Precision Threaded Core Pins | Perpendicularity 0.005mm ISO 9001 Mold Parts

Product Overview

ISO9001 Precision Mould Parts Screw Core Pins are high-accuracy mould components designed for threaded plastic parts where strict axial alignment is required. Manufactured by Senlan Precision on a Built-to-Print (OEM) basis, these screw core pins achieve verticality within 0.005 mm, ensuring stable demoulding, consistent thread quality, and long service life in multi-cavity injection mould applications.

Key Features & Advantages

• Verticality ≤ 0.005 mm for precise thread forming

• Designed for screw and threaded core applications

• Stable performance in multi-cavity moulds

• Optimized wear resistance and dimensional stability

• Suitable for high-cycle production environments

• Fully customized materials, tolerances, and geometry (Built-to-Print)

Applications / Industry Use

• Plastic bottle cap and closure moulds

• Medical packaging and consumables moulds

• Threaded components for dispensing and sealing systems

• High-precision injection moulds requiring strict axial control

• Packaging moulds with unscrewing or threaded mechanisms

Mould Structure & Design Description

Screw core pins are critical components installed in the core side of injection moulds to form internal or external threads. Verticality and straightness directly affect thread accuracy, demoulding stability, and mould life. These core pins are engineered to maintain precise axial alignment during rotation or linear movement, minimizing uneven wear and preventing thread deformation across all cavities.

Material selection, heat treatment, and surface finish are defined according to mould design, resin type, and production volume.

Manufacturing Capability & CNC Machining

Senlan Precision manufactures screw core pins using high-precision CNC processes to ensure repeatable accuracy and consistency.

Manufacturing capabilities include:

• Precision CNC turning and milling

• High-accuracy grinding for straightness and verticality

• Controlled heat treatment for hardness and durability

• Fine surface finishing for smooth thread release

• Comprehensive dimensional inspection

Production is supported by advanced equipment from MAKINO (Japan) and HARDINGE (USA), enabling reliable tolerance control for critical mould components.

Custom Development / OEM Cooperation Process

1. Customer submits drawings, specifications, or samples

2. Engineering review focused on verticality and thread requirements

3. Confirmation of material, tolerance, and surface finish

4. Precision CNC machining and heat treatment

5. In-process and final quality inspection

6. Export packaging and shipment

All projects are handled strictly as OEM / Built-to-Print components.

Quality Control & Export Experience

• ISO9001 quality management system

• Raw material verification and traceability

• In-process inspection for verticality and concentricity

• Final dimensional and visual inspection

• Stable export supply for international mould manufacturers

Related Products

• Precision mould core pins and sleeves

• Thread core inserts for multi-cavity moulds

• Injection mould cavities and inserts

• High-precision ejector pins

• Custom mould spare parts

FAQ – Technical & Purchasing

Q1: How is verticality within 0.005 mm ensured?
Verticality is controlled through precision grinding, strict fixturing, and in-process inspection during manufacturing.

Q2: Are these screw core pins suitable for multi-cavity moulds?
Yes. They are commonly used in high-cavity moulds where consistent thread quality across all cavities is required.

Q3: Do you offer standard sizes?
No. Senlan Precision focuses on custom Built-to-Print manufacturing according to customer drawings.

Q4: Can material and surface treatment be customized?
Yes. Materials, hardness, and surface finish are defined based on mould design and production requirements.

Request a Quote

Please provide your drawings or technical specifications to receive a quotation for ISO9001 Precision Mould Parts Screw Core Pins with Verticality within 0.005 mm.
Senlan Precision supports OEM, high-accuracy mould components for packaging, medical, and multi-cavity injection mould applications.