Custom Hydraulic Cylinders for Metallurgical & Heavy Machinery

Tianjin Uranus Hydraulic Machinery Co., Ltd. provides custom hydraulic cylinders for the metal powder compaction and powder metallurgy industry. These cylinders are used in hydraulic presses for compacting metal powder into green parts (e.g., gears, bearings, structural components). As a national small giant enterprise with over 30 years of hydraulic experience, we design cylinders that offer precise position and pressure control to ensure uniform part density. Our custom main cylinders for powder compaction presses must have very low friction and high stiffness to achieve precise fill depth and compaction pressure. We use hydrostatic bearings or PTFE-based bearings, and we integrate high-resolution position sensors (0.1 micron resolution). The cylinder rod is made from high-strength tool steel with a mirror finish. For a Japanese powder press manufacturer, we supplied custom main cylinders for a 500-ton press. The cylinders have a bore of 320 mm and a stroke of 300 mm, achieving position repeatability of ±0.005 mm. They have been in service for over 6 years. For multi-action presses (e.g., with multiple punches), we provide custom cylinders for the upper punch, lower punch, and core rod. These cylinders must move in a precisely coordinated sequence. We offer cylinders with integrated proportional valves and control electronics. For a US-based powder metal parts producer, we supplied a set of four custom cylinders for a complex part press. The cylinders are synchronized using a common control system and have achieved part density variation of less than 1 percent. For ejection cylinders, we provide short-stroke, high-force cylinders that push the compacted part out of the die. We use heavy-duty seals and position feedback for precise ejection depth. For a Chinese powder metal manufacturer, we supplied custom ejection cylinders that have been operating for over 8 years. Our design process includes a detailed analysis of the press cycle and force requirements. We provide a test report including step response and positioning accuracy. For a custom cylinder for your powder compaction press and a quote, please contact our engineering team.