
PCS
Frequently asked questions
Common questions about PCS from 3G Electric.
What materials are PCS ejector pins made from?
PCS ejector pins are typically made from tool steel, such as AISI D2 or H13, depending on the specific product line. General-purpose stepped ejector pins (e.g., SP3-83) use tool steel with a surface hardness of Rockwell 58 to 62 HRC. Hard core pins (e.g., CPH15-3) are through-hardened to a minimum of 50 HRC on both core and surface. The material choice provides wear resistance and dimensional stability under repeated thermal cycling in injection molds.
What tolerances do PCS angle pins like the APR33-L10 hold?
PCS angle pins, such as the APR33-L10, are manufactured with tight dimensional tolerances. The nominal pin diameter is held to +0.000/-0.0005 in, and the press-fit length is controlled to ±0.005 in. The surface is nitrided to a hardness of 65 HRC with a core hardness of 35 HRC, ensuring wear resistance while maintaining toughness. These tolerances allow for precise alignment in mold slide mechanisms.
Are PCS support pillars like the 1550 available with tapped holes?
Yes, PCS support pillars, such as the 1550 model, are supplied with tapped holes. The 1550 has a 3/8-16 threaded hole and includes a 3/8-16 x 1 in socket head cap screw. The pillar is made from Grade 1040 steel with an outside diameter tolerance of +0.000/-0.015 in and a length tolerance of +0.002/+0.001 in. This design allows for secure mounting in mold bases to prevent deflection under clamping force.
What surface finishes are available on PCS stop discs?
PCS stop discs, such as the SD-15, are available with a black oxide finish. The disc is made from Grade 8620 steel, hardened to Rockwell 58 to 62 HRC. The black oxide coating provides corrosion resistance and reduces glare during inspection. The outside diameter tolerance is ±0.001 in, and thickness is held to ±0.005 in, ensuring consistent stack-up in mold assemblies.
How does 3G Electric ensure PCS components meet specification?
3G Electric provides detailed technical specifications for each PCS SKU, including material grade, hardness, surface treatment, and dimensional tolerances. Datasheets and dimensional drawings are available upon request. All components are sourced directly from PCS or authorized distributors, ensuring traceability and adherence to original manufacturing standards. Buyers can compare specs across multiple SKUs to select the correct part for their application.
Does 3G Electric supply PCS products?
Yes — 3G Electric (S) Pte. Ltd. supplies PCS products. We stock the PCS catalog and supply genuine factory-original products with full manufacturer warranty and technical support.
















































