Nitrided SKD61 Straight Core Pins for Medical Device Injection Molding

Product Overview

SKD61 die steel nitriding straight core pins are precision injection mold components designed for medical tooling applications requiring high wear resistance, dimensional stability, and extended service life. Through controlled heat treatment and surface nitriding, these core pins provide improved hardness and reduced friction while maintaining core toughness. Senlan Precision manufactures all core pins strictly according to customer drawings for medical and packaging mold systems.
(Approx. 70 words)

Key Features & Technical Advantages

• SKD61 hot work die steel with stable mechanical properties

• Nitriding surface treatment for enhanced wear resistance

• Straight core pin geometry with high dimensional consistency

• Improved surface hardness while maintaining core toughness

• Suitable for long-cycle and high-repeat injection molding

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

Applications & Industry Use

• Medical plastic injection molds

• Syringe and medical consumable tooling

• Precision bottle and closure mold components

• High-cavity injection mold core systems

• Mold tooling requiring extended pin life and stability

Mold Structure & Design Considerations

Straight core pins made from SKD61 are commonly used in medical mold tooling where dimensional accuracy and durability are critical. The nitriding layer enhances surface hardness and abrasion resistance, reducing wear during repeated molding cycles. All pin diameters, lengths, tolerances, and chamfer structures are manufactured strictly according to supplied drawings to ensure precise fit within the mold assembly.

Manufacturing Capability & CNC Machining

Senlan Precision operates advanced CNC machining and finishing equipment, including high-precision machines from MAKINO (Japan) and HARDINGE (USA).

Manufacturing capabilities include:

• CNC turning and milling for core pin blanks

• Precision grinding for diameter and straightness control

• Heat treatment and controlled nitriding processes

• Typical machining accuracy up to ±0.002 mm (design dependent)

• Consistent surface finish and batch repeatability

Custom Development & OEM Cooperation

We provide OEM / built-to-print manufacturing services only.

Our standard cooperation process:

1. Drawing or 3D model submission

2. Technical review and manufacturability confirmation

3. Material and heat treatment specification validation

4. Precision machining and surface treatment

5. Final inspection and delivery

No product redesign or branding is involved unless requested.

Quality Control & Export Experience

• Incoming SKD61 material verification

• In-process dimensional inspection

• Post-nitriding surface and size verification

• Final inspection using calibrated measuring equipment

• Stable export experience supporting overseas mold manufacturers

Related Products

• Nitrided core pins for medical injection molds

• SKD61 ejector pins and sleeves

• Precision mold core inserts for packaging molds

• High-hardness tooling pins for multi-cavity molds

Technical FAQ

Q1: Is this core pin manufactured strictly according to drawings?
Yes. All parts are produced on a built-to-print basis only.

Q2: What benefits does nitriding provide?
Nitriding improves surface hardness and wear resistance while maintaining internal toughness.

Q3: What tolerance levels can be achieved?
Typical tolerances range from ±0.002 mm to ±0.01 mm, depending on pin size and design.

Q4: Is this suitable for medical mold applications?
Yes. SKD61 with nitriding is commonly used in medical and precision injection tooling.

Request a Quote

For quotation and lead time, please provide your technical drawings and requirements.
Our engineering team will review your project and respond with a manufacturing-based offer.