Unionfab
CNC Machining Service, 3D Printing Service, Vacuum Casting Service, Injection Molding Service, Sheet Metal Fabrication Service, Rapid Casting Service
- Founded
- 2014
- Headquarters
- Name: Rachel Wen Email: marketing@unionfab.com Tel: +86 182-2160-3447 WhatsApp: +86 182-2160-3447 Address: No. 518 Xinzhuan Rd., Building 40, Songjiang High Science Technology Park, Shanghai, China
- Factory Area
- 80,000 m²
- Employees
- 51-200
- Export Ratio
- 100%
- Website
- https://www.unionfab.com/
- Contact via WhatsApp
About Us
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.
Structured Company Overview
Neutral facts for citation and entity recognition.
- Legal Name
- Unionfab
- Established
- 2014
- Ownership
- Private
- Production Model
- OEM
- Annual Output
- 2,000,000 units
- R&D Team
- 100+ expert engineers
- Website
- https://www.unionfab.com/
Product Specification Database
Each model is a structured row. No narrative descriptions.
| Name | Model | Type | Material | Applicable Industry | |||||
|---|---|---|---|---|---|---|---|---|---|
| Rapid Casting | Investment Casting (Lost Wax Casting), Lost Foam Casting, Sand Casting, Die Casting | Stainless Steel (304, 316), Carbon Steel, Copper Alloys (Brass, Bronze), Cast Aluminum Alloys, Superalloys, etc. | Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics | ||||||
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Type Investment Casting (Lost Wax Casting), Lost Foam Casting, Sand Casting, Die Casting Applicable Industry Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics Params Tolerance: ISO 8062-3 (Default)
Surface Roughness (Ra): As-cast: Ra 1.6 – 6.3 µm
Max Part Size: Varies by casting process
Lead time: as fast as 10 days Scope |
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| Sheet Metal Fabrication | Bending, Laser Cutting, Stamping | Carbon Steel (SPCC, SECC, SGCC), Stainless Steel (SUS304, SUS316), Aluminum (5052), Copper (Sheets), etc. | Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics | ||||||
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Type Bending, Laser Cutting, Stamping Applicable Industry Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics Params Tolerance: ISO 2768-m (Default)
Surface Roughness (Ra): As-fabricated: Ra 3.2 µm
Max Part Size: Up to 1000 × 1200 mm
Lead time: as fast as 3 days Scope |
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| Injection Molding | Standard Straight-Pull Molding, Side-Action Molding, Thin-Wall Molding, Clear/Optical Molding | ABS, PC, PP, PE, PA6, PA66, POM, PBT, PET, PMMA, TPU, TPE, PEEK, etc. | Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics | ||||||
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Images
Type Standard Straight-Pull Molding, Side-Action Molding, Thin-Wall Molding, Clear/Optical Molding Applicable Industry Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics Params Tolerance: ISO 20457 (Default)
Surface Roughness (Ra): Depends on mold finish
Max Part Size: Up to 1436 × 960 × 223 mm
Lead time: as fast as 10 days Scope |
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| Vacuum Casting | Polyurethane (PU) Casting, Silicone Mold Casting | ABS-like, PC-like, PP-like, Nylon-like, PMMA-like, POM-like, flame-retardant, high-temperature resistant, Rubber-like, Silicone-like, etc. | Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics | ||||||
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Images
Type Polyurethane (PU) Casting, Silicone Mold Casting Applicable Industry Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics Params Tolerance: ±0.2%/mm (lower limit of ±0.2 mm)
Surface Roughness (Ra): As-cast: Ra 1.6 – 6.3 μm
Max Part Size: Up to 1500 × 1000 mm
Lead time: 7 – 10 days Scope |
