Additive Manufacturing
Online 3D Printing Service in China
Professional 3D printing for rapid prototypes and production parts — delivered in as fast as 1 business day. We offer SLA, SLS, FDM, and metal DMLS processes with over 120 industrial printers, giving you unmatched capacity and consistent quality from a single, ISO 9001-certified facility in Suzhou, China.
Overview
What Is 3D Printing?
3D printing — also known as additive manufacturing — builds physical objects from digital CAD data by depositing or fusing material layer by layer. Unlike subtractive processes such as CNC machining that remove material from a solid block, 3D printing adds only the material needed, reducing waste and enabling complex geometries that are impossible or prohibitively expensive to machine.
The technology supports a wide range of materials including engineering plastics, photopolymer resins, nylon composites, and metals such as stainless steel, titanium, and aluminum. Applications span every stage of product development — from early concept models and fit-check prototypes to functional testing parts and end-use production components.
Technologies
Our 3D Printing Processes
We operate four industrial 3D printing technologies to match every project requirement — from visual prototypes to load-bearing metal parts.
SLA — Stereolithography
A UV laser traces each layer in a vat of liquid photopolymer resin, curing it into solid form. SLA delivers the smoothest surface finish (Ra 1.6 µm) and finest detail resolution of any plastic 3D printing process — ideal for visual prototypes, presentation models, and master patterns for urethane casting.
±0.1 mm Tolerance
FDM — Fused Deposition Modeling
A heated nozzle melts and extrudes thermoplastic filament — ABS, PLA, PC, PEEK — layer by layer. FDM is the most cost-effective process for large concept models, jigs, fixtures, and functional parts that need engineering-grade thermoplastics. Parts can be printed in production-grade materials like PEEK for high-temperature applications.
Lowest Cost
SLS — Selective Laser Sintering
A CO₂ laser selectively fuses nylon-based powder, building parts without support structures — every part sits in its own powder bed. SLS produces strong, functional parts with excellent mechanical properties (PA12: 48 MPa tensile, 175°C HDT). Best for snap fits, living hinges, and small-batch production runs.
Strongest Plastic
DMLS — Metal 3D Printing
A high-power fiber laser melts fine metal powder — stainless steel 316L, titanium Ti6Al4V, aluminum AlSi10Mg — layer by layer. DMLS produces fully dense metal parts with complex internal channels and lattice structures impossible to achieve with traditional CNC machining.
Specifications
3D Printing Process Comparison
Choose the right process based on your part requirements. Not sure which one fits? Ask our engineers — we'll recommend the best option for your project.
| Specification | SLA | FDM | SLS | DMLS (Metal) |
|---|---|---|---|---|
| Tolerance | ±0.1 mm | ±0.3 mm | ±0.2 mm | ±0.1 mm |
| Min. Layer Thickness | 0.025 mm | 0.1 mm | 0.1 mm | 0.02 mm |
| Min. Feature Size | 0.2 mm | 0.8 mm | 0.5 mm | 0.4 mm |
| Max. Build Size | 600×600×400 mm | 900×600×900 mm | 380×380×580 mm | 250×250×325 mm |
| Surface Finish (Ra) | 1.6 µm | 6–15 µm | 6–12 µm | 6–10 µm |
| Support Structures | Required | Required | Not required | Required |
| Typical Lead Time | 1–3 days | 1–3 days | 2–4 days | 3–5 days |
| Cost Level | $$ | $ | $$ | $$$$ |
| Best For | Visual models, fine detail | Concept models, large parts | Functional parts, hinges | Metal functional parts |
Material Selection
3D Printing Materials
We offer over 50 material options across plastics, resins, composites, and metals. Each material is matched to a specific 3D printing process to optimize part strength, appearance, and cost. Need help choosing? Our engineers provide free material recommendations with every quote.
Browse All Materials →Plastics & Resins
Metals
Why 3D Print?
