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Industrial SLS 3D Printing for Functional Parts
Selective Laser Sintering (SLS) is the premier additive manufacturing technology for producing durable, end-use thermoplastic parts. Unlike other 3D printing methods that require breakaway support structures, SLS uses a high-power laser to fuse polymer powder layer by layer, with the unsintered powder supporting the part geometry.
At JUCHENG, we operate a fleet of large-frame industrial SLS systems. This technology allows for "nesting" (stacking) hundreds of parts in a single build chamber, making it the most cost-effective solution for low-to-medium volume production. Whether you need complex air ducts with internal channels or flexible elastomeric lattices, our SLS service delivers isotropic, functional parts ready for the real world.
SLS 3D Printing

JUCHENG’s SLS Production Capacity

We optimize the sintering process for consistency and mechanical performance:
  • Large Build Volume: Our machines feature large build chambers (up to 600mm axis), allowing for the production of large single-piece automotive panels or high-density batches of smaller clips.
  • High-Density Nesting: We utilize advanced software to pack parts efficiently in the 3D build volume, significantly reducing machine time and unit cost for batch orders.
  • Surface Finishing: Raw SLS parts have a "sugar cube" texture. We offer Vapor Smoothing to seal the surface and make it water-tight, as well as Dyeing (Black/Color) and Media Tumbling for a smooth consumer finish.
  • Precision: We achieve standard tolerances of ±0.3mm, suitable for most functional plastic assemblies.
SLS 3D printer powder bed

Product Gallery Categories

Complex Ductwork & Manifolds
Complex Ductwork
Functional Nylon Mechanisms
Functional Mechanisms
Flexible TPU Lattices
Flexible Lattices
Low-Volume Production Runs
Batch Production
Large Structural Housings
Structural Housing

Materials Available

SLS Powder Options
SLS relies on high-quality thermoplastic powders. We stock the industry standards:
Material Key Characteristics Best Application
Nylon 12 (PA12) Balanced strength and detail. White color. General housings, functional prototypes.
Nylon 11 (PA11) Higher impact resistance and elongation. Snap-fits, living hinges, crash parts.
Glass-Filled Nylon Reinforced for high stiffness and heat resistance. Structural brackets, under-hood parts.
TPU (Elastomer) Flexible, rubber-like elasticity. Gaskets, seals, soft-touch grips.
Carbon-Filled Nylon ESD safe, lightweight, and stiff. Drone parts, electronic fixtures.

Comparison

Comparison: SLS vs. SLA vs. MJF
Why choose SLS over other plastic printing methods?
Feature SLS (Laser Sintering) SLA (Resin) MJF (HP Fusion)
Support Structure None Required Required (Peel off) None Required
Material Strength High (Functional) Low (Brittle) High (Functional)
Heat Resistance High (~175°C for GF) Low to Medium High
Surface Finish Matte / Rough Smooth / Glassy Matte / Grey
Production Speed Medium Medium Fast
Cost per Part Low (for batches) High Low (for batches)

Why Choose Us

The JUCHENG SLS Advantage
  • Powder Quality Control: We strictly monitor the refresh rate (ratio of virgin to recycled powder) to ensure your parts have consistent mechanical strength and do not become brittle ("orange peel" effect).
  • Post-Processing Mastery: We don't just ship dusty parts. We blast, tumble, and dye them in-house so they arrive clean and ready for assembly.
  • Scale: From a single prototype to a run of 5,000 units, our factory can scale with your project growth without tooling investment.
  • Design Support: Our team advises on hollowing and escape holes to minimize material usage and prevent warping.

Advantages

Key Benefits of SLS Technology
  • Design Freedom: The ability to print without supports allows for impossible geometries, such as internal lattices and pre-assembled moving joints.
  • Isotropic Properties: Parts have nearly equal strength in X, Y, and Z directions, making them reliable for load-bearing applications.
  • Durability: Sintered nylon is chemically resistant and tough, suitable for long-term end-use.
  • Speed: No tooling lead time means you can have functional parts in days, not weeks.

Industries Served

Industries Using SLS Parts
  • Automotive: Air intake systems, fluid reservoirs, interior clips, customized knobs.
  • Medical: Custom orthotics (insoles), prosthetics, surgical guides (using biocompatible grades).
  • Aerospace: Lightweight ducting, UAV (drone) airframes, non-structural brackets.
  • Consumer Goods: Customized eyewear frames, sports equipment, footwear components.
  • Robotics: End-of-arm tooling (EOAT), grippers, protective skins.
Jucheng Precision Factory
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    Factory Address :
    Shenzhen: Fourth Industrial Zone, Xisha Road, Shajing Street, Baoan District, Shenzhen.
    Dongguan: Building 5 and 4, No. 198, Chang'an Section, Guanchang Road, Chang'an Town, Dongguan.
     
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    +86 - 186 - 8005 - 3076

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