Bohler M314 Stainless Steel Core Pins | Custom Precision Mold Components

Product Overview

M314 stainless steel mold core pins are precision-machined components designed for injection moulds requiring corrosion resistance, dimensional stability, and high surface integrity. Manufactured from Böhler M314 stainless tool steel, these small-size core pins are suitable for tight cavity layouts and high-precision mould assemblies. Senlan Precision supplies all core pins strictly according to customer drawings under a built-to-print OEM manufacturing model.
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Key Features & Technical Advantages

• Böhler M314 stainless steel with excellent corrosion resistance

• Stable hardness and toughness for long mould service life

• Suitable for small-diameter and high-precision core pin designs

• CNC machining with controlled straightness and concentricity

• Fine surface finish to reduce plastic adhesion and wear

• Fully customized dimensions based on customer drawings (OEM)

Applications & Industry Use

• Injection mould core pins for bottle caps and closures

• Precision mould tooling for packaging components

• Medical plastic mould assemblies requiring corrosion resistance

• Multi-cavity injection mould systems with compact cavity spacing

• High-precision mould inserts for clean production environments

Mold Structure & Design Description

These M314 stainless steel core pins function as forming and supporting elements within injection mould cavities. In small-size and high-density cavity designs, strict control of diameter, straightness, and concentricity is critical to ensure uniform filling and repeatable part geometry. Each core pin is manufactured to match the customer’s mould interface, installation method, and cavity structure, ensuring reliable alignment and stable mould operation.

Manufacturing Capability & CNC Machining

Senlan Precision operates advanced CNC machining and finishing equipment, including systems from MAKINO (Japan) and HARDINGE (USA).

Manufacturing capabilities include:

• Precision CNC turning and cylindrical grinding

• Small-diameter machining with tight tolerance control

• Stainless steel machining optimized for surface integrity

• Batch consistency control for multi-cavity moulds

• Full traceability according to customer drawings

Custom Development & OEM Cooperation

All M314 mold core pins are produced under OEM / Built-to-Print cooperation.

Standard process:

1. Customer drawing and technical requirement submission

2. Engineering review of tolerances and material specifications

3. Machining process planning for small-size core pins

4. Precision CNC machining, finishing, and inspection

5. Packaging and international shipment

No standard or off-the-shelf parts are supplied.

Quality Control & Export Experience

• Incoming inspection of Böhler M314 material certificates

• In-process dimensional verification during machining

• Final inspection for diameter, straightness, and concentricity

• Consistency checks for multi-cavity mould applications

• Stable export experience serving international mould manufacturers

Related Products

• Stainless steel mould core pins and inserts

• Multi-cavity mould precision inserts

• Corrosion-resistant mould components

• Custom mould sleeves and core assemblies

Technical FAQ

Q1: Is Böhler M314 suitable for corrosive plastic materials?
Yes. M314 provides good corrosion resistance and is suitable for humid or aggressive moulding environments.

Q2: Can very small diameters be manufactured?
Yes. Small-diameter core pins can be produced subject to drawing specifications and tolerance requirements.

Q3: Are standard sizes available?
No. All products are manufactured strictly according to customer drawings.

Q4: Can M314 be replaced with other stainless tool steels?
Alternative materials can be reviewed based on customer requirements.

Request a Quote

Please submit your technical drawings and mould requirements to receive a quotation.
Our engineering team will review material selection, tolerances, and cavity design before confirmation.