U
Manufacturer profile

Unionfab SourceDirect Verified

Shenzhen, China · 3D printing ↗

Shenzhen · 3D printing · MJF · Mill-turn · Investment casting

Max size
1500 x 1000mm
Tightest tolerance
±0.0127mm
Fastest lead time
Not stated
MOQ
No MOQ ↗
Unionfab factory
Image from the manufacturer’s website ↗ ↗

What stands out

  • Offers 3D printing MJF, with a dedicated service page ↗
  • Offers Mill-turn, with a dedicated service page ↗
  • Offers Investment casting, with a dedicated service page ↗
  • Offers 3D printing SLM/DMLS, with a dedicated service page ↗
  • ISO 27001 certificate listed on site ↗

Overview

Services

CNC 3-axis milling; CNC 4-axis; CNC 5-axis; Mill-turn; CNC turning; CNC milling; Precision grinding; Wire EDM; Aluminum extrusion; Plastic injection molding; Vacuum casting; 3D printing SLA; 3D printing SLS; 3D printing MJF; 3D… ↗

Quality control

Not stated

Delivery

Not stated

Processes ↗
  • 3D printing
  • Vacuum casting
  • CNC machining
  • Injection molding
  • Sheet metal
  • Extrusion
  • EDM
Materials ↗
  • Stainless 316/316L
  • 17-4PH
  • Titanium (general)
  • Inconel
  • Brass C360
  • PEEK
  • POM/Delrin
  • Nylon PA/PA66
  • PC
  • ABS
  • PMMA/Acrylic
  • PP/PE
  • Silicone
  • Ceramic
Industries ↗
  • Automotive
  • Medical
  • Robotics & Automation
  • Industrial equipment
  • Lighting
Certificates (listed on site) ↗
  • ISO 9001
  • ISO 13485
  • IATF 16949
  • ISO 14001
  • REACH
  • ISO 27001 (certificate listed on site)

Photos

From the manufacturer’s website ↗ ↗

About Unionfab

What they do

Shenzhen-based manufacturer; site centres on 3d printing and lists cnc 3-axis milling, cnc 4-axis, cnc 5-axis, mill-turn. ↗

What’s different

  • Offers 3D printing MJF, with a dedicated service page ↗

Prototype & production

As stated on the manufacturer’s website.

Prototype processes
  • CNC 3-axis milling
  • CNC 4-axis
  • CNC 5-axis
  • CNC turning
  • CNC milling
  • Vacuum casting
Prototype MOQNo MOQ ↗
Production lead timeproduction and ship in as fast as 1 day ↗

Detailed review

Capability matrix

5 process × material rows

One row per process and material family, as stated on the manufacturer’s site. Match a part against its own row, not the single tightest figure.

ProcessMaterialToleranceMax sizeLead time
CNC machiningNot stated±0.0127mm3600 x 2500 x 600 mm1 to 5 days
Sheet metalNot statedNot statedNot stated10 to 25 days
3D printingNot stated±0.0127mm310 × 250 × 95 mm1 to 5 days
Vacuum castingNot stated±0.25mm1500 x 1000mm3-4 days
Injection moldingNot statedNot stated1436 x 960 x 223 mmNot stated

In-house vs partner plants

0 in-house · 0 partner plant

“Not stated” means the site lists the process or finish but does not say where it is done.

Process or finishWhere it is doneNote
CNC 3-axis millingNot stated
CNC 4-axisNot stated
CNC 5-axisNot stated
Mill-turnNot stated
CNC turningNot stated
CNC millingNot stated
Precision grindingNot stated
Wire EDMNot stated
Sinker EDMNot stated
Laser cuttingNot stated
CNC punchingNot stated
Press-brake bendingNot stated
WeldingNot stated
Metal stampingNot stated
Die castingNot stated
Investment castingNot stated
Aluminum extrusionNot stated
ForgingNot stated
Metal injection molding (MIM)Not stated
Plastic injection moldingNot stated
OvermoldingNot stated
Insert moldingNot stated
Rapid toolingNot stated
Mold makingNot stated
Vacuum castingNot stated
3D printing SLANot stated
3D printing SLSNot stated
3D printing MJFNot stated
3D printing FDMNot stated
3D printing SLM/DMLSNot stated
3D printing PolyJetNot stated
3D printing DLPNot stated
Binder jettingNot stated
Electronics assemblyNot stated
Powder metallurgyNot stated
Enclosures & cabinetsNot stated
Thin-wall moldingNot stated
Stamping diesNot stated

