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CUSTOM ONLINE 3D PRINTING SERVICE
Seven 3D Printing
Processes.One Platform.
Production-Ready.
Partner with China’s largest 3D printing service provider for instant quotes, industrial-grade quality, and fast turnaround—from rapid prototyping to low-volume production.
Upload CDA.Get Free DFM Review
STEP, STL, IGES, OBJ and more. We’ll route your part to the right process before production starts.
Instant Pricing • No MOQ • Secure Upload • 10% Off First Order
ROUTES
20+
Publicly visible finishing routes across Unionfab service pages for customers who need more than a raw manufactured part.
WORKFLOW
1 Order
Select material and finish in the same quoting and ordering flow.
COVERAGE
Multi-Process
Finishing support is shown alongside 3D printing, CNC machining, and injection molding workflows.
PROOF
4.6 / 5
Public review score adds trust for customers placing cosmetic or customer-facing part orders.
Various Surface Treatment Services
Unionfab provides industrial-grade 3D printing services for engineers, product designers, and manufacturers worldwide.
- Functional Parts:
Structures, Housings, End-use Components and Tooling & Jigs/Fixtures in Aerospace, Automotive, Robotics, Medical Devices and Industrial Machinery; On-Demand Replacement Parts etc. - Rapid Prototyping:
Aesthetic & Concept Models; Functional Test & Engineering Validation Samples; Touch & Grip Samples; Vacuum Casting Master Mold; Fit-check & Assembly Prototypes etc. - Rapid Prototyping:
Aesthetic & Concept Models; Functional Test & Engineering Validation Samples; Touch & Grip Samples; Vacuum Casting Master Mold; Fit-check & Assembly Prototypes etc.
Painting
Oil injection process is a common surface treatment method, mainly used to improve the appearance, touch and durability of products, widely used in electronic products, auto parts, home appliances, hardware products, plastic parts and other fields.
Case
Painting
Oil injection process is a common surface treatment method, mainly used to improve the appearance, touch and durability of products, widely used in electronic products, auto parts, home appliances, hardware products, plastic parts and other fields.
Case
Painting
Oil injection process is a common surface treatment method, mainly used to improve the appearance, touch and durability of products, widely used in electronic products, auto parts, home appliances, hardware products, plastic parts and other fields.
Case
Painting
Oil injection process is a common surface treatment method, mainly used to improve the appearance, touch and durability of products, widely used in electronic products, auto parts, home appliances, hardware products, plastic parts and other fields.
Case
Painting
Oil injection process is a common surface treatment method, mainly used to improve the appearance, touch and durability of products, widely used in electronic products, auto parts, home appliances, hardware products, plastic parts and other fields.
Case
Hardware That Changes the Standard
Most finishing services rely on manual polishing and spray painting. Unionfab runs two of the most advanced post-processing platforms in the industry — delivering repeatability and surface quality that manual processes cannot match at any scale.
DyeMansion
PolyShot + DyeColor System
For SLS/MJF Nylon: PA12 · PA11 · PP · TPU
DyeMansion’s industrial post-processing platform is the de facto standard for premium SLS and MJF nylon surfaces. The PolyShot Surfacing system (PSS) uniformly de-powders and smooths nylon parts through controlled micro-blasting — improving mechanical properties while eliminating the inconsistency of manual sanding. DyeColor then delivers deep, uniform color penetration using industrial dyes with Pantone matching, giving each part a consistent, fade-resistant finish.
- Form and fit testing
Automated surface smoothing — reduces Ra by up to 70%. Improves tensile strength by ~10% while uniformly removing powder residue from all surfaces including internal channels.
- Form and fit testing
Deep-penetration dye system achieving color depths of 0.2–0.5 mm. Consistent batch color across all parts. Pantone / RAL cross-reference support. No surface cracking or peeling.
- Form and fit testing
PA12 (Nylon 12), PA11 (Nylon 11), TPU, PP, and select PA-CF composites from SLS and MJF platforms.
Before/After
DyeMansion
PolyShot + DyeColor System
For SLS/MJF Nylon: PA12 · PA11 · PP · TPU
DyeMansion’s industrial post-processing platform is the de facto standard for premium SLS and MJF nylon surfaces. The PolyShot Surfacing system (PSS) uniformly de-powders and smooths nylon parts through controlled micro-blasting — improving mechanical properties while eliminating the inconsistency of manual sanding. DyeColor then delivers deep, uniform color penetration using industrial dyes with Pantone matching, giving each part a consistent, fade-resistant finish.
- Form and fit testing
Automated surface smoothing — reduces Ra by up to 70%. Improves tensile strength by ~10% while uniformly removing powder residue from all surfaces including internal channels.
- Form and fit testing
Deep-penetration dye system achieving color depths of 0.2–0.5 mm. Consistent batch color across all parts. Pantone / RAL cross-reference support. No surface cracking or peeling.
- Form and fit testing
PA12 (Nylon 12), PA11 (Nylon 11), TPU, PP, and select PA-CF composites from SLS and MJF platforms.
Before/After
FAQ's about Finishing Order
What file formats do you accept for 3D printing?
At Unionfab, we support a wide range of 3D file formats to ensure smooth compatibility with our manufacturing systems. The most commonly recommended formats are STEP (.stp/.step) and STL (.stl). If your design is in another format (such as IGES, OBJ, or others), it can usually be processed as well, but we suggest converting it to STEP or STL for the best results. These formats help preserve critical design details and ensure a more accurate and stable printing outcome.
What is the typical lead time for my 3D printing order?
Typically, many standard 3D printing orders are completed within 1–3 business days. However, the exact lead time depends on the part’s size, complexity, material, and quantity. For a precise timeline, we recommend uploading your design files so our team can provide a detailed estimate based on your specific requirements.
How much does your 3D printing service cost?
The formula below encompasses all cost components involved in an industrial 3D printing quote:
Total Cost = Printing Cost (Material Unit Price × Part Weight) + Complexity Surcharge + Post-Processing + Packaging + Shipping + Customs Duty
For detailed explanation of the cost items above, you can refer to our 3d printing cost guide.
How does Unionfab ensure the quality of 3D printed parts?
At Unionfab, we ensure quality through a strict end-to-end control process. This includes file checks before production, process monitoring, and final inspection to verify part accuracy and consistency. We can also provide inspection reports or additional quality checks upon request, and our facilities follow recognized quality standards to ensure reliable results.
If your project has specific quality requirements, our team will work closely with you to define and meet those standards.
Is my design data kept confidential?
Absolutely. We understand the importance of your intellectual property. Unionfab follows strict data security protocols. We are happy to sign a Non-Disclosure Agreement (NDA) before you upload your files. Our internal platform is encrypted, ensuring that your designs are only accessible to the essential technical team involved in your project.
I'm not sure which material or process to choose. Can you help?
Unionfab isn’t just a service provider; we are your manufacturing partner. Our Online Knowledge Base and expert engineers can provide material recommendations based on your part’s application (e.g., heat resistance, strength, or flexibility).
How can I track the status of my order?
Once your order is placed, you can monitor the entire production progress in real-time through your Unionfab User Dashboard – from “In Production” to “Quality Inspection” and “Shipped.”
