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Hydraulic valves & cylinders

Hydraulic valves and cylinder are utilized in equipment across a wide range of industries - including construction, manufacturing, and mining.
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Quality hydraulic component repairs or replacements.

In industries requiring maximum efficiency and reliability, Allied Hydraulic Services delivers hydraulic cylinder and valve repairs that perform over a long service life. We recognize a broken component risks machine downtime, so our team is dedicated to quickly meeting your hydraulic rebuild, repair, or replacement needs. 

Hydraulic Valves

Allied Hydraulic offers complete valve rebuilding and reconditioning at substantial savings. Valves are completely disassembled, cleaned, and inspected. Worn bodies are precision honed for cleanup and straightness. Pitted and worn spools are pre-ground, chrome plated, finish ground and are refitted back into the valve body to proper tolerance.

All check vales, cylinder ports relief and the main relief are inspected, reseated, and reset to manufacturer’s specifications. All seals are replaced, and the valve is pressure oil tested. Internal leakage is measured in cubic inch leakage per minute and back pressured for external leakage. The valve body is fitted with cap plugs and painted.

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Hydraulic Cylinders

Whether you’re working with an inefficient cylinder experiencing a devastating failure, Allied Hydraulic Services can help.

We diagnose, test and repair tie rod and welded cylinders for multiple brands, including Catepillar, Komatsu, Terex and Parker. Rods are polished or replaced to remove imperfections and all tubes are honed to assure concentricity and finish. All cylinders are tested for internal and external leakage.

Signs your cylinder needs repaired:

  • Actuator starts to slow down
  • Abnormal sounds such as banging or a “stilted/jerking” sound
  • Compromised cylinder mounting
  • Cracked piston, barrel, or other components
  • The piston is wearing on one side
  • Leaking fluid

Not all cylinder issues offer warning signs. Sudden failures require emergency repair services. Our team of skilled technicians can rapidly respond to your emergency situation to minimize downtime and prevent further damage to your equipment.

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Allied Hydraulic repairs most brands of pumps and motors, as well as custom design and fabrication of Hydraulic Power Units.

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Based on our customer’s preferences, we offer technical advice to either repair, rebuild or replace hydraulic systems.

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