High Precision Custom 3D Printing Service in China

  • SLA, DLP, SLS, MJF, FDM, SLM, DMLS Multiple Processes
  • 20+ Printing Machines
  • 40+ Materials and Surface Finishes Available
  • 50% Lower Costs than in Europe and the U.S.
  • ISO 9001 Certified Manufacturer
  • Instant Online Quote within 8 Hours
  • Lead Time as Fast as 2 Days
3D Printing Parts

Online 3D Printing Services at CEX

At CEX, we deliver one-stop 3D printing solutions with SLA, DLP, SLS, MJF, FDM, SLM, and DMLS technologies, covering plastics and metals for rapid prototyping and small to medium batch production.

With instant quotations, rapid turnaround, and strict quality control, we ensure dependable results for complex geometries, precision parts, and end-use applications, while keeping costs up to 50% lower than in Europe and the U.S.

Our 3D Printing Capabilities

We support six major 3D printing processes. Each process is backed by our in-house equipment and expertise to deliver parts with high precision, speed, and reliability.

Plastic & Metal 3D Printing Materials We Offer

We offer a variety of material options for your 3D printing Parts. If you have other specific material requirements, please feel free to contact us!

ABS

ABS

Types:

ABS-M30, ABSplus-P430, ABS-ESD7, ABS-M30i, CF-filled ABS (additive filaments), etc

Available Processes:

FDM

Available Finishes:

Bead Blasting, Sanding, Vapor Smoothing (Acetone), Tapping/Threads, Painting, EMI Shielding Spray, Metallization, etc

Cost:

$$

PLA

PLA

Types:

Standard PLA, PLA+, Tough PLA, HT-PLA (Annealable), PLA/PHA, CF-PLA (Additive Filaments), etc

Available Processes:

FDM

Available Finishes:

Sanding, Filler/Primer + Painting, Epoxy Infiltration/Clear Coat, Drilling/Tapping (Light), Annealing for Higher Heat Deflection, etc

Cost:

$

Nylon (PA)

Nylon (PA)

Types:

PA11, PA12, PA2200 (EOS), PA12 GB (Glass-Bead), PA12 GF (Glass-Fiber), PA12 CF (Carbon-Fiber), PA11-Bio; PA6 (Specialized SLS), etc

Available Processes:

SLS, MJF, FDM

Available Finishes:

Bead Blasting, Dyeing (Black/Colors), Vapor Smoothing (Chemical), Epoxy Infiltration, Machining/Threads, Media Tumbling, etc

Cost:

$$

PETG

PETG

Types:

PETG (Standard), PETG-CF (Carbon-Fiber), CPE/CPE+ (Co-Polyesters Used in FDM), etc

Available Processes:

FDM

Available Finishes:

Sanding/Polishing, Machining, Solvent Wipe (Surface Leveling), Painting/Coating, Heat-Set Inserts, etc

Cost:

$$

PC

PC

Types:

PC (Industrial FDM), PC-ABS, PC-ISO (Biocompatible), CF-PC (Reinforced Filament), etc

Available Processes:

FDM

Available Finishes:

Machining, Bead Blasting, Annealing, Painting, Solvent Vapor Polish (Specialized), Threaded Inserts, etc

Cost:

$$$

ASA

ASA

Types:

Industrial ASA Filaments, UV-Stabilized ASA Blends, ASA-CF (Reinforced Filaments), etc

Available Processes:

FDM

Available Finishes:

Sanding, Vapor Smoothing (MEK/Ketone), Painting, Machining/Light Tapping, UV-Resistant Coatings, etc

Cost:

$$

TPU

TPU

Types:

TPU 85A/90A/95A/98A (Shore A), Ultrasint TPU 88A (MJF), EOS TPU 1301 (SLS), Flexible FDM TPU Filaments, etc

Available Processes:

FDM, SLS, MJF

Available Finishes:

Dyeing, Sealing/Coating, Adhesive Bonding, Media Tumbling, Trimming, Limited Machining, etc

Cost:

$$

Resin (Photopolymer)

Resin (Photopolymer)

Types:

Flexible 80A (Rubber-Like), Elastic 50A (Silicone-Like, High Elongation), etc

Available Processes:

SLA, DLP

Available Finishes:

Wash (IPA), UV Curing, Light Sanding/Polishing, Clear Coating, Painting, Adhesive Bonding, Insert Installation, etc

