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Custom Core pins, Ejector pins & Sleeves

Custom Core Pins Φ1.919xΦ7.019-0.005x13mm

Custom Core Pins Φ3.719xΦ6.019-0.005x235mm

Ejector Sleeves Φ2.775xΦ4.156xΦ3.9-0.004-0.011×312mm

Ejector Sleeves Φ2.565xΦ4.237xΦ4-0.004-0.012×270mm

Custom Core Pins Φ3.657xΦ5.019-0.005x11mm

Custom Core Pins Φ2.039xΦ5.119-0.005x16mm

Ejector sleeves Φ20g6xΦ26×450.77mm

Ejector Sleeves Φ3.401+0.008xΦ3.70xΦ12×250.46mm

Dongguan Start Precision Technology Co., Ltd offers a complete line of custom core pins, ejector pins & sleeves with different steels, such as core pins with customized ends, blade ejector pins, stepped ejector pins, straight ejector pins, nitrided ejector pins & sleeves etc. They are applied to cold forming, plastic injection and die casting industries. We has the engineering expertise and experiences to supply special and custom core pins, ejector pins & sleeves 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.

Start Precision Machining capabilities include but are not limited to:

  • Manufacturing Diameters minimum to 0.4mm while holding tolerances down to 0.001mm
  • Manufacturing Point Diameters down to 0.08mm.
  • Manufacturing Lengths up to 1000mm long.
  • Surface finishes down to Ra0.1
  • Manufactured in both in Metric and British for special and custom ejector pins.
  • Concentricity up to 0.005mm, depending on part design could be tighter.
  • 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.
  • 300 series Stainless Steel and 400 series Stainless Steel as well as other grades.

How to Choose Right Core Pins?

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

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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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