Cylinder: 1. Material preparation (seamless steel pipe, seamless aluminum alloy pipe, etc.) 2. Quality inspection (manufacturer's material certificate, etc.) 3. Quenching and tempering (outsourcing: some special media) 4. Lathe (outer circle, slope, boring mouth, etc.) 5. Welding (welding cooling port, connecting head seat, etc.) 6. Lathe (slot, thread, etc.) 7. Quality inspection 8. Rust prevention and warehousing.
Pistons and guide sleeves: 1. Material preparation (castings, forgings) 2. Inspection (material certification, flaw detection, etc.) 3. Rough turning 4. Fine turning 5. Quality inspection 6. Rust prevention and storage.
Piston rod: 1. Material preparation (finished piston rod) 2. Inspection (material certificate, etc.) 3. Rust prevention storage.
End cover (including booster cylinder, drive cylinder, and directional valve): 1. Material preparation (cast aluminum, oxidation quenching and tempering) 2. Inspection 3. Lathe (rough turning, precision turning) 4. Saw 5, mill 6, boring 7, fitter 8, quality inspection 9, rust prevention and storage.
Assembly: 1. Collect accessories according to the assembly drawings. 2. Clean the parts (including seals and fixtures). 3. Clean the parts. 4. Assemble the parts (in order of the drawings). 5. Assemble the seals. 6. Assemble the parts. 7. Mark (stamp number and date). 8. Factory quality inspection (boosting efficiency, frequency, sealing testing, etc.). 9. Warehousing (statistical number, packaging and partition warehousing). 10. Shipping.