Bohler M340 Precision Mold Parts | CNC Turned Protector Sleeves for Packaging

Product Overview

M340 protector sleeves and mold cores manufactured by CNC turning are precision mould components designed for wear protection and dimensional stability in plastic injection moulds. Using corrosion-resistant M340 stainless steel, these parts provide reliable support for daily packaging mould applications, ensuring consistent performance under high-cycle production and repeated mould operations.

Key Features & Technical Advantages

• Manufactured from M340 stainless steel for corrosion and wear resistance

• CNC turning process for stable concentricity and roundness

• Smooth surface finish to reduce friction and wear

• Designed as protector sleeves or mold core components

• Stable dimensional accuracy for long-term mould operation

• Suitable for high-cavity and continuous production moulds

• Customized / OEM / Built-to-Print manufacturing

Applications & Industry Use

These CNC-turned M340 precision mould parts are widely used in:

• Daily packaging injection moulds

• Bottle cap and closure moulds

• Packaging moulds requiring replaceable wear sleeves

• Multi-cavity plastic injection mould systems

• Mould assemblies with frequent opening and closing cycles

They are typically applied in areas requiring protection of primary mold cores or cavities.

Mould Structure & Design Description

In plastic injection mould assemblies, M340 protector sleeves and mold cores are commonly used as:

• Protective sleeves around core pins or core inserts

• Wear-resistant components in high-contact mould areas

• Replaceable mould parts for maintenance and service life extension

• Precision-fitted components ensuring concentric alignment

All components are produced strictly according to customer drawings, including outer diameter, inner bore, length, tolerance, and installation requirements.

Manufacturing Capability & CNC Machining

Senlan Precision specializes in precision mould component manufacturing with controlled machining processes.
Our production facility is equipped with advanced CNC machines from MAKINO (Japan) and HARDINGE (USA), enabling:

• High-precision CNC turning and milling

• Tight tolerance control for concentricity and roundness

• Consistent surface finish for sliding and protective functions

• Reliable quality for customized and repeat production orders

Each part is manufactured under standardized machining and inspection procedures.

Custom Manufacturing & OEM Process

We provide full customized and OEM manufacturing services, including:

• Built-to-Print production based on customer drawings

• Material selection support for M340 stainless steel

• Prototype, small-batch, and volume production

• Engineering review prior to production confirmation

All projects are executed according to approved technical specifications.

Quality Control & Export Experience

With extensive experience supplying precision mould components to overseas customers, Senlan Precision applies structured quality control procedures:

• Incoming raw material inspection

• In-process dimensional verification

• Concentricity and surface finish inspection

• Final inspection before export packaging

Inspection reports and dimensional data can be provided upon request.

Related Mould Components

• Mold core pins and cavity inserts

• Protective sleeves and wear sleeves

• Precision mould spare parts

• Customized plastic injection mould components

All related products are available on a Built-to-Print basis.

Technical FAQ

Q1: Are these protector sleeves standard parts?
No. All protector sleeves and mold cores are manufactured according to customer drawings.

Q2: Why is M340 material used for these components?
M340 offers good corrosion resistance, wear resistance, and polishability for packaging mould applications.

Q3: Can tight concentricity requirements be supported?
Yes. Concentricity is controlled according to drawing specifications and application needs.

Q4: Are prototype or small-quantity orders accepted?
Yes. Prototype and small-batch orders are supported.

Request a Quotation

For pricing, lead time, or technical consultation regarding CNC-turned M340 protector sleeves and mold cores for plastic injection moulds, please submit your drawings or specifications.
Our engineering team will review your requirements and provide a detailed quotation.