Custom 3D Printed Parts – Industrial-Grade Rapid Manufacturing from CAD to Component
When your project demands complex geometries, tight lead times, or low-volume production runs that conventional injection molding cannot economically serve, Custom 3D Printed Parts provide the definitive engineering solution. Xiamen Best Seal's additive manufacturing division operates multiple industrial-grade printing platforms - FDM, SLA, SLS, and MJF - enabling us to produce precision plastic and polymer components across a vast material spectrum, from cost-effective PLA and PETG prototypes to mission-critical PEEK and PA12 Nylon end-use parts. Whether you require a single functional prototype or a production batch of 10,000 identical components, we deliver engineered-to-spec parts directly from your uploaded CAD file.
Every custom part is manufactured under ISO 9001:2015 certified quality management. Our engineering team reviews each submitted design for printability, wall thickness, support strategy, and post-processing requirements before production begins - eliminating costly revision cycles. Dimensional inspection reports and full material traceability documents are available for all production orders, ensuring your procurement and quality teams have the verification data they need for incoming inspection. RoHS 2.0 and REACH SVHC compliant material options are stocked across all major technology platforms.
✵ ˚ : · ✬ Four Industrial Printing Technologies ✬ · : ˚ ✶
Each additive manufacturing technology delivers a different balance of accuracy, surface finish, material range, and cost. Our team will recommend the optimal platform for your specific application:
⚙️ FDM – Fused Deposition Modeling
The most cost-effective technology for large structural parts, jigs, fixtures, and functional prototypes. Ideal for engineering polymers requiring high-temperature or chemical resistance.
Tolerance: ± 0.3mm | Best For: Large parts, strong prototypes
🔬 SLA – Stereolithography
Photopolymer resin curing delivers the finest surface finish and highest dimensional accuracy of all technologies. The standard choice for visual display models, optical components, and micro-feature parts.
Tolerance: ± 0.1mm | Best For: Fine detail, smooth finish
🌡️ SLS – Selective Laser Sintering
Laser-sintered nylon powder produces support-free, fully dense parts with excellent mechanical isotropy. The preferred platform for complex assemblies, living hinges, and functional end-use production parts.
Tolerance: ± 0.2mm | Best For: Complex geometry, functional parts
🚀 MJF – Multi Jet Fusion
HP's industrial MJF platform offers superior mechanical properties vs. SLS at higher throughput speeds. Delivers consistent grey or black PA12 parts with excellent surface texture and watertight walls for end-use applications.
Tolerance: ± 0.1mm | Best For: High-volume, production-grade PA12
Complete Industrial Material Portfolio
1. Standard Engineering Polymers
| Material | Technology | Key Mechanical Properties | Typical Applications |
|---|---|---|---|
| PLA | FDM | Good rigidity, low cost, biodegradable; limited heat resistance (<60°C) | Visual prototypes, display models, non-load-bearing fixtures |
| PETG | FDM | Excellent impact resistance, food-safe grades, moisture resistant; up to 80°C | Functional enclosures, food-contact housings, waterproof containers |
| ASA | FDM | Superior UV stability, weathering resistance, and outdoor durability vs. ABS | Outdoor electrical enclosures, automotive exterior parts, signage |
| ABS | FDM | Tough, machinable, good impact resistance; excellent post-processing (sanding, painting) | Consumer electronics housings, automotive interior components, jigs |
| TPU | FDM / SLS | Flexible, high elasticity, excellent abrasion resistance; 85–98 Shore A | Gaskets, vibration dampers, cable sheaths, wearable device parts |
| Nylon PA12 | SLS / MJF | High fatigue resistance, excellent chemical resistance, low moisture absorption | Snap-fit assemblies, fluid fittings, functional housings, gear parts |
2. High-Performance & Specialty Polymers
| Material | Technology | Key Mechanical Properties | Typical Applications |
|---|---|---|---|
| PC (Polycarbonate) | FDM | Exceptional impact strength, optical clarity, heat resistance up to 110°C | Transparent panels, structural brackets, medical device housings |
| PA6-CF / PA12-CF | FDM / SLS | Carbon-fiber reinforced nylon; extremely high stiffness-to-weight ratio | Lightweight structural parts, drone frames, tooling inserts |
| PEEK | FDM (High-Temp) | Ultimate heat resistance (up to 250°C), chemical inertness, biocompatible; best mechanical performance of all printable polymers | Aerospace brackets, surgical instruments, chemical pump components, semiconductor fixtures |
| PEI (ULTEM®) | FDM | High strength, flame retardant (UL94 V-0), FST (Flame/Smoke/Toxicity) compliant | Aircraft cabin interiors, medical sterilization trays, electrical connectors |
| PP (Polypropylene) | SLS | Excellent chemical resistance, living hinge fatigue life, semi-flexible | Chemical-resistant containers, snap-fit lids, lab consumables |
| Resin (Standard / Tough / Castable) | SLA | Highest surface resolution; tough grades mimic ABS; castable grades for lost-wax metal casting | Micro-valve components, jewelry masters, dental models, optical housings |
Technology Selection Guide
Choosing the wrong printing technology is the most common cause of failed prototypes and wasted budgets. Use this quick reference to identify the right platform for your project:
| Your Requirement | FDM | SLA | SLS | MJF |
|---|---|---|---|---|
| Lowest unit cost | ✔ Best | – | – | – |
| Finest surface finish | – | ✔ Best | – | – |
| Complex internal channels / no supports | – | – | ✔ Best | ✔ Good |
| High-volume production batches | – | – | ✔ Good | ✔ Best |
| Extreme heat resistance (200°C+) | ✔ PEEK / PEI | – | – | – |
| Flexible / rubber-like parts | ✔ TPU | – | ✔ Best (TPU) | – |
| Fastest turnaround | ✔ Best | – | – | – |
Post-Processing & Surface Finishing Options
Custom RAL/Pantone color matching, primer coating, and multi-layer spray finishing for visual display models and consumer-facing parts.
