How does MJF compare to SLS in speed and material versatility?

Processing Speed Differences

Multi Jet Fusion (MJF) is generally faster than Selective Laser Sintering (SLS) due to its unique thermal and fusing approach. Instead of relying on a point-by-point laser scan like SLS, MJF uses an array of inkjet heads to deposit fusing and detailing agents across an entire layer, followed by uniform infrared energy exposure. This enables each layer to be processed in a single pass, significantly reducing build time for dense or full-batch builds. For manufacturers operating in fast-paced sectors such as automotive and aerospace and aviation, the throughput advantage of MJF results in shorter lead times and improved cost efficiency for both prototypes and end-use parts.

Material Versatility and Performance

Both MJF and SLS work primarily with polymer powders, especially polyamides such as PA12 and PA11, but MJF generally offers better consistency in mechanical properties due to its more uniform fusion process. The controlled application of fusing agents helps reduce anisotropy and improves surface finish compared with SLS. While SLS supports a broader range of specialty powders—including TPU, glass-filled nylon, and high-performance blends—MJF is rapidly expanding its material portfolio with engineering plastics that offer fine detail and consistent strength. For users in energy and industrial sectors, this reliability is particularly valuable for functional prototypes, lightweight housings, brackets, and fluid-handling components.

Production Efficiency and End-Use Capability

MJF excels in producing batches of small to medium-size parts with uniform density and excellent dimensional accuracy. The ability to process full build volumes efficiently makes it ideal for scalable manufacturing. In contrast, SLS remains advantageous for highly specialized materials or high-temperature polymers where mature powder formulations already exist. When paired with advanced finishing or integration into broader workflows like 3D printing services, both technologies deliver strong functional performance, but MJF often delivers faster turnaround with more predictable mechanical results.