What is Selective Laser Sintering?

Selective laser sintering(SLS)is an additive manufacturing technique that uses a laser as the power source to sinter powdered materila(typocally metal or polymer), aiming th laser automatically at points in space defined by a 3D mode., binding the material together to create a solid structure. It is similar to direct metal laser sintering(DMLS);SLS (as well as the other mentioned AM techniques) is a relatively new technology that has mainly been used for rapid prototyping and for low-volume production of component parts so far. Production roles are expanding as the commercialization of AM technology improves.

How Does SLS Work?

  1. 1. 3D Model is made.
  2. 2. The SLS machine begins sintering each layer of part geometry into a heated bed of nylon-based powder.
  3. 3. After each layer is fused, a roller moves across the bed to distribute the next layer of powder. The process is repeated layer by layer until the build is complete.
  4. 4. When the build finishes, the entire powder bed with the encapsulated parts is moved into a breakout station,where it is raised up, and parts are broke out of the bed.
  5. 5. An initial brushing is manually administered to remove a majority of loose powder. Parts are then bead blasted to remove any of the remaining residual powder before ultimately reaching the finishing department.

What Are the Advantages of SLS?

  • PrecisionWith the latest generation of 3D printing technologies, we can meet tighter tolerances.
  • DurabilitySLS nylon is a durable material with great impact strength, medium flexibility, and high resistance to environmental factors.
  • ScalabilitySLS can make a single part or component as easily as dozens of production pieces.
  • Complex GeometryGeometries can be built more easily due to the 3D printing process, adding complexity without additional cost.
  • Rapid TurnaroundGenerally, parts can be shipped in 3-5 days, allowing for faster lead time and speed to market.


Optimal Batch Sizes

1-100 pieces

Layer Thickness


Started from USD100

Lead Time

1-3 days

Maximum Component Size

580 * 580 * 400mm

Minimum Wall Thickness


Materials Available for SLS

Materials Material Category Attributes / Applications
Nylon Plastic Rigidity
Temperature resistance

For more specific materials, please feel free to contact our engineers.

Surface Finishes

After machining, surface finishes are applied and customers can select the appearance, surface roughness, hardness and chemical resistance of the finished parts as they like. What surface finishing can I get? Click Here

Quality Assurance

  • Quality System Certification ISO9001:2015 obtained since 2015.
  • Strict quality controlflow: IQC(Incoming Quality Control), FAI (First Article Inspection), IPQC(InPut Process Quality Control), OQC(Outgoing Quality Control) and COC (Certificate of Conformance) can be provided at your request.
  • Rich Inspection Ways and Inspection tools, like pin gauge, colorimeter etc.
  • A wide range of inspection equipment: CMM, Flash Measuring Machine, 3D Scanner, 2D Image Measuring Machine, etc.
  • Highly-skilled QA team with over 10-year experiences.
  • Strict Quality Control System to keep processes improvement and optimization.
  • Material certificates and test reports can be provided on request.

Industries Applied

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