35M80A1C20 Vickers Vane Motor Cartridge 172bar

Product Overview

Technical Specifications

• 25M Series: 25M42, 25M55, 25M65
• 35M Series: 35M80, 35M95, 35M115 (incl. 35M80A1C20, 35M9541A20, etc.)
• 45M Series: 45M130, 45M155, 45M185, 45M200
• 50M Series: 50M220, 50M255, 50M300, 50M315 (incl. 50M220A1C20114, etc.)

• 26M Series: 26M42, 26M55, 26M65 (incl. F8-26M65A1C20, etc.)
• 36M Series: 36M80, 36M95, 36M115
• 46M Series: 46M130, 46M155, 46M185, 46M200
• 51M Series: 51M220, 51M255, 51M300, 51M315

• F8-28M55411C20

• Product Type: Positive-Displacement Balanced Vane Motor Cartridge
• Torque Characteristic: Constant Torque Output
• Displacement Range: 43.9 ~ 317.1 cc/rev (2.68 ~ 19.35 in³/rev)
• Continuous Pressure Rating: 155 bar (2,250 psi)
• Intermittent Peak Pressure: 172 bar (2,500 psi)
• Continuous Speed Range: 400 ~ 3,600 rpm
• Maximum Intermittent Speed: 4,000 rpm
• Torque Range: 4.7 ~ 33.9 Nm/bar (0.42 ~ 3.0 lb·in/100 psi)
• Direction of Rotation: Bi-rotational
• Number of Vanes: 10 per cartridge
• Construction: Modular Plug-in Cartridge
• Mounting: Flange or Foot Mounting Options

• Displacement: 43.9 / 57.7 / 68.7 cc/rev
• Torque: 4.7 / 6.2 / 7.3 Nm/bar
• Max Continuous Speed: 3,600 rpm @ 34 bar
• Max Intermittent Speed: 4,000 rpm @ 34 bar
• Theoretical Flow @ 1,200 rpm: 52.6 / 69.3 / 82.5 L/min

• Displacement: 83.6 / 100.3 / 121.9 cc/rev
• Torque: 9.0 / 10.7 / 13.0 Nm/bar
• Max Continuous Speed: 3,600 rpm @ 34 bar
• Max Intermittent Speed: 4,000 rpm @ 34 bar
• Theoretical Flow @ 1,200 rpm: 100.3 / 120.4 / 146.1 L/min

• Displacement: 138.0 / 163.2 / 193.2 cc/rev
• Torque: 14.7 / 17.5 / 20.9 Nm/bar
• Max Continuous Speed: 2,600 rpm @ 155 bar / 3,000 rpm @ 172 bar
• Theoretical Flow @ 1,200 rpm: 165.4 / 195.7 / 232.0 L/min

• Displacement: 231.2 / 268.1 / 317.1 cc/rev
• Torque: 24.9 / 28.8 / 33.9 Nm/bar
• Max Continuous Speed: 2,200 rpm @ 155 bar / 2,400 rpm @ 172 bar
• Max Low-Pressure Speed: 2,800 rpm @ 34 bar (continuous) / 3,200 rpm @ 34 bar (intermittent)
• Theoretical Flow @ 1,200 rpm: 277.5 / 321.8 / 380.4 L/min

• 35M = Series Frame Size
• 80 = Displacement Code (corresponds to 83.6 cc/rev)
• A = Port Connection (SAE 4-Bolt Flange)
• 1 = Shaft Type (Straight Key)
• C20 = Rotation & Design Number (C = Clockwise, 20 = Design Revision)

Key Technical Advantages

Application Areas

• Injection Molding Machine Screw Drive: Constant torque characteristic and wide speed range enable precise screw plasticizing speed control; high starting torque ensures reliable cold-material startup
• Winch/Hoist Drives: High starting torque efficiency enables smooth loaded starting; extremely low torque ripple at low-speed high-torque conditions
• Swing Drives: Upper-structure swing for excavators and cranes — low-speed smoothness and loaded starting capability are critical requirements
• Propulsion Drives: Low-speed hydraulic drive systems for small forklifts, AGVs, and rail vehicles
• Machine Tool Spindle/Feed Drives: Precision machining enabled by wide speed range and low torque ripple
• Fan/Pump Drives: Industrial cooling fans, hydraulic flush pumps, and other constant or variable-speed rotary drives
• Marine Deck Machinery: Capstans, windlasses, and cranes requiring high starting torque and reliable stall protection
• Metallurgical Equipment: Continuous casting roller table drives, rolling mill auxiliary transmissions, and other heavy-duty continuous operation applications

Expert Maintenance Tips

• Fluid Cleanliness Control: Maintain hydraulic oil cleanliness at ISO 4406 17/14/11 or better. The motor’s internal clearances are precision-machined; particulate contamination accelerates wear on the cam ring inner profile and vane tips, causing volumetric efficiency loss and increased internal leakage. Install a 10 μm absolute filter on the return line.
• Viscosity & Temperature Management: Recommended fluid: ISO VG 32–68 anti-wear hydraulic oil. Keep continuous oil temperature below 60°C. Start-up viscosity should be within 20–400 cSt. For cold starts, run the motor at low pressure and low speed for 5–10 minutes to warm the fluid before gradually loading to rated conditions above 20°C oil temperature.
• Case Drain Line Requirements: The M-series motor is equipped with an external drain port that must be piped independently back to the reservoir. Drain line back-pressure must not exceed 0.5 bar. Never combine the drain line with the return line — doing so will pressurize the motor housing, damage seals, and degrade volumetric efficiency.
• Shaft Alignment: Use a flexible coupling between the motor output shaft and the driven load. Concentricity deviation must be controlled within φ0.1 mm to prevent bearing damage from bending moments or radial loads. Tighten flange mounting bolts in a diagonal pattern to ensure reliable face sealing.
• Rotation Direction Verification: While the M-series is bi-rotational, specific suffix configurations must be verified (e.g., 114 suffix = 2,500 psi counter-clockwise / 2,250 psi clockwise; 124 suffix = bi-directional at 2,500 psi). Always confirm rotation direction matches system requirements before commissioning — viewed from the shaft end.
• Stall Protection: The M-series motor can be stalled under load without damage when protected by a relief valve, but stall duration should not exceed 6 seconds (intermittent duty cycle ≤10% of total operating time). Prolonged stalling causes rapid fluid temperature rise and seal damage. A relief valve is mandatory for system protection.
• Cartridge Replacement Interval: Inspect vane wear and cam ring profile condition every 5,000 operating hours. Replace the cartridge assembly when volumetric efficiency drops by more than 15% or starting torque is noticeably reduced. The modular design enables field cartridge replacement in 30–60 minutes without removing the motor from the system.