Hydraulic cylinder grinding tube
The grinding cylinder tube, also known as the grinding tube, is a high-precision seamless steel pipe material made through cold drawing or hot rolling processes. The chemical composition includes elements such as carbon, silicon, manganese, sulfur, phosphorus, chromium, etc. Common materials include stainless steel, carbon steel, alloy steel, and other materials.
The hydraulic cylinder grinding tube has no oxide layer on its inner and outer walls, can withstand high pressure without leakage, has high precision (ellipticity ≤ 0.01mm), high smoothness (surface roughness Ra ≤ 0.08 µ m), and cold bending without deformation characteristics.
The pipe is processed by rolling to achieve chip free forming, and a cold work hardening layer is formed on the surface through metal plastic deformation, which increases fatigue strength by 30%. At the same time, residual compressive stress can seal small cracks to enhance wear resistance and corrosion resistance. Compared to seamless steel pipes, the grinding tube has a smaller outer diameter and higher cold drawing accuracy, with stricter control of inner and outer wall tolerances.
Hydraulic cylinder grinding pipes are mainly used in the fields of hydraulic systems (machine tools, excavator cylinders), pneumatic components, petrochemical pipelines, and aerospace equipment manufacturing. The tensile strength of 27SiMn alloy structural steel after quenching and tempering treatment is ≥ 980MPa, suitable for the manufacturing of high-pressure oil cylinders.
We also provide forging blanks and CNC precision machining services for our clients, covering industries such as energy, petrochemicals, steel, engineering machinery, plastics, prevention and control, hydraulics, healthcare, and food. Please feel free to send us drawings for inquiries.
Metalworking Services
CNC Machining
Sheet Metal Fabrication
Metal Welding
Metal Cutting
Metal Bending
Metal Punching
Metal Forging
Metal Sheet Rolling
Tube and Plate Drilling
Heavy Forging Press Capacity
Our heavy-duty forging presses support open-die forging and deformation of large-section forgings, including discs, shafts, blocks, and custom components. This capability enables us to meet the demanding forming requirements of heavy industrial applications.
Heat Treatment Capability
Heat treatment is a critical step in achieving the mechanical properties required for heavy-duty forgings. Our process capabilities meet the strength, toughness, and structural stability requirements for forged components used under demanding operating conditions.
Heavy Shaft Machining
We offer machining capabilities for large forged shafts and long cylindrical components, supporting both rough and finish machining. This capacity is suitable for stepped shafts, rotor shafts, rollers, and other heavy-duty forged shaft components.
Ring Forging Machining
Our machining facilities are capable of handling large ring-shaped forgings and circular parts that require precise turning, face machining, boring, and contour control. This capability is suitable for industrial ring blanks, heavy-duty circular parts, and machined ring forgings.
Cylindrical Forging Machining
We offer machining solutions for heavy-duty cylindrical, hollow, and tubular forgings. This capability supports the machining of sleeves, cylinders, and other thick-walled forged components used in pressure vessels, rotating systems, and general industrial applications.
Inspection & Testing
Quality control is integrated into our production process through the inspection and testing of forged and machined parts. Our capabilities help verify the dimensional accuracy, condition, and quality consistency of industrial forgings prior to delivery.
Packing & Delivery
Finished forgings are properly protected and packaged to minimize the risk of damage during storage and transportation. Our packaging methods ensure the safe domestic delivery and export shipment of machined and high-value forged components.
