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SLS 3D Printing Services In China

Selective laser sintering (SLS) is a powder bed 3D printing technology that produces highly accurate and durable parts capable of being used directly in end-use, low-volume production.

Maximum Build Size:
400 × 400 × 450 mm
Standard Lead Time:
2-3 business days
Dimensional Accuracy:
± 0.5% with a Lower limit of ± 0.15 mm (± 0.006")
Layer Height:
25-100 um

150+

Experienced Engineers

200+

Up-to-date Machines

5000+

Satisfied customers

Advantages and drawbacks of SLS 3D printing

SLS (Selective Laser Sintering) is the favourite 3D Printing technique for industrial applications. SLS works by using a high-powered laser to fuse together polymer powder particles. Through SLS 3D Printing techniques, the unused powder provides structural support for the SLS part being created during the printing process and so removes any need for support structures to be created around the part.

ADVANTAGES

No support material is needed

Excellent layer adhesion

Fast printing process for functional, durable prototypes or end-use parts

Materials have good mechanical properties

DRAWBACKS

As-printed parts are rough to the touch due to surface porosity

SLS is prone to shrinkage and warping, especially on long, thin parts

3D Printing Materials

PA620-MF

PA614-GS

PA12 White

Polypropylene Natural

TPU 70-A

PA620-MF

This 25% mineral-filled nylon offers the highest stiffness among Protolabs’ selective laser sintering materials. It’s an excellent choice when stiffness and high temperature resistance are the most important requirements.

Temperature Resistance
Stiffness
Strength
Durability
Dimensional Stability

PA614-GS

PA614-GS is a polyamide powder loaded with glass spheres that add stiffness and dimensional stability. The material possesses higher thermal resistance than unfilled polyamides and exhibits excellent long-term wear resistance. Due to the glass additive, it has decreased impact and tensile strengths compared to other nylons.

Stiffness
Wear Resistance
Strength
Durability
Dimensional Stability

PA12 White

PA 12 White is an economical material choice for functional prototypes and end-use parts. It offers high impact and temperature resistance, is very durable, and remains stable under a range of environmental conditions. The nylon material exhibits a white finish with a slightly rougher surface texture compared to other nylons.

Strength
Economical
Durability
Dimensional Stability
Wear Resistance

Polypropylene Natural

Polypropylene Natural is true Polypropylene. With Polypropylene being one of the most commonly used plastics worldwide, this material is ideal for prototyping and end use production. PP Natural is a low weight material, by comparison to other plastics, and it exhibits durability in addition to being both tough and flexible.

Flexibility
Chemical
Resistance Dimensional Stability

TPU 70-A

This thermoplastic polyurethane (TPU) combines rubber-like elasticity and elongation with good abrasion and impact resistance. It can be leveraged to produce both prototypes and functional parts.

Flexibility
Impact Resistance
Wear Resistance

More Materials

Surface Finish Options for SLS 3D Printing

Surface finishes can serve either a functional or aesthetic purpose. Surface finishes that serve both purposes are deemed cosmetic finishes, and are used for cosmetic parts. Producing cosmetic parts requires additional measures to minimize defects such as hang marks and scratches from tools.

Types

Details

Clear Coat

Clear cosmetic finish that can be applied to ABS-Like Translucent/Clear (WaterShed XC 11122) and PC-Like Translucent/Clear (Accura 60) materials.

Painting

After smoothing the part with sanding and polishing, parts can be painted with automotive-grade paint. Provide a pantone color with your quote request. We also offer soft-touch painting.

Plating

Electroless nickel plating can be used to achieve parts that are similar to cast aluminum or magnesium.

Dyeing

Dyeing is another method for adding color to 3D prints. This is faster option with a limited color selection, so is a more cost-effective choice than painting.

Decaling

Decaling can be used to add a logo or other graphics to boost cosmetics or function.

Polishing

We can polish parts to a mirror-like finish. If this is a requirement, we ask that you provide either a drawing or image that indicates your finish expectations.

Heat Treatment

Harden and strengthen metal 3D prints with multiple heat treatment options: NADCAP heat treatment, hot isostatic pressing (HIP), solution annealing, and aging.

How to Work With Us

Request A Quote

Confirm Specifications

Manufacturing Begins

Parts Are Shipped

Request A Quote

Tip: Inquiries about gun types are not accepted!

Testimonials / Satisfied Customers

Dorothy

Buyer at Leading Energy company

WJ Prototypes is Great!

“We’re glad we recently added WJ Prototypes to our AVL. You guys are always quick and friendly and all the Machining jobs we have sent have gone smoothly!”

Thomas

Engineer at Robotics Company

Our No.1 source for CNC parts

“We had a time sensitive Sheet Metal enclosure with fairly strict cosmetic requirements. WJ Prototypes came through for us and the parts looked great. The full build turned some heads at our Trade Show!”

Marc

Buyer at Electric Car Company

Great prices, lead times, and quality of work

“You guys are one of the easiest job shops I’ve worked with the last 10 years. You are responsive and competitive. We’ve appreciated the awesome work!”

Video Display

Sheet Metal Fabrication

SLA 3D printing

CNC Machining

Selective Laser Sintering
(SLS) 3D Printing Service

SLS 3D Printing Services In China