Safety Products
Basic Types
TYPESHolding force lbsHolding torque in-lbsOperating pressure psi
PRK63-20-4B157.3761.9658
PRK63-20-6B224.8188.5187
PRK80-25-4B236.05106.2158
PRK80-25-6B337.21150.4687
PRK125-40-4B786.83619.5558
PRK125-40-6B112.40885.0787

Clamping Elements
PRK63-20-4B

Rod clamping with maximum clamping force in a compact size

Pneumatic Rod Clamping, Compact
Holding force 157.37 lbs
Holding torque 61.96 in-lbs

Compact and safe: when space becomes restricted, the compact LOCKED PRK clamping elements come into their own. For pneumatic rod clamping with low heights of 28 mm to 34 mm (1.10 to 1.34 in), they provide clamping forces of up to 1,124 lbs (5000 N).

Clamping is carried out by a diaphragm spring-plate system and is released when compressed air is applied. Clamping elements from the LOCKED PRK product family absorb the forces on rods with diameters between 20 mm and 40 mm (0.79 and 1.57 in) both axially and rotationally. The function makes them suitable for use as static clamping without pressure, because the failure or drop of pneumatic pressure triggers immediate clamping. High clamping forces with low system costs compared with hydraulic and electric solutions make these clamping elements particularly interesting.

CAD Drawings

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PRK63-20-4B
Pneumatic Rod Clamping, Compact

Dimensions

PRK63-20-4B
A3.62 inch
B3.15 inch
C0.79 inch
D1.1 inch
E0.08 inch
MM5 inch
NG1/8 inch

Technical Data

Holding torque 61.96 in-lbs

Holding force 157.37 lbs

Operating pressure 58 psi

Rod diameter Ø 0.79 in to Ø 1.57 in

Clamping cycles 1,000,000

Mounting In any position

Material Outer body: Tool steel

Pneumatic medium Dried, filtered air

Operating temperature range 50 °F to 113 °F

Note

When mounting, use hardened piston rod.

On request

Special designs as for example special diameters and accessories available on request. Also available are versions matching to ISO pneumatic cylinders including base plates coordinated to the dimensions of the flange sizes of standard cylinders according to ISO 15552.

General information
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