Pneumatic Non-Shift Wedge Grips

Pneumatic Non-Shift Wedge Grips

Pneumatic non-shift wedge grips have an open-front design and use one-touch chucking by foot operation to provide simple specimen mounting. These grips are suitable for tensile testing materials such as plastics and metals.

Grip sets include upper and lower pneumatic non-shift wedge grips and file-teeth grip faces for gripping flat plate specimens. To operate the grips, a foot valve unit is required, and to connect the foot valve unit with an air compressor, a rubber hose is needed. Both are available as accessories.

Pneumatic non-shift wedge grips are operable at air pressures between 0.4 MPa (4 kgf/cm2, 58 psi) and 0.6 MPa (6 kgf/cm2, 87 psi). Additional grip faces for testing rods, wires, high hardness materials, and composite materials can be found in the section Grip Faces for Manual and Pneumatic Non-shift Wedge Grips.

Additional items needed for operation:

  • Foot valve unit
  • Rubber connecting hose
  • 0.5 MPa (5 kgf/cm2, 73 psi) to 0.99 MPa (10 kgf/cm2, 144 psi) air compressor

 

Relevant Materials

Plastics, Metals, Composites

 

Relevant Specimens

Plates, Rods, Wires

 

Operation

When the grips close by action on the foot valve unit, the grip frame is driven down into the vertically static wedged grip faces, causing both grip faces to close horizontally. Once clamped, a constant clamping pressure is applied to the specimen. To release the specimen after testing, grips are opened by action on the foot valve unit.

 

Specifications

Maximum Grip Capacity Applicable Specimen Thickness *1 Grip Face Size Temperature
Range
Grip Size Upper Grip Mass
Upper Grip
Ø Fitting      (Ø pin)
Lower Grip
Ø Fitting    (Ø pin)
kN kgf lbf mm (in) Width Length Width Length
mm (in) mm (in) °C (°F) mm (in) mm (in) kg (lb) mm mm
300 30,000 66,000
0 to 8.5
(0 to 0.33)
50
(2.0)
75
(3.0)
5 to 40
(41 to 104)
225
(8.9)
363
(14.3)
37
(82)
70
(35)
70
(35)
250 25,000 55,000
0 to 8.5
(0 to 0.33)
50
(2.0)
75
(3.0)
5 to 40
(41 to 104)
225
(8.9)
363
(14.3)
37
(82)
70
(35)
70
(35)
100 10,000 22,000
0 to 7
(0 to 0.28)
40
(1.6)
55
(2.2)
5 to 40
(41 to 104)
170
(6.7)
249
(9.8)
15
(33)
50
(17.5)
50
(17.5)
50 5,000 11,000
0 to 7
(0 to 0.28)
40
(1.6)
55
(2.2)
5 to 40
(41 to 104)
170
(6.7)
242
(9.5)
15
(33)
35
(13)
35
(13)
20 2,000 4,400
0 to 7
(0 to 0.28)
25
(0.98)
55
(2.2)
5 to 40
(41 to 104)
118
(4.6)
221
(8.7)
8
(18)
25
(10)
25
(10)
5 500 1,100
0 to 7
(0 to 0.28)
25
(0.98)
55
(2.2)
5 to 40
(41 to 104)
118
(4.6)
216
(8.5)
8
(18)
16
(6.5)
16
(6.5)

Note 1: The applicable specimen thickness is valid only for file teeth grip faces and may change when other grips faces are used.

 

Pneumatic Non-Shift Wedge Grips Dimensions

 

Ordering Information

Part Number Description
Pneumatic Non-Shift Wedge Grip Sets
Includes: upper and lower pneumatic non-shift wedge grips and file-teeth grip faces
343-05840-51 300 kN pneumatic non-shift wedge grip set (model PWG-300kN)
343-05394-51 250 kN pneumatic non-shift wedge grip set (model PWG-250kN)
346-52798-02  100 kN pneumatic non-shift wedge grip set (model PWG-100kNA)
346-52798-01 50 kN pneumatic non-shift wedge grip set (model PWG-50kNA)
346-52675-03 20 kN pneumatic non-shift wedge grip set (model PWG-20kNA)
346-52675-01 5 kN pneumatic non-shift wedge grip set (model PWG-5kNA)
Accessories
343-05395-55 Foot valve unit to operate grips with air hoses to connect to grips
016-02232 Rubber hose, inner diameter 8 mm and length 1 m, to connect the foot valve unit with an air compressor
File-teeth grip faces

Grip Faces

File-teeth grip faces are standard accessories of all pneumatic non-shift wedge grip sets. If you require another type of grip face, please refer to the document "Grip Faces for Manual and Pneumatic Non-Shift Wedge Grips."

For Research Use Only. Not for use in diagnostic procedures.

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