Screw Grips

Fmax 20 N

Specimen material
Metallfolien, Papier, Garne, Fäden, biologische Materialien, medizinisches Nahtmaterial
Specimen shape
Rund- und Flachproben
Beanspruchungsart:
Tensile

Advantages and features

Simple handling
Lightweight construction
Jaws are already included in the system

Technical data, Fmax 20 N

Item No.	313348
Type	8153
Test load, max. (Fmax)	0.02	kN
Height	60	mm
Width	30	mm
Depth	32	mm
Opening width, max. with jaws	3	mm
Gripping of the specimen	The specimen must be gripped above at least 3/4 of the jaw height.
Weight of one specimen grip (with jaws), approx.	35	g
Connection	Ø 8	mm
Ambient temperature	-70 to +250	°C
Scope of delivery	2	pieces
Jaws supplied
Surface	Aluminum, smooth
Gripping area (H x W)	16 x 20	mm
Hardness	not hardened

Screw Grips

Fmax 200 N

Specimen material:
Yarns, thread, fine wires, metal strips, metallic ribbons, plastic tapes, similar materials
Specimen shape:
Round specimens such as wires, flat specimens such as foils
Type of loading:
Tensile

Advantages and features

Simple handling, good accessibility
Lightweight construction
Large clamping length and low contact pressure; ideal for clamping sensitive and notch-sensitive specimens
Includes centering aid for clamping threads or wires

Technical data, Fmax 200 N

Item no.	313308
Type	8131
Test load, max. (Fmax)	0.2	kN
Height	80	mm
Height with hand wheel	85	mm
Width	81	mm
Depth	30	mm
Depth with hand wheel	48	mm
Opening width, max. with jaws	2	mm
Gripping of the specimen:	The specimen must be gripped above at least 3/4 of the jaw height.
Weight per specimen grip (with jaws), approx.	400	g
Connector	Ø 8	mm
Ambient temperature	-70 to +250^[1]	°C
Scope of delivery	2	pieces

It is possible that the temperature range is limited by a smaller jaw temperature range.

Screw Grips

Fmax 200 N

Specimen material
Ferrous and non-ferrous metals, metallic foils, wire, plastics, textiles, fleece, foam, paper, textiles, insulating material, artificial leather, and similar materials
Specimen shape
Round and flat specimens (strips and dumbbells), asymmetrical specimens, sealed and glued specimens
Type of loading
Tensile

Function description

The screw grip consists of a lightweight yet stiff base.

The clamping unit (lead screw) with the handwheel is used to open, close, and generate gripping force. The clamping unit can always be adjusted step by step. (see graphic on rear side)

The opposing jaw of the screw grip that can be adjusted step by step is permanently mounted, but the gripping range can be adjusted with a tool in 1-mm stages. The specimen grips are factory set to a specimen thickness of 0 mm.

You can set the stepless grip insert of the stepless and step-by-step adjustable screw grip to half specimen thickness. The closing force is generated via the gripping wheel. The opening width can be adjusted from 0 to 10 mm.

Advantages and features

Adjustable opposing jaws allows eccentric specimen insertion, enabling asymmetrical gripping of specimens.
The specimen grips are very easy to operate.
The jaws can be interchanged without tools. They are simply inserted in the jaw mounting and automatically secured by a locating spring.
The large opening width enables flexibility in use.
High gripping force is achieved through an axial bearing in the clamping unit.
The low weight allows the use of load cells with smaller nominal forces.
Virtually symmetrical weight distribution prevents transverse forces to be applied to the load cell.
Very short clamping lengths can be accommodated due to the special geometry of the screw grip and the protruding jaws.
Specimen and component ends that are difficult to access can be gripped with the jaw overhang.
The U-design provides good accessibility to the screw grip and offers ample space for flexible specimen ends.
High temperature resistance (-70 to +250 °C) makes screw grips ideal for use in temperature chambers.
The connector has several retaining holes so that the screw grip can be mounted at 45° and 90°.

Technical data, Fmax 200 N

Item No.	025959	032334	025960	032335
Type	8033	8033	8033	8033
Test load, max. (Fmax)	0.2	0.2	0.2	0.2	kN
Height	60	60	60	60	mm
Width	98 to 108	98 to 108	111 to 119	111 to 119	mm
Depth	20	20	20	20	mm
Standard opening width, max.^[1]	18	18	18	18	mm
Weight per specimen grip (without jaws), approx.	147	147	172	172	g
Connection	Ø 8	Ø 8	Ø 8	Ø 8	mm
Ambient temperature	-70 to +250^[2]	-70 to +250^[2]	-70 to +250^[2]	-70 to +250^[2]	°C
Scope of delivery	2	1	2	1	piece

The standard opening width is a result of using jaws with 4-mm jaw strength and an outwardly adjusted jaw and opposing jaw. If only the opposing jaw is outwardly adjusted (adjustment range up to 9 mm), the maximum opening width is 14 mm.

