Operating Lever Horizontal, with Lock Mechanism, with Horizontal Mounting Base

GN 820.3 Toggle Clamps, with extended clamping arm

Toggle Clamps with extended clamping arm GN 820.3 thumbnail

Toggle Clamps with extended clamping arm GN 820.3 sketch

Type

ML	Forked clamping arm, with two flanged washers
MLC	Forked clamping arm, with two flanged washers and clamping screw GN 708.1
OL	Solid clamping arm, with clasp for welding

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Size	F_H in N Holding capacity	a ≈	b₁	b₂	b₃	d₁	d₂	h₁ ≈	h₂	h₃	h₄	h₅ max.

75	900	20	28	26	5,3	M 5	4,5	37	20	11	19	5
130	1000	32	36	40	6,3	M 6	5,6	51	30,5	16	25,5	14
230	1700	37	44	44	8,5	M 8	6,6	61,5	36,5	18	30	12,5
355	1800	58	60	58	10,5	M 10	8,6	83	50	22	37	21,5
455	3200	65	70	65	12,5	M 12	8,7	99	60	26	43	27,5

Filter combination produces no result.

Size	l₁ ≈	l₂ ≈	l₃ ≈	l₄ max.	l₅	m₁	m₂	m₃	r	s₁	s₂	w Adjustable range

75	118	67	40	49,5	45	13,5	16	19	42,5	2	4	15
130	172	92,5	54	65	55	26	22,4	28,4	62,5	2,5	5	17,5
230	196	109	64,5	79	68	26	26	31,5	71,5	3	6	20
355	270	160	98,5	116	77	41	38,8	43	109	3,5	7	19
455	305	184	116	136	100	41,5	40	43	126	4	10	33

Filter combination produces no result.

Specification

Steel

Case-hardened Steel C10
Zinc plated, blue passivated
Bearing pins tempered
Bearing rivets (for size 355 and up) case-hardened

All moving parts
Lubricated with special grease

Hand grip
High quality, oil resistant, red plastic

Clamping screw GN 708.1, type A

Steel, zinc plated
Rubber tip 85 Shore A

RoHS

Accessory

Clamping Screws

Holders for Clamping Screws GN 801 (for Type ML)

Holders for Clamping Screws GN 809 (for Type OL)

Clamping Arm Extenders GN 801.1 (for Type ML)

Clamping Arm Extenders GN 801.2 (for Type ML)

Clamping Arm Extenders GN 809.1 (for Type OL)

Information

Toggle clamps GN 820.3 have a safety function whereby, during closing, a spring loaded safety hook latch ensures a secure locking connection. It prevents the inadvertent unlocking of the clamp due to vibrations or an accidental attempt of loosening / opening of the clamp. To open and release the clamp, pull up on the finger grip to disengage the safety hook latch mechanism (one hand operation).

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

Toggle clamps in the U-bar version with two flanged washers (Type ML) can accommodate an application specific clamping screw. A clamping screw with neoprene rubber tip is also included for type MLC.

Toggle clamps in the type OL version 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 the GN 809 holders for clamping screws to hold the work piece in place.