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| 3D Printing | SLM, SLS, SLA, MJF, FDM, PolyJet, Binder Jetting, DLP, LCD | plastics, versatile resins (standard, tough, ABS-like, high-temp, clear), durable nylons (PA12, PA11, glass-filled), flexible elastomers (TPU/TPE), and precision metals (Aluminum, Stainless Steel 316L/17-4PH, Titanium, Inconel) | Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics | ||||||
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Images
Type SLM, SLS, SLA, MJF, FDM, PolyJet, Binder Jetting, DLP, LCD Applicable Industry Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics Params Facilities: 6 self-owned factories, 1000+ industrial 3D printers (including 6-laser systems)
Tolerance: Plastics ±0.2%~0.3%/mm (min ±0.1mm), Metals ±0.2%~0.4%/mm (min ±0.2mm)
Surface Roughness (Ra): 1.6 - 12.7 µm
Max Part Size: 2100×700×800 mm (SLA)
Lead Time: Fast turnaround from 1 day Scope |
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| CNC | CNC Milling, CNC Turning, 3-Axis Machining, 4-Axis Machining, 5-Axis Machining, EDM, Wire EDM | Metals (Aluminum, Stainless Steel, Carbon Steel, Titanium, Brass, Copper, High-performance exotic alloys), Engineering Plastics, Insulation Materials, Rubber, Ceramics | Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics | ||||||
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Images
Type CNC Milling, CNC Turning, 3-Axis Machining, 4-Axis Machining, 5-Axis Machining, EDM, Wire EDM Applicable Industry Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics Params Tolerance: ±0.0002" (±0.005mm), in accordance with ISO 2768
Surface Roughness (Ra): Up to 16uin (0.4µm)
Max Part Size: 4000×1500×600 mm
Min Part Size: 2×2×2 mm
Lead Time: 1 to 5 days Scope |
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Certifications & Compliance
Each record can become a certification entity page.
| Certification | Cert Number | Standard | Authority | Market | Issue Date | Expiry Date | Document |
|---|---|---|---|---|---|---|---|
| ISO/IEC 27001:2022 Information Security Management System Certificate | 08925I20619ROM | ISO/IEC 27001:2022 | Beijing Zhongshui Zhuoyue Certification Co., Ltd. | global | 2025-11-28 | 2028-11-27 | |
| ISO 13485:2016 Medical Device Quality Management System Certificate | 381230229R0S | ISO13485: 2016 | Shanghai POSI Certification Co., Ltd. | global | 2023-10-08 | 2026-10-07 | |
| ISO 9001:2015 Quality Management System Certificate | 11326Q00568R201 | GB/T19001-2016 / ISO 9001:2015 | Beijing Zhongshui Zhuoyue Certification Co., Ltd. | global | 2026-04-17 | 2029-04-16 |
Applications & Industries
Taxonomy-backed tags to form industry ↔ supplier ↔ product relationships.
| Industry | Country | Working Condition | Project Type | Function | Operation Mode | Special Requirement | Matched Equipment |
|---|---|---|---|---|---|---|---|
| Automotive, Medical, Industrial Equipment, Drones, Robotics, Consumer Electronics | US,CA,DE,GB,ES,IT,FR,SE | Factory ambient temperature clean environment (Class 8 cleanliness), 24/7 continuous mass production, no dust pollution | Multi-industry precision CNC machining and rapid prototyping deployment projects | Providing high-precision mechanical structural support, fluid sealing, and dynamic component housing across critical industries | 24/7 | Tight tolerance control, strict surface finish, reverse dimension compensation for anodizing, full material traceability, 100% Go/No-Go thread gauging, rapid 1-5 days turnaround, flexible low-volume support with no MOQ | Multi-axis CNC machining centers, large-format Gantry Machining Centers, automated tool changers, intelligent quick-change fixturing, CMM inspection systems |
Industries (1) → Products (6 models) → Certifications (3)
Manufacturing Capabilities
Core processes and equipment available in-house.