It is possible that the temperature range is limited by a smaller jaw temperature range.

Screw Grips

Fmax 500 N

Specimen material:
Paper, plastic, metal
Specimen shape:
Flat specimens, strip specimens
Type of loading:
Tensile

Advantages and features

Screw grips are easy to handle.
Specimens can be easily gripped due to the forward facing open design and the ergonomically designed height-adjustable crosshead.
The basic body of the screw grips are designed to serve as an automatic limit stop for 15-mm strip specimens.
Jaws are already included in the system.

Technical data, Fmax 500 N

Item No.	313320	313322
Type	8132	8132
Test load, max. (Fmax)	0.5	0.5	kN
Height	88.5	88.5	mm
Width	77	77	mm
Depth	44	44	mm
Specimen width, max.	15	15	mm
Opening width, max.	3	3	mm
Gripping of the specimen	The specimen must be gripped above at least 3/4 of the jaw height.	The specimen must be gripped above at least 3/4 of the jaw height.
Weight per specimen grip, approx.	0.25	0.25	kg
Connection	Ø 8	Ø 8	mm
Ambient temperature	-70 to +250	-15 to +80	°C
Scope of delivery	2	1	piece
Jaws supplied
Surface	Steel, smooth	Vulkollan, smooth
Gripping area (H x W)	23 x 16	23 x 16	mm
Hardness	200 HB	95 Shore A

Screw Grips

Fmax 1 kN

Advantages and features

Large opening widths offer flexibility
Adjustable opposing jaws allows eccentric specimen gripping, enabling asymmetrical gripping of specimens.
A range of jaws ensures optimum matching to test material: Various materials, surface structures and gripping surface sizes are available.
High gripping force is achieved through the axial bearing and gear ratio in the clamping unit.
Jaws can be changed without tools. Easy side insertion into specimen grip and centering and fixing of jaws follow automatically.
Prestressed spring disk induces automatic retightening in smaller areas. Specimens with lower thickness reduction can also be gripped securely over the course of the entire test.
High temperature resistance (-70 to +250 °C) is ideal for use in temperature chambers.
Simple handling.
The U-design provides good accessibility to the screw grip and offers ample space for flexible specimen ends.
Optional centering stop is easily adjustable to specimen width/diameter and enables centered clamping of specimens.

Technical data, Fmax 1 kN

Item no.	316264				317660
Type	8133	8133	8133	8133	8133	8133
Test load, max. (Fmax)	1	1	1	1	1	1	kN
Height:
Without overhang	85	85	85	85	85	85	mm
With overhang	95	95	95	95	95	95	mm
Width	163 to 183	163 to 183	163 to 183	163 to 183	195 to 215	195 to 215	mm
Depth:
Without hand wheel	32	32	32	32	32	32	mm
With hand wheel	50	50	50	50	50	50	mm
Standard opening width, max. (with jaws)	18^[1]	18^[1]	18^[1]	18^[1]	18^[2]	18^[2]	mm
Gripping of the specimen	The specimen must be gripped above at least 2/3 of the jaw height.	The specimen must be gripped above at least 2/3 of the jaw height.	The specimen must be gripped above at least 2/3 of the jaw height.	The specimen must be gripped above at least 2/3 of the jaw height.	The specimen must be gripped above at least 2/3 of the jaw height.	The specimen must be gripped above at least 2/3 of the jaw height.
Weight per specimen grip, approx.	0.55	0.55	0.67	0.67	0.63	0.81	kg
Connection	Ø 8	Ø 8	Ø 20	Ø 20	Ø 8	Ø 20	mm
Ambient temperature	-70 to +250^[3]	-70 to +250^[3]	-70 to +250^[3]	-70 to +250^[3]	-70 to +250^[3]	-70 to +250^[3]	°C
Scope of delivery	2	1	2	1	2	2	piece

This standard opening width is a result of using jaws with 5-mm jaw strength and an opposing jaw that is outwardly adjusted by 9 mm. This is also the maximum specimen thickness for symmetrically gripped specimens.

This standard opening width is a result of using jaws with 5-mm jaw strength and an opposing jaw in its initial position (= adjustment marks coincide).

It is possible that the temperature range is limited by a smaller jaw temperature range.

