and applications
Particularly suitable when the lever turning angle is limited owing to lack of space and to avoid any accidental shocks which may affect the clamping action.

Stress resistance
Adjustable handles are generally used for repetitive clamping operations sometimes with very high-frequency.
Therefore, the stress resistance (i.e. the resistance to repeated tightening cycles) of the handle unit is particularly important and, especially, the strength of the toothed element which transmits the tightening force from the handle to the threaded element (boss or stud).
In fact, the results of several laboratory tests, perfomed with a special instrument that simulates the most severe use conditions, have shown that e.g. ERS. adjustable handle can withstand without yielding.
The special glass-fibre reinforced technopolymer enables the ELESA adjustable handles to guarantee stress resistance values which are much higher than the ones generated under normal working conditions.

Instructions of use
For clamping, push the lever to engage the clamping device teeth and turn it. By releasing the lever, the return spring automatically disengages the teeth and the lever returns to its rest position.
In case of accidental shocks, the lever turns freely without affecting the clamping action enabling the operator to manoeuvre in safety.