As a dedicated hydraulic cylinder company, Tianjin Uranus has established itself as a trusted partner for high - quality cylinders, serving diverse industries from construction to space exploration. Our cylinder portfolio includes: 1. Standard cylinders: ISO 6020/2 compliant, bores 32 - 320 mm 2. Telescopic cylinders: Up to 12 stages, stroke - to - retracted ratio 8:1 3. Rotary cylinders: Torque up to 500,000 N·m 4. Specialized cylinders: Explosionproof, subsea, cryogenic 5. Custom cylinders: Tailored to unique specifications Manufacturing excellence: - Barrel honing: To Ra ≤0.2μm for minimal friction - Rod hardening: Induction hardening to 60 HRC - Seal technology: PTFE - energized seals for 100,000+ cycles - Testing: 1.5x pressure testing and 10,000 - cycle fatigue testing With 5 production lines and 3 testing labs, we ensure consistent quality and on - time delivery. The R&D team continuously innovates, with recent developments including self - lubricating cylinders and smart cylinders with embedded sensors. Contact us for cylinder application guides or view our cylinder testing procedures.