Jet Fusion 3D 4210B

The Jet Fusion 3D 4210B is an MJF 3D printer from HP with a 380 x 284 x 380 mm build volume.

Specifications

HP Jet Fusion 3D 4210B: Technical Profile

Technology and Print Mechanism

Identical to the 4210: HP Multi Jet Fusion full-bed thermal process with 1200 dpi deposition of Fusing and Detailing Agents, infrared heating, and powder bed sintering. The distinguishing feature is entirely in the material supply system: not in the optics or print mechanics.

Build Volume and Layer Resolution

380 × 284 × 380 mm build chamber; 80–100 µm layer resolution. All production parameters are identical to the 4210.

Bulk Material System

The key differentiator: 1400 L bulk powder bins instead of 300 L interchangeable boxes.

Calibration

Calibrating the HP Jet Fusion 3D 4210B

• Pre-heating and bulk verification: heat the chamber to the material profile; simultaneously check the bulk transport system. With bulk transport, allow an extra 5–10 min buffer.
• Bulk transport check: verify vacuum pumps and pipelines; the 1400 L bin level sensor should show correct volume. Install desiccants in humid climates to prevent agglomeration.
• Nozzles and agents: test jetting of both agents; expect ≥98% active nozzles.

Common defects

Common Defects in HP Jet Fusion 3D 4210B

Bulk system agglomeration: Powder clumps in transport pipelines due to high humidity or temperature fluctuations in the storage area. Fix: desiccants in bins; humidity control below 30%; regular vacuum purging of pipelines.

Porosity: Internal voids from clogged nozzles or degraded bulk powder with high recycled fraction. Fix: test/clean nozzles; increase fresh powder fraction; for persistent issues: service inspection.

What it is used for

Applications of the HP Jet Fusion 3D 4210B

Best use cases:

• 24/7 production bureaus, bulk bins eliminate production interruptions for powder refilling, a key advantage for continuous shifts.
• Series production above 1000 parts/week: lower cost per kg with bulk purchasing directly reduces per-unit cost.