Cost:

$$-$$$

LSR (Liquid Silicone Rubber)

LSR (Liquid Silicone Rubber)

Types:

Medical-Grade LSR, Food-Grade LSR, High-Transparency LSR, High-Tear-Strength LSR, Flame-Retardant LSR, etc

Available Processes:

DIW (Direct Ink Writing), Inkjet 3D Printing

Available Finishes:

Thermal Curing, Trimming, Plasma Treatment, Corona Treatment, Functional Coating, Coloring, etc

Cost:

$$$

Aluminum

Aluminum

Types:

AlSi10Mg, AlSi12, Scalmalloy®, A357 (LPBF), etc

Available Processes:

SLM, DMLS

Available Finishes:

Stress Relief, Machining, Bead Blasting, Shot Peening, Anodizing (Type II/III), Polishing, Coating, etc

Cost:

$$$

Stainless Steel

Stainless Steel

Types:

316L, 17-4 PH, 304L, 15-5 PH (AM Powders), etc

Available Processes:

SLM, DMLS

Available Finishes:

Stress Relief/HIP, Machining, Electropolishing, Passivation, Bead Blasting, Shot Peening, PVD Coatings, etc

Cost:

$$$$

Titanium

Titanium

Types:

Ti-6Al-4V (Grade 5), Ti-6Al-4V ELI (Grade 23), Ti Grade 2, etc

Available Processes:

SLM, DMLS

Available Finishes:

Stress Relief/HIP, Machining, Polishing, Blasting, Anodizing (Color), Surface Texturing, etc

Cost:

$$$$

Inconel (Nickel-Based Superalloy)

Inconel (Nickel-Based Superalloy)

Types:

Inconel 718, Inconel 625 (AM powders), etc

Available Processes:

SLM, DMLS

Available Finishes:

Stress Relief/HIP, Heat Treatment, Machining, Shot Peening, High-Temp Coatings, etc

Cost:

$$$$

Tool Steel

Tool Steel

Types:

Maraging Steel 1.2709 (M300), H13 (1.2344), M2 HSS (LPBF), A2/D2 (Vendor-Specific AM Grades), etc

Available Processes:

SLM, DMLS

Available Finishes:

Stress Relief + Aging (1.2709), Hardening/Tempering (H13), Machining/EDM, Polishing, Nitriding/PVD, etc

Cost:

$$$$

Copper

Copper

Types:

Pure Cu (OFHC/Oxygen-Free), CuCrZr, GRCop-42 (AM), etc

Available Processes:

SLM, DMLS (Green-Laser Capable Systems)

Available Finishes:

Machining, Polishing, Nickel/Silver Plating, Passivation, Coating, Brazing/Soldering, etc

Cost:

$$$$

Surface Finishes We Offer for 3D Printing Parts

CEX offers a range of surface treatment methods for aesthetic, corrosion resistance, and wear resistance reasons. If you have other specific requirements, please feel free to contact us!

Why Choose Us

Wide Technology Coverage: SLA, DLP, SLS, MJF, FDM, and Metal PBF cover prototyping and production with reliable precision and detail.

Material Versatility: Broad range of plastics and metals, from ABS and nylon to aluminum, titanium, and stainless steel for every project.

Professional Quality Control: Dimensional inspection, material testing, and process checks guarantee consistent quality and accurate results.

Fast Turnaround: Instant quotations and flexible production schedules reduce lead times for prototypes, small batches, and pilot runs.

Global Cost Advantage: Competitive pricing up to 50% lower than Europe and the U.S., while fully meeting global industry standards.

End-to-End Support: From design review and prototyping to finishing and assembly, we provide dependable one-stop 3D printing solutions.

Quality Control and Sustainable Production at CEX

ISO 9001:2015 Certified Manufacturer

Quality inspection instruments we have equipped for 3D printing parts:
 
  • Coordinate Measuring Machines (CMM)
  • 3D Scanners
  • Surface Roughness Testers
 
Certified to ISO 9001, our quality system spans both plastics and metals produced with SLA, DLP, SLS, MJF, FDM, and metal PBF. From prototypes to production runs, we apply precise inspection, material testing, and full traceability.

Certified for Safe, Healthy, and Sustainable Production

CEX Casting is certified under ISO 14001:2015 and ISO 45001:2018, demonstrating our commitment to environmentally responsible and safe production. We optimize every stage of additive manufacturing by minimizing material waste, improving energy efficiency, and maintaining strict safety standards, ensuring that our production process delivers sustainable and high-quality results.

