Spark plasma sintering
Use the S Series when the process requires fast heating, pressure-assisted sintering, and controlled vacuum or inert atmosphere for advanced powder materials.
Process window
Process definition
The S Series is Haoyue's spark plasma sintering family for rapid, pressure-assisted densification under vacuum or inert atmosphere. Pulsed current, uniaxial load, tooling, and atmosphere are reviewed as one process window rather than as isolated catalogue limits.
S1-S4 cover laboratory and pilot development. S-150, S-200, S-300, S-400 and semi-continuous variants are industrial platforms for larger tooling, repeatable batches and production throughput. Exact limits remain project matched.
Selection boundary
Inquiry inputs
FAQ
SPS often enables short cycles for suitable conductive tooling and powder systems, but cycle time still depends on material, die design, and the programmed profile. Compare the full process window instead of a single heating-rate claim.
Start from sample or die size, load need, and whether the work is screening, pilot, or production-oriented. S1 is the usual laboratory entry; larger models follow only after the process inputs are clear.
Material, target temperature, load, die size, atmosphere, measurement method, and expected capacity are the most useful inputs for an SPS configuration review.
Next useful pages
Equipment gallery
Laboratory and pilot
Dedicated systems for material development, parameter validation, and pilot-scale trials.
Laboratory R&D
Compact samples and early process exploration.
Open model ->
Laboratory / pilot
University research and intermediate-scale trials.
Open model ->
Pilot
Larger tooling and repeatable process validation.
Open model ->
Pilot
Scale-up trials before an industrial platform is specified.
Open model ->Industrial and production
Industrial platforms for larger product envelopes, higher loads, repeatable batches, and continuous production planning.
Industrial range - S-400 shown
Production platforms configured for larger tooling, load, and repeatable batches.
Open model ->
Industrial / production
Semi-continuous SPS equipment for higher-throughput workflows.
Open model ->
Configured production system
Custom continuous variants for validated process and throughput requirements.
Open model ->Suitable materials
Typical applications
Models and scale-up
Laboratory and pilot models
| Model | Scale | Temperature | Pressure / load | Atmosphere | Best for | |
|---|---|---|---|---|---|---|
| S1 | Lab R&D | Up to 2200 C | Lab-scale pressing | Vacuum / inert gas | Small samples and process exploration | View model -> |
| S2 | Lab / pilot | Up to 2200 C | Medium load | Vacuum / inert gas | Universities and pilot trials | View model -> |
| S3 | Pilot | Up to 2200 C | Higher load | Vacuum / inert gas | Larger tooling and repeatable tests | View model -> |
| S4 | Pilot | Up to 2200 C | Higher load | Vacuum / inert gas | Scale-up trials and repeatable validation | View model -> |
Industrial and production models
| Model | Scale | Temperature | Pressure / load | Atmosphere | Best for | |
|---|---|---|---|---|---|---|
| S-150 | Industrial | Up to 2200 C | 1000 kN | Vacuum / inert gas | Industrial SPS with a 150 mm product envelope | View model -> |
| S-200 | Industrial | Up to 2200 C | 2000 kN | Vacuum / inert gas | Industrial SPS with a 200 mm product envelope | View model -> |
| S-300 | Industrial | Up to 2200 C | 2500 kN | Vacuum / inert gas | Industrial SPS with a 300 mm product envelope | View model -> |
| S-400 | Industrial | Up to 2200 C | 4000 kN | Vacuum / inert gas | Large industrial SPS tooling and batch development | View model -> |
| S-200S | Production | Project matched | Semi-continuous | Vacuum / inert gas | Higher throughput SPS workflows | View model -> |
Next step
A buyer checklist for matching die size, load, temperature measurement, atmosphere, tooling, and scale before requesting an SPS technical proposal.
A specification-led comparison of spark plasma sintering and vacuum hot pressing, including heating behavior, load path, tooling, atmosphere, scale, and the information engineers need before selecting a furnace.
Prepare an industrial SPS project from material screening through tooling, current path, data records, factory review, and site acceptance planning.
Response timing is confirmed after scope review.
