KRL045DLS202ONNN Danfoss Series 45 Variable Piston Pump 210bar

Product Overview

The KRL045DLS202ONNN3C3BGA6NPLBNNNNNN together with LRL025, LRL030, KRL038, KRL045, KRR038 and KRR045 are precision-engineered interchangeable axial piston variable-displacement pumps fully compatible with the Danfoss (Sauer-Danfoss) Series 45 open-circuit family. Designed in swashplate configuration, flow is proportional to drive speed and displacement and infinitely variable. These units feature load-sensing (LS) and other advanced controls for efficient system performance. They deliver 100% form-fit-function interchangeability with original Danfoss models. Every pump undergoes rigorous 100% simulated operating-condition testing to guarantee volumetric efficiency, low noise and reliability under continuous rated conditions.

Technical Specifications 

• Models: KRL045DLS202ONNN3C3BGA6NPLBNNNNNN (LS load-sensing control); LRL025, LRL030 (L Frame); KRL038, KRL045, KRR038, KRR045 (K Frame)
• Geometric displacement (max): LRL025 – 25 cm³/rev; LRL030 – 30 cm³/rev; KRL038/KRR038 – 38 cm³/rev; KRL045/KRR045 – 45 cm³/rev
• Continuous (working) pressure: 260 bar for 25 cm³ and 38 cm³ models; 210 bar for 30 cm³ and 45 cm³ models
• Maximum pressure: 350 bar for 25 cm³ and 38 cm³ models; 300 bar for 30 cm³ and 45 cm³ models
• Continuous speed: L Frame (25/30 cm³) – 3200 rpm; K Frame (38/45 cm³) – 2650 rpm
• Maximum speed: L Frame – 3600 rpm; K Frame – 2800 rpm
• Minimum speed: 500 rpm
• Theoretical flow at rated speed: 25 cm³ approx. 80 L/min; 30 cm³ approx. 96 L/min; 38 cm³ approx. 100.7 L/min; 45 cm³ approx. 119.3 L/min
• Control options: Load sensing (LS), pressure compensated (PC), remote PC, electric proportional and others
• Mounting flange: SAE-B
• Housing material: High-strength cast iron
• Approximate weight: Axial ports – 19 kg; radial ports – 24 kg
• Circuit type: Open circuit
• Direction of rotation: Left-hand (L) or right-hand (R) available

Key Technical Advantages

1. Compact high power-density swashplate design enables infinitely variable displacement with excellent efficiency, ideal for space-constrained mobile installations.
2. Flexible load-sensing and pressure-compensator controls allow flow to match actual system demand, reducing energy consumption and heat generation; optional PC provides precise pressure limiting.
3. Excellent suction performance and high-speed capability support continuous high-rpm operation with high volumetric efficiency and low noise levels for prolonged duty cycles.
4. Robust cast-iron housing combined with heavy-duty bearings and precision rotating group ensures high rigidity, vibration resistance and extended service life under continuous medium-to-high pressure duty.
5. Full dimensional and functional interchangeability with original Danfoss Series 45 units, including mounting, shaft, ports and controls, plus auxiliary mounting options (SAE-A/B), allows true drop-in replacement and multi-pump configurations without system modifications.

Application Areas

Suitable for open-circuit mobile hydraulic systems including tractor main/auxiliary circuits, telehandlers, wheel loaders, backhoe loaders, forestry machinery, compactors, cranes, agricultural equipment and any application requiring stable medium-to-high pressure variable flow with load-sensing control.

Expert Maintenance Tips

Ensure precise shaft alignment and adequate suction-line conditions during installation to prevent cavitation. Confirm case drain is correctly routed to the reservoir within allowable back pressure before start-up. Use anti-wear hydraulic oil and maintain recommended cleanliness levels with regular filter changes. Set load-sensing or pressure-compensator values according to the system’s maximum working pressure and flow requirements. When using auxiliary/through-drive, observe torque limits of the secondary pump. Periodically inspect the port plate, pistons and bearings; replace serviceable wear components as needed to restore performance. Avoid prolonged over-pressure or overspeed operation.