Selective Laser Sintering (SLS) 3D Printing Services
Durable, Functional Parts with Complex Geometries
SLS builds strong, production-ready parts with excellent mechanical properties and no support structures. Ideal for snap-fits, living hinges, housings, jigs/fixtures, and flexible TPU components.
Max Print Size
398mm
15.7 in
Max Build Volume
130×180×340 mm
5.1 × 7.1 × 13.3 in
Layer Height
75 – 175 μm
0.003 – 0.006 in
What is Selective Laser Sintering?
Selective Laser Sintering (SLS) is a powder-based 3D printing process that uses a high-powered laser to fuse polymer powders into solid layers. Known for its strength, durability, and ability to produce complex geometries without support structures, SLS is widely used for both prototypes and production-ready parts.
SLS 3D printing is ideal for:
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Parts requiring strength and durability for functional testing and end-use applications
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Complex geometries and assemblies that are difficult to produce with traditional methods
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Lightweight, lattice, or hollow structures without the need for support material
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Snap-fits, hinges, and flexible designs made possible by engineering-grade materials like TPU
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Industrial, consumer, and medical applications demanding performance and reliability
Technical Specifications
Build Volume
130 × 180 × 340 mm
(5.1 × 7.1 × 13.3 in)
Ideal for medium-sized functional and production-ready parts.
Layer Height
75 – 175 μm
(0.003 – 0.007 in)
Reliable precision across complex geometries.
Max Print Size (diagonal)
398 mm
(15.7 in)
Optimized for tall and elongated parts.
TPU 90A
Flexible, Durable Parts for Demanding Applications
With TPU 90A, our SLS printing service delivers production-ready flexible parts that combine durability with skin-safe performance. This material is ideal for engineers and product teams developing wearables, seals, straps, gaskets, and other components that require elasticity, tear resistance, and long-term reliability.
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Shore Hardness: 90A (durable elastomer)
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Elongation at Break: up to 310% (X/Y) – excellent flexibility
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Tear Resistance: 66 kN/m (X/Y) – high durability under stress
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Tensile Strength: 8.7 MPa (X/Y) – strong for a flexible material
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Biocompatibility: ISO 10993 certified – skin-safe
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HP Nylon PA12
Durable, Accurate Parts for Prototypes and Production
With Nylon PA12, our SLS printing service produces high-strength, dimensionally stable parts that combine durability with exceptional surface quality. This versatile material is ideal for engineers and manufacturers who need components that perform reliably under mechanical stress, temperature variation, and repeated use.
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Tensile Strength: 48 MPa – strong, engineering-grade performance
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Elongation at Break: 20% – balanced flexibility and impact strength
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Heat Deflection: 175°C – stable under high temperatures
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Accuracy: ±0.05m – consistent dimensional precision
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Chemical Resistance: Resists oils, greases, and solvents
Design Guidelines for SLS 3D Printing
Minimum wall thickness
Recommended: 0.8 mm (flexible parts), 1.5–2 mm (durable parts)
Walls thinner than 0.8 mm may not sinter consistently, especially with flexible materials. Use thicker sections when higher tear strength or repeated bending is required.
Minimum detail / feature size
Recommended: 5.0 mm
Fine embossed or debossed features are printable, but for legibility use ≥1 mm.
Clearance for moving parts
Recommended: 0.2 – 0.5 mm
This prevents fusing of hinges, snaps, or interlocking geometries. Larger clearances may be needed for thicker geometries.
Maximum horizontal support span / bridge
Recommended: 29 mm (5 mm wide × 3 mm thick)
A span is the distance between two intermediate supports of a structure.
Holes and channels
Recommended: ≥0.5 mm diameter
For channels longer than 10 mm, include powder-escape holes to allow effective cleaning.
Emboss / engrave
Recommended: ≥0.1 mm emboss, ≥0.15 mm engrave
Ensures visibility and avoids loss of detail after depowdering.