Equipment

10 equipment types
TypeBrand / modelCountTravel / envelopeLocation
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated
Not statedNot statedNot statedNot statedNot stated

Material grades & finishes

1 material rows · 1 finish rows
MaterialsAluminum 6061; Aluminum 5052; Stainless 316/316L; 17-4PH; Titanium Gr5/Ti-6Al-4V; Titanium (general); Inconel; Brass C360; Tool steel (D2/H13/SKD); PEEK; PEI/Ultem; POM/Delrin; Nylon PA/PA66; PC; ABS; PMMA/Acrylic; PTFE; PP/PE; TPU/TPE; Glass-filled nylon; Silicone; Carbon fiber; Ceramic

Finishes

FinishesAnodizing; Powder coating; Electroplating; Electroless nickel; Passivation; Electropolishing; Bead blasting; Brushing; Polishing; Painting; Black oxide; Chromate/Alodine; Laser engraving; Silk screen/Pad printing; Heat treatment; Texturing (VDI/MT)

Inspection & reports

3 items
CertificatesISO 9001; ISO 13485; IATF 16949; AS9100; ISO 14001; UL; RoHS; REACH; ISO 27001 (certificate listed on site)
Inspection equipmentMitutoyo
Reports and process
  • {'value': 'CMM Dimensional Inspection (GD&T)', 'source_url': 'https://www.unionfab.com/help-center/inspection-capabilities', 'status': 'stated'}
  • {'value': 'CMM inspection generates a dimensioned report with nominal vs.', 'source_url': 'https://www.unionfab.com/help-center/inspection-capabilities', 'status': 'stated'}
  • {'value': 'Particularly useful for complex machined surfaces (sculptured forms, contoured datums) where CMM point sampling is insufficient to characterize surface conformance.', 'source_url': 'https://www.unionfab.com/help-center/inspection-capabilities', 'status': 'stated'}
  • {'value': 'Every Unionfab shipment is accompanied by a digital inspection report.', 'source_url': 'https://www.unionfab.com/help-center/inspection-capabilities', 'status': 'stated'}
  • {'value': 'Material compliance documentation where applicable (e.g., RoHS declaration, material cert)', 'source_url': 'https://www.unionfab.com/help-center/inspection-capabilities', 'status': 'stated'}
  • {'value': "A complete breakdown of Unionfab's QC inspection capabilities for 3D printing and CNC machining — from standard dimensional checks to CMM, X-ray, and tensile testing.", 'source_url': 'https://www.unionfab.com/help-center/inspection-capabilities', 'status': 'stated'}

Case studies

10 cases

Case studies published on the manufacturer’s site. Results are the manufacturer’s own account.

Automotive Exhaust System 3D Printing Solution site claim

Industry
Automotive
Process
3D printing SLM/DMLS; Electronics assembly
Material
Stainless 316/316L
Quantity
Not stated

Case Study: SLA 3D Printing for Custom Auto Parts site claim

Industry
Automotive
Process
3D printing SLA
Material
Nylon PA/PA66
Quantity
Not stated

Humanoid Robotics 3D Printing Solutions site claim

Industry
Robotics & Automation
Process
3D printing SLS
Material
Nylon PA/PA66; TPU/TPE
Quantity
Not stated

Customized AFO Orthotics 3D Printing Solution site claim

Industry
Medical
Process
3D printing SLS
Material
Nylon PA/PA66
Quantity
Not stated

Metal 3D Printing for Lightweight Industrial Equipment site claim

Industry
Aerospace & Defense; Automotive
Process
Welding; 3D printing SLM/DMLS
Material
Not stated
Quantity
Not stated

When Machines Bloom: How 3D Printing Cultivates New Life in Art site claim

Industry
Automotive; Medical
Process
3D printing SLM/DMLS; 3D printing PolyJet
Material
Not stated
Quantity
Not stated

SLA 3D Printed Customize Turbo Charger – For A Car Enthusiast’s Engine. site claim

Industry
Aerospace & Defense; Automotive
Process
Mold making; 3D printing SLA; Electronics assembly
Material
Carbon fiber
Quantity
Not stated

