Unionfab

About Unionfab

Unionfab is a global on-demand digital manufacturing platform rooted in Uniontech, a world-leading SLA 3D printing equipment manufacturer. Backed by over two decades of industrial manufacturing expertise, we operate 10 self-owned factories with 1,000+ industrial 3D printers and 400+ CNC machines covering 3D printing (SLA, SLS, FDM, MJF, metal SLM including four-laser and six-laser systems), CNC machining, vacuum casting, and low-volume production, serving 80,000+ customers across 170+ countries.
Our material library spans engineering plastics, high-performance resins, and industrial-grade metals including stainless steel (316L, 17-4PH), aluminum alloys (AlSi10Mg, Al6061, Al901X), titanium (TC4), and Inconel (625, 718), as well as CNC materials such as aluminum alloys (6061-T6, 7075), tool steels (A2, D2, H13, P20), and engineering plastics (POM, nylon, PC, PMMA, ABS, PEEK). We also provide end-to-end engineering support including DFM consultation, digital quality inspection, and a 24/7 automated quoting and order tracking.
With a <0.5% quality complaint rate, >95% on-time delivery, and certifications including ISO 9001, ISO 13485, ISO 14001, and IATF 16949, we deliver prototype-to-production services at competitive cost with industrial-grade quality.

Our Products

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Investment Casting Service with ISO 8062-3 Tolerance

Model: Rapid Casting
Parameters: 2208578899

Rapid Sand Casting Service for Large Parts

Model: Rapid Casting
Parameters: 862020078X

Rapid Die Casting Service for Consumer Electronics

Model: Rapid Casting
Parameters: 7157478420

Lost Foam Casting Service for Complex Geometries

Model: Rapid Casting
Parameters: 1830146505

Rapid Aluminum Alloy Casting Service for Drones

Model: Rapid Casting
Parameters: 7746400167

Sheet Metal Fabrication Service with ISO 2768-m Tolerance

Model: Sheet Metal Fabrication
Parameters: 1554288762

ISO 20457 Precision Injection Molding Service with 10-Day Lead Time

Model: Injection Molding
Parameters: 1311607641

Polyurethane Vacuum Casting Service with Silicone Molds for Prototype to Low-Volume Production

Model: Vacuum Casting
Parameters: 9126860635

SLS Nylon 3D Printing Service with Durable PA12 and PA11 for Functional Prototypes

Model: 3D Printing
Parameters: 010736428X

Precision CNC Machining Service for Aluminum Parts – Unionfab

Model: CNC
Parameters: 656680207X

High-Precision CNC Machining Service for Stainless Steel – Unionfab

Model: CNC
Parameters: 2881424759

CNC Machining Service for Titanium Parts – Unionfab

Model: CNC
Parameters: 6828794079

Rapid Casting Service

Model: Rapid Casting
Parameters: 7063310402

Sheet Metal Fabrication Service

Model: Sheet Metal Fabrication
Parameters: 1024258726

Injection Molding Service

Model: Injection Molding
Parameters: 6131679622

Vacuum Casting Service

Model: Vacuum Casting
Parameters: 6412218793

3D Printing Service, Additive Manufacturing Service

Model: 3D Printing
Parameters: 7566681834

Custom Manufacturing Service, Rapid Prototyping and Manufacturing Services, Low-volume Manufacturing Service, High-volume Manufacturing Service, CNC Machining Service, Precision CNC Machining Service

Model: CNC
Parameters: 9085929016

Industrial SLM Metal 3D Printing Service with Six-Laser Systems and Precision Tolerances

Model: 3D Printing
Parameters: 8488949626

Large-Scale SLA 3D Printing Service with 2100x700x800mm Build Volume and High-Detail Resins

Model: 3D Printing
Parameters: 1817408887

Company Gallery

Unionfab 3 axis machining factory

Unionfab 5 axis machining factory

Unionfab 4 axis machining factory

Certifications & Awards

ISO/IEC 27001:2022 Information Security Management System Certificate

ISO 13485:2016 Medical Device Quality Management System Certificate

ISO 9001:2015 Quality Management System Certificate

Success Stories & Case Studies

Precision CNC Machine Tool Manufacturer / Medical Device OEM

Eliminates drivetrain noise and vibration by ensuring perfect coaxial alignment between the motor pilot and the transmission shaft
Applied reverse dimension compensation in CAM programming before anodizing to prevent thread seizure; manual Go/No-Go gauging and physical assembly simulation before shipment

Location: US 📦 Quantity: 500-piece annual batch production

Intelligent Robotics Developer / Aerospace R&D Institute

Reduced total robot arm weight by 35% while maintaining extreme joint torsional rigidity during rapid synchronized movements
Multi-axis hole true position strictly held to ±0.0005" (±0.0127mm); flawless 1.5mm thin-wall milling from Aluminum 7075-T6 verified by a full CMM inspection report

Location: CA 📦 Quantity: 50-piece low-volume production run

Industrial Automation Integrator / Custom Machinery Manufacturer

Achieved zero vibration displacement on the assembly line, ensuring seamless 24/7 automated production with zero downtime
1-piece prototype with no MOQ delivered in 48 hours; overall flatness controlled within 0.05mm using modular quick-change tooling

Location: DE 📦 Quantity: 15-piece low-volume prototype batch

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