BMC High Temperature Mold Injection Parts Multi Cavity For Automotive

ALLWIN MOULD is a specialized manufacturer of high-temperature resistant injection moulds designed specifically for BMC (Bulk Molding Compound) processing. BMC is a high-performance thermoset composite requiring extreme heat stability (150–180°C) and fast curing cycles. Our moulds are engineered to deliver superior dimensional accuracy, extreme durability, and production efficiency for global electrical and automotive OEMs.

Product Overview

This is a multi-cavity (8-cavity shown) BMC high-temperature injection mould, purpose-built for mass manufacturing precision electrical components (such as terminal blocks, sensor housings, and insulation parts). The mould features a heavy-duty, heat-consistent design to ensure perfect curing of BMC material, eliminating common defects such as bubbles, shrinkage, and delamination.

Key Technical Specifications & Mould Features

✅ BMC-Specific High-Temperature Design

• Heat Resistance: Manufactured to withstand continuous operating temperatures of 180°C+, ensuring optimal BMC curing without mould deformation.
• Thermal Stability: Precision-machined cooling/heating channels to maintain uniform temperature distribution, reducing cycle time by 25% vs. standard moulds.
• High-Pressure Integrity: Reinforced mould base to handle the high injection pressure (1500–2000 psi) required for dense BMC composites.

✅ Industrial-Grade Mould Construction

• Mould Base Material: P20 / 718H pre-hardened steel for stability at high temperatures.
• Cavity/Core Inserts: H13 / S136(H) hardened steel with Nitride/Chrome plating for superior wear resistance and heat dissipation.
• Standard Compliance: Mould base conforms to LKM / HASCO / DME international standards, ensuring global interchangeability.
• Mould Life: 300,000 – 500,000+ shots (depending on application), built for long-term heavy-duty production.

✅ Precision & Quality Control

• Tolerance Control: Maintains tight dimensional tolerances of ±0.01mm for critical electrical components.
• Surface Finish: Precision ground & polished (Ra 0.8μm standard), ensuring clean part ejection and superior surface quality.
• Positioning System: Heavy-duty guide pillars/bushes (SUJ2 material) with precision interlocks to prevent mould shifting under high pressure and heat.

✅ Material Compatibility

• Primary Material: BMC (Bulk Molding Compound) / DMC / EMI-Shielding Composites.
• Secondary Alloys: Compatible with modified PBT, PA66+GF, and other high-heat engineering plastics.
• Compliance: Fully compliant with RoHS, UL, and REACH standards, meeting electrical safety regulations.

Core Competitive Advantages

✅ Specialized BMC Expertise

We possess deep experience in two-shot (2K) and single-shot BMC moulding, ensuring perfect adhesion between rigid core materials and soft touch TPE/TPR overmolds in harsh environments.

✅ Full In-House Manufacturing

Complete set of precision machining centers, EDM, and high-temp testing labs, ensuring end-to-end quality control from design to shipment.

✅ Cost-Effective & Efficient

Streamlined workflows reduce lead times to 25–35 working days while maintaining factory-direct pricing for global OEMs.

Application Scope

Our BMC high-temperature moulds are widely used for:

• Electrical Components: Terminal blocks, switch bases, sensor housings, and connector insulators.
• Automotive Parts: Engine bay components, thermal management covers, and structural brackets.
• Industrial Electronics: Insulation frames for power tools and measuring instruments.