Custom S136 Mold Cavity Inserts | Precision Tooling for Luxury Cosmetic Molds

Product Overview

S136 High Precision Inserts are engineered plastic injection mould components designed for applications requiring corrosion resistance, dimensional stability, and consistent surface quality. Manufactured by Senlan Precision on a Built-to-Print (OEM) basis, these inserts are produced from S136 stainless mould steel and finished through precision machining and grinding to meet strict tolerance and repeatability requirements in cosmetic packaging moulds.

Key Features & Advantages

• Material: S136 stainless mould steel with good corrosion resistance

• High dimensional accuracy for stable long-term mould operation

• Uniform hardness distribution after controlled heat treatment

• Excellent surface quality, suitable for cosmetic moulding requirements

• Stable performance in multi-cavity moulds

• Fully customized geometry and tolerances based on customer drawings

Applications / Industry Use

• Cosmetic packaging injection moulds

• Plastic caps, closures, and dispensing components

• High-gloss or appearance-critical plastic parts

• Packaging moulds with frequent cleaning or humid environments

• Multi-cavity mould systems requiring consistent insert interchangeability

Mould Structure & Design Description

Mould inserts are functional forming components installed within cavities or cores to define local geometries, fine details, or wear-critical areas. S136 inserts are commonly selected for cosmetic moulds due to their corrosion resistance and stable microstructure.

Insert design parameters—including outer profile, forming geometry, fit tolerances, and surface finish—are strictly manufactured according to customer-provided drawings. Special attention is paid to fit accuracy between insert and mould base to ensure repeatable assembly and easy maintenance.

Manufacturing Capability & CNC Machining

Senlan Precision manufactures S136 inserts using a controlled, engineering-driven process:

• CNC milling and turning for rough machining

• Vacuum heat treatment for dimensional stability

• Precision grinding and finishing for tight tolerances

• Optional polishing based on mould surface requirements

• Full dimensional inspection prior to shipment

High-precision machining is supported by equipment from MAKINO (Japan) and HARDINGE (USA), ensuring repeatable accuracy and consistent surface quality.

Custom Development / OEM Cooperation Process

1. Customer provides drawings, material specifications, and tolerance requirements

2. Engineering review and manufacturability confirmation

3. Process planning for machining, heat treatment, and finishing

4. CNC machining and precision finishing

5. Final inspection and quality verification

6. Export packaging and delivery

All products are supplied strictly as custom OEM / Built-to-Print components.

Quality Control & Export Experience

• ISO-compliant quality management system

• Incoming material verification for S136 steel

• In-process inspection after heat treatment and finishing

• Final dimensional and surface quality inspection

• Long-term export supply experience for international mould manufacturers

Related Products

• Precision mould core pins and sleeves

• Thread core inserts for cap moulds

• Injection mould cavities and inserts

• High-precision ejector pins

• Multi-cavity mould spare parts

FAQ – Technical & Purchasing

Q1: Why is S136 suitable for cosmetic mould inserts?
S136 offers corrosion resistance, stable hardness, and good polishability, making it suitable for appearance-sensitive mould applications.

Q2: Are standard insert sizes available?
No. Senlan Precision focuses exclusively on customized Built-to-Print manufacturing.

Q3: Can surface finish requirements be specified?
Yes. Surface finish, polishing level, and grinding requirements are defined according to customer drawings and mould needs.

Q4: Can these inserts be used in multi-cavity moulds?
Yes. The inserts are designed to ensure dimensional consistency across cavities when used in multi-cavity mould systems.

Request a Quote

To receive a quotation for S136 High Precision Inserts for Plastic Injection Moulds, please provide your drawings or technical specifications.
Senlan Precision supports OEM manufacturing of precision mould components for cosmetic, packaging, and medical injection mould applications.