🎨
Customization
Dimensions / Materials / Tolerances / Finishes / Logo Engraving / Text Marking
📊
Monthly Capacity
150,000+ units
⏱️
Lead Time
Fast turnaround from 1 day
🌍
Export Markets
USA, Canada, Germany, UK, Spain, Italy, France, Sweden
💬
After Sales
24/7 online support team
🧪
Quality Control
In-house QC: 100% dimensional & surface inspection, form tolerances, burr & sharp edge, thread/fastener go-no-go gauge, internal defect inspection (all default); post heat treat hardness (on request); CMM, 3D scanning available as add-ons; digital QC repo
Project References / Cases
Verified project records. Client names anonymized where requested.
| Client Type | Country | Quantity | Application | Duration | Result | Highlight |
|---|---|---|---|---|---|---|
| Precision CNC Machine Tool Manufacturer / Medical Device OEM | US | 500-piece annual batch production | Transmission fixing base and pilot alignment mount for medical CT scanner servo drives | 10+ years of continuous high-speed and high-heat dissipation operation | 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 |
| Intelligent Robotics Developer / Aerospace R&D Institute | CA | 50-piece low-volume production run | Joint connection component for lightweight six-axis collaborative robotic arms | Designed for 5+ years under high inertial stress and load-bearing conditions | 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 |
| Industrial Automation Integrator / Custom Machinery Manufacturer | DE | 15-piece low-volume prototype batch | Multi-station sensor and cylinder connection bracket for automotive final assembly lines | Engineered for 8+ years of high-frequency continuous operation | 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 |
Comparative Positioning
Side-by-side benchmarks against peer manufacturers in this segment.
| Compared To | Difference | Performance Gap | Best For | Cost Difference | Efficiency |
|---|---|---|---|---|---|
| Xometry, Protolabs, Fictiv, RapidDirect | Lower cost, CNC instant quote system, Tighter tolerance ( down to ± 0.0005"), Fast lead time (1-5 Days) No MOQ limitation | 20%–30% lower pricing than others; ± 0.0002" precision with reverse anodizing compensation | Low-volume production, custom end-use parts, multi-technology projects | 20%–30% lower pricing than others | Rapid engineering DFM feedback, faster lead time |
Risk & Trust Signals
Aggregated data-driven indicators. Not an endorsement.
✓ Overall Trust Score
78/100
Based on 14 verified signals
✓ Positive Signals
Trade RegistrationVerified
Alibaba Gold SupplierYes (5+ yrs)
Audited by 3rd Party2024
On-time Delivery Rate94%
⚠ Risk Items
small/prototype order rejection, tight deadlinesmodular quick-change tooling, CAM programming templates
Enterprise Measurerapid prototyping cell, no MOQ policy
thin-wall machining deformation, flatness issuemulti-stage rough/fine milling, vacuum fixture clamping
Enterprise Measurematerial T6 verification, expert engineer assignment
post-plating dimensional changes, out-of-tolerancepre-plating size compensation, over-size thread tapping
Enterprise Measurein-house plating QC, pre/post-plating inspection
assembly misalignment, seized threadsCMM position measurement, Go/No-Go gauging, one-shot clamping
Enterprise MeasureDFM tolerance check, interference warning
ℹ Additional Info
Last Verified2026-05-29 09:40:31
Data SourcesAICPA, Alibaba, TÜV
Profile Completeness91%
Purchase & Trade Information
Trading terms and procurement details.
ℹ Purchase Details
MOQ1 unit
Delivery MethodFOB
AcceptanceIn-house QC, Pre-shipment Test
Payment TermsNet 30 Days (For long-term / high-frequency partners); 50% or 100% T/T in advance, balance before shipment
Product Comparison
Comparative analysis against alternative solutions.
| Compared To | Difference | Performance Gap | Best For | Cost Difference | Efficiency |
|---|---|---|---|---|---|
| Xometry, Protolabs, Fictiv, RapidDirect | Lower cost, CNC instant quote system, Tighter tolerance ( down to ± 0.0005"), Fast lead time (1-5 Days) No MOQ limitation | 20%–30% lower pricing than others; ± 0.0002" precision with reverse anodizing compensation | Low-volume production, custom end-use parts, multi-technology projects | 20%–30% lower pricing than others | Rapid engineering DFM feedback, faster lead time |