Advantages of 3D Printing
Fast Turnaround
Parts delivered in as fast as 1 business day. No tooling, no setup delays — go from CAD file to physical part overnight.
Design Freedom
Internal channels, lattice structures, organic shapes, and part consolidation — geometries impossible with traditional manufacturing.
Low Cost, No MOQ
Prototypes from $10 with no minimum order. Economical for 1–100 parts — scale to injection molding when volume justifies tooling.
Rapid Iteration
Print, test, revise, and reprint in days — not weeks. Accelerate your product development cycle by 60–80% compared to traditional tooled processes.
Surface Finishes
Post-Processing Options
Enhance the appearance, strength, or functionality of your 3D printed parts with our range of finishing services.
Sanding & Polishing
Smooth layer lines to a consistent matte or gloss finish. Standard for SLA and FDM parts.
Bead Blasting
Uniform matte texture using fine glass beads. Removes support marks and powder residue from SLS parts.
Vapor Smoothing
Chemical vapor seals the surface to near-injection-molded smoothness. Available for ABS and nylon parts.
Painting & Dyeing
Custom RAL/Pantone color matching. Spray painting for all processes; SLS nylon parts can be dyed black.
Electroplating
Nickel, chrome, or copper plating for metallic appearance and EMI shielding on plastic 3D prints.
CNC Post-Machining
Machine critical surfaces, threads, or tight-tolerance features after 3D printing the bulk geometry.
Process
How to Order 3D Printed Parts
Upload CAD File
STL, STEP, IGES, OBJ, or 3MF. Max file size 100 MB.
Get DFM Feedback
Our engineers review your design and recommend the best process and material.
Production
Parts are printed, cleaned, and post-processed in our ISO 9001 facility.
Ship Worldwide
DHL/FedEx express shipping. Parts arrive in 3–5 days globally.
FAQ
Frequently Asked Questions
3D printed prototypes typically cost $10–$1,000 depending on the process (SLA, SLS, FDM, or metal DMLS), part size, geometric complexity, and post-processing requirements. SLA resin parts start around $10 for small components. Upload your CAD file for an instant quote — we respond within 24 hours.
We deliver 3D printed parts in as fast as 1 business day for SLA and FDM. SLS parts typically ship in 2–3 days, and metal DMLS parts in 3–5 days. Expedited options are available for urgent prototyping needs.
We accept STL, STEP, STP, IGES, OBJ, and 3MF formats. For best results, export your CAD model with a minimum triangle resolution of 0.01 mm. Maximum file size is 100 MB — for larger assemblies, contact us directly.
Choose SLA for smooth surface finish and fine details (visual prototypes, presentation models). Choose SLS for strong, functional parts that don't need supports (snap fits, living hinges). Choose FDM for the most affordable concept models and large parts. Choose DMLS for metal functional prototypes requiring strength and heat resistance. Not sure? Our engineers will recommend the best option with your quote.
Maximum build volumes vary by process: SLA up to 600 × 600 × 400 mm, SLS up to 380 × 380 × 580 mm, FDM up to 900 × 600 × 900 mm, and DMLS up to 250 × 250 × 325 mm. Larger parts can be printed in sections and bonded.
Yes. SLS nylon parts and DMLS metal parts are widely used in end-use production. SLS PA12 offers tensile strength up to 48 MPa and heat deflection up to 175°C. For higher volumes, we also offer urethane casting and injection molding as bridge-to-production options.
Options include sanding, bead blasting, vapor smoothing, painting, dyeing, electroplating, clear coating, heat treatment, and CNC machining of critical surfaces. Specify your requirements when requesting a quote.
Explore More Services
CNC Machining →
3-axis, 4-axis & 5-axis milling and turning for metal and plastic parts
Urethane Casting →
100 parts in 5 days from silicone molds — production-grade finish
Injection Molding →
Prototype and production tooling, insert & overmolding
Sheet Metal →
Laser cutting, bending, welding & stamping with no MOQ