Precision Hardened Mold Components | 48-52 HRC Steel Parts with Mirror Polish

Product Overview

Fabrication good polish plastic mould parts with controlled hardness are widely used in high-cycle injection moulds where surface quality, wear resistance, and service life are critical. Senlan Precision manufactures custom mould components with hardness in the range of 48–52 HRC, ensuring stable performance, long lifespan, and consistent dimensional accuracy. All parts are produced strictly according to customer drawings and technical specifications.

Key Features & Advantages

• Controlled hardness range of 48–52 HRC for balanced wear resistance

• Good polishing performance suitable for visible mould surfaces

• Stable dimensional accuracy after heat treatment

• Long service life in high-volume moulding applications

• Precision CNC machining for tight tolerances

• Suitable for multi-cavity and high-output mould systems

• Custom / OEM manufacturing based on Built-to-Print requirements

Applications / Industry Use

• Plastic bottle and closure injection moulds

• Packaging moulds requiring polished cavity or core surfaces

• Multi-cavity mould components with long production cycles

• Precision mould inserts, cores, and functional mould parts

• Injection mould tooling for packaging and medical-related plastic parts

Mould Structure & Design Description

In injection mould systems, polished mould parts with controlled hardness play a key role in maintaining part appearance and mould durability. A hardness range of 48–52 HRC allows mould components to achieve sufficient wear resistance while maintaining good machinability and polishing quality. Senlan Precision manufactures these parts according to customer-provided designs to ensure proper fit, alignment, and performance within the complete mould structure.

Manufacturing Capability & CNC Machining

Senlan Precision operates advanced CNC machining and finishing equipment to meet the precision and surface requirements of injection mould components.

Manufacturing capabilities include:

• High-precision CNC milling and turning

• Precision grinding and surface finishing

• Controlled heat treatment coordination

• EDM machining for complex internal features

• Full dimensional and hardness inspection

Key finishing equipment includes Japanese MAKINO and American HARDINGE CNC machines, ensuring consistency and repeatability for mould parts requiring fine surface quality.

Custom Development / OEM Cooperation Process

1. Customer submits drawings or 3D models

2. Engineering review of material, hardness, and tolerance requirements

3. Machining and heat treatment process planning

4. In-process inspection during critical stages

5. Final inspection and verification

6. Secure packaging and export shipment

All products are manufactured under a Built-to-Print OEM / ODM cooperation model.

Quality Control & Export Experience

• Incoming material inspection

• Process-based quality monitoring

• Dimensional inspection using calibrated measuring equipment

• Hardness verification after heat treatment

• Experience supplying precision mould parts to overseas customers

Quality control follows standardized industrial manufacturing procedures to ensure traceability and consistency.

Related Products

• Precision mould cores and cavity inserts

• Thread cores for plastic cap moulds

• Multi-cavity mould components

• High-polish mould inserts

• Custom CNC machined mould wear parts

FAQ – Technical & Purchasing

Q1: Are these mould parts standard products?
No. All parts are custom-manufactured strictly according to customer drawings.

Q2: Why is 48–52 HRC commonly used for mould parts?
This hardness range provides a balance between wear resistance, polishing capability, and dimensional stability.

Q3: Can surface polishing level be specified?
Yes. Polishing requirements can be defined according to drawing or technical notes.

Q4: Do you provide mould design services?
No. Senlan Precision focuses on precision manufacturing based on customer-provided designs.

Request a Quote

To receive a technical quotation, please provide drawings, material specifications, hardness requirements, and application details.
Our engineering team will review your request and respond accordingly.