Precision Pins

precision pin
precision pin
precision pin
precision pin
precision pin
precision pin
precision pin
precision pin
carbide core pins
carbide core pins
carbide core pins
carbide core pins
Core Pins, Ejector Pins
Core Pins with TiN Coating
Core Pins, Ejector Pins
Core Pins, Ejector Pins

GS Machining Co., LTD offers a complete line of precision pins with different steel and carbide. They include dowel pin, ejector pin, core pin, mold pin, carbide pin, hardened pin, location pin, groove pin etc. They are applied to metal stamping, plastic injection&die casting, cold forming and other machinery industries. We has the engineering expertise and experiences to supply special and custom precision pins for our customer’s existing as well as new applications. Our good quality products result in our clients having improved in-plant productivity and quality performance as well as reduced manufacturing costs.

GS Machining capabilities include but are not limited to:

  • Offer special and custom dowel pins with high-strength and high-accuracy. Normally, dowel pins are hardened, tempered and grinded to tolerance m6, peak and chamfer turned.
  • Offer special and custom nitrided ejector pins & core pins. Internal hardness: 40-45 HRC and surface hardness 900HV above. Thickness of nitration case: 0.02-0.05mm. After surface treatment, the ejector pins and core pins will have an anti-wearing and corrosion-resistant surface with fairly high hardness. Meanwhile, its body has fairly low hardness and high tenacity, applicable with molds operating under high temperature.
  • Offer high-speed steel ejector pins & core pins. The minimum diameter of pin to be machined to Φ0.4mm, with maximum precision up to 0.002mm. Further machining is allowed for working end. Due to its high hardness, high grinding resistance and high heat resistance, better for precision mold, capable of increasing the service life significantly, particularly being very effective in controlling the hot deformation for precision mold.
  • Offer special and custom carbide pins. The minimum diameter of carbide pins to be machined to Φ0.05mm. Step-grinding machines are the main equipment to manufacture small carbide pins. There are 6 sets together in our workshop. Thanks to its automation operation, stable quality can be kept. Moreover, it works very efficiently. 1000pcs pins can be produced in one day. They are applied to MT/MPO (Multi-fiberPushOn) optical fiber jumper. HUAWEI is our end customer.   
  • Surface finish on the front end up to Ra0.05-Ra0.1 after fine polishing.
  • Manufactured both in Metric and British standards for special and custom precision pins. 
  • Offer the widest range of in-stock materials including but not limited to A2, D2, M2, M42, M50, H13, 1.2343, 1.2379, 1.2516, 1.7131, 1.3343, HSS, SKD11, SKH 9, SKH51, S600.
  • Offer imported and home tungsten carbide including but not limited to CD650, AF312, MG18, MG30, WF30,WF40, KG7, YG15, YL10.2.
  • 300 series Stainless Steel and 400 series Stainless Steel as well as other grades.

Why Choose Us?

  • Quick Response
    Response in 12 hours and comprehensive quotation will be offered in 24 hours. Valuable advices will be offered from our experienced team.

  • Advanced Equipments
    Wire-EDM from Seibu of Japan, Mirror-EDM from MITSUBISHI of Japan, CNC Grinding Machines etc.

  • Competitive Price
    Located in World Manufacturing City: Dongguan, Guangdong, China. Thanks to complete supply chain here, competitive price can be offered.

  • No MOQ Limitation
    One piece is acceptable and No MOQ limitation. You can have a free choice on your order’s quantity.

  • Free Samples
    Free samples can be provided. Avoiding any quality deviation before placing an order.

  • 100% Quality Control
    100% quality control during production and before delivery. QC reports can be offered together with delivery.

  • On-Time Delivery
    Products delivered by days, not weeks. For simple parts, 3-5 days is available.

  • After-sale Service
    If you aren’t satisfied with our parts, refund your money or replacements will be arranged. No risks of losing money.

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