A production-ready vacuum debinding and sintering furnace for MIM, powder metallurgy and controlled-atmosphere thermal processing. Built for wax removal, clean gas flow, stable temperature uniformity and repeatable material curves.
Every engineering decision in our furnace targets a specific, documented MIM production problem. These aren't marketing features — they're solutions to issues that cost MIM manufacturers time, money, and quality every day.
Every parameter verified under actual production conditions. Choose the model that fits your production volume and part size requirements.
| Parameter | VF-336 | VF-556 | VSF-5616 | VSF-5620 | VSF-7820PRO |
|---|---|---|---|---|---|
| Max Temperature | 1600°C | 1600°C | 1600°C | 1600°C | 1600°C |
| Heating Power | 72 kW | 150 kW | 180 kW | 210 kW | 240 kW |
| Heating Zones | 2 | 2 | 4 | 4 | 6 |
| Ultimate Vacuum | ≤0.7 Pa | ≤0.7 Pa | ≤0.7 Pa | ≤0.7 Pa | ≤0.7 Pa |
| Temp Uniformity | ≤±5°C | ≤±5°C | ≤±3°C | ≤±3°C | ≤±2°C |
| Hot Zone (W×L×H) | 300×300×600 | 500×500×600 | 500×560×660 | 500×560×660 | 700×780×830 |
| Wax Trapping | 7-Stage | 7-Stage | 7-Stage | 7-Stage | 7-Stage |
| Cooling System | Cu | Cu | Cu | Cu | 100% Cu |
| Gas Flow | Isolated | Isolated | Isolated | Isolated | Isolated |
| Felt Thickness | 40mm | 50mm | 50mm | 50mm | 50mm |
| Control System | PLC+HMI | PLC+HMI | PLC+HMI | PLC+HMI | PLC+HMI |
| Power Failure | ≥30 min | ≥30 min | ≥30 min | ≥30 min | ≥30 min |
| Suitable For | R&D / Pilot | Small Batch | Medium Production | Large Production | Mass Production |
Core modules are designed around common MIM process risks: binder removal, atmosphere cleanliness, temperature uniformity, cooling efficiency and batch repeatability.
3 water-cooled collection boxes (furnace box, Roots pump box, slide valve pump box) + 4 sequential cold traps. Uses staged collection and cold-trap sections to reduce binder-vapor carryover toward the vacuum pumps.
Solves: Incomplete Debinding + Wax BuildupPatented graphite box design with separate internal and external gas inlet channels. Internal gas enters the hot zone directly; external flow stays outside. The two streams never mix.
Solves: Carburization + Gray PartsOne-piece circular hard-carbon-felt insulation, specified at 50 mm for this configuration. Integral construction reduces seam-related heat-loss paths. The 50 mm hard-carbon-felt insulation and integral construction are intended to limit heat loss; actual energy use depends on furnace size, load, temperature profile and cycle time.
Solves: Energy Waste + Inconsistent HeatingThe copper heat-exchanger configuration is designed for efficient heat transfer; actual cooldown performance depends on exchanger design, cooling-water conditions, load and cycle parameters. Dramatically faster cooling, shorter cycles, higher throughput.
Solves: Slow Cooling + Low ThroughputSix independently controlled heating loops with 9-point uniformity measurement across the H-L full temperature range. Dimensional variation ≤±1.2‰, weight variation ≤3‰.
Solves: Uneven Sintering + Dimensional DriftBuilt-in compressed air storage tank provides continuous pneumatic supply during power outages. All valves and safety systems stay operational to protect the furnace, heaters, and workpieces.
Solves: Workpiece Loss During OutageGraphite furnace configuration with isolated gas flow produces titanium parts with normal silver-white appearance, excellent flexibility (bendable without fracture), and a surface condition subject to material-specific process qualification.
Solves: Titanium Discoloration + Alpha CaseEliminate the separate debinding furnace entirely. Removing the inter-furnace transfer step reduces exposure to transfer-related contamination and oxidation, and removes an inter-furnace transfer step; actual handling and cycle-time savings depend on the production route.
Solves: Transfer Contamination + Time WasteFrom medical implants to aerospace components, watch parts to 3D printed metal — one furnace platform can support a broad material and application range.
Stainless steel (304L, 316L, 17-4PH, 420, 440C), iron-nickel, soft magnetic alloys. Watch parts, consumer electronics, automotive.
Aerospace fasteners, medical implants, dental components. Normal silver-white appearance, zero alpha case, bendable.
WC-CO tungsten carbide for cutting tools, mining, wear parts. Partial pressure sintering with precise carbon control.
Sintering support removal + densification for binder jetting and metal FFF printed parts.
The furnace platform supports a broad library of pre-programmed material curves for MIM production, carbide, magnetic alloys, titanium alloy and tool steel processing.
Each material model is matched with a named curve so operators can select the correct sintering profile more consistently. This reduces setup errors and makes production transfer easier across operators, shifts and product batches.
The list below is based on the provided processed materials and sintering curve schedule.
| No. | Material Model No. | Curve Name |
|---|---|---|
| 1 | WC-CO | WC-V1 |
| 2 | 316L | 316L-V1 |
| 3 | 17-4 | 17-4-V1 |
| 4 | 304L | 304L-V1 |
| 5 | 420 | 420-V1 |
| 6 | SKD11 | SKD11-V1 |
| 7 | Ti Alloy | Ti-V1 |
| 8 | Fe-4Ni (Fe-8Ni) | FeNi-V1 |
| 9 | PANACEA | PA-V1 |
| 10 | GQ4L | GQ4-V1 |
| 11 | FeCoV185 | FCV-V1 |
| 12 | XH-95 | XH-95-V1 |
| 13 | 4340 | 4340-V1 |
| 14 | 8260 | 8260-V1 |
| 15 | H13 | H13-V1 |
Head-to-head comparison. Use this comparison to evaluate process configuration, operating stability and long-term maintenance factors.
Henan Synthe Corporation focuses on vacuum furnace equipment, process support and industrial