Roller grip

The specialist for belt testing

The gripping force is generated by self-gripping via multiple looping and exact strain measurement is performed using optical extensometer systems.

Low overall height of the specimen grips allows specimens with large elongations to be tested.

These roller grips are used for testing tensile strip specimens.

In tests with these grips optical extensometers are used for accurate strain measurement.

The self-clamping action of the grips is generated by multiple looping of the specimen and the application of tensile force.

Roller grips for belt testing, Fmax 50 kN

Roller grips for belt testing, Fmax 100 kN

Seat belt testing with roller grips, Fmax 50 kN

Roller grips for belt testing, Fmax 2.5 kN

Roller grips for belt testing, Fmax 250 kN

Type	8263
Item No.	313438
Test load F_max	2.5	kN
Dimensions
Height	90	mm
Width	58	mm
Depth	39	mm
Roller dimensions
Diameter	20	mm
Width (= clamping width)	40	mm
Surface	Steel, smooth
Specimen dimensions
Flat specimen, thickness	2	mm
Length, min.	500	mm
Weight per specimen grip, approx.	0.4	kg
Connection, stud	Ø 20	mm
Ambient temperature	-70 ... +250	°C
Scope of delivery	2	pieces

Item No.	313630¹	316958¹
Type	8464	8464
Test load F_max	50	50	kN
Dimensions
Height	150	155	mm
Width	130	190	mm
Depth	130	130	mm
Roller dimensions
Diameter	30/100	38/100	mm
Width (clamping width)	60	120	mm
Surface	Steel, smooth	Steel, smooth
Specimen dimensions
Flat specimen, thickness	4	4	mm
Length, min.	1000	1000	mm
Weight per specimen grip, approx.	6.5	9	kg
Connection, stud	Ø 36	Ø 36	mm
Ambient temperature	-40 ... +250	-40 ... +250	°C
Scope of delivery	2	2	pieces

Type	8563
Item No.	315276¹
Test load F_max	100	kN
Dimensions
Height	250	mm
Width	235	mm
Depth	155	mm
Roller dimensions
Diameter	60	mm
Width (clamping width)	110	mm
Surface	Steel, smooth
Specimen dimensions
Flat specimen, thickness	4	mm
Width, max.	-	mm
Length, min.	1400	mm
Connection, stud	Ø 60	mm
Ambient temperature	-40 ... +250	°C
Weight per specimen grip, approx.	11	kg
Scope of delivery	2	pieces

Item No.	313748¹	313840¹
Type	8564	8566
Test load F_max	100	250	kN
Dimensions
Height	210	270	mm
Width	260	400	mm
Depth	170	230	mm
Depth with lever	233	305	mm
Roller dimensions
Diameter	100	130	mm
Width (clamping width)	110	220	mm
Surface	Steel, pr² 1 mm	Steel, pr² 1.5 mm
Specimen dimensions
Flat specimen, thickness	8	10	mm
Width, max.	110	220	mm
Length, min.	1000	1000	mm
Weight per specimen grip, approx.	24	63	kg
Connection, stud	Ø 60	Ø 60	mm
Ambient temperature	+10 ... +35	+10 ... +35	°C
Scope of delivery	2	2	pieces