Dowmax MB350 Hydraulic Motor | ME600 ME1300 MB100 | MB350AAS200091

LIC Hydraulic proudly offers the Dowmax ME & MB Series, the premium standard for high-torque, low-speed (LSHT) hydraulic motors. Unlike standard piston motors, Dowmax utilizes a multi-piston design (11 to 13 pistons), providing unparalleled smoothness and efficiency. The featured model MB350AAS200091 is a high-performance Brake Motor, combining a $350\text{cc}$ displacement frame with an integrated hydraulic-release mechanical brake. It is the ultimate solution for heavy-duty applications where precision, safety, and high starting torque are mandatory.

Technical Specifications (Quick Reference)

• Series: MB / ME Series (Axial Piston LSHT).

• Model: MB350AAS200091 (Integrated Brake version).

• Max Pressure: Continuous up to $25\text{–}27.5\text{ MPa}$.

• Speed Range: $1\text{ to }500\text{ RPM}$ (depending on frame size).

• Construction: High-tensile cast iron housing with reinforced internal thrust bearings.

Key Technical Advantages

• Ultra-Low Ripple Torque: The axial multi-piston arrangement ensures that torque fluctuations are virtually non-existent, even at speeds below $5\text{ RPM}$.

• Integrated Safety Brake: The MB350AAS series features a built-in multi-disc brake that is automatically released by hydraulic pressure, ideal for winches and vertical loads.

• High Volumetric Efficiency: Precision-ground internal components maintain high efficiency even at high operating temperatures, reducing system heat and energy waste.

• Direct Drive Capability: Due to its massive torque output, the Dowmax motor often eliminates the need for expensive and bulky gearboxes.

Application Areas

• Industrial Molding: Pre-plasticizing screw drives for injection molding machines.

• Marine & Offshore: Powering anchor winches, mooring capstans, and deck cranes.

• Mining & Boring: Main drive for tunnel boring machine (TBM) cutters and heavy conveyors.

• Construction: High-capacity winches for cranes and lifting platforms.

Expert Maintenance Tips

• Prioritize Case Drainage: Always connect the case drain line directly to the reservoir. High case pressure will cause shaft seal failure and internal mechanical stress.

• Brake Line Maintenance: For the MB350AAS200091, ensure the brake release line is kept clean and free of air bubbles, as air in the brake piston can lead to delayed brake release or dragging.

• Oil Cleanliness: Maintain fluid cleanliness to at least ISO 4406 18/16/13. The precision-fitted pistons and valve plates are sensitive to fine abrasive particles.