Automotive parts plastic housing

Core Product: Custom Injection Molds for Automotive Parts Plastic Housing

We specialize in the customized design and manufacturing of high-precision injection molds for automotive parts plastic housing, which are core production equipment for key automotive components such as engine peripheral housings, interior trim panels, electronic control system housings, and chassis plastic parts. Our core function is to provide durable, high-precision injection molds that realize integral forming of automotive plastic housings, ensuring consistent dimensional accuracy, excellent surface finish, and reliable structural performance—critical for automotive parts to meet the industry’s strict requirements for high temperature resistance, impact resistance, waterproofing, and dustproofing. Backed by a professional technical team of 35+ engineers and technicians, we leverage advanced CAD/CAM/CAE software (UG, AutoCAD, SolidWorks) to conduct in-depth simulation of the injection molding process, optimizing mold gate design, cooling system layout, and cavity structure to avoid defects such as shrinkage, warpage, and weld lines in automotive plastic housings. Our molds are tailored to match the material characteristics of automotive plastic parts (e.g., PC/ABS alloy, PA66+GF, PP+EPDM) and mass production needs of the automotive industry, featuring short molding cycles, high yield rates, and long service lives.

Production Process & Supporting Technologies

The production of our injection molds for automotive parts plastic housing follows a strict standardized workflow that complies with automotive industry quality requirements: 1. Demand Analysis & Design (confirm client’s automotive part specifications, material requirements, and production capacity; conduct 3D mold modeling and injection process simulation to verify mold feasibility); 2. Raw Material Preparation (select high-quality mold steel (S136, H13, P20) with excellent wear resistance and thermal stability suitable for automotive mold manufacturing; implement precision cutting via CNC flame cutting equipment); 3. Precision Machining (carry out CNC milling, grinding, EDM, wire cutting, and high-speed machining to ensure the machining accuracy of mold cores and cavities, with key dimensions controlled within ±0.005mm); 4. Assembly & Debugging (skilled technicians perform manual assembly, install hot runner systems (if needed), and conduct multiple rounds of debugging and trial injection to optimize molding parameters and ensure mold stability); 5. Quality Inspection & Delivery (use coordinate measuring machines (CMM) and other precision testing equipment to conduct comprehensive inspection of mold dimensions; conduct trial injection tests to verify product appearance and performance, and provide test reports). In addition to specialized injection molds for automotive plastic housings, we also provide supporting processes such as plastic injection molding, surface treatment (painting, electroplating, laser engraving), and finished automotive part assembly, achieving full-chain service for clients.

Common Problems & Solutions in Automotive Parts Plastic Housing Injection Mold Production

• Problem 1: Warpage and deformation of automotive plastic housings (affecting assembly accuracy) - Solution: Optimize the mold cooling system layout via CAE simulation to ensure uniform cooling of the housing; adjust injection parameters (injection speed, pressure, holding time) to reduce internal stress of the plastic part; select mold steel with stable thermal conductivity and conduct proper heat treatment to ensure mold dimensional stability; add reinforcing ribs in the mold design to enhance the structural rigidity of the product and meet automotive assembly requirements.

• Problem 2: Weld lines on the surface of automotive plastic parts (reducing structural strength) - Solution: Improve the mold gate and runner design to ensure the plastic melt flows smoothly and merges uniformly; increase injection temperature and speed appropriately to enhance melt fluidity; optimize the mold exhaust system to discharge trapped air; select plastic materials with good compatibility and fluidity that meet automotive impact resistance standards.

• Problem 3: Poor high-temperature resistance of molded parts (for engine peripheral housings) - Solution: Collaborate with clients to confirm the high-temperature resistance requirements of automotive parts (usually -40℃~120℃); select mold steel that does not affect the thermal stability of the plastic; optimize the injection molding process to avoid thermal decomposition of plastic materials; conduct strict high-temperature aging tests on trial injection products to ensure compliance with automotive industry standards.

Frequently Asked Questions (FAQ)

• Q1: What types of automotive parts plastic housings can your injection molds produce? - A1: Our molds can produce various automotive plastic housings, including engine sensor housings, automotive dashboard panels, door trim panels, electronic control unit (ECU) housings, and chassis plastic protective covers. We support customization based on client-specific drawings and automotive industry performance requirements (e.g., high temperature resistance, impact resistance, waterproofing).

• Q2: What is the lead time for custom automotive parts plastic housing injection molds? - A2: The lead time varies by mold complexity: sample molds take 7-15 working days, mass production molds take 20-45 working days, and urgent orders can be completed in 5-10 working days with an additional fee. We will provide a detailed production schedule and delivery time after confirming the order, ensuring alignment with your new car model launch schedule.

