Stavax Steel Core Pins | Precision EDM Components for Medical Needles

Product Overview

Senlan Precision supplies Stavax mold core pins manufactured for cosmetic and medical needle injection moulds. Produced strictly to customer drawings (Built-to-Print), these core pins are EDM-processed for complex profiles and fine details, ensuring stable dimensional accuracy, corrosion resistance, and consistent performance in high-precision moulding environments.

Key Features & Advantages

• Material: Stavax ESR stainless mould steel for corrosion resistance

• EDM capability: Suitable for micro features, sharp transitions, and complex geometries

• High precision: Tight control of straightness, concentricity, and critical diameters

• Surface integrity: Controlled EDM finish with optional polishing or secondary grinding

• Process stability: Designed for repeatable performance in multi-cavity moulds

• OEM / Built-to-Print: Manufactured strictly according to customer drawings and tolerances

Applications / Industry Use

• Cosmetic needle and applicator moulds

• Medical needle and micro-tube injection moulds

• Precision packaging components with fine internal features

• High-cavity moulds requiring corrosion-resistant core pins

Mold Structure & Design Description

Stavax mold core pins typically function as internal forming elements within cosmetic or medical injection moulds. EDM machining is applied where conventional cutting cannot achieve required sharp corners, deep cavities, or micro profiles. The corrosion-resistant nature of Stavax steel supports stable processing when moulding medical-grade or cosmetic materials with strict cleanliness requirements.

Manufacturing Capability & CNC Machining

• Equipment: High-precision machining systems from MAKINO (Japan) and HARDINGE (USA)

• Processes: CNC turning, CNC milling, EDM (sinker & wire), precision grinding

• Tolerance capability: Up to ±0.002 mm depending on geometry

• Finishing options: EDM finish, fine grinding, or polishing as specified

• Inspection: Measurement of straightness, concentricity, and EDM feature accuracy

Custom Development / OEM Workflow

1. Drawing review – Evaluation of EDM features, tolerances, and functional zones

2. Material confirmation – Stavax grade selection per application requirements

3. Process planning – EDM and CNC machining strategy definition

4. Precision manufacturing – Controlled production with in-process inspection

5. Final inspection & delivery – Dimensional verification and export packaging

Quality Control & Export Experience

• Incoming material verification and traceability

• In-process dimensional inspection at critical EDM and grinding stages

• Final inspection reports available upon request

• Export experience with medical and cosmetic mould manufacturers worldwide

Related Products

• Medical injection mould core pins and cavity inserts

• Precision EDM mould components

• Corrosion-resistant mould spare parts

• Built-to-print mould tooling accessories

FAQ (Technical & Purchasing)

Q1: Why is EDM used for these core pins?
EDM enables precise machining of complex profiles, sharp corners, and micro features that cannot be achieved reliably with conventional cutting.

Q2: Is Stavax suitable for medical applications?
Yes. Stavax stainless mould steel offers good corrosion resistance and dimensional stability for medical and cosmetic moulding.

Q3: Can you control straightness and concentricity for long core pins?
Yes. Precision grinding and controlled EDM processes are used to maintain tight geometric tolerances.

Q4: Do you accept small batch or prototype orders?
Yes. Prototypes, low-volume, and serial production are all supported under OEM terms.

Get a Quote

Submit your drawings, material requirements, and tolerance specifications to Senlan Precision. Our engineering team will evaluate your EDM-processed Stavax mold core pins and provide a technical quotation for built-to-print injection mould accessories.