Pincer Grips

These grips are primarily used for testing highly ductile plastics and elastomers. The pincer principle produces a strong increase in gripping force during the test.
Pincer Grips

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Key Advantages and Features

Advantages and features

  • Secure specimen gripping through gripping force increasing proportionally to tensile force
  • The lateral mobility of the pincer grips allows specimens always to be loaded centrically to the test axis.
  • Ergonomic, open design for fast, easy specimen insertion and clamping
  • The grips are easy to operate in a temperature chamber and reach the test temperature quickly thanks to their very low mass.

Applications

  • Specimen material:
    elastomers, soft plastics
  • Specimen shape:
    flat specimens
  • Type of loading:
    tensile

Operating principle

The pincer grip is a double actuator grip. The pincer grip is opened and closed via a clamping lever.

The prestressed spring holds the specimen grip open for specimen insertion. If the specimen grip is closed, the prestressed spring generates the required gripping force.

The gripping force is increased proportionally by the pincer principle as the tensile force increases. This ensures automatic retightening for specimens prone to shrinkage.

Pincer Grips
Pincer Grips

Technical Overview

Technical Overview of pincer grips in test loads Fmax 500 N / 2.5 kN / 5 kN / 10 kN

Fmax 500 N

Item No.

316268

316294

Type

8122

8122

Test load Fmax

0.5

0.5

kN

Dimensions

Height

65

65

mm

Height (open)

41

41

mm

Width

111

111

mm

Width (open)

124

124

mm

Depth

41

41

mm

Opening width, max.

15

15

mm

Specimen thickness, max.

15

15

mm

Specimen gripping

The specimen must be gripped over at least 3/4 of the jaw height.

Gripping area (H x W)

12 x 30

12 x 30

mm

Weight per grip unit, approx.

0.35

0.35

kg

Connection, mounting stud

Ø 8

Ø 8

mm

Ambient temperature

-40 to +250

-40 to +250

°C

Scope of delivery

2

1

pieces

Fmax 2.5 kN

Item No.

316286

316296

Type

8222

8222

Test load Fmax

2.5

2.5

kN

Dimensions

Height

97

97

mm

Height (open)

61

61

mm

Width

157

157

mm

Width (open)

178

178

mm

Depth

49

49

mm

Opening width, max.

20

20

mm

Specimen gripping

The specimen must be gripped over at least 3/4 of the jaw height.

Weight per grip unit, approx.

1.2

1.2

kg

Connection, mounting stud

Ø 20

Ø 20

mm

Ambient temperature

-40 to +250

-40 to +250

°C

Scope of delivery

2

1

pieces

Fmax 5 kN

Item No.

069915

069914

Type

8322

8322

Test load Fmax

5

5

kN

Dimensions

Height

128

128

mm

Height (open)

88

88

mm

Width

224

224

mm

Width (open)

236

236

Depth

66

66

mm

Opening width, max.

26

26

mm

Specimen gripping

The specimen must be gripped over at least 3/4 of the jaw height.

Weight (with jaws), approx.

3.6

3.6

kg

Connection, mounting stud

Ø 20

Ø 20

mm

Ambient temperature

-40 to +250

-40 to +250

°C

Scope of delivery

2

1

pieces

Jaws included

Gripping area (H x W)

26 x 60

26 x 60

mm

Hardness

700 HV

700 HV

Fmax 10 kN

Item No.

314615

314950

Type

8322

8322

Test load Fmax

10

10

kN

Dimensions

Height

128

128

mm

Height (open)

88

88

mm

Width

224

224

mm

Width (open)

236

236

mm

Depth

66

66

mm

Opening width, max.

26

26

mm

Specimen gripping

The specimen must be gripped over at least 3/4 of the jaw height.

Weight (with jaws), approx.

3.6

3.6

kg

Connection, mounting stud

Ø 20

Ø 20

mm

Ambient temperature

-40 to +250

-40 to +250

°C

Scope of delivery

2

1

pieces

Jaws included

Gripping area (H x W)

26 x 60

26 x 60

mm

Hardness

700 HV

700 HV

X

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