Product Overview
The H1P060RAAB1C1BD6HG1NNL33L33FL24PNNNNNNN is a 60/68 frame size closed-circuit axial piston variable pump from Danfoss’ H1P series. The H1P series employs a cradle swashplate design, enabling flow direction reversal by simply tilting the swashplate to the opposite side of its zero-displacement position. The series covers 15 displacement sizes from 45 cm³ to 280 cm³, making it one of the most widely deployed closed-circuit piston pump platforms in mobile hydraulics.
The H1P 060/068 frame size offers displacements from 60.4 to 68.0 cm³/rev, maximum working pressures of 380 to 420 bar, rated speeds of 3,500 rpm, theoretical flows of 210 to 238 L/min, and SAE C mounting flange. The pump is designed for closed-circuit hydrostatic transmissions and can be used with Danfoss H1 series motors or any Danfoss hydraulic motor to control and transfer hydraulic power.
The model code breaks down as follows: H1P identifies the H1 series variable pump; 060 denotes the 60 cm³/rev frame size; R indicates clockwise rotation (Right hand – CW); A is product version A; A is port configuration (ANSI O-ring boss ports); A5 is electrical displacement control (24V Deutsch DT04-2P connector with manual override); C1 is orifice configuration (P = none, A+B = 0.8mm, TA+TB = none); B is displacement limitation (adjustable externally for electrical displacement control); D6 is endcap type (twin port, Code 62 metric 4-bolt flange, suction filter); H is mounting flange (SAE C 4-bolt); G1 is input shaft (14 tooth, 12/24); NN is no auxiliary pad; L33 is protection type side A (pressure limiter + high pressure relief valve, setting 330 bar); L33 is protection type side B (high pressure relief valve + pressure limiter, setting 330 bar); F is charge pump displacement 14 cm³/rev; L24 is charge relief pressure setting 24 bar; PN is electrical displacement control/forward neutral reverse control/manual displacement control valve plate without handle; NNNNNNN is standard option combination.
Every H1P060 unit undergoes 100% simulated operating-condition bench testing prior to shipment, covering pressure cycling, displacement response and thermal shock. Mounting flange, shaft end and port dimensions comply with SAE standards and are identical to the original Danfoss H1P060, ensuring true drop-in interchangeability with zero modification required.
Technical Specifications
H1P Series Frame Size Specifications:
H1P045/053: Displacement 45.0–53.8 cm³/rev (2.75–3.28 in³/rev), max working pressure 380–420 bar (5,511–6,092 psi), rated speed 3,400 rpm, theoretical flow 153–183 L/min (40–48 US gal/min), mounting flange SAE B
H1P060/068 (This Model): Displacement 60.4–68.0 cm³/rev (3.69–4.15 in³/rev), max working pressure 380–420 bar (5,511–6,092 psi), rated speed 3,500 rpm, theoretical flow 210–238 L/min (55.5–62.8 US gal/min), mounting flange SAE C
H1P069/078: Displacement 69.2–78.1 cm³/rev (4.22–4.77 in³/rev), max working pressure 450 bar (6,527 psi), rated speed 3,500 rpm, theoretical flow 243–273 L/min (53.5–72 US gal/min), mounting flange SAE C
H1P089/100: Displacement 89.2–101.7 cm³/rev (5.44–6.21 in³/rev), max working pressure 450 bar (6,527 psi), rated speed 3,300 rpm, theoretical flow 294–335 L/min (77.7–88.5 US gal/min), mounting flange SAE C
H1P115/130: Displacement 115.2–130.0 cm³/rev (7.03–7.93 in³/rev), max working pressure 450 bar (6,527 psi), rated speed 3,200 rpm, theoretical flow 371–419 L/min (98–111 US gal/min), mounting flange SAE D
H1P147/165: Displacement 147.2–165.1 cm³/rev (8.98–10.08 in³/rev), max working pressure 450 bar (6,527 psi), rated speed 3,000 rpm, theoretical flow 441–495 L/min (117–131 US gal/min), mounting flange SAE D
H1P210/250/280: Displacement 211.5–280.2 cm³/rev (12.91–17.10 in³/rev), max working pressure 420–450 bar (6,092–6,527 psi), rated speed 2,600 rpm, theoretical flow 549–728 L/min (145–192.3 US gal/min), mounting flange SAE E
H1P060RAAB1C1BD6HG1NNL33L33FL24PNNNNNNN Additional Specifications:
Model Code: H1P060RAAB1C1BD6HG1NNL33L33FL24PNNNNNNN
Manufacturer Part Number: 83039293
Type: Cradle swashplate axial piston variable pump
Maximum Displacement: 60.4 cm³/rev (3.69 in³/rev)
Minimum Displacement: 0 cm³/rev (infinitely adjustable to zero)
Maximum Working Pressure (Delta): 420 bar (6,092 psi)
Factory Pressure Setting (HP-A/HP-B): 380 bar / 380 bar
Charge Pressure Setting: 24 bar
Rated Speed: 3,500 rpm
Theoretical Flow (at rated speed): ~211 L/min
Control Type: Electrical Displacement Control (EDC), 24V Deutsch DT04-2P connector with manual override
Displacement Limiter: Adjustable externally
Charge Pump Displacement: 14 cm³/rev
Charge Relief Valve Setting: 24 bar
Pressure Protection: Pressure limiter + high pressure relief valve on both sides A and B, setting 330 bar
Mounting Flange: SAE C 4-bolt flange
Input Shaft: 14 tooth 12/24 splined shaft
Rotation: Clockwise (CW / Right hand)
Endcap Type: Twin port, Code 62 metric 4-bolt flange, suction filter
Filtration: Suction filtration
Auxiliary Pad: None
Circuit Type: Closed circuit
Operating Temperature Range: -40°C to +115°C
Hydraulic Fluid: Mineral oil (ISO VG46/68), synthetic oil, water glycol
Weight: ~50 kg
Key Technical Advantages
1. Cradle Swashplate Design for Smooth Reversal and High Total Efficiency
The H1P060 employs Danfoss H1 series’ signature cradle swashplate design, enabling flow direction reversal by simply tilting the swashplate to the opposite side of its zero-displacement position without additional directional valve components. This provides smooth flow output in both forward and reverse directions with shock-free reversal. The H1P series is renowned for high total efficiency, delivering class-leading volumetric and mechanical efficiency among comparable closed-circuit pumps, helping reduce system heat generation and fuel consumption.
2. High Pressure Capability — 420 Bar Delta with Integrated Safety Protection
The H1P060 supports maximum delta working pressure of 420 bar with factory pressure settings of 380 bar on both sides A and B. Both sides feature pressure limiter + high pressure relief valve with 330 bar settings, providing dual overload protection. Closed-circuit systems can operate safely at high power density, suitable for the most demanding mobile hydraulic applications.
3. Compact, Lightweight and Length-Optimized Design
The H1P series features a compact, lightweight and length-optimized construction with the shortest installed length in its class. This makes it particularly suitable for space-constrained mobile equipment such as skid steer loaders, trenchers and asphalt pavers. The SAE C 4-bolt standard mounting flange and 14-tooth splined shaft ensure direct compatibility with mainstream equipment.
4. Electrical Displacement Control (EDC) and PLUS+1® Compliance
This model is configured with Electrical Displacement Control (A5 code) featuring a 24V Deutsch DT04-2P connector with manual override. The H1P series features standardized connector interfaces and supports PLUS+1® compliant control and sensor options for seamless integration with Danfoss machine electronic control systems. The displacement limiter is externally adjustable for optimizing pump displacement range per application requirements.
5. Integral Charge Pump and Suction Filtration
This model features a 14 cm³/rev integral charge pump with 24 bar charge relief valve setting, providing stable charge pressure and cooling/lubrication flow for closed-circuit systems. The D6 endcap configuration (twin port, Code 62 metric 4-bolt flange) integrates suction filtration to protect both charge pump and main pump from contaminants.
6. 100% Simulated Load Testing & Drop-In Interchangeability
Each H1P060 unit is bench-tested under simulated operating conditions prior to dispatch, covering pressure cycling, displacement response and thermal variation. Mounting flange, shaft end and port dimensions comply with SAE standards, matching the original Danfoss H1P060 exactly, enabling direct replacement without any interface modification.
Application Areas
The H1P series is widely deployed in closed-circuit hydrostatic transmissions of mobile hydraulic equipment:
Skid Steer Loaders: travel drive systems requiring compact installation and high power density
Trenchers: travel and tool drives requiring high pressure and reliability
Asphalt Pavers: travel drive systems requiring smooth reversal and precise speed control
Windrowers: turf care equipment travel drives
Aerial Lifts: self-propelled aerial work platform drive systems
Vibratory Rollers: travel drive and vibration systems
Other Mobile Equipment: various mobile machinery requiring closed-circuit hydrostatic transmissions
Expert Maintenance Tips
1. Control Signal Calibration and Displacement Verification: The EDC electrical displacement control requires control signal calibration after installation to confirm minimum displacement position (0 cm³/rev) and maximum displacement position match the technical manual. The displacement limiter is externally adjustable—verify displacement response matches the control system after adjustment. If displacement response exhibits lag or drift, inspect the control spool for sticking and the pilot circuit for air entrainment.
2. Charge Pump and Filtration System Maintenance: The H1P060 features an integral charge pump (14 cm³/rev) and suction filtration as standard. Charge relief valve setting is 24 bar—periodically inspect charge pressure and charge relief valve operating condition. If charge pressure is abnormally high, inspect suction filter for clogging. Replace hydraulic oil and filter after the first 500 hours, then follow a 2,000-hour or annual replacement cycle.
3. Drain Line Management and Housing Priming: The drain port must return to the reservoir independently—housing back pressure must not exceed 2 bar. The drain line end must remain submerged to prevent air ingestion. Fill the housing with clean hydraulic oil before first startup. After extended shutdown, fill the housing again before restarting.
4. Mounting Flange Load Limits: The H1P 060/068 mounting flange rated moment is 2,110 N·m (18,680 lbf·in) and shock load moment is 5,275 N·m (46,690 lbf·in). Ensure coupling alignment deviation does not exceed 0.05 mm during installation to prevent abnormal bearing wear and shaft seal leakage. External radial shaft loads must not exceed allowable values—if continuously applied external loads exceed 25% of maximum allowable radial load, contact a Danfoss representative for bearing life evaluation.
5. Oil Cleanliness and Temperature Control: Maintain system oil cleanliness at ISO 4406 18/16/13 or better. Operating oil temperature should be kept below 80°C—system temperature must not exceed 115°C at any point. VG 46 is recommended at 60°C operating temperature. Case drain temperature is affected by pressure and speed and is always higher than circuit temperature.
6. Periodic Swashplate Mechanism and Piston Group Inspection: The H1P060’s cradle bearings, piston slippers and cylinder bores are primary wear components. Inspect cradle bearing clearance, piston slipper wear and cylinder bore clearance every 2,000 hours. Abnormal efficiency loss, noise or vibration requires immediate shutdown and service. Use Danfoss original specification parts when replacing piston groups or cradle bearings to ensure fit accuracy and assembly torque per technical manual requirements.
