Cosmetics & Disinfectant Barrel Pump Injection Mold Base

Precision Mold Components for High-Cavity Packaging Tooling

Product Overview

Our precision injection mold base and mold components are engineered for cosmetics pump, disinfectant barrel pump, and liquid dispenser applications.

These components are designed for:

• High-cavity pump molds

• Thin-wall cosmetic packaging molds

• Disinfectant pump head molds

• Liquid dispensing system molds

Manufactured strictly according to customer drawings, our mold bases and precision inserts ensure structural stability, accurate alignment, and long service life under high-cycle production.

Typical Applications

This mold system is widely used in:

• Lotion pump molds

• Sanitizer pump molds

• Spray pump molds

• Cosmetic bottle dispenser molds

• Pharmaceutical liquid packaging molds

Especially suitable for multi-cavity production lines requiring dimensional consistency and repeatable performance.

Material Options

Common mold base and insert materials include:

• 8407

• 1.2344 / H13

• SKD61

• DAC

• S136

• SUS420 / STAVAX

Material selection depends on:

• Cycle time

• Resin type (PP, PE, PET, ABS etc.)

• Expected mold life

• Production environment

Typical hardness range:
48–52 HRC (customizable upon request)

Engineering Focus

Pump molds require precise alignment between:

• Core and cavity

• Sliding mechanisms

• Thread forming areas

• Valve seat structures

Performance depends on tight tolerance control and structural rigidity.

1) Dimensional Precision

• Size tolerance: up to ±0.002 mm

• Axiality: ≤ 0.005 mm

• Verticality: ≤ 0.005 mm

• Surface roughness: Ra 0.6 or finer

Critical features are precision-ground after heat treatment to maintain assembly accuracy.

2) Multi-Cavity Consistency

For 8, 16, 24+ cavity molds:

• Core and cavity inserts are batch-machined

• Key features are ground under controlled process conditions

• Uniform dimensions reduce flashing and leakage risk

Well-matched cavity construction ensures stable pump sealing performance.

3) Surface Finish & Sealing Areas

Pump molds require:

• Smooth sealing surfaces

• Accurate thread forming areas

• Controlled polish quality

Polished surfaces improve demolding and reduce friction during repeated cycles.

Manufacturing Capability

Processing includes:

• High-precision CNC machining

• EDM and wire EDM

• OD / ID grinding

• Surface grinding

• Final polishing

Advanced equipment ensures repeatability and dimensional stability.

Processing Technologies

• CNC machining

• EDM

• W-EDM

• Precision grinding

• Surface polishing

All processes are controlled to maintain tolerance stability and structural strength.

Quality Control

Each mold component undergoes:

• Material verification

• Dimensional inspection

• Hardness testing

• Surface roughness measurement

• Final inspection before shipment

Inspection reports available upon request.

OEM / Custom Manufacturing

We provide:

• Built-to-Print manufacturing

• Custom dimensions and materials

• Full mold base production

• Replacement mold components

• Small batch and mass production

Compatible with international standards including MISUMI, HASCO, DME, and PUNCH.

Related Products

To complete pump mold systems, we also supply:

• Precision core pins

• Mold cavity inserts

• Thread-forming inserts

• Slide core units

• Ejector pins and sleeves

• Multi-cavity packaging mold components

All components are produced to ensure compatibility within your pump mold assembly.

Why Choose Our Manufacturing Services

• Specialized in precision mold components

• Experienced in packaging and cosmetic mold systems

• Advanced machining and inspection equipment

• Stable OEM supply capability

• Reliable on-time delivery

Request a Technical Quotation

To receive a quotation, please provide:

• 2D / 3D drawings

• Material requirements

• Cavity quantity

• Surface finish requirements

• Target mold life

• Order quantity and timeline

Our engineering team will review your specifications and provide a technical manufacturing proposal.