Middle Support Pin
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Middle Support Pin

Manufactured from high-strength tool steel or pre-hardened steel, our pillars feature excellent compressive strength, wear resistance, and long service life.
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Product Introduction

Precision Middle Support Pin for Injection Molds – High Strength & Dimensional Stability

 

We supply high-precision middle support pins for plastic injection molds, die-casting molds, and stamping dies.
Manufactured from high-strength tool steel or pre-hardened steel, our pillars feature excellent compressive strength, wear resistance, and long service life.

 

 

Product Parameters (Specification)

 

Item

Description

Material

20CR/S50C / 1.2311 / 1.2738 / P20 / SKD61 / Custom Steel

Hardness

HRC 30–45 (pre-hardened type) / HRC 58±2 (hardened type)

Diameter Range

Ø16 mm – Ø100 mm

Length Range

25 mm – 300 mm

Surface Finish

Polished / Nitrided / Ground Surface

Tolerance

±0.01 mm

Application

Injection molds, stamping dies, die-casting molds

 

 

Product Features

High Compressive Strength

Effectively supports the mold base and ejector plate under heavy load.

Excellent Dimensional Stability

Machined with tight tolerances to ensure even mold opening and closing.

 

Product Details

 

Each support pillar is CNC-machined and ground on both ends to ensure parallelism within ±0.01 mm.

High-quality pre-hardened steel provides superior rigidity and long lifespan under repetitive mold cycles.

Optional surface treatments such as nitriding or polishing are available to enhance wear and corrosion resistance.

We can also produce custom heights and diameters according to customer drawings or specifications.

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FAQ

 

Q1: What material is recommended for support pillars?

S50C and 1.2311 steels are common for general molds; SKD61 or hardened steel is used for heavy-load molds.

Q2: Can I order custom dimensions?

Yes, OEM/ODM service is available; custom heights and diameters are produced as per drawing.

 

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