ITM11-700 ITM11-800 ITM11 Radial Piston Motor

Product Overview:

The ITM11 series (ITM11-700, ITM11-800, ITM11-900, ITM11-1000, ITM11-1100, ITM11-1200, ITM11-1300) radial piston hydraulic motors are engineered for low-speed, high-torque applications such as injection molding machines. Featuring a radial piston design, they deliver high starting torque and excellent low-speed stability, ensuring smooth and reliable operation even at extremely low speeds. Manufactured to original technical standards for 100% drop-in interchangeability and fully tested under simulated operating conditions, these motors serve as direct replacements for equivalent units (compatible with Intermot NHM11 series) and are ideal for screw drive, mold adjustment, and rotary table functions in injection molding systems.

Technical Specifications 

• Models: ITM11-700, ITM11-800, ITM11-900, ITM11-1000, ITM11-1100, ITM11-1200, ITM11-1300
• Theoretical displacement: ITM11-700 = 682 ml/r; ITM11-800 = 782 ml/r; ITM11-900 = 894 ml/r; ITM11-1000 = 981 ml/r; ITM11-1100 = 1104 ml/r; ITM11-1200 = 1234 ml/r; ITM11-1300 = 1301 ml/r
• Rated pressure: 16 MPa (14 MPa for some models)
• Maximum pressure: 20–22 MPa (model-dependent)
• Rated torque: ITM11-700 = 1596 N·m; ITM11-800 = 1830 N·m; ITM11-900 = 2092 N·m; ITM11-1000 = 2296 N·m; ITM11-1100 = 2584 N·m; ITM11-1200 = 2527 N·m; ITM11-1300 = 2664 N·m
• Specific torque: approx. 101–192 N·m/MPa
• Maximum speed: 200–280 r/min (model-dependent)
• Rated power: approx. 40–57 kW (model-dependent)
• Control type: Fixed displacement radial piston, bidirectional rotation
• Weight (approx.): 95 kg (series)
• Key feature: Flat compensation oil distribution mechanism for reliable sealing and low internal leakage
• Hydraulic fluid: Mineral oil, optimum viscosity 16–25 mm²/s, oil temperature –20 to +80 °C

Key Technical Advantages:

1. High starting torque and superior low-speed performance enable smooth, reliable operation at extremely low speeds, meeting the precision requirements of injection molding screw drives and mold adjustment.
2. Flat compensation oil distribution mechanism provides excellent sealing, low internal leakage, and simple maintenance, significantly improving volumetric efficiency and service life.
3. Bidirectional rotation capability with shaft ends able to withstand moderate axial and radial external loads offers high adaptability for complex injection molding machine installations.
4. Full dimensional, interface, and performance interchangeability with mainstream equivalents (including Intermot NHM11), combined with 100% simulated duty-cycle testing, ensures consistency, reliability, and reduced downtime and replacement costs.

Application Areas:

Injection molding machines (screw plasticizing/injection drive, mold adjustment mechanisms, rotary table positioning), plastics processing equipment, steel bending machines, conveyor systems, marine and construction machinery requiring smooth low-speed high-torque transmission.

Expert Maintenance Tips:

1. Ensure proper alignment between motor and load during installation to avoid excessive radial or axial loads; verify inlet/outlet piping is clear and correctly connected.
2. Fully fill and bleed the unit before first start-up. Use high-quality mineral hydraulic oil with viscosity 16–25 mm²/s and maintain oil temperature within –20 to +80 °C.
3. Periodically inspect the distribution plate seals and pistons for wear; monitor case leakage and temperature. Avoid prolonged operation above maximum pressure.
4. When replacing, confirm the exact sub-model displacement, pressure rating, and shaft configuration match precisely. Perform unloaded and loaded test runs after installation to verify smoothness and torque output.