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Trendy delivers reliable and industry‑grade manufacturing performance across a wide range of supported parameters, ensuring stable quality,
precise tolerances, and consistent results for both prototypes and production parts.
| Item | SLA | MJF | SLS | SLM | Large‑Format FDM |
| Min. Wall Thickness | 0.6 mm for unsupported walls, 0.4 mm for supported walls on both sides | At least 1 mm thick; avoid overly thick walls | From 0.7 mm (PA 12) to 2.0 mm (carbon‑filled polyamide) | 0.8 mm | 1.2 mm minimum functional wall; 2.0 mm recommended for large‑size structural parts |
| Layer Height | 25 µm to 100 µm | Around 80 µm | 100‑120 microns | 30‑50 μm | 0.15 mm‑0.60 mm, adjustable by nozzle size |
| Max. Build Size | 1400×700×500 mm | 264×343×348 mm | 380×280×380 mm | 650×500×300 mm | 3000 × 2000 × 1800 mm, |
| Dimension Tolerance | ±0.2 mm (For >100 mm, apply 0.15%) | ±0.2 mm (For >100 mm, apply 0.25%) | ±0.3 mm (For >100 mm, apply 0.35%) | ±0.2 mm (For >100 mm, apply 0.25%) | ±0.3 mm (For >200 mm, apply 0.3%) |
| Standard Lead Time | 4 business days | 5 business days | 6 business days | 6 business days | 5‑7 business days |
| Surface Finish (Ra) | Normal: 3.2 μm | 3.2‑6.3 μm | 3.2‑6.3 μm | 3.2‑6.3 μm | 12.5‑25 μm as‑printed; 3.2‑6.3 μm after post‑processing & polishing |
| After polishing: 1.6 μm | (No secondary processing for nylon) | (Polishing / grinding available) | (Polishing / grinding available) |
The right surface finish can improve appearance, corrosion resistance, wear resistance and service life.
⚙
Anodizing
Improve appearance and basic protection for aluminum parts
🎨
Powder Coating
Provide good appearance and surface protection for metal parts
💨
Sandblasting
Improve surface texture and prepare for further finishing
📏
Brushing
Create linear texture for a refined and consistent look
✨
Polishing
Enhance smoothness and appearance for metal surfaces
💧
Electroplating
Improve appearance or function with a metallic coating
⬛
Black Oxide
Create a black surface
and provide basic protection
🛡️
Zinc Plating
Provide basic corrosion
protection for steel parts
🪙
Nickel Plating
Enhance appearance
and protection for metal parts
✅
Passivation
Improve surface condition
and corrosion resistance for stainless steel
🖌️
Painting
Add color and protection
for a wide range of applications
🔥
Heat Treatment
Improve material performance
based on usage requirements
We provide full‑spectrum multi‑process metal additive manufacturing solutions, covering SLM selective laser melting and mainstream metal printing technologies.
Our versatile metal printing capabilities support a wide range of metal alloys, including stainless steel, aluminum, titanium, and high‑strength nickel alloys. By integrating multiple metal printing processes, we flexibly balance high precision, complex internal structures, mechanical strength, surface quality, and production efficiency.
From high‑precision functional prototypes to low‑volume industrial metal parts, we deliver stable, high‑quality metal components for automotive, aerospace, medical, machinery, and consumer electronics industries.
| Material Type | Stainless Steel | Stainless Steel | Mold Steel | Titanium Alloy | Aluminum Alloy | Aluminum Alloy | Nickel‑base Superalloy |
| Printing Material | 316L | 17‑4PH | 18Ni300 | TC4 | AlSi10Mg | 6061 | GH4169 |
| Powder Properties | |||||||
| Grain Size | 15‑53 μm | 15‑53 μm | 15‑53 μm | 15‑53 μm | 15‑53 μm | 15‑53 μm | 15‑53 μm |
| Powder Shape | Spherical | Spherical | Spherical | Spherical | Spherical | Spherical | Spherical |
| Flowability | 40 s | 22 s | 40 s | 45 s | 150 s | 120 s | 45 s |
| Apparent Density | 3.9 g/cm³ | 4.0 g/cm³ | 4.3 g/cm³ | 2.5 g/cm³ | 1.45 g/cm³ | 1.07 g/cm³ | 4.4 g/cm³ |
| As‑built Performance | |||||||
| Relative Density | ≥99 % | ≥99 % | ≥99 % | ≥99 % | ≥99 % | ≥98 % | ≥99 % |
| Tensile Strength | ≥560 MPa | ≥1100 MPa | ≥1090 MPa | ≥600 MPa | ≥330 MPa | ≥280 MPa | ≥980 MPa |
| Hardness | 11‑12 HRC | 13‑16 HRC | 30‑36 HRC | 30‑35 HRC | 60‑75 HB | 90‑95 HB | 283 HB |
| Yield Strength | ≥560 MPa | ≥1050 MPa | ≥1000 MPa | ≥540 MPa | ≥245 MPa | ≥230 MPa | ≥700 MPa |
| Elongation | ≥25 % | ≥15 % | ≥10 % | ≥5 % | ≥6 % | ≥8 % | ≥13 % |
| Heat‑treated Performance | |||||||
| Tensile Strength | ≥560 MPa | ≥1250 MPa | ≥1930 MPa | ≥1150 MPa | ≥310 MPa | ≥290 MPa | ≥1450 MPa |
| Yield Strength | ≥400 MPa | ≥1150 MPa | ≥1890 MPa | ≥1200 MPa | ≥200 MPa | ≥250 MPa | ≥1000 MPa |
