End Socket

End Socket for Machinery – Technical Specification

1. Core Parameters

• Industry: Machinery
• Product Name: End Socket
• Material: Copper (T2, standard GB/T 5231-2012)
• Material Properties: Conductivity ≥98% IACS, Density 8.96 g/cm³, Melting point 1083℃, Tensile strength ≥205 MPa, Yield strength ≥60 MPa, Elongation ≥30%
• Wall Thickness: 8.0 mm, Thickness Tolerance ≤±0.15 mm
• Coating: None
• Dimensions: Ø815 mm × H132 mm
• Dimensional Tolerance: Compliant with GB/T 1804-2000 m-grade precision, Roundness error ≤0.3 mm, Perpendicularity error ≤0.2 mm/m
• Surface Roughness: Ra ≤1.6 μm

2. Manufacturing Process

• Core Process: CNC metal spinning forming + precision machining. Equipment: Large CNC spinning lathe (model KMS-1200), CNC vertical machining center.
  1. Spinning parameters: spindle speed 400–800 r/min, roller feed 3–8 mm/s, single pass deformation 0.8–1.2 mm, cumulative deformation 7–8 mm to ensure uniform 8.0 mm wall thickness.
  2. Machining parameters: spindle speed 1200–1500 r/min, cutting speed 150–200 m/min, feed 0.1–0.2 mm/rev.

• Raw Material Pre-treatment: T2 copper sheets degreased in alkaline solution (55–65℃, NaOH 5–8%, 10–15 min), neutralized, dried (80–100℃, 20–30 min), leveled (flatness error ≤0.2 mm/m). Ensures clean, defect-free, homogeneous copper without segregation.
• CNC Process Control: UG software modeling → G-code generation → CNC spinning system path setup. Real-time diameter, height, and wall thickness monitoring (sampling 15 Hz), closed-loop precision control. Ports and connection faces machined on CNC center, flatness ≤0.1 mm/m.
• Post-Processing: Mechanical deburring (2800 r/min, 1200# grit), high-pressure air blow, surface polishing Ra ≤1.6 μm, final dimensional and visual inspection.

3. Quality Control

• Standards: ISO9001:2015 and GB/T 5231-2012. Full-process quality management from raw materials to finished products.
• Material Inspection: Spectrometer for composition (Cu ≥99.90%, total impurities ≤0.10%, ±0.05% error); tensile testing for mechanical properties; ultrasonic inspection for internal defects.
• Process Inspection:
  1. Spinning profile: curvature template ≥98%, wall thickness via ultrasonic gauge ±0.01 mm.
  2. Dimensions: CMM ±0.005 mm.
  3. Surface: Visual + 20× magnification, no scratches, dents, cracks; roughness via profilometer.
  4. Edges: no burrs, chamfer R ≥2.5 mm.
  5. Internal: X-ray RT inspection, JB/T 4730.2-2005 Level II.

• Finished Product Inspection: Sampling per GB/T 2828.1-2012, AQL 2.5; includes dimensional, material, surface, internal, and assembly conformity. Each unit carries traceable QR code with material batch, equipment, operator, and processing time.

4. Production Capacity & Delivery

• Capacity: 4 large CNC spinning lathes, 3 CNC machining centers, 2 polishing machines. Line production, 15 pcs/day per line (2 shifts, 8h), max 900 pcs/month.
• Lead Time: Small batch (3–20 pcs): 8–12 days; Large batch (≥30 pcs): 15–22 days; urgent orders: 5–7 days (subject to capacity prioritization).
• Delivery: Custom foam + cardboard + wooden box, 3 pcs per box, anti-collision support. Domestic delivery: first-tier cities 3–5 days, remote 5–8 days. On-site delivery available with 5-day advance notice.
• Customization: Sizes Ø300–1200 mm, H50–300 mm; Copper grade T3, TP2; connection types (flange, threaded). Requires client-provided installation parameters and work conditions; feasibility review: 3 working days.

5. Application Scenarios

• Core Use: End sealing and protective covers for machinery housings, cylinders, pipelines; installed on hydraulic cylinders, gearboxes, industrial pipelines, compressors. Ensures sealing, dust protection, and load-bearing.
• Working Conditions: -20℃–250℃; suitable media: hydraulic oil, lubricating oil, industrial water; rated pressure ≤2.5 MPa; compatible with hydraulic, transmission, compression, and conveyor machinery.
• Interface Requirements: Dimensions must match Ø815 mm × H132 mm and corresponding machine end, compatible with flange or threaded connection as per installation drawings.

6. Extended Applications

• Extended Use: End covers for new energy machinery, precision instruments, marine machinery, heavy mining machinery.
• Description:
  1. New energy machinery: end seal for motors and energy storage, copper for thermal conductivity.
  2. Precision instruments: protective end cover for dust and contaminant prevention.
  3. Marine machinery: corrosion-resistant copper end covers.
  4. Heavy mining machinery: thick copper end cover for impact and load resistance.

7. After-Sales Service

• Warranty: 24 months from acceptance; covers material, dimensional, processing defects, sealing failures, pressure inadequacy. Free replacement or repair; logistics and onsite service included.
• Technical Support: Pre-sale selection consultation; installation manuals, dimensional drawings, material certificates, and quality reports; on-site or remote guidance for large orders.
• Feedback: 24-hour response, solution within 1–3 working days, dedicated follow-up.
• Post-Warranty Services: Paid repair, replacement, or refurbishment (polishing, dimension correction, connection modification); optional long-term inspection contracts for machinery end covers (1–2 times/year).

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