Danfoss 42 Series Pump | 42R28, 42R41, 42L28 | Closed Circuit Piston Pump | 42L28DE1A

Danfoss 42 Series Medium Power Closed Circuit Variable Piston Pumps

Product Overview: The Danfoss 42 series is a cornerstone of hydrostatic drive technology, specifically engineered for medium-power closed-circuit systems. This versatile lineup covers displacements from the compact 28cc (42R28/42L28) to the high-capacity 41cc (42R41). Featured models like the 42L28DE1A603C2A2FNB3030BNNNNNNNN deliver industry-leading efficiency. With its compact integrated design, the 42 series merges the charge pump and control valve blocks, providing exceptionally precise and reliable power for small rollers, professional mowers, agricultural harvesters, and diverse mobile machinery propulsion.

Key Technical Advantages:

• Efficient Closed-Loop Architecture: Optimized for mobile drives requiring frequent reversals and speed modulation, featuring internal balance technology for smooth performance and low energy consumption.

• Compact Integrated Design: Consolidation of charge pumps, relief valves, and controllers within a single housing minimizes external plumbing and significantly reduces potential leak points.

• Superior Power Density: Built with high-strength, lightweight housing, these pumps support pressures up to 350 Bar, ideal for space-constrained mobile machinery chassis.

• Versatile Control Modalities: Supports DE (Electric Displacement Control), MDC (Manual), and other modes, enabling high-precision digital or manual command response.

• Field-Proven Durability: Precision-ground rotating groups and hardened components ensure extended service intervals even under harsh outdoor conditions involving heavy dust and continuous vibration.

Detailed Models & Parameters:

• Core Series: Danfoss 42 Series (Closed Circuit).

• Model Keywords: 42R28, 42L28, 42R41, 42L41.

• Full Config Codes: 42L28DE1A603C2A2FNB3030BNNNNNNNN, 42R41DE1A602B5G2CNA2828NNNNNNNNN.

• Displacements: 28 cm³/rev (1.71 in³), 41 cm³/rev (2.5 in³).

• Pressure Ratings: Rated at 210 Bar (3045 PSI) continuous; Peak capability up to 350 Bar (5100 PSI).

• Maximum Speed: Rated up to 3400 – 4000 rpm.

• Rotation: R (Clockwise/CW); L (Counter-clockwise/CCW).

• Target Applications: Compact vibratory rollers, mower travel drives, harvester propulsion, and telescopic material handlers.