Version 1.1
12
2011-06-28
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4.
Technical data
4.1
General data
The quick couplers design follows S-standard for attachment frames.
Hydraulic oil: class HM, HV to CETOP RP 91 H in viscosity grades: ISO VG 32, 46 and 68.
Oil temperature: -30°C to +80°C.
Ambient temperature: -25°C to +55°C.
4.2
Quick coupler QO 70/55 OQ 80
Max. output torque kNm (M)
450
700
Bucket radius mm (L
1
)
1550
1850
Force at bucket edge kN (F)
290
380
M (kNm) = F (kN) x L
1
(m)
Width (mm)
550
590
Weight (approx, kg)
230
320
(see identification plate, depends on excavator)
Quick coupler with 2 parallel hydraulic cylinders
Max. working pressure (MPa)
35
35
Load-bearing hose break valves
yes
yes
Pressure control valves
yes
yes
Piston rod diameter (mm)
55/30
55/30
Stroke (mm)
75
75
Total closing force at 100 bar (kN)
47.5 47.5
Leak-free quick couplers made of steel, OilQuick
Coupling sizes
1/2”
3/4”
1”
Oil flow at 0.3 MPa pressure loss (l/min)
70
140
250
Max. continuous working pressure (MPa)
35
35
35
No. of couplings
OQ 70/55
2
2
2
OQ 80
2
2
V-90 electric coupling
yes
yes
1/2" electric coupling
yes
yes
Quick coupling location
The quick couplers must be visible from the cab.
Couplings 1 and 6: 1/2"
Couplings 2 and 5: 3/4"
Couplings 3 and 4: 1"
If the excavator is fitted with a 1/2" electric coupling, it replaces hydraulic coupling no. 1.
The couplings fitted may vary and depend on the excavator's hydraulic system and what attachments
are to be used.
For further details, please contact your nearest OilQuick dealer.
Summary of Contents for OQ 70/55
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