Parker TK Series Orbit Motor | TK0250 TK0315 TK0400 TK0500 TK0630 | Heavy Duty

The Parker TK Series from LIC Hydraulic is a premier Heavy-Duty Orbit Motor engineered for the most demanding Low-Speed High-Torque (LSHT) applications. Designed to outperform standard orbital units, models like TK0400K5320AAAB and TK0630 are the workhorses of the construction and forestry industries. We guarantee 100% mechanical interchangeability with original Parker units. Every TK motor undergoes 100% simulated torque bench testing, ensuring reliable power delivery and zero external leakage even under extreme radial loads and pressure spikes.

Technical Specifications (Bulleted List)

• Series: Parker TK Series (TK0250, TK0315, TK0400, TK0500, TK0630, TK0800)

• Displacement Range: $15.3\text{ to }61.0\text{ in}^3\text{/rev}$ ($250\text{ to }1000\text{ cc}$)

• Continuous Pressure: $207\text{ bar}$ ($3000\text{ psi}$)

• Intermittent Pressure: Up to $280\text{ bar}$ ($4000\text{ psi}$)

• Max Torque: Up to $19500\text{ lb-in}$ ($2200\text{ N}\cdot\text{m}$)

• Shaft Options: $1.5\text{ inch}$ Keyed, Splined, or Tapered shafts

• Mounting: Heavy-duty SAE 4-bolt or Magneto mount

Key Technical Advantages

• Roller Stator™ Technology: The use of rollers in the stator reduces internal friction and allows for exceptionally smooth low-speed operation. It provides high starting torque and maintains volumetric efficiency across the entire speed range.

• High-Strength Drive Link: The TK series features a significantly oversized internal drive link, designed to withstand the torsional fatigue of frequent reversals and high shock loads common in rock drilling and wood processing.

• High-Pressure Shaft Seal: Engineered to handle high backpressures without the immediate need for a separate case drain in many applications, simplifying your hydraulic circuit design.

• Oversized Tapered Roller Bearings: Capable of handling massive radial and axial loads. This allows the motor to be directly coupled to heavy chain drives or drive wheels without external bearing supports.

Application Areas

• Drilling & Foundation: Auger drives, ground drills, and skid steer attachment drives.

• Forestry: Log processors, wood chippers, and harvester head feed rollers.

• Construction: Road milling machines, cold planers, and concrete mixers.

• Material Handling: Heavy-duty conveyor drives and industrial shredders.

Expert Maintenance Tips

• Case Drain Management: To maximize shaft seal life in high-duty cycle applications, it is highly recommended to connect the case drain port directly to the reservoir.

• Oil Cleanliness: To protect the precision-engineered Roller Stator assembly, maintain oil cleanliness at ISO 18/16/13. Particle contamination is the primary cause of internal scoring and torque loss.

• Cold Start Procedure: In cold climates, allow the hydraulic oil to reach operating temperature before applying full load. Viscous oil can cause excessive internal pressure that may bypass internal seals.