OHSMS Certificate & EMS Certificate

3D Printing Parts We Have Developed

3D Printing FAQ

What Is 3D Printing and How Does It Work?

Overview

3D printing, or additive manufacturing, creates parts layer by layer from a digital model, depositing or solidifying material only where needed. Unlike subtractive processes, it minimizes waste and allows designs impossible with conventional methods.

Key Steps

A CAD model is exported (e.g., STL/STEP) and sliced into thin layers. The printer builds the part by fusing or depositing material per layer, while supports and orientation are optimized during setup. Post-processing follows—support removal, surface finishing, and inspection—to achieve final quality.

Advantages

This workflow reduces tooling costs, speeds prototyping, and supports complex, lightweight designs. It allows rapid iteration and bridges the gap between prototype and production, especially in low-to-medium volume manufacturing.

When It Can

  • Small/medium volumes where molds or dies would be expensive or slow; AM avoids NRE and supports rapid ECOs.
  • Complex or lightweight geometries (conformal cooling, internal channels, lattices) impractical to machine or mold.
  • Customized or serialized parts (medical, aerospace, robotics) where each build may vary yet must remain traceable.

Constraints

  • Very high volumes favor molding/casting on unit cost and cycle time; AM throughput can be limiting.
  • Surface finish and tight GD&T may require secondary processes (machining, polishing, coating) and formal qualification.

Decision Frame

If volumes are modest, geometry is complex, and certification/finishing requirements can be met, AM is a strong replacement with faster iteration and lower risk.

The most common format is STL, which defines surface geometry and is supported by all printers. Engineering workflows often use STEP or IGES files for compatibility and design integrity, while OBJ is applied when color or texture information is needed. Regardless of format, files must be watertight, scaled correctly, and free from errors like gaps or inverted normals to ensure successful printing.

When It Is Possible

  • Plastics like PA12, PC, and TPU enable impact, wear, and flex testing; elastomers serve seals, hinges, and grips.
  • Metals (Ti-6Al-4V, AlSi10Mg, maraging steel) via SLM/DMLS achieve near-wrought density; heat treatment/HIP improves fatigue.

Limitations

  • Anisotropy from layer bonding can reduce Z-direction properties; orient builds to align with load paths and add fillets.
  • Harsh environments (UV, chemicals, heat) may require coatings or higher-grade materials; validate with representative coupons.

Real-World Use

Automotive brackets, aerospace fixtures, and surgical guides are routinely printed, tested to defined acceptance criteria, and iterated before production sign-off.

Overview

Repeatability depends on controlled environments, calibrated optics/extrusion, and consistent material lots. Modern machines and disciplined setups yield stable dimensions and properties across builds when recipes are locked.

Process Assurance

Fixed slicing profiles, monitored chamber temperatures, and documented powder/filament handling reduce variation. CMM/3D-scan checks, roughness measurements, and periodic machine calibrations verify that results stay within capability targets.

Outcome

With a maintained digital thread and traceable build reports, AM can deliver identical parts batch-to-batch, meeting automotive/aerospace expectations for consistency.

When It Works Best

  • Patient-specific medical models/implants and dental devices with unique anatomy.
  • Personalized consumer goods (wearables, cases) or serialized industrial parts with IDs/QRs.
  • Low-volume aerospace/robotics brackets where geometry changes per application without tooling delay.

Why It Is Possible

Shape is defined in CAD and sliced per build, so variations don’t require new molds. Parametric models and batch personalization scripts let many unique parts share one setup while preserving traceability.

Result

Mass customization becomes practical: customers get tailored geometry and branding with predictable lead time and cost because no tooling changeover is needed.

Automotive and Aerospace

Both leverage AM for rapid iterations, weight reduction, and part consolidation. Topology-optimized brackets and internal passages cut mass and assembly steps, improving performance and simplifying supply chains.

Medical

Patient-matched implants, surgical guides, and dental aligners capitalize on customization. Anatomical models improve surgical planning and reduce OR time, while porous surfaces aid osseointegration.

Consumer and Robotics

Short-run housings, ergonomic grips, and grippers with conformal features move from concept to test quickly. AM supports frequent design refreshes and SKU variation without tooling resets.

Direct Savings

  • No molds/dies for prototypes and small batches, eliminating NRE and shortening kickoff.
  • Less material waste than machining; consolidated parts reduce purchased items and BOM lines.