| Hardness | 13‑15 HRC | 32‑42 HRC | 48‑52 HRC | 35‑40 HRC | 90‑120 HB | 95‑120 HB | 455 HB |
| Elongation | ≥32 % | ≥20 % | ≥4 % | ≥12 % | ≥8 % | ≥14 % | ≥20 % |
| Elastic Modulus | 180 GPa | 200 GPa | 160 GPa | 100‑120 GPa | 70 GPa | 70 GPa | 140‑180 GPa |
| Coefficient of Thermal Expansion | ‑ | 6.0 × 10⁻⁶ /°F | 11.2 × 10⁻⁶ /℃ | ‑ | ‑ | ‑ | ‑ |
| Poisson’s Ratio | ‑ | ‑ | ‑ | ‑ | 0.25‑0.30 | 0.32‑0.36 | ‑ |
| Thermal Conductivity | ‑ | 17.2 W/(m·k)@100℃ | 25‑30 W/(m·K) | ‑ | ‑ | ‑ | ‑ |
| 23 W/(m·k)@500℃ | |||||||
| Electrical Resistivity | ‑ | 38.6 Microhm‑in | ‑ | ‑ | ‑ | ‑ | ‑ |
| Electrical Conductivity | ‑ | 1.4‑1.5 × 10⁶ S/m | ‑ | ‑ | ‑ | ‑ | ‑ |
| Melting Point | 1450 ℃ | 1500 ℃ | 1350 ℃ | 1700 ℃ | 700 ℃ | 700 ℃ | 1300 ℃ |
| Material Grade | Alloy Name | Key Application Notes | ||
| AlSi10Mg | Aluminum‑Silicon Alloy | Light‑weight, high strength‑to‑weight ratio; ideal for automotive & aerospace prototypes | ||
| 316L | 316L Stainless Steel | Excellent corrosion resistance; suitable for machinery, marine and medical parts | ||
| 304L | 304L Stainless Steel | Good ductility, general‑purpose structural components | ||
| Ti6Al4V | Titanium Alloy | High strength‑to‑weight, biocompatible; for medical implant and aerospace parts | ||
| 17‑4PH | 17‑4PH Stainless Steel | High‑hardness precipitation hardening steel; mechanical‑load‑bearing functional parts | ||
| Inconel 718 | Nickel‑Based Superalloy | High‑temperature resistance; for high‑heat aerospace & industrial equipment | ||
| CoCr | Cobalt‑Chromium Alloy | High‑wear‑resistant, biocompatible; medical & dental components | ||
Get high-precision, fully dense metal parts with outstanding mechanical strength. Our industrial SLM selective laser melting service manufactures durable metal components for harsh working environments, supporting complex internal structures, lightweight lattice designs and high-performance end-use metal parts.
Tolerances as fine as ±0.2 mm.
ISO 9001:2015,5, IATF 16949:2016 certified
Lead time as fast as 1 day
Your success depends on reliable parts. Our CNC machining services provide precision machining with a 90% first-pass yield. You can get quality CNC machined parts for both prototypes and production runs.

Trendy owns 10 in‑house production lines, offering complete one‑stop DPI process services including 3D printing, CNC, wire‑EDM, turn‑milling, mold making, spark erosion, polishing, manual assembly, injection molding, silk‑screen printing and packaging.
With in‑house spraying & assembly, we provide multi‑disciplinary fast supply. Our 3D printing validates ID appearance and MD structure. Cross‑process integration cuts your costs and accelerates project progress.
10 in‑house production lines for full‑chain manufacturing
One‑stop DPI service: 3D Printing, CNC Machining, Wire‑EDM, Turn‑Milling, Mold Fabrication, Spark Erosion, Polishing, Manual Assembly, Injection Molding, Silk‑Screen Printing, Packaging
In‑house spraying and assembly
3D printing for ID appearance validation & MD structural verification
Multi‑disciplinary process synergy to reduce costs & shorten lead‑time
Trendy is a trusted provider of CNC turning services, serving customers across a wide range of industries. Equipped with advanced CNC turning capabilities and a team of seasoned engineers, we deliver reliable solutions covering rapid prototyping all the way to high‑volume, production‑grade CNC‑turned components.
Multi‑axis & 5‑axis CNC capability for both simple turned parts and complex 3D milled components.
Full in‑house inspection ensures tight tolerance, smooth surface finish and stable consistency.
Free DFM review and technical consultation to reduce machining risks and improve manufacturability.
Quick quotation, streamlined workflow, urgent prototype support and stable mass‑production supply.
Smart process planning to reduce unnecessary cost while maintaining high quality.
Integrated machining + surface finishing (anodizing, sandblasting, plating, etc.) for assembly‑ready parts.



Send us your drawings, sample photos or application details. We’ll help you evaluate the best material based on structure, process, finish, environment and target cost.
Large-format 3D printing is ideal for non-standard custom parts, prototypes, tooling, exhibition props, and repeated R&D testing.
One of the wrold’s leading one-top mould solutions providers and customized metal and plastic precision parts to production services
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