Grips with 90° Deflection

These pneumatic grips for yarn and tire cord are single-actuator grips for clamping fibrous or filamentary tensile specimens.
Grips employing deflection (capstan grips)

Key Advantages and Features

  • With pneumatic end clamping the gripping force remains constant, allowing high specimen throughput.
  • Automatic centering of specimens via guide grooves in the load reduction curve.
  • No transverse forces are transmitted to the load cell via the specimen grips.
  • The symmetrical weight distribution allows the center of gravity of the grips to be near the tensile axis.
Image-Article_PH-Umlenkung-90

Grips with 90° Deflection

  • Specimen material:
    textiles, plastics, metals
  • Specimen shape:
    yarn, tape up to 5mm wide, wire, low-count filament and staple yarns
  • Type of loading: tensile

Advantages and features (90° deflection)

  • Secure holding of the specimen ensures reliable test results, even with specimens prone to shrinkage.
  • High specimen throughput thanks to quick specimen insertion and centering via guide groove.
  • The load-reduction curve ensures gentle gripping with no jaw breaks.
  • The jaws can be changed easily for different applications.
  • Interchangeable load reduction curves enable optimum adaptation of the specimen grips to accommodate different specimen materials.
  • In addition, the specimen grip can also be used vertically without load-reduction curve.
  • Two specimen grips in one. Depending on the specimens, the specimen grips can be used with the load reduction curve as well as without it. As a result, optimal gripping is ensured even with alternating specimens.

Function description

The load-reduction curve with 90° deflection gently reduces the tensile force before the clamping point. Pneumatic clamping ensures constant gripping force with easy, reproducible adjustment. The specimen is held securely and jaw breaks are avoided.

Image 1

Technical data, Fmax 1 kN

Type

8190

8190

Item No.

344647

014771

Test load Fmax

1

1

kN

Gripping force, max. at 6 bar operating pressure

4.2

4.2

kN

Operating pressure

1 ... 6

1 ... 6

bar

Dimensions

Height

105

105

mm

Width

115

115

mm

Depth, upper specimen grip

74.5

74.5

mm

Depth, lower specimen grip

76.5

76.5

mm

Depth with connection unit

91

91

mm

Gripping travel

5

5

mm

Opening width, max. with jaws

5

5

mm

Connection, stud

Ø 8

Ø 20

mm

Weight per specimen grip, approx.

1.4

1.4

kg

Ambient temperature

+10 ... +35

+10 ... +35

°C

Scope of delivery

2

2

pieces

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