S136 Stainless Steel Cavity Inserts | Precision Cosmetic Mold Assembly

Product Overview

S316 mold cavity insert assemblies are precision plastic injection mold components designed for applications requiring high corrosion resistance, dimensional stability, and surface integrity. Manufactured from stainless steel S316, these cavity inserts are suitable for complex cosmetic mold structures where material compatibility, assembly accuracy, and long-term durability are critical.

Key Features & Technical Advantages

• S316 stainless steel for enhanced corrosion and chemical resistance

• Stable dimensional performance under continuous injection cycles

• Precision-machined cavity surfaces to support consistent part forming

• Suitable for insert assembly structures in multi-cavity molds

• Controlled tolerances to ensure reliable cavity alignment

• Fully customized production based on customer drawings (Built-to-Print)

Applications & Industry Use

• Plastic cosmetic injection molds

• Packaging container and closure molds

• Multi-cavity molds for surface-sensitive plastic parts

• Injection molds operating in moisture or corrosive environments

Mold Structure & Design Description

The cavity insert assembly is installed within the mold base as a functional forming unit. Its geometry, surface finish, and assembly accuracy directly influence part appearance, dimensional consistency, and mold service life. Insert designs are customized according to mold layout, cavity configuration, and assembly method defined by customer technical drawings.

Manufacturing Capability & CNC Machining Capacity

Senlan Precision produces S316 cavity insert assemblies using controlled precision machining processes:

• High-precision CNC milling and turning from MAKINO

• Precision CNC turning systems from HARDINGE

• EDM and wire cutting for complex cavity geometries

• Fine finishing and surface control for assembly accuracy

All machining operations follow strict drawing specifications and tolerance requirements.

Custom Development & OEM Cooperation Process

1. Customer drawing and technical requirement review

2. Material confirmation and manufacturing feasibility analysis

3. CNC machining, EDM, and finishing processes

4. Dimensional inspection and assembly verification

5. Final cleaning, marking, and export-standard packaging

All parts are supplied under OEM / Built-to-Print manufacturing cooperation.

Quality Control & Export Experience

• Incoming raw material inspection and traceability

• In-process dimensional control during machining

• Final inspection based on customer drawings and tolerance standards

• Stable export experience supporting international mold manufacturers

• Inspection reports available upon request

Related Products

• Mold cavity inserts and core inserts

• Stainless steel mold components

• Multi-cavity mold insert assemblies

• Custom non-standard injection mold spare parts

FAQ (Technical & Purchasing)

Q1: Why is S316 used for mold cavity inserts?
A: S316 provides improved corrosion resistance and dimensional stability for demanding injection molding environments.

Q2: Are these cavity inserts supplied as complete assemblies?
A: Yes, inserts can be supplied as individual components or assembled units according to drawings.

Q3: Can these parts be used in high-cavity molds?
A: Yes, they are suitable for multi-cavity and high-cycle injection mold systems.

Q4: Do you support replacement or repeat orders?
A: Yes, repeat production and spare part support are available based on existing drawings.

Get a Quote

Please provide your drawings or technical specifications to Senlan Precision for a quotation on S316 plastic mold cavity insert assemblies for injection molding.