High Pressure Hydraulic Cylinders & Tools Manufacturer
Hydraulic tools made in Hangzhou since 2008. After years of OEM and custom work for other companies, HydraStark is our own brand — built and pressure-tested in our own workshop.
Featured Industrial Tools
HSC Series S/A General Purpose Cylinders
Single-acting spring-return general-purpose hydraulic cylinders rated for 700 Bar (10,000 PSI), engineered for industrial lifting, pressing, production fixturing, and structural maintenance across 5 to 100 Ton capacities.
HSCT Series Multi-Stage Telescopic Cylinders
Single-acting spring-return multi-stage telescopic flat hydraulic cylinders rated for 700 Bar (10,000 PSI), engineered for extended stroke lifting in extremely confined overhead clearances without repetitive shimming across 10 to 50 Metric Ton capacities.
HDC Series D/A General Purpose Cylinders
The HDC-Series is a heavy-duty, double-acting general-purpose hydraulic cylinder engineered for high-cycle industrial operations, bridge lifting, hydraulic presses, and structural construction maintenance. Powered by 700 Bar (10,000 PSI) working pressure across 10 to 300 Metric Ton capacities, double-acting hydraulic return delivers rapid, controlled retraction under full tonnage, while an integrated retract-side safety relief valve prevents accidental circuit over-pressurization.
HHN-L Series Mechanical Lock-Ring Hydraulic Nuts
Ultra-high pressure 1500 Bar (150 MPa) mechanical lock-ring hydraulic nuts delivering 226 to 3864 kN pure axial bolt elongation. Eliminates thread galling and friction while integral knurled lock rings permanently preserve bolt pre-tension across M27 to M125 critical flanges.
HSW Series Square Drive Hydraulic Torque Wrenches
The HSW Series 700 Bar square drive hydraulic torque wrenches deliver 112 to 72,000 N·m (82 to 53,280 ft-lbs) across 3/4" to 2-1/2" drives with ±3% precision, titanium-aluminum alloy unibody, and 360° swivel coupler.
Hangzhou HydraStark Hydraulic Machinery Co., Ltd.
We started making hydraulic tools in 2008, built on over 15 years of proven OEM and custom engineering for global industrial brands. HydraStark is our direct factory brand. Based in Fuyang, Hangzhou, our dedicated team machines, assembles and pressure-tests every tool in-house — giving you direct access to the engineers who build them.
Typical Applications
This is a typical application scenario provided for reference. It does not describe a specific customer project.
Typical Application: Multi-Point Synchronous Lifting for Bridge Bearing Replacement
Reference setup for lifting a bridge span or heavy structure at several points at once using double-acting cylinders and a PLC-controlled split-flow pump, so bearings can be replaced while the deck stays level.
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Typical Application: Simultaneous Bolt Tensioning on Large Flanges
Reference setup for tightening many large studs on a pressure-vessel or turbine flange at the same time with 1500 Bar hydraulic bolt tensioners, giving even preload around the joint.
VIEW APPLICATION →Technical Selection & Business Inquiry
Send us your specifications and one of our engineers will reply directly. Standard quotes are quick; custom designs take a little longer.