SLA 3D Printed Customize Turbo Charger - For A Car Enthusiast's Engine. site claim

Industry
Aerospace & Defense; Automotive
Process
Mold making; 3D printing SLA; Electronics assembly
Material
Carbon fiber
Quantity
Not stated

SLA Printed Transparent Resin Lotus Sculpture, A True Work of Art! site claim

Industry
Not stated
Process
3D printing SLA
Material
Not stated
Quantity
Not stated

Pen Case site claim

Industry
Not stated
Process
Vacuum casting; 3D printing SLM/DMLS
Material
Not stated
Quantity
Not stated

Ordering & logistics

10 items · 2 not stated
MOQNO MOQ
Quote turnaroundNot stated
DFMPolykits™ AI Engine: Instant Quoting & Automated DFM Logic
File formatsSLM enables single-step manufacturing of continuous internal flow channels and gradient wall thickness designs, resulting in smoother exhaust gas flow and improved airflow efficiency compared to traditional fabrication methods.
Typical lead timeDelivery: 24 Hours
Payment termsFused Deposition Modeling (FDM)
NDA & files: ValueWe also fully support and welcome the signing of a Non-Disclosure Agreement (NDA) to provide a formal legal guarantee for your commercial secrets and intellectual property.
Shipping termsGuide to 0% customs duty, EU VAT recovery, EORI registration, and DAP/DDP shipping terms for global business clients.
CarriersPriority Access via DHL, FedEx & UPS
PackagingNot stated

What they say they can’t do

0 stated limits

Stated limits and certificates the site says it does not hold. Useful for ruling a manufacturer out early.

Certificates (as the site words it): ISO 9001; ISO 13485; IATF 16949; AS9100; ISO 14001; UL; RoHS; REACH; ISO 27001 (certificate listed on site)

Inconsistencies on their site

2 inconsistencies

Places where two pages of the manufacturer’s site give different figures. Confirm these with the manufacturer before ordering.

  • Different floor-area figures stated: 0, 20,000, 80,000 m²
  • Tolerance claims range across pages: ±0.005 to ±0.8 mm (context differs by process/feature)

Company facts

7 facts · 3 site claims

Figures marked “site claim” are the manufacturer’s own statements and are shown for context only.

CityShenzhen
BeltPRD
Founded2014
Facility area0m² site claim
Countries shippedAgile Global Delivery: 24 Hours to 170+ Countries site claim
CustomersTrusted by Global Customers site claim
Factory visitsTake a Virtual Factory Tour

Full specifications

Values as stated on the manufacturer’s website. The link icon next to a value opens its source page.

Capabilities
Max axes5-axis
Max part sizeup to 1500 x 1000mm
Tightest tolerance±0.0127mm (site claim)
Equipment listMazak; Makino; Hermle; UnionTech; Farsoon; Stratasys
Materials & finishing
Material gradesStainless 316/316L; 17-4PH; Titanium (general); Inconel; Brass C360; PEEK; POM/Delrin; Nylon PA/PA66; PC; ABS; PMMA/Acrylic; PP/PE; Silicone; Ceramic
In-house surface finishesAnodizing; Powder coating; Electroplating; Electroless nickel; Bead blasting; Polishing; Painting; Laser engraving; Heat treatment; Texturing (VDI/MT) (listed; in-house vs outsourced not checked)
Quality control
Inspection equipmentNot stated
Reports available (FAI, PPAP, material certs)inspection reports/FAI/material certs mentioned
Volume & lead time
Best-fit batch sizeNot stated
MOQNo MOQ
Rush lead timeNot stated
Prototype lead timeNot stated
Production lead timeProduction and ship in as fast as 1 day
Other
Industries servedAutomotive; Medical; Robotics & Automation; Industrial equipment; Lighting
What’s different
  • Offers 3D printing MJF, with a dedicated service page
FoundedNot stated
Certificates (listed on site)ISO 9001; ISO 13485; IATF 16949; ISO 14001; REACH; ISO 27001 (certificate listed on site)
CityShenzhen, China

Sources

SourceDirect Verified: Deep-reviewed by SourceDirect from the manufacturer’s own site. This is not a factory audit.

Contact

As published on the manufacturer’s own website. Each item links to its source.

Ready to order? Contact the manufacturer directly.