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GN820.3 Horizontal clamps with safety hook and horizontal base clamping position operators fingers caught avoid zinc plated blue passivated safety function

Standard Machine Elements > Toggle Clamps, Power & Hook Clamps > Toggle Clamps
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GN820.3 Horizontal Clamps with Safety Hook and Horizontal Base


Type ML - forked clamping arm

Type OL - solid clamping arm

Type MLCU-bar version, with two flanged washers and GN708.1 Spindle Assembly

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Tech Spec:


GN820.3 Horizontal Clamps with Safety Hook and Horizontal Base

A special feature of this horizontal clamp GN820.3 is its low profile when in clamping position. They are designed in such a way to avoid the operator's fingers being caught between the retracting clamping arm and the operating handle.

These clamps are fitted with a safety function. During closing, a safety hook ensures a form-locking bolting connection. It prevents the inadvertent or accidental unlocking of the clamping position caused for example, by vibrations. To open, turn the safety hook out of the bolting connection. This can be done with a one-hand operation.

They work according to the toggle principle: the lever and clamping bar move in the opposite direction. They require less space for the clamping action.

Horizontal acting toggle clamps in the U bar version with two flanged washers (Type ML) can accommodate an application specific clamping screw. A spindle assembly with neoprene rubber tip is also included for Type MLC (GN708.1).

Type OL can either be utilized by welding the clasp which can then accommodate an application specific hold-down fastener component, or by utilizing the bar in conjunction with GN809 clamp mounts to hold the work piece in place.

Stepped side washers respectively clamping bolt retainers are included.


Clamping bolts GN708.1, with rubber tip.

GN801 Holders for clamping bolts (for Type ML)

GN809 Holders for clamping bolts (for type OL)


Parts in sheet metal - Case hardening steel C10, zinc plated, blue passivated

Bearing pins - tempered

Bearing rivets (from size 355 upwards) - case hardened

All moving parts lubricated with special grease

Solid moulded handle sleeve - plastic, red, oil resistant

RoHS compliant

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