H350

The H350 is an MJF 3D printer from Stratasys with a 315 x 208 x 293 mm build volume.

Specifications

Stratasys H350, Technical Specifications

Process (SAF, Selective Absorption Fusion)

The H350 does NOT use a laser. It belongs to the jetted-agent + IR-lamp powder bed fusion family (alongside HP MJF and voxeljet HSS): a piezo inkjet printhead (Xaar-derived) jets High Absorption Fluid (HAF) onto a polymer powder layer; a broadband IR lamp then passes over the full bed width and fuses only the HAF-wetted areas. Un-wetted powder acts as self-supporting build cake.

Printhead

Xaar-derived piezo-electric inkjet head with individually controlled nozzles and adjustable drop volume. Integrated nozzle diagnostics and automatic compensation for missing nozzles.

IR Lamp.

Calibration

H350: Calibration Procedures

Recoater and platform levelling

Check before every production run. Deviation >0.1 mm along the recoater blade length causes uneven powder layers and thermal anomalies. Use the Process Validation Kit.

HAF nozzle diagnostics

Run nozzle check before every build. HAF gels after >48 h idle: run head cleaning on every power-up after such periods. Replace printhead cartridge if >3 % nozzles are inactive.

IR lamp uniformity.

Common defects

H350: Defects and Fixes

Warping / part distortion

Uneven cooling of the build cake after the job ends. Fix: extend cool-down (2× build time); reorient parts 45° in Z.

Incomplete fusion (porous/brittle zones)

Blocked HAF nozzle: area without agent does not fuse. Fix: head cleaning → nozzle check → replace cartridge if needed.

Agent bleed (blurred contour)

HAF spreads beyond the intended boundary: overheated chamber, aged agent, or wrong powder.

What it is used for

H350: Use Cases

Series production of functional polymer parts

Big Wave >40 % packing density makes H350 economically competitive with injection moulding for runs of 500–5,000 parts. Ideal for industries requiring low per-part cost at medium volumes.

Bio-based and recycled materials.