Chemical vapor treatment for FDM ABS parts - produces an injection-molded-level surface finish without manual sanding, sealing the layer lines for watertight performance.
Brass or stainless steel threaded inserts (M2 to M12) ultrasonically or thermally pressed into printed bosses for reliable, production-grade fastening interfaces.
Hybrid additive + subtractive manufacturing: 3D print the near-net shape, then CNC mill critical mating faces, bores, and threads to achieve true engineering tolerances (± 0.02mm).
Conductive coating followed by nickel, chrome, or copper electroplating to add a metallic finish and EMI shielding capability to SLA or ABS FDM parts.
SLS/MJF PA12 parts can be dyed in multiple colors (black standard; custom on request) and tumble-polished to reduce surface roughness from Ra 10–14 µm to Ra 3–5 µm.
✧ Engineering-Grade Quality Assurance ✧
• DFM (Design for Manufacturability) review on every submitted file before production begins.
• CMM or caliper-based dimensional inspection reports available for production orders.
• Full material traceability - raw material certificates and batch records provided on request.
• ISO 9001:2015 certified quality management system governing all additive manufacturing operations.
Packaging & Shipping
📦 Component-Safe Protective Packaging
All custom 3D printed components are individually wrapped and cushioned to protect fine features, thin walls, and precision surfaces from transit damage.
| Category | Details |
|---|---|
| Individual Wrapping | Anti-static bubble wrap for each component (prevents ESD and surface scratching) |
| Outer Packaging | Custom foam-insert export cartons sized to order for zero part movement in transit |
| Bulk Orders | Compartment-separated trays within reinforced master cartons; palletized for sea freight |
| Documentation Included: Packing list, material certificates, dimensional inspection report, and RoHS/REACH compliance declaration per shipment. | |
🚚 Global Freight & Trade
| Method | Details |
|---|---|
| Express Services | DHL / FedEx / UPS (3–5 business days worldwide) |
| Freight Options | Air Freight (5–7 days) | Sea Freight (25–35 days) |
| Trade Terms | EXW, FOB, CIF, DDP / DDU available for all major regions |
| Dispatch Port | Xiamen International Port, China |
Compliance & Quality Certifications
🏆 Quality Certifications: ISO 9001:2015 Certified Quality Management. Biocompatible grades (USP Class VI / ISO 10993) available for medical applications.
⚙️ Compliance Standards: RoHS 2.0, REACH SVHC Compliant material stocks. UL94 V-0 flame-retardant materials (PEI / ULTEM®) available. FDA-compliant PETG and PP food-contact grades stocked.
Custom 3D Printing FAQ
❓ What file formats do you accept for quoting and production?
We accept all standard CAD formats including STEP (.stp), IGES (.igs), STL (.stl), OBJ (.obj), and SolidWorks (.sldprt). STEP files are strongly preferred for engineering-grade orders as they carry full dimensional data and allow our team to verify geometry before slicing. For rapid quoting, STL is also accepted. Simply upload your file to our RFQ portal or email it directly to our engineering team.
❓ What is the maximum build size you can print in a single piece?
Build envelopes vary by technology: FDM up to 500 × 500 × 500mm; SLA up to 300 × 335 × 200mm; SLS/MJF up to 380 × 284 × 380mm. For parts exceeding these dimensions, we offer precision-bonded multi-section assembly, which is invisible in the final component and maintains full structural integrity.
❓ Can you print in PEEK for chemical pump components and high-temperature fixtures?
Yes. We operate dedicated high-temperature FDM systems (chamber temperature up to 200°C) capable of processing PEEK, PEI (ULTEM® 9085 and 1010), and PEKK. These materials require specialized print profiles to prevent delamination and achieve the crystalline structure needed for maximum mechanical and chemical performance. All PEEK parts include material certificates from the polymer manufacturer.
✵ ˚ : · ✬ EXPLORE OUR CUSTOM MANUFACTURING SOLUTIONS ✬ · : ˚ ✶
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