Home >Services> 3D Printing > Stereolithography (SLA) 3D Printing Service
CUSTOM ONLINE 3D PRINTING SERVICE
Selective Laser Sintering (SLS) 3D Printing Service
Print your SLS parts with fast turnaround and wide variety of Nylon materials as fast as 2-3 days!
Upload CDA.Get Free DFM Review
STEP, STL, IGES, OBJ and more. We’ll route your part to the right process before production starts.
Instant Pricing • No MOQ • Secure Upload • 10% Off First Order
Overview: How SLS 3D Printing Works?
The Basics of SLS 3D Printing：
Selective laser sintering (SLS) is an additive manufacturing technique that uses a laser as the power source to sinter powdered material (typically nylon or polyamide), aiming the laser automatically at points in space defined by a 3D model, binding the material together to create a solid structure. It is similar to selective laser melting; the two are instantiations of the same concept but differ in technical details.
Why Choose SLS 3D Printing With Unionfab
- Unionfab has imported EOS equipment, as well as domestic nylon machines and materials with high cost performance to meet the needs of different customers.
- Unionfab can provide customers with eight SLS 3D Printing materials, including SLS Nylon 11 (Black), SLS Nylon 11 (White), SLS Nylon 12 (White), SLS Nylon 12(Black), Nylon 12 Glass-Filled (Black), Nylon 12 Glass-Filled (Offwhite), PA6GF and TPU. At the same time, we jointly develop unique materials for aerospace, medical and other applications with partners to help our customers expand the application scope and depth of additive manufacturing.
- Unionfab has a professional team of engineers and production capacity to provide more diversified, efficient and cost-effective SLS 3D printing solutions for different application scenarios of industrial customers.
Features of SLS 3D Printing
Durability
Nylon is a durable material with great impact strength, medium flexibility, and high resistance to environmental factors.
Parts Production
SLS is capable of producing end-use parts on-demand, increasing throughput.
Scalability
SLS can make a single part or component as easily as dozens of production pieces.
Material Limits
You can expect more SLS materials coming soon!
Rapid Turnaround
Parts can typically be shipped in 3-4 days, allowing for faster design iterations and speed to market.
Complex Geometry
Geometries can be built more easily due to the 3D printing process, adding complexity without additional cost.
Precision
We use the latest generation of SLS technologies to meet tolerances of +/- 0.010” or +/- 0.002” per inch, whichever is greater. Please see our Manufacturing Standards for more details.
Scale Effect
The unit cost and lead time will not be reduced as much as casted or molded parts.
SLS Design Guidelines
| US | Metric | |
| PA12 GB | 14 in. x 14 in. x 16 in. | 350mm x 305mm x 400mm |
| PA12 | 14 in. x 14 in. x 16 in. | 350mm x 305mm x 400mm |
| US | Metric | |
| Layer Thickness | 0.004 in. | 0.1016mm |
| US | Metric | |
| Minimum Wall Thickness | 0.030 in. | 0.762mm |
SLS Tolerances
±0.3% (with a lower limit of ±0.3 mm)
Standard: Bead blast to remove all powder, which leaves a consistent overall texture.
Custom: Secondary options include a primer or dye color that can be applied as well as taps and inserts.
SLS Available Materials
TPU
As a strong, wear-resistant and elastic substance, TPU offers new application opportunities. Thanks to its convenient processing window and full recyclability of the powder cake, it is a natural choice for series production.
SLS
350x350x400mm
White
Nylon 12(White)
Balancing strength and detail, Nylon 12 is a highly capable material for both functional prototyping and end-use production of complex assemblies and durable parts with high environmental stability.
SLS
380x380x420mm
White
Nylon 12(Black)
Balancing strength and detail, SLS Nylon 12 is a highly capable material for both functional prototyping and end-use production of complex assemblies and durable parts with high environmental stability.
SLS
380x380x420mm
Black
Nylon 12Glass-filled (Off White)
The surface of Nylon 12 Glass-filled(Off White) is white and slightly granular and porous. Nylon Glass-Filled is more durable and resistant than Nylon PA12. It gives you great freedom in your designs – allowing for both complex and enclosed volumes.
SLS
645x325x520mm
Off White
Nylon 12 Glass-filled(Black)
The surface of Nylon 12 Glass-filled(Black) is black and slightly granular and porous. Nylon Glass-filled is more durable and resistant than Nylon PA12. It gives you great freedom in your designs – allowing for both complex and inclosed volumes.
SLS
380x380x420mm
Black
Nylon 6 Glass-filled(Black)
Nylon 6 Glass-filled(Black) is a glass fiber reinforced PA6 (Nylon 6) powder material. Nylon 6 Glass-filled(Black) has excellent rigidity, heat resistance, and corrosion resistance. It’s suitable for functional parts verification, small-scale production.
SLS
380x380x420mm
Black
Nylon 11(Black)
Nylon 11(Black) is a high-performance material known for its exceptional impact resistance, excellent toughness, low water absorption, and good oil resistance. These properties make it ideal for demanding applications
SLS
310x240x190mm
Black
Nylon 12 Pro(Black)
Nylon 12 Pro(Black) is improved based on Evonik’s basic materials, match with the update printing parameters. Compared with Nylon 12(White), it has better details, better toughness, small holes and small details (0.4-0.6mm) can also be printed well.
SLS
360x360x530mm
Black
Nylon 12-FR
Nylon 12-FR is a specially modified flame-retardant thermoplastic polyamide material, featuring excellent mechanical properties, dimensional stability, and outstanding flame retardancy. Modified with halogen-free, eco-friendly flame retardants, the material meets international fire safety standards such as UL 94 V-0.
SLS
310x310x570mm
White
Available Finishes
Default：
SLS parts are de-powdered with a sandblasting process and manual powder removal. Internal holes may be drilled to size if accessible. The finish is white matte (fine sugar-cube).
Other：
・Dyeing
・Vapor Smoothing
・Media Tumbled
・Nickel Plating
* Want to custom the finish you need? Request in the quoting tool, we’ll evaluate your finishes on a case-by-case basis.
SLS 3D Printing Applications
Prototypes
With SLS, the prototype can be made using nylon material with great functionality. Fast turnaround makes it a good choice for functional prototyping.
Customized Products
The speed and versatility of SLS let variable production of customized gifts/samples for different users become possible.
Batched Products
SLS can be applied to make high-quality small batched products from 1-10,000 units, ideal for small businesses that wishes to test the market’s reaction to thier newly developed products.
The Production Capacity of Unionfab
SLS 3D Printing
for Various Industries
Automotive
Medical
Industrial
Robotics
Art Models
