Bi-material injection molding

multi-componentfor LDPEpolypropylene

Introduction
Large injection molded parts are manufactured by melting thermoplastic material and injecting it under pressure into a mold to produce high-volume, repeatable components. This process is suited to automotive applications requiring dimensional accuracy, consistent surface finish and tight tolerances.

Product details

• Name: Large Plastic Injection Molded Parts
• Mold Cavity: 1
• Application: Automotive application
• Delivery: 100 days

Technical table

• Mould core: P20, NAK80, SKD11, S316, S50C, S45C, 718H, 718 or customer-appointed
• Mould base: LKM, HASCO, DME or per customer requirement
• Type of mold: 3-plate mold, 2-plate mold
• Cavity options: Single/Multi (1*1, 1+1, 1*2, 1+1+1, etc.)
• Gate types: Fan gate, Sub gate, Pin point gate, Valve gate
• Ejection system: Stripper plate, Lifter, Push bar, Ejection pin, etc.
• Runner: Hot or cold runner
• Plastic material: HDPE, PP, nylon, PEEK, LDPE, ABS, PE, PTFE, PEI, etc.
• Mould life: 300,000–1,000,000 shots
• Lead time for mold: 15–35 days after deposit received
• Specification: According to final 3D drawing
• Packaging: Film covering for anti-rust and wooden case packing

Advantages

• Cost-effectiveness: Unit cost decreases as production volume increases.
• High production rate: Efficient for large batch manufacturing.
• Design flexibility: Supports complex geometries and tight tolerances.
• Material options: Wide choice of engineering plastics and colors.
• Repeatability: Consistent production of identical parts.
• Automation: Compatible with automated processes to reduce labor.
• Dimensional accuracy: Excellent control over critical dimensions.
• Surface finish: Good surface quality suitable for visible parts.

Production method

• Samples / Drawing & Requirements: Review and validate project requirements and supplied drawings or samples.
• Mold Design: Develop and refine mold structure in collaboration with the customer.
• Material Purchase: Procure specified steels and tooling components.
• Mold Assembly: Precisely assemble all mold components.
• Mold Inspection: Implement strict quality control during mold manufacture.
• Mold Testing: Perform trial runs, measure samples and record injection parameters.
• Customer Confirmation: Obtain approval before full production.
• Finishing Touches: Final adjustments and surface treatments prior to shipment.
• Comprehensive Services: Additional mold types available (blow molds, silicone molds, die-casting molds).

Production advantages

• Machine: High-precision injection machines and tooling equipment.
• Material: Materials supplied with certification to meet customer requirements.
• Method: Quality control per IATF 16949:2016 & ISO 13485:2015; defect and reliability analysis applied.
• Manpower: Experienced tooling engineers and technicians (high percentage with 8+ years experience).

Product recommendations

• Car grills: Large exterior trims and protective grills.
• 2K mold: Two-shot molds for multi-material or multi-color parts.
• 2K injection molding: Two-shot injection process for bonded materials.
• Plastic molding: Standard molding for structural and aesthetic components.
• Complex injection molding: For intricate shapes and assemblies.
• Lens injection molding: Optical components and lenses.
• Bumper injection molding: Exterior bumper covers and structural elements.

Technical specifications

• Name: Large Plastic Injection Molded Parts
• Mold Cavity: 1
• Application: Automotive application
• Delivery: 100 days
• Mould core materials: P20, NAK80, SKD11, S316, S50C, S45C, 718H, 718 or customer-appointed
• Mould base options: LKM, HASCO, DME or per customer requirement
• Type of mold: 3-plate mold; 2-plate mold
• Cavity options: Single/Multi (1*1, 1+1, 1*2, 1+1+1, etc.)
• Gate types: Fan gate, Sub gate, Pin point gate, Valve gate
• Ejection system: Stripper plate, Lifter, Push bar, Ejection pin, etc.
• Runner: Hot or cold runner
• Compatible plastics: HDPE, PP, nylon, PEEK, LDPE, ABS, PE, PTFE, PEI, etc.
• Mould life expectancy: 300,000–1,000,000 shots
• Lead time for mold: 15–35 days after deposit received
• Specification: According to final 3D drawing
• Packaging: Film covering for anti-rust and wooden case packing