SMI Casting Limited | Die Casting, CNC Machining & Plastic Molding Supplier

About SMI Casting

SMI Casting Limited is a leading manufacturer specializing in mechanical parts with core expertise in die casting, CNC high precision machining, and plastic molding. Based in Shenzhen, China, we serve industries such as Green Energy, Medical Equipment, Telecommunication, Household Appliances, Military, Lighting, Hydraulics, and Building.

Our manufacturing services are built on innovation, quality, and fast turnaround. With full OEM capabilities and a monthly production capacity of up to 5,000 units, we deliver precision-engineered components that meet strict international standards.

±0.05 mm Tolerance on Aluminum Die Castings
3-Week Average Delivery Time
Quotations Provided Within 24 Hours
Fast Response & Dedicated Sales Support

Our Core Manufacturing Services

We offer end-to-end manufacturing solutions with advanced technology and strict quality control across all production stages.

Die Casting

High-pressure aluminum die casting for structural and decorative components. Ideal for lighting fixtures, machinery mounts, and architectural panels.

• ±0.05 mm precision
• 5,000 pcs/month capacity
• Fast delivery in 3 weeks
• OEM & ODM supported

CNC High Precision Machining

Custom CNC turning and milling for complex geometries and tight tolerances. Perfect for prototypes and production runs.

• Supports 2D/3D drawings (PDF, DXF, IGS, STP)
• Rapid prototyping available
• Metal & plastic machining
• Fast quoting within 24h

Plastic Molding

Injection molding for durable plastic housings, connectors, and industrial components with excellent surface finish.

• Custom molds & tooling
• High-volume production
• Wide material selection
• Full OEM services

Featured Products

Explore our high-precision components trusted by global industries.

Aluminum Housing

Die-cast aluminum enclosure with high thermal conductivity and structural strength. Ideal for power tools and automotive applications.

Aluminum Radiator

High-efficiency heatsink for thermal management in lighting and electronics. Precision-engineered for optimal airflow.

CNC Machining Prototype

Rapid prototyping service for functional testing and design validation. Fast turnaround and high accuracy.

Plastic Mold

Custom injection molds for high-volume plastic parts. Durable steel construction with precise cavity design.

Metal Connector

Robust die-cast aluminum connector for industrial and electrical applications. Corrosion-resistant and durable.

Plastic Housings

Custom injection-molded enclosures for electronics, medical devices, and consumer products. Smooth finish and tight tolerances.

Aluminum Heatsink

Efficient thermal dissipation solution for battery chargers, power supplies, and LED lighting systems.

CNC Inverter Housing

Precision-machined aluminum housing for inverters and power electronics. Designed for durability and heat resistance.

Frequently Asked Questions

What materials do you work with?

We specialize in aluminum die casting and CNC machining. For plastic molding, we support a wide range of engineering-grade thermoplastics.

How fast can I get a quote?

We provide quotations within 24 hours of receiving your 2D (PDF, DXF) or 3D (IGS, STP) drawings.

Do you offer OEM services?

Yes, we provide full OEM and ODM services, including custom design, tooling, and production.

What industries do you serve?

Our clients span Green Energy, Medical Equipment, Telecommunication, Household Appliances, Military, Lighting, Hydraulics, and Building sectors.

Get in Touch

Need a quote or have questions? Contact us today for fast, professional support.

Company: SMI Casting Limited

Address: 12G, Block A1, Zhujiang Square, Longgang District, Shenzhen, China

Phone: +86-755-29742490

Email: sales@smicasting.com

Sales Manager: Shelly (Mobile: 86-13823170201)

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