• Q3: Do you provide quality assurance for your automotive injection molds? - A3: Yes, we provide a 12-month quality guarantee for all injection molds. During the guarantee period, if there are quality problems caused by mold design or manufacturing (e.g., dimensional deviation, mold damage), we will provide free repair or replacement services. We also offer lifelong technical support for mold maintenance and parameter optimization to ensure stable mass production.

• Q4: Can you provide injection molding services for finished automotive plastic parts? - A4: Yes, we have a professional automotive-grade injection molding production line with 25+ high-precision injection molding machines (50-800 tons). We can provide one-stop services from mold design, fabrication to finished product injection molding and assembly, which can effectively reduce your communication costs and shorten the production cycle, while ensuring compliance with automotive industry quality standards.

• Q5: What automotive industry certifications do your molds and finished products have? - A5: Our factory is certified by IATF16949 (automotive industry quality management system) and ISO9001:2015. The plastic materials we use for automotive parts comply with RoHS, REACH, and automotive material safety standards. We can provide relevant certification documents and test reports (e.g., high-temperature resistance test, impact test) according to client requirements.

Product Classification & Technical Specifications

1. Product Classification by Industry, Material & Part Type

2. Technical Specification Parameters

Our Core Competitiveness

• 10+ Years of Automotive Industry Expertise: Founded in 2012, we have focused on injection mold manufacturing for automotive parts plastic housing, serving more than 200 clients from over 40 countries, including leading auto parts manufacturers in Europe, North America, and Japan. Our rich experience enables us to accurately grasp the strict quality requirements and technical standards of the automotive industry.

• Professional Technical Team: A team of 100+ engineers and technicians with an average of 8+ years of industry experience, proficient in the design and optimization of automotive injection molds. They are skilled in handling technical difficulties such as high-precision automotive electronic part molding, low VOC interior part processing, and high-temperature resistant engine part molding.

• Strong Production Capacity: Our factory covers an area of 12,000 square meters, equipped with 100+ sets of advanced production and testing equipment (CNC milling machines, EDM machines, wire cutting machines, CMM, automotive-grade injection molding machines, etc.), with an annual production capacity of 200+ sets of injection molds.

• Strict Quality Management System: Certified by IATF16949 and ISO9001:2015, we implement full-process quality control from raw material incoming inspection to finished product delivery. We have established a professional quality inspection team and equipped with complete testing equipment (high-temperature aging test chamber, impact tester, etc.) to ensure product stability and compliance with automotive industry standards.

• Improved Supply Chain: Cooperate with reliable domestic raw material suppliers to ensure stable supply and consistent quality of automotive-grade mold steel and plastic materials; integrate upstream and downstream resources to realize cost optimization and timely delivery, effectively supporting clients' mass production plans.

• Global Service Capabilities: Cooperate with well-known international logistics companies (Maersk, COSCO) to provide efficient and safe global shipping services, leveraging the geographical advantage of Qingdao Port to shorten delivery time. We offer 24-hour online technical support and a 12-month quality guarantee to solve after-sales problems promptly for clients around the world.

Why Choose Qingdao Xinlongji?

1. Professional Customization for Automotive Industry: We focus on the R&D and manufacturing of injection molds for automotive parts plastic housing, with in-depth understanding of the performance requirements and industry standards of the automotive industry (e.g., IATF16949, high temperature resistance, low VOC), ensuring that our solutions are highly compatible with client needs for new car model development.

2. One-Stop Integrated Service: From mold design, fabrication to finished product injection molding and assembly, we provide a full range of automotive-grade services, helping you simplify the supply chain and reduce communication and management costs.

3. Proven Technical Strength: Our professional technical team and advanced simulation technology can effectively solve various complex problems in automotive plastic housing injection molding, ensuring product quality and production efficiency, and supporting your mass production needs.

4. Reliable Quality Assurance: IATF16949 certification and full-process quality control ensure that our products comply with global automotive industry standards, minimizing your production risks and helping you enter the international automotive supply chain smoothly.

5. Efficient Global Support: We have rich experience in international automotive trade and perfect global logistics channels, ensuring timely delivery of products to your designated location. Our 24-hour technical support team provides professional after-sales services to solve your worries during the production process.

Qingdao Xinlongji Metal Manufacturing Co., Ltd. is committed to becoming a trusted partner in the global automotive parts plastic housing injection mold industry. We look forward to cooperating with you to create greater value for the automotive manufacturing industry! For more information about our products and services, please feel free to contact us.