Feature Size 045 Size 053 Size 060 Size 068
Other ports
SAE O-ring boss
Customer interface threads
Metric fasteners
*
Applies for each rotating group
Operating parameters H1 Tandem
Feature Size 045 Size 053 Size 060 Size 068
Input speed
(at minimum
charge/control
pressure)
Minimum for external charge supply
2)
500 min
-1
(rpm)
Rated
3400 min
-1
(rpm)
3500 min
-1
(rpm)
Maximum
3500 min
-1
(rpm) 4000 min
-1
(rpm)
System pressure Maximum working pressure
420 bar [6090
psi]
380 bar [5510 psi] 420 bar [6090 psi] 380 bar [5510 psi]
Maximum pressure
450 bar [6527
psi]
400 bar [5800 psi] 450 bar [6527 psi] 400 bar [5800 psi]
Maximum low loop
45 bar [650 psi]
Minimum low loop pressure
10 bar [145 psi]
Charge pressure Minimum without CCO (Control Cut
Off) valve
16 bar [232 psi]
Minimum with CCO (Control Cut Off)
valve
18 bar [265 psi]
Maximum
34 bar [435 psi]
Control pressure Minimum (at corner power for EDC,
MDC, FNR)
21.5 bar [312 psi] 18.5 bar [268 psi]
Maximum
40 bar [580 psi]
Case pressure Rated
3 bar [44 psi]
Maximum
5 bar [73 psi]
Lip seal external maximum pressure
0.4 [5.8 psi]
2)
Full performance (pressure and displacement) possible at minimum charge and control pressure supply.
Fluid Specifications
Viscosity and Temperature range
Feature Unit Data
Viscosity
Intermittent
1)
mm
2
/s [SUS]
5 [42]
Minimum
7 [49]
Recommended range
12 – 80 [66 – 370]
Maximum
1600 [7500]
Temperature
range
2)
Minimum
3)
(cold start)
°C [°F]
-40 [-40]
Recommended range
60 – 85 [140 – 185]
Rated
104 [220]
Maximum intermittent
1)
115 [240]
1)
Intermittent = Short term t < 1min per incident and not exceeding 2 % of duty cycle based load-life
2)
At the hottest point, normally case drain port
3)
Cold start = Short term t < 3min, p ≤ 50 bar [725 psi], n ≤ 1000 min-1(rpm)
Service Manual
H1 45/53/60/68 Tandem Closed Circuit Axial Piston Pumps
Technical Specifications
©
Danfoss | June 2018 520L0928 | AX00000103en-US0303 | 23