Parker TK Series Hydraulic Motor | TK0400 TK0500 TK0630 TK0800 | TK0630K5640AAA

LIC Hydraulic’s Parker TK Series represents the “Heavyweight Champion” of orbital hydraulic motors. Engineered for extreme torque and massive axial/radial load capacities, the TK series (including TK0400, TK0500, TK0630, TK0800, and specific codes like TK0630K5640AAA, TK0500T4631AAAA, and TK0500T6640AAAB) is built for the world’s toughest industries. Utilizing Parker’s patented Torqmotor™ technology with reinforced drive links, these motors handle peak torques up to 2500 Nm. We guarantee 100% Drop-in Interchangeability with original units. Every TK motor undergoes 100% extreme load testing to ensure zero-failure performance in mining, offshore, and heavy construction environments.

Technical Specifications

• Series Model: TK Series (Ultra Heavy-Duty Orbital)

• Displacement Range: 400 cm³/rev to 1000 cm³/rev

• Max Continuous Pressure: 200 bar (2900 PSI)

• Rated Torque Output: 1200 Nm to 2200 Nm (Continuous)

• Radial Load Capacity: Dynamic loads up to 30,000 N

• Mounting Configuration: SAE C 4-Bolt, Wheel Mount options

• Shaft Varieties: 1-1/2″ Straight Keyed, 1-1/2″ Splined, or 1-3/4″ Tapered

• Housing: High-grade Ductile Iron for superior structural integrity

Key Technical Advantages

• Oversized Drive Linkage: The TK series features the most robust internal drive link in the industry, designed specifically to withstand the mechanical fatigue caused by high-frequency start-stops and sudden reversals.

• Extreme Low-Speed Stability: With advanced valve-in-rotor precision, the TK motor delivers smooth, constant torque even at ultra-low speeds (1-5 RPM), making it perfect for heavy conveyors and precise positioning systems.

• Superior Radial Load Support: Massive integrated roller bearings allow the motor to directly drive heavy wheels or handle the intense tension of chain drives without auxiliary support.

• High-Pressure Sealing System: Standard high-pressure shaft seals allow the motor to operate reliably even with significant return line back-pressure, extending the interval between maintenance cycles.

Application Areas

• Heavy Construction: Road roller propulsion, large forklift wheel drives, and drill rig rotation heads.

• Offshore & Forestry: Heavy-duty winches, large wood chippers, and deck machinery for vessels.

• Material Handling: Heavy-mining conveyors and transit mixer drives.

Expert Maintenance Tips

• Mandatory Case Drain: For ultra-heavy-duty motors like the TK series, it is highly recommended to connect the case drain line. This flushes internal heat and protects the large-diameter shaft seals from pressure spikes.

• SAE Flange Security: Given the massive torque generated, vibrations can be intense. Use high-strength bolts with SAE split flanges and periodically check bolt torque.

• Cold Start Protocol: In cold environments, perform a 5-10 minute low-pressure jog cycle to warm the fluid above 20°C (68°F) before applying full load to protect the precision-ground gerotor set.