Screw Grips

Fmax 2.5 kN

Advantages and features

Large opening widths offer flexibility.
Adjustable opposing jaws allows eccentric specimen gripping, enabling asymmetrical gripping of specimens.
A range of jaws ensures optimum matching to test material: Various materials, surface structures and gripping surface sizes are available.
Jaws can be changed without tools. Easy side insertion into specimen grip and centering and fixing of jaws follow automatically.
High gripping force is achieved through the axial bearing and gear ratio in the clamping unit.
Prestressed spring disk induces automatic retightening in smaller areas. Specimens with lower thickness reduction can also be gripped securely over the course of the entire test.
High temperature resistance (-70 to +250 °C) is ideal for use in temperature chambers.
Simple handling
The U-design provides good accessibility to the screw grip and offers ample space for flexible specimen ends

Technical data, Fmax 2.5 kN

Item No.	316322	316406	317656
Type	8253	8253	8253
Test load, max. (Fmax)	2.5	2.5	2.5	kN
Height:
Without overhang	95	95	95	mm
With overhang	100	100	100	mm
Width	196 to 216	196 to 216	201 to 221	mm
Depth:
Without hand wheel	32	32	32	mm
With hand wheel	50	50	50	mm
Standard opening width, max. (with jaws)	18^[1]	18^[1]	18^[2]	mm
Gripping of the specimen	The specimen must be gripped above at least 2/3 of the jaw height.	The specimen must be gripped above at least 2/3 of the jaw height.	The specimen must be gripped above at least 2/3 of the jaw height.
Weight per specimen grip, approx.	1.2	1.2	1.3	kg
Connection	Ø 20	Ø 20	Ø 20	mm
Ambient temperature	-70 to +250^[3]	-70 to +250^[3]	-70 to +250^[3]	°C
Scope of delivery	2	1	2	piece

This standard opening width is a result of using jaws with 5-mm jaw strength and an opposing jaw that is outwardly adjusted by 9 mm. This is also the maximum specimen thickness for symmetrically gripped specimens.

This standard opening width is a result of using jaws with 5-mm jaw strength and an opposing jaw in its initial position (= adjustment marks coincide).

It is possible that the temperature range is limited by a smaller jaw temperature range.

Screw Grips

Fmax 5 kN

Specimen material:
Plastics, textiles, fabrics, foils, papers, bands, fleece, wood, insulating material, artificial leather, and similar materials
Specimen shape:
Round and flat specimens (strips and dumbbells), asymmetrical specimens
Type of loading:
Tensile

Advantages and features

Jaws are already included in the system.
Simple handling
A large opening width enables a flexible range of application
The U-design provides good accessibility to the screw grip

Technical data, Fmax 5 kN

Item No.	320436
Type	8354 PL^[1]
Test load, max. (Fmax)	5	kN
Height	125	mm
Width	225	mm
Depth	60	mm
Opening width, max.	25	mm
Gripping of the specimen	The specimen must be gripped above at least 3/4 of the jaw height.
Weight per specimen grip, approx.	3.8	kg
Connection	Ø 20	mm
Ambient temperature	+10 to +35	°C
Scope of delivery	1	piece
Jaws supplied
Surface	Vulkollan, smooth
Gripping area (H x W)	50 x 60	mm
Hardness	95 Shore A

PL = ProLine

Screw Grips

Fmax 10 kN

Specimen material:
Metallic foils, wire, plastics, textiles, artificial leather, insulating material, paper, wood (solid, non-yielding materials)
Specimen shape:
Round and flat specimens (strips and dumbbells), asymmetrical specimens
Type of loading:
Tensile, compression, alternating load

Advantages and features

Jaws can be changed without tools. Easy side insertion into specimen grip and centering and fixing of jaws follow automatically.
High temperature resistance (-70 to +250 °C) is ideal for use in temperature chambers.
Integrated jaw mounting.
An increased gripping force is achieved through axial in the clamping unit.

Technical data, Fmax 10 kN

Item No.	320440
Type	8354 PL^[1]	8354
Test load, max. (Fmax)	10	10	kN
Height	125	125	mm
Width	225	233	mm
Depth	60	60	mm
Standard opening width, max. with jaws	25	25^[2]	mm
Gripping of the specimen	The specimen must be gripped above at least 3/4 of the jaw height.	The specimen must be gripped above at least 3/4 of the jaw height.
Weight per specimen grip, approx.	3.9	7	kg
Connection	Ø 20	Ø 20	mm
Ambient temperature	+10 to +35	-70 to +250^[3]	°C
Scope of delivery	1	2	piece
Jaws supplied
Surface	Steel, pr^[4] 0.7	not supplied
Gripping area (H x W)	50 x 60	not supplied	mm
Hardness	61 HRC	not supplied

PL = ProLine

This standard opening width is the result of using jaws with 5-mm jaw strength.

It is possible that the temperature range is limited by a smaller jaw temperature range.

