S136 Precision Cavity Inserts | 0.01mm Roundness & Concentricity Mold Parts

Product Overview

Senlan Precision manufactures S136 stainless steel front mold inserts with integrated oil grooves for injection moulds used in daily packaging applications. Built strictly to customer drawings, these inserts deliver controlled concentricity and roundness within 0.01 mm, supporting stable mould alignment, efficient lubrication, and consistent part quality in high-cavity production.

Key Features & Technical Advantages

• S136 stainless steel for corrosion resistance and dimensional stability

• Concentricity & roundness ≤ 0.01 mm for precise mould alignment

• Integrated oil groove design to support lubrication and reduce wear

• Precision CNC machining and fine grinding for tight tolerances

• Suitable for multi-cavity and high-cycle injection moulds

• Custom / OEM / Built-to-Print manufacturing

Application Scenarios / Industry Applications

• Daily packaging moulds (caps, closures, dispensing components)

• Bottle and container mould tooling

• High-cavity injection mould systems requiring stable alignment

• Precision mould assemblies where lubrication control is critical

Mold Structure & Design Description

The front mold insert is positioned on the cavity side to ensure accurate guidance and alignment during mould closing. Oil grooves are machined according to drawing specifications to maintain controlled lubrication paths, minimizing friction and wear. Tight control of coaxiality and roundness ensures uniform load distribution and stable mould performance across long production cycles.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision operates advanced machining and inspection resources, including:

• MAKINO high-precision CNC machining centers (Japan)

• HARDINGE CNC turning systems (USA)

• Precision cylindrical and internal grinding for form accuracy

• EDM for complex oil groove or internal features (as required)

• In-process and final dimensional inspection for concentricity and roundness

These capabilities support consistent production of high-accuracy front mold inserts.

Custom Development / OEM Cooperation Process

1. Drawing and technical requirement review

2. Material and heat treatment confirmation (S136)

3. CNC machining, grinding, and oil groove processing

4. Dimensional inspection (concentricity, roundness, surface finish)

5. Final approval and export packaging

All projects follow a Built-to-Print OEM workflow.

Quality Control & Export Experience

• Incoming material verification and traceability

• Precision inspection for coaxiality and roundness

• Process control records for critical dimensions

• Experience supplying mould components to international packaging and medical customers

• Export-grade packaging to prevent corrosion and transport damage

Related Products Recommendation

• S136 cavity inserts and core inserts

• Precision mold sleeves and bushings

• Nitrided or coated mould components

• Custom ejector pins and guide components

FAQ – Technical & Procurement

Q1: Why is concentricity control important for front mold inserts?
Accurate concentricity ensures proper alignment, reduces uneven wear, and improves mould stability in multi-cavity systems.

Q2: Can oil groove geometry be customized?
Yes. Oil groove size, position, and profile are machined strictly according to customer drawings.

Q3: Are standard sizes available?
No. All front mold inserts are manufactured Built-to-Print.

Q4: Is S136 suitable for humid or corrosive environments?
Yes. S136 stainless steel offers good corrosion resistance for packaging mould applications.

Q5: Can small batch or replacement orders be supported?
Yes. Prototype, small batch, and maintenance replacement orders are supported.

Get a Quote

For pricing, lead time, or technical consultation on S136 precision front mold inserts with oil grooves, please contact Senlan Precision with your drawings or specifications. Our engineering team will provide a detailed technical evaluation and quotation.