What We Can Do

Additive Manufacturing Capabilities: SLA, SLS, MJF & DMLS

Havell runs SLA (stereolithography) and SLS (selective laser sintering) in-house, the two processes that cover the widest range of precision prototyping and production needs. For metal and high-volume work, we extend into MJF and DMLS through a vetted US-based process network, so you get the right process for the part without managing multiple vendors.

SLA

Stereolithography

Smooth surface finishes, fine features, tight tolerances. Ideal for cosmetic prototypes, master patterns, fluidics, and high-detail end-use parts. Engineering and biocompatible-grade resins available.

SLS

Selective Laser Sintering

Durable nylon parts, no support structures, great for functional prototypes and end-use production. Strong, isotropic, production-ready.

MJF

Multi Jet Fusion

Fine-feature nylon at production volumes with consistent mechanical properties. Available through our US-based process network.

DMLS

Direct Metal Laser Sintering

Metal parts for demanding aerospace, defense, and energy applications. Available via our qualified partner network (quoting on request).

Specifications below represent practical production ranges. Contact us for out-of-standard requirements.

SLA (Stereolithography)

Current

MachinesFormlabs Form 4BL
Build Volume353mm × 196mm × 350mm (Form-series); larger parts by sectioning & bonding
Layer Height20–100 μm typical (25 μm possible on select resins)
Tolerances±0.15 mm or ±0.2% (±0.015 in), geometry dependent
MaterialsGray, Tough 2000, Durable, Clear, Rigid, High Temp and more
FinishingWash, UV cure, light sanding, clear coat (on select resins)
TurnaroundRapid prototyping, Production runs, tooling, and more

SLS (Selective Laser Sintering)

Current

MachinesEOS P1, EOS P3
Max Part SizeEOS P1: 200 × 250 × 330 mm; EOS P3: 340 × 340 × 600 mm
Tolerances±0.3% with a lower limit of ±0.25 mm (0.01 in)
Layer HeightEOS P1: 100 μm; EOS P3: 120 μm
MaterialNylon 12
Min. Hole Size1 mm (0.0393 in)
Min. Clearance0.6 mm (0.023622 in)
Min. Wall Size1.0 mm (0.0393 in)
Max. Wall Size25 mm (1 in)
Coming soon

DMLS (L-PBF)

Current

StatusVia partners (quoting on request)
MaterialsAlSi10Mg, 316L stainless (others by request)
Use CasesConformal-cooling tooling, brackets, heat exchangers, mounts

Future

Build VolumeSmall–mid format metals (target)
Tolerances±0.3–0.5 mm pre-finish (target), tighter with machining
Post-ProcessingHeat treat, machining, bead blast, inspection