Product category:
Knobs, Handles and Enclosure Hardware
News Release from: Elesa (UK) | Subject: GN411
Edited by the Engineeringtalk Editorial
Team on 01 November 2007
Clamps grip from within the workpiece
The precise self-centring action of the GN411 provides solid stable clamping of workpieces with uneven or irregular external surfaces
Elesa's GN411 grips the workpiece from within or machining or secondary operations It features an expanding clamp with a multipoint contact system
This article was originally published on Engineeringtalk on 16 Aug 2006 at 8.00am (UK)
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Gripper clamps from within
Sometimes the only way to hold a workpiece for machining or secondary operations is by gripping it from within.
The precise self-centring action of the GN411 provides solid stable clamping of workpieces with uneven or irregular external surfaces, such as castings.
GN411 clamps are available to accommodate bores of 12mm up to 102mm.
Operation is accomplished manually by means of clamping screw or by hydraulic/pneumatic activation.
The unit contains a circular cage with three or six hardened balls (dependant on the size of the unit), which are forced outwards over a double-cone ramp system, thus exerting an outward thrust and gripping the workpiece securely.
For delicate materials the GN411 can be supplied with barrel-shaped hex section segments in place of balls.
These offer a more gentle surface gripping action by spreading the load over a larger area. Request a free brochure from Elesa (UK) ...
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