HYDRAULIC WEDGE ACTION GRIPS
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2
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Hydraulic wedge action grips feature an open front design, which facilitates easy loading of large specimens. This series can accommodate round specimens up to 90 mm (3.54 in) in diameter and flat specimens up to 90 mm (3.54 in) thick with capacities ranging from 300kN (67,500 lbf) to 2000kN (450,000 lbf). Specially suited for industrial environments where dust and metal chips may be present, these grips have protective dust covers that fit easily over the faces to shield the moving surfaces. Optional adapter plates furnish an efficient method for mounting secondary load strings for lower capacity testing or other fixturing without removing the larger grip.
Principle of Operation These grips are hydraulically operated and the grip body does not move during closing or opening. Hydraulic supply is typically from the main machine frame via a grip submanifold. Jaws are separable inserts held in a jaw carrier which are easy to install with no need to re-grease when changing jaw faces. Grip bodies have grease fittings to allow easy re-greasing of the carrier when needed.
Application Range
Safety Advice
• Type of loading: Tension, *Not suitable for through-zero/reverse stress or fatigue testing • Specimen material: Metals • Specimen shapes: Flat, round
Review safety note on page 234
HYDRAULIC WEDGE ACTION GRIPS Catalog Number
Upper Fitting
Capacity kN
kgf
lbf
W-5245
300
30,000
67,500
M48 × 2 (Type IIfRH)
W-5360
600
60,000
135,000
2
W-5330
1500
150,000
337,500
Bolt flange
3
W-5320
2000
200,000
450,000
W-5340
1000
102,000
225,000
1
Lower Fitting
Effective Length (Excludes Mounting)
Accessory Width
Accessory Weight (Per Grip)
Temperature Rating
mm
in
mm
in
kg
lb
°C
°F
M48 × 2 (Type IIfRH)
660
26.0
445
17.5
123
270
+10 to +38
+50 to +100
M72 × 3p fRH M72 × 3p fRH (Type IIAfRH) (Type IIAfRH)
660
26.0
546
21.5
327
720
+10 to +38
+50 to +100
Bolt flange
1105
43.5
813
32
1140
2500
+10 to +38
+50 to +100
Bolt flange
Bolt flange
1486
58.5
813
32
1250
2750
+10 to +38
+50 to +100
Bolt flange
Bolt flange
1105
43.5
660
26
680
1500
+10 to +38
+50 to +100
Notes: 1. Secondary load string adapting kits are available for mounting smaller tension grips and compression accessories in between these grips.The adapter kit for W-5245 is W-5186. The adapter kit for W-5360 is W-5196. The adapter kit for W-5330 is W-5325. The adapter kit for W-5320 is W-5324.
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