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3D Printing Services
SLM / DMLS
Selective Laser Melting (SLM / DMLS) utilizes high-precision fiber lasers to fully melt fine metal powders into fully dense, high-strength functional metal components for aerospace, medical, and motorsport applications.✓
ISO 9001:2015 Certified✓
98% On-Time Delivery✓
100,000+ Parts Made
Molding? The Complete GuideJuly 24, 2026
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What makes Sango different from other manufacturing platforms or
intermediaries?
intermediaries?
How fast can Sango deliver?
What surface finishes and colors are available?
Do you offer material certificates or test reports?
Do your materials and processes comply with RoHS, REACH, or other EU
standards?
standards?
What if my parts do not meet the required specifications
frequentlyaskedquestions?
Pros and Cons of
SLM Metal 3D Printing
SLM Metal 3D Printing
Fully dense metal parts (>99.7%) with mechanical properties comparable to forged billet, not cast, metal.
Lattice structures and conformal cooling channels that are impossible to machine or cast can be printed directly.
Aerospace and medical-grade alloys (Ti6Al4V, Inconel 718, CoCr) are available with full material traceability.
Pros of SLM Metal Printing
Support removal, powder recovery and stress-relief heat treatment add process steps most other methods skip.
Highest cost per part of any process here, driven by machine time, inert gas consumption and powder handling.
Residual thermal stress requires careful support and orientation planning to prevent warping during the build.
Metal Printing
Design Guide
Max dimension250 × 250 × 400
Layer Thickness0.02 – 0.06mm
TolerancesISO 2768-C
Wall Thickness
Min Feature Size
Surface Finish Options
0.5 mm
0.5 mmBrushed Finish, Satin, Shot Peening, Electropolishing, Polishing, CNC, AnodizingDesign advice
1/ Supports as Heat SinksDesign parts with overhang angles greater than 45° to minimize supports, and ensure thick sections are anchored to the build plate to prevent warping.
2/ Self-Supporting Internal ChannelsDesign parts with overhang angles greater than 45° to minimize supports, and ensure thick sections are anchored to the build plate to prevent warping.
Titanium Ti6Al4V
Grey
Color
1 day
Price
About 4 business days
Lead Time
Ti6Al4V is the workhorse aerospace and medical titanium alloy, printed to >99.7% density with a strength-to-weight ratio unmatched by aluminum or steel, and biocompatibility suited to implantable devices.
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Titanium Ti6Al4VAluminum AlSi10MgStainless Steel 316LInconel 718Cobalt Chrome (CoCr)
Printing MaterialsWe stock certified aerospace and medical grade metal powders for SLM printing, including Titanium Ti6Al4V, Aluminum AlSi10Mg, Stainless Steel 316L / 17-4PH, Inconel 718, and Cobalt Chrome.
With 30 years of machining experience, we provide more than large part CNC machining. We manage the complete manufacturing process through one accountable team, giving you consistent quality, clearer communication and fewer suppliers to coordinate.Why Sango for Enclosure ManufacturingEvery project is reviewed according to its size, weight, material, geometry and critical requirements. Our engineers coordinate the appropriate equipment, machining sequence, supporting processes and inspection plan to deliver a finished component that meets your drawing and arrives ready for its next stage.
700+Sets of Machine
120+Countries Shipped
20k+Customers Served
Start your project with our rapid 3D printing service. Ideal for creating detailed prototypes & custom parts quickly, we use advanced technologies to deliver high-quality, high-resolution prints with precise tolerances. 3D Printing/01
For large-scale production needs, our injection molding service is the optimal choice. It is capable of producing high volumes of parts efficiently, maintaining consistent quality and precision. Injection Molding/03
Sango Online 3D Printing Service Solutions
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Surface Roughness (Ra)Finishing ProcessDimensional Thickness ChangePrimary Application / Benefit
As-Machined (Standard)
Ra 1.6 – 3.2 µm0 µm
Standard structural and internal mechanical components
Bead Blasting
Electroless Nickel Plating
Ra 1.6 – 3.2 µmMinimal (<2 µm)Uniform matte cosmetic finish, eliminates tool marks
Ra 0.4 – 1.2 µm
+5 to +25 µm
(completely uniform)
(completely uniform)
Uniform coating for complex internal cavity geometries
Ra 0.8 – 1.6 µm
+5 to +15 µm
(half penetrates metal)
(half penetrates metal)
Corrosion resistance, decorative color options
Unchanged
0 µm
(microscopic conversion layer)
(microscopic conversion layer)
Corrosion resistance without changing part dimensions
Anodizing Type III (Hardcoat)
Precision Polishing (SPI A-1)
Powder Coating
Ra 0.8 – 2.0 µm+25 to +50 µm
Extreme wear resistance, high hardness for heavy duty parts
Ra 0.012 – 0.05 µm
-1 to -5 µm removal
Optical lenses, mold cavities, high-cosmetic panels
Smooth to Textured
+50 to +120 µm
Heavy-duty outdoor and cosmetic enclosure protection
Anodizing Type II
Passivation / Chem Film
3D Printing CapabilitiesWe provide a comprehensive overview of each rapid 3D printing process’s unique standards, aiding in informed decisions for your printing needs.
Automotive
Aerospace
Medical
Consumer Products
Robotics
Automation
3D Printing Service
for Various Industries3D printing is ideal for precision assembly components (via as-machined post-processing) and high-aesthetic visual parts (via painting/polishing). We provide industrial 3D printing services tailored to the requirements of regulated and high-performance industries.Our experience spans automotive, aerospace, and medical applications—from prototyping to low-volume production.
for Various Industries3D printing is ideal for precision assembly components (via as-machined post-processing) and high-aesthetic visual parts (via painting/polishing). We provide industrial 3D printing services tailored to the requirements of regulated and high-performance industries.Our experience spans automotive, aerospace, and medical applications—from prototyping to low-volume production.
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Our fiber lasers fully melt metal powder to >99.7% density, holding tolerances up to ±0.1 mm with full material traceability on every build./01
High Quality Parts
High Quality Parts
No casting tooling or forging dies required. Upload your CAD file for an instant quote on titanium, Inconel or steel metal parts./02
Fast Lead Time
Fast Lead Time
Our engineering team reviews support strategy, orientation and residual stress risk on every metal build, giving you DFM feedback before your SLM part goes to print./03
Engineering-Driven Support
Engineering-Driven Support
Why Choose UsSango is a trusted provider of industrial 3D printing services, helping engineers and manufacturers produce high-quality parts with precision, speed, and reliability.
What’s SLM Metal 3D Printing?SLM (Selective Laser Melting, also known as Direct Metal Laser Sintering) is an advanced metal additive manufacturing process. It fully melts metal alloys layer by layer, achieving >99.7% density and mechanical properties comparable to forged billet metals, enabling lightweight lattice structures and conformal cooling channels.
ISO-certified manufacturing system
✓
Material traceability
✓
Batch consistency for production runs
✓
In-process quality control
✓
Dimensional inspection before shipment
✓
Tolerances up to ±0.1 mm
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Final inspection before delivery
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