Product Description
Precision pins have many specific names in different application scenarios and structural characteristics, including round, square, hexagonal smooth shafts; rubbing shafts, flat head nail shafts, pot head nail shafts, U-shaped shafts, groove cutting and grinding drilling shafts, positioning pins, bayonet pins, double-hole cylindrical pins, knurled pins, fixed shafts, pulley shafts.
Stainless Steel: 304/316 (corrosion resistant, commonly used in medical/food equipment)
Carbon Steel: 45# (high hardness, low cost)
Copper Alloy: brass H59/H62 (good conductivity, electronics industry)
Aluminum Alloy: 6061/7075 (lightweight, aerospace)
High Precision: one clamping completes multiple processes such as turning, milling, drilling, knurling, etc., with a tolerance of ±0.01mm common.
Advantages of Slender Shafts: suitable for small shaft parts with diameter ≤32mm and length ≤50mm.
High Efficiency: automatic feeding, monthly production capacity of batch production exceeds 100,000 pieces.
Material Pretreatment: bar materials need to be straightened to avoid processing deformation.
Tool Management:
- Micro-diameter tools (such as φ0.5mm drill bits) should be replaced regularly to prevent breakage;
- Knurling knives need to calibrate the consistency of pattern depth.
Cooling Control: Stainless steel processing requires sufficient cutting fluid to prevent thermal deformation.
Conventional Fit: ±0.02mm (such as toys, furniture pins)
Precision Grade: ±0.01mm (medical/electronic components)
Surface Roughness: Ra≤1.6μm (knurled shaft)
Full inspection Items:
- Dimensional tolerance (with micrometer/projector);
- Surface hardness (HRC 28-45, depending on the material).
Sampling Inspection Items:
- Salt spray test (stainless steel ≥72h);
- Fatigue strength (hydraulic support pins must be ≥785MPa).
According to the different needs of customers, provide personalized solutions and recommend suitable materials and design drawings to customers. The factory is equipped with advanced processing equipment, such as CNC lathes, Swiss machines, CNC, etc., which can ensure processing accuracy and efficiency. In terms of quality control, a strict quality inspection system has been established to ensure that product quality meets standards. Moreover, the factory can also provide comprehensive after-sales service to promptly solve problems encountered by customers during use.