Indirect Savings

  • Faster design loops reduce engineering hours and schedule risk.
  • On-demand output lowers inventory, warehousing, and obsolescence; fewer fasteners and joints cut assembly labor.

Bottom Line

Even if unit price is higher than molding at scale, total project cost and time-to-market often improve significantly for low/medium volumes.

3D Printing

Costs come from machine time, material, support removal, finishing, and inspection. It excels for tens to hundreds of units, frequent design changes, or complex shapes that would demand multi-piece tooling or exotic machining.

Tooling Methods

Injection molding/die casting require high upfront tools but deliver very low unit cost at high volumes and fast cycle times. Design changes incur new tooling or rework, extending schedule and cost.

Evaluation

Run a break-even curve (tooling amortization vs. AM unit cost) at target volumes and timelines. Below the cross-over, AM wins on cash and speed; beyond it, tooling dominates on unit economics.

Hybrid Approach

Yes. Print for complexity, then machine for precision: AM creates internal channels and organic forms; CNC finishes datums, bores, and threads to tight tolerances. Printed patterns/cores can also accelerate casting.

Applications

Conformal-cooling mold inserts are printed and then ground/reamed; sheet-metal or molded subassemblies integrate printed brackets or manifolds; castings gain printed sand cores for complex passages.

Benefit

This pairing captures AM’s design freedom and conventional manufacturing’s accuracy/throughput, lowering risk and cost while meeting stringent specifications.

Material Usage

Additive deposits only the required material, cutting scrap versus subtractive routes; many powders/filaments have defined reuse ratios that further reduce waste when managed correctly.

Environmental Benefits

Lightweight parts reduce in-use energy (vehicles, aircraft). Local, on-demand production trims overproduction, warehousing, and transport emissions, supporting shorter and more resilient supply chains.

Consideration

Net impact depends on energy mix, recycling policies, and design for disassembly/repair. A simple LCA across material, production, transport, and use phases helps quantify sustainability credibly.

Non-Destructive Tests

  • CT scanning reveals porosity, lack-of-fusion, inclusions, and internal geometry deviations; 2D X-ray provides quick screening.
  • Ultrasonic inspection evaluates bonding and detects defects in metals where CT throughput is limited.

Destructive Tests

  • Tensile and hardness tests confirm mechanical properties; density checks (Archimedes) assess consolidation.
  • Metallography exposes microstructure, grain features, and fusion quality to correlate process settings with properties.

Application

Choose acceptance criteria (porosity %, flaw size) and an AQL sampling plan matched to risk. Record results in inspection reports for traceability in aerospace, medical, or automotive programs.

Geometry

Avoid unsupported overhangs beyond ~45° without removable access; include drain/escape holes for powder/resin; add fillets to soften stress risers; maintain process-appropriate wall/feature sizes to prevent warping or weak features.

Tolerance and Finishing

Design holes/threads or sealing faces for post-machining when tight GD&T applies. Reserve accessible datums and machining stock; plan cosmetic faces away from supports to reduce finishing effort.

Orientation

Orient parts to align strength with loads, minimize support on critical surfaces, and manage thermal gradients. Good orientation reduces distortion, improves surface quality, and shortens finishing time.

Process Stability

We reuse the same CAD revision, slicing recipe, and machine parameters from the qualified build. Environmental setpoints and material reuse ratios are controlled to keep outputs consistent.

Traceability

Build reports log machine IDs, material lots, and process settings; inspection data (CMM/scan) ties to each lot. Any design or process change triggers revision control and, if needed, re-qualification.

Customer Benefit

Repeat orders match the original in geometry and performance, arriving with consistent markings/COCs and auditable records to satisfy regulated industries.

Technology Trends

Multi-laser systems, faster recoaters, and automated powder/part handling are boosting throughput. In-situ monitoring and closed-loop control are improving first-time-right quality for production use.

Material Advances

High-temp polymers, fiber-reinforced composites, corrosion-resistant alloys, and medical-grade materials are expanding use cases. Standards and process qualifications are maturing across industries.

Industry Impact

Additive manufacturing is moving from prototyping to qualified serial production with digital inventories and distributed manufacturing, shortening supply chains and enabling responsive, resilient operations.

Send Your Inquiry Today

Contact Form Demo (#3)
Feel free to contact CEX for any questions and requests