At THI, we have experience with all types of hydraulic systems including industrial hydraulics (sawmill, paper mills, recycling and scrap yards, etc.), and mobile equipment (excavators, cranes, construction and logging equipment,). We have a machine and weld shop with a variety of services. Also, we can manufacture new parts to your specifications.

We understand that the requirements of this industry are not limited to normal operating hours. We are available 24 hours a day 7 days a week. 

our services

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Our services

Call T.H.I. at (253) 383-5761 for more information.

pumps, valves & motors

field service

  • Complete System Troubleshooting - Electrical & Hydraulic
  • Diagnostics
  • Service
  • Repair
  • Preventative Maintenance
  • System Flushing
  • Component Installation
  • Tubing/Hose
  • Emergency Service
  • 24 Hours a day
  • 7 days a week

  • Pumps Rebuild
  • Hydraulic Motor Rebuild
  • Valves Rebuild
  • 800 Horsepower Test Bench – This test bench is one of a kind in this area. All products are tested to manufacturers' specifications. Each unit is tested under simulated condition for the application. It measures torque providing additional insurance for proper performance of your components.
  • Lapping

  • Hydraulic & Pneumatic Cylinder Repair
  • Precision Honing
  • Precision Machining
  • Chroming
  • Welding
  • Custom Built Cylinders


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