Pr = pyramid grid

Grips for insulating materials

Fmax 10 kN

Text from RS–FB

Advantages and features

The clamping distance is symmetrical to the tensile axis. This is advantageous because the specimen is not subject to bending moments.
Secure gripping is ensured by protruding pins located in the jaws.
A support grip located in the center of the screw grips facilitates gripping and vertical alignment of the specimen.

Technical data, Fmax 10 kN

Item No.	318405	318407
Type	8330	8330
Test load, max. (Fmax)	10	10	kN
Width	256	370	mm
Width with hand wheel	366	480	mm
Height	234	244	mm
Depth	500	500	mm
Opening width/specimen thickness	See jaws	See jaws
Weight per specimen grip, approx.	30	32	kg
Connection	Ø 20	Ø 20	mm
Ambient temperature	0 to +50	0 to +50	°C
Scope of delivery	2	2	piece

Screw Grips

Fmax 20 kN

Specimen material
Ferrous and non-ferrous metals, metal foils, wire, plastic, textiles, artificial leather, insulating material, foam, fleece, paper, wood (rigid, non-flowing materials).
Specimen shape
Round and flat specimens (strips and dumbbells), asymmetrical specimens
Type of loading
Tensile

Advantages and features

High temperature resistance (-70 to +250 °C) is ideal for use in temperature chambers.
Integrated jaw mounting.
An increased closing force is achieved through the axial bearing in the clamping unit.
Jaws can be changed without tools. Easy side insertion into specimen grip and centering and fixing of jaws follow automatically.

Technical data, Fmax 20 kN

Item no.	318591
Type	8355
Operating principle/identification	Opposing jaw can be adjusted steplessly
Test load, max. (Fmax)	20	kN
Height	155	mm
Width	250	mm
Depth	60	mm
Standard opening width, max. with jaws	25^[1]	mm
Gripping of the specimen	The specimen must be gripped above at least 3/4 of the jaw height.
Weight per specimen grip (without jaws), approx.	8	kg
Connector	Ø 36	mm
Ambient temperature	-70 to +250^[2]	°C
Scope of delivery	2	pieces
Jaws supplied
Jaws supplied	Not supplied
Gripping area (H x W)	-
Hardness	-

This standard opening width is the result of using jaws with 5-mm jaw strength.

It is possible that the temperature range is limited by a smaller jaw temperature range.

Screw Grips

Fmax 30 kN and Fmax 50 kN

Specimen material
Ferrous and non-ferrous metals, hard and reinforced plastics, wood, textiles, paper, and similar materials
Specimen shape
Round and flat specimens (strips and dumbbells), asymmetrical specimens
Type of loading
Tensile

Technical data, Fmax 30 kN and Fmax 50 kN

Item No.	325314
Type	8451	8451
Test load, max. (Fmax)	30	50	kN
Height	130	130	mm
Width	108	108	mm
Depth	139	139	mm
Adjustability of the opposing jaw	None	None
Opening width with jaws, max.	10	10	mm
Gripping of the specimen	The specimen must be gripped above at least 3/4 of the jaw height.	The specimen must be gripped above at least 3/4 of the jaw height.
Weight of one specimen grip (without jaws), approx.	6	6	kg
Connection	Ø 36	Ø 36	mm
Ambient temperature	-70 to +250^[1]	-70 to +250^[1]	°C
Scope of delivery	2	2	piece

It is possible that the temperature range is limited by a smaller jaw temperature range.

Screw Grips

Fmax 50 kN

Specimen material
Ferrous and non-ferrous metals, wire, hard and reinforced plastics, wood, textiles, artificial leather, insulating material, paper, and similar materials
Specimen shape
Round and flat specimens (strips and dumbbells), asymmetrical specimens
Type of loading
Tensile

Technical data, Fmax 50 kN

Item No.	313626
Type	8455
Operating principle/identification	Fixed opposing jaw
Test load, max. (Fmax)	50	kN
Height	170	mm
Width	200	mm
Depth	213	mm
Opening width, max. with jaws	25	mm
Gripping of the specimen	The specimen must be gripped above at least 3/4 of the jaw height.
Weight per specimen grip (without jaws), approx.	20.3	kg
Connection	Ø 36	mm
Ambient temperature	-70 to +250^[1]	°C
Scope of delivery	2	pieces

It is possible that the temperature range is limited by a smaller jaw temperature range.

Screw Grips

Downloads

News

Key Advantages and Features

Screw Grips at a Glance

Screw Grips

Screw Grips

Screw Grips

Screw Grips

Screw Grips

Screw Grips

Screw Grips

Screw Grips

Grips for insulating materials

Screw Grips

Screw Grips

Screw Grips

Product Information Available for Download

Related Products(3)

Related Products⁽³⁾