JRL060BLS2021NNN3S1B2A2 Danfoss Series 45 Axial Piston Pump 60cc 310bar

Product Overview

The JRL060BLS2021NNN3S1B2A2 is a Danfoss (Sauer-Danfoss) Series 45 Frame J open-circuit axial piston variable displacement pump. It offers true drop-in interchangeability with original Danfoss units—identical mounting flanges, shafts, and port locations—so no piping or bracket modifications are required. Every unit is 100% tested under simulated operating conditions to guarantee reliable performance at continuous and peak pressures. Flow is proportional to drive speed and displacement and can be steplessly varied by adjusting the swashplate angle. The pump delivers high power density, low noise, and excellent suction characteristics, making it ideal for open-circuit systems in mobile machinery.

Technical Specifications 

• Model: JRL060BLS2021NNN3S1B2A2 (Series 45 Frame J / J60B)
• Displacement: Maximum 60 cm³/rev
• Continuous pressure: 310 bar
• Peak pressure: 400 bar
• Continuous speed: 2600 rpm
• Maximum speed: 3120 rpm
• Minimum speed: 500 rpm
• Control type: LS load-sensing / pressure-compensating
• Weight: approximately 23–27 kg (depending on porting)
• Direction of rotation: L (counterclockwise when viewed on shaft end)
• Mounting flange: SAE standard options
• Compatible fluids: Mineral hydraulic oil

Key Technical Advantages

1. Precision swashplate and rotary group: High-hardness pistons and precision valve plate deliver high volumetric efficiency with minimal internal leakage, optimizing system efficiency.
2. Robust bearing design for extended life: Optimized bearings support the rotating group under high speeds and continuous high-pressure operation, significantly increasing service life.
3. Low noise and excellent suction performance: Optimized housing and rotating group reduce operating noise and pressure pulsation while providing superior suction characteristics for flexible installation.
4. Drop-in interchangeability and flexible control: Exact dimensional and port match to original Danfoss units. The LS load-sensing control offers fast response and precise flow/pressure regulation for easy system integration.
5. Compact design and through-drive capability: High power-to-weight ratio supports multi-pump tandem configurations, ideal for space-constrained mobile equipment.

Application Areas

• Working hydraulic systems on tractors and agricultural machinery
• Auxiliary open-circuit systems on combine harvesters
• Wheel loaders and backhoe loaders
• Forestry machinery and road construction equipment
• Fan drives and auxiliary hydraulic circuits

Expert Maintenance Tips

Ensure suction lines are adequately sized, as short as possible, and free of unnecessary bends; maintain recommended absolute inlet pressure to prevent cavitation. Route the case drain line independently back to the reservoir. Fully bleed the system before first start-up and maintain oil cleanliness at NAS Class 7 or better. Monitor oil temperature and filter differential pressure regularly; use mineral hydraulic oil meeting recommended specifications. Correctly set the load-sensing differential pressure. For long-term storage, fill with clean oil and seal all ports to prevent internal corrosion. When using through-drive, verify torque transmission capacity of the connecting elements.