Process
SLA
Resolution
25-50μm
Tolerance
±0.1mm
Lead Time
3-5 Days
MOQ
1 Piece
Materials
Resin (Standard, Tough)
SLA 3D printing services at Sinbo 精密 deliver exceptional detail and surface quality through stereolithography technology. Our SLA process uses UV lasers to cure photopolymer resins layer by layer, producing parts with ultra-high resolution and smooth surfaces that rival injection-molded parts. With layer thicknesses as fine as 25 microns and XY resolution down to 35 microns, SLA is ideal for applications requiring intricate details, fine features, and excellent surface finish.
Our SLA material portfolio includes standard resins for general prototyping, tough resins for functional testing, flexible resins for elastic parts, and castable resins for jewelry and dental applications. Each resin formulation is optimized for specific properties including tensile strength, elongation at break, thermal resistance, and biocompatibility. Our experienced team provides expert guidance on material selection to ensure your SLA parts meet your exact requirements for appearance, functionality, and performance.
Every SLA printed part undergoes meticulous post-processing including support removal, IPA cleaning, UV curing, and optional surface finishing. Our quality control process includes dimensional verification and visual inspection to ensure each part meets your specifications. With our USA warehouse and fast delivery options, you can receive high-detail SLA prototypes quickly, ready for design validation, presentation models, or limited functional testing. Our engineering team provides design for SLA printing guidance to optimize your models for the best possible results.
| Process | SLA (Stereolithography) |
| Materials | Standard Resin, Tough Resin, Flexible Resin, Castable Resin, Dental Resin |
| Build Volume | Up to 145mm × 145mm × 175mm |
| Layer Thickness | 25-100μm (0.001-0.004") |
| XY Resolution | 35-50μm |
| Tolerance | ±0.1mm (±0.004") |
| Surface Finish | Ra 0.4-1.6μm (as-printed), Ra 0.2-0.8μm (polished) |
| Lead Time | 3-5 days (standard), 1-2 days (expedited) |
| MOQ | 1 piece (prototyping), 5 pieces (production) |
| Certifications | ISO 9001, ISO 13485 (medical) |
General prototyping with smooth surface finish
Functional testing with high impact resistance
Elastic parts with rubber-like properties
Jewelry and dental casting applications
Biocompatible for dental applications
Thermal resistance for demanding applications
Design validation and presentation models
Fine features and intricate geometries
Casting patterns and design prototypes
Dental models and surgical guides
Film props and scale models
Form verification and assembly testing
Layer Resolution
Precision Tolerance
Days Delivery
Surface Finish
ISO 9001:2015
ISO 14001:2015
ISO 13485:2016
SA 8000:2014
We accept orders starting from 1 piece for prototyping. For production runs, we recommend a minimum of 5 pieces to optimize cost efficiency. SLA is particularly cost-effective for small batches due to its accuracy and speed.
Standard lead time is 3-5天 depending on part complexity and quantity. Expedited service is available with 1-2天 delivery for urgent requirements. Post-processing time is included in these estimates.
We accept STL, OBJ, and 3MF files. Our engineering team can work with various CAD formats and provide design for SLA printing guidance to optimize your models for the best possible surface finish and detail.
We offer comprehensive post-processing including support removal, IPA cleaning, UV curing, sanding, priming, painting, and various finishing options to achieve your desired appearance and surface quality.
SLA offers the highest resolution and best surface finish among 3D printing technologies, making it ideal for detailed prototypes and aesthetic models. It's less suitable for functional testing requiring high strength, where SLS or FDM may be better choices.