Precision Aluminum & Plastic Parts Manufacturing
Custom die casting, CNC turning, injection molding, and extrusion solutions for automotive, robotics, home appliances, lighting, power tools, and more. Trusted by global OEMs since 2005.
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Custom die casting, CNC turning, injection molding, and extrusion solutions for automotive, robotics, home appliances, lighting, power tools, and more. Trusted by global OEMs since 2005.
Ningbo Dingguan (HongXin Precision) Machinery Co., Ltd. is a leading manufacturer located in Beilun, Ningbo City, China — strategically positioned just 40 minutes from Ningbo Airport and 15 minutes from the largest seaport in China. With over 18 years of experience, we specialize in the design and production of precision aluminum alloy and zinc alloy die casting parts, CNC turned components, plastic injection parts, and aluminum extrusion profiles.
Our facility supports industries such as automotive, electric motors, home appliances, lighting, gas meters, robotics, agricultural equipment, cleaning systems, motorcycles, power tools, and telecommunications. We combine advanced tooling capabilities with strict quality control to deliver reliable, high-performance components worldwide.
From concept to production, we offer end-to-end manufacturing of precision components tailored to your specifications. Explore our core product categories and best-selling parts.
High-strength, lightweight components ideal for automotive, motors, and industrial applications. Available in A380, ADC12, and custom alloys.
Precision-machined shafts, bushings, and connectors with tight tolerances (±0.01mm). Materials include aluminum, brass, copper, and steel.
Durable, complex geometry parts using ABS, PC, PP, PA6, and other engineering plastics. Ideal for housings, enclosures, and connectors.
Custom profiles for structural frames, heat sinks, battery enclosures, and electrical housings. Anodizing, powder coating, and CNC finishing available.
Precision-engineered aluminum housings for electric motors. Designed for optimal heat dissipation, EMI shielding, and mechanical durability.
Lightweight, corrosion-resistant battery enclosures for EVs, solar systems, and portable power. IP67 sealing and thermal management options.
High-precision plates for fluid control systems. CNC machined from extruded aluminum with tight flatness and sealing requirements.
Mounting and distribution plates for control panels, switchgear, and industrial electronics. Custom cutouts, threading, and surface finishes.
High-conductivity copper components for electrical contacts, connectors, and grounding systems. CNC machined to exact tolerances.
Lightweight yet rigid parts for robotic arms, joints, and frames. Designed for high cycle life and precision motion control.
Corrosion-resistant, durable components for tractors, harvesters, and irrigation systems. Designed for harsh outdoor environments.
EMI-shielded, weatherproof enclosures for 5G, routers, and signal boosters. Custom ventilation, mounting, and grounding options.
We combine advanced manufacturing technology with rigorous quality control to deliver reliable, high-performance components on time and within budget.
Proven track record in precision manufacturing and global OEM partnerships.
Advanced CNC and die casting ensure ultra-precise dimensional accuracy.
Comprehensive quality control from raw material to final shipment.
Fast logistics and global shipping via Ningbo, China’s largest port.
Everything you need to know about working with Dingguan.
We specialize in aluminum alloys (ADC12, A380), zinc alloys, copper, brass, and engineering plastics like ABS, PC, PP, and PA6.
Yes. We support prototyping, low-volume, and high-volume production with scalable tooling and automation.
Absolutely. Our engineering team provides DFM analysis, mold design, and rapid tooling development to accelerate your time to market.
Anodizing, powder coating, painting, plating, brushing, polishing, and custom textures.
Automotive, robotics, home appliances, lighting, power tools, telecommunications, agriculture, cleaning equipment, and medical devices.
Ready to start your next project? Contact our sales team for quotes, samples, and technical support.
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