DAC (H13) Cooling Core Pins | Ra 0.6 Surface Finish Injection Mold Parts

Product Overview

DAC Material Cooling Core Pins are precision injection mould components designed for efficient heat dissipation and stable moulding performance. Manufactured by Senlan Precision on a custom / OEM / Built-to-Print basis, these core pins feature controlled internal cooling structures and a polished surface roughness up to Ra 0.6, supporting dimensional stability, surface quality, and long service life in high-cycle injection moulds.

Key Features & Advantages

• DAC tool steel with balanced toughness and thermal performance

• Integrated cooling design to improve mould temperature control

• Surface polish up to Ra 0.6 for reduced friction and material adhesion

• Stable dimensional accuracy under repeated thermal cycling

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

• Manufactured strictly according to customer drawings (Built-to-Print)

Applications / Industry Use

• Bottle and packaging injection moulds

• Cap, closure, and preform mould systems

• Medical injection mould components

• Moulds requiring efficient internal cooling

• High-precision, high-cycle production tooling

Mould Structure & Design Description

Cooling core pins are critical functional elements within injection moulds, directly influencing cycle time and product consistency. The DAC material provides reliable hardness and thermal stability, while precision-machined cooling channels enhance heat transfer efficiency. Controlled polishing to Ra 0.6 ensures smooth demoulding and consistent surface interaction with molten plastic.

Manufacturing Capability & CNC Machining

Senlan Precision ensures accuracy and repeatability through advanced machining processes:

• CNC turning for concentric core pin geometry

• CNC milling for cooling and functional features

• Deep-hole drilling for internal cooling channels

• Precision grinding for tolerance-critical surfaces

• Controlled polishing to specified Ra values

Manufacturing is supported by high-end equipment, including Japanese MAKINO and American HARDINGE machines.

Custom Development / OEM Cooperation Process

1. Review of customer drawings and technical specifications

2. Material confirmation and cooling design validation

3. CNC machining and in-process inspection

4. Precision grinding and surface polishing

5. Final dimensional and surface quality inspection

6. Export packaging and delivery

All components are supplied as custom OEM parts.

Quality Control & Export Experience

• ISO-based quality management system

• Raw material traceability and inspection

• In-process dimensional control

• Surface roughness and concentricity verification

• Final inspection prior to shipment

• Extensive experience supplying mould components to international customers

Related Products

• Precision mould core pins and inserts

• Injection mould cavity inserts

• Cooling sleeves and bushings

• Multi-cavity mould wear parts

• Custom CNC machined injection mould components

FAQ – Technical & Purchasing

Q1: What is the advantage of DAC material for cooling core pins?
DAC steel offers good toughness, wear resistance, and thermal stability, making it suitable for core pins with internal cooling channels.

Q2: Can Ra 0.6 polishing be consistently achieved?
Yes. Polishing levels are controlled and verified according to drawing requirements.

Q3: Do you support custom cooling channel designs?
Yes. Cooling structures are fully customized based on customer drawings or technical requirements.

Q4: Are standard sizes available?
No. All cooling core pins are manufactured strictly on a Built-to-Print OEM basis.

Request a Quote

For pricing, lead time, or technical discussion regarding DAC Material Cooling Core Pin Injection Molding Components, please provide your drawings or specifications.
Senlan Precision specializes in OEM manufacturing of high-precision injection mould components for packaging and medical applications.