Custom Stavax Threaded Inserts | Precision Threaded Cores for Molds

Product Overview

Senlan Precision supplies non-standard Stavax threaded inserts and threaded cores for plastic injection moulds, manufactured strictly to customer drawings (Built-to-Print). Using corrosion-resistant Stavax mould steel and precision machining, these components ensure accurate thread forming, stable demoulding, and long service life in multi-cavity mould applications.

Key Features & Advantages

• Material: Stavax (S136 equivalent) stainless mould steel

• Thread accuracy: Precise thread profile, pitch, and lead control

• Corrosion resistance: Suitable for humid, medical, and packaging environments

• Surface finish options: Polished or textured per drawing requirements

• Dimensional stability: Maintains tolerance under continuous moulding cycles

• OEM / Built-to-Print: Fully customized non-standard designs

Applications / Industry Use

• Bottle caps and closures with internal or external threads

• Packaging moulds requiring high cavity consistency

• Medical plastic components with threaded features

• Precision moulds where corrosion resistance is critical

Mold Structure & Design Description

Threaded inserts and threaded cores are responsible for forming and releasing threaded features during injection moulding. Stavax steel provides a clean microstructure and excellent polishability, enabling sharp, consistent thread geometry. Design considerations include thread depth, draft angle, demoulding method (unscrewing or collapsible systems), and interface fit with surrounding mould components.

Manufacturing Capability & CNC Machining

• Equipment: High-precision CNC machines from MAKINO (Japan) and HARDINGE (USA)

• Processes: CNC turning, milling, thread machining, precision grinding, polishing

• Tolerance capability: Typically ±0.002–0.005 mm on critical thread dimensions

• Heat treatment: Controlled hardening per specification

• Inspection: Thread gauges, concentricity, runout, and surface finish checks

Custom Development / OEM Workflow

1. Drawing & requirement review – Thread standard, tolerance, demoulding method

2. Material confirmation – Stavax grade and hardness range

3. Process planning – Machining and inspection strategy

4. Precision manufacturing – CNC production with in-process control

5. Final inspection & delivery – Measurement records and export-ready packaging

Quality Control & Export Experience

• Incoming material verification and traceability

• In-process dimensional and thread inspection

• Final QC with documented measurement reports

• Stable export experience serving packaging and medical mould manufacturers

Related Products

• Stavax / S136 core pins and cavity inserts

• Threaded cores for collapsible or unscrewing systems

• Gate bushings and nozzle tips

• Built-to-print mould spare parts for multi-cavity moulds

FAQ (Technical & Purchasing)

Q1: Are these threaded inserts standard parts?
No. All threaded inserts and cores are manufactured as non-standard components according to customer drawings.

Q2: Why choose Stavax material for threaded cores?
Stavax offers excellent corrosion resistance, good hardness stability, and high polishability, ideal for packaging and medical moulds.

Q3: Can you match existing mould threads for replacement parts?
Yes. We can manufacture replacement threaded inserts by drawing or sample measurement.

Q4: Do you support low-volume or trial orders?
Yes. Prototype, small-batch, and serial production are all supported.

Get a Quote

Provide your drawings, thread specifications, material requirements, and tolerance details. Senlan Precision will review your project and supply a technical quotation for non-standard Stavax threaded inserts and threaded cores for injection mould applications.