Precision Die Steel Core Inserts | Bottle Cap Injection Mold Components

Product Overview

Senlan Precision manufactures high-integrity die steel core inserts specifically for bottle cap injection tooling. Produced strictly according to customer drawings (Built-to-Print), these core inserts are designed to deliver stable molding performance, reliable cavity alignment, and long service life in high-cycle, multi-cavity bottle cap molds.

Key Features & Advantages

• High-integrity die steel materials for strength, wear resistance, and dimensional stability

• Precision machining to ensure accurate fit within bottle cap injection molds

• Stable performance in high-cycle production, suitable for multi-cavity tooling

• Consistent cavity geometry supporting uniform cap quality

• OEM / custom manufacturing strictly according to drawings

• Repeatable quality for long-term supply and spare part replacement

Applications / Industry Use

• Bottle cap injection molds

• Packaging and closure molding systems

• High-output, multi-cavity injection tooling

• Medical and hygiene-related plastic cap components

• Replacement or spare core inserts for existing molds

Mold Structure & Design Description

Core inserts are critical functional components in bottle cap injection molds, directly affecting internal geometry, thread accuracy, and demolding stability. The high-integrity die steel structure ensures resistance to deformation and wear under repeated injection cycles. All dimensions, tolerances, and interface features are manufactured according to customer-provided drawings to ensure precise assembly with existing mold bases and cavities.

Manufacturing Capability & CNC Machining

• Machining equipment: High-precision CNC machining centers from MAKINO (Japan) and HARDINGE (USA)

• Processes: CNC turning, CNC milling, precision grinding, and finishing

• Tolerance control: Tight dimensional management based on drawing requirements

• Surface quality: Machined and finished to match functional and assembly needs

• Production flexibility: Suitable for small batches, repeat orders, and long-term programs

Custom Development / OEM Workflow

1. Drawing review – Material, tolerance, and functional requirement confirmation

2. Process planning – Machining route and quality control planning

3. Precision manufacturing – CNC machining and finishing

4. Inspection – Dimensional and functional verification

5. Delivery – Export-ready packaging and documentation

Quality Control & Export Experience

• Incoming material inspection and traceability

• In-process dimensional checks

• Final inspection against customer drawings

• Stable export experience supporting international mold manufacturers

• Consistent quality for repeat and spare part orders

Related Products

• Threaded core inserts for bottle cap molds

• Mold cavity inserts and spare parts

• Gate bushings and nozzle components

• Built-to-print injection mold components

FAQ (Technical & Purchasing)

Q1: Are these core inserts standard or custom parts?
All core inserts are custom-made according to customer drawings (Built-to-Print).

Q2: What types of bottle cap molds are supported?
They are suitable for single-cavity and multi-cavity bottle cap injection molds.

Q3: Can these inserts be supplied as replacement parts?
Yes. They are commonly supplied as replacement or spare core inserts for existing tooling.

Q4: What tolerances can be achieved?
Tolerances are controlled according to drawing specifications and functional requirements.

Get a Quote

Send your drawings, material specifications, tolerance requirements, and order quantity. Senlan Precision will provide a technical quotation for high-integrity die steel core inserts manufactured precisely for your bottle cap injection tooling.