Danfoss TMM070 & TMM089 Pump | TMM070B, TMM089B | Concrete Mixer Truck Piston Pump | TMM070B6C42

Danfoss TMM Series High-Pressure Piston Pumps for Concrete Mixer Trucks

Product Overview: The Danfoss TMM series is a premier line of axial piston variable displacement pumps specifically engineered for Concrete Mixer Truck hydrostatic drives. Covering essential displacements including 70cc (TMM070), 84cc (TMM084), and 89cc (TMM089), this series features flagship models like TMM070B6C42NNNDA3MBDN and TMM089B6C42NNNNN0. Built for closed-circuit operation, the TMM series integrates charge pumps and multi-functional valves to handle the demanding constant rotation during transport and rapid reversal during discharge. Its rugged swashplate design ensures maximum uptime under heavy vibrations and the harsh conditions of construction sites.

Key Technical Advantages:

• Heavy-Duty Closed-Loop Design: Features a built-in high-capacity charge pump to maintain stable system pressure, preventing cavitation and extending the lifespan of hydraulic components.

• Extreme Pressure Capability: Rated for continuous operation at 420 Bar (6090 PSI), providing robust torque for mixing high-density concrete even under full loads.

• Refined Operational Control: Optimized control mechanisms offer tactile feedback and smooth engagement, minimizing shock loads on the drum gearbox and rollers.

• Field-Proven Durability: Equipped with reinforced bearings and hardened valve plates, specifically engineered for 24/7 operation in dusty, high-temperature, and intense-vibration environments.

• Integrated Compact Frame: The consolidation of charge pumps, relief valves, and the main pump body simplifies hydraulic plumbing and drastically reduces potential leak points.

Detailed Models & Parameters:

• Core Series: Danfoss TMM Series (Transit Mixer Pump).

• Model Keywords: TMM070, TMM084, TMM089, TMM070B, TMM089B.

• Config Codes: TMM070B6C42, TMM089B6C42.

• Displacements: 70 cm³/rev, 84 cm³/rev, 89 cm³/rev.

• Pressure Ratings: 420 Bar (6090 PSI) continuous; Peak capability up to 480 Bar.

• Target Applications: 8m³ to 12m³ concrete transit mixers and heavy-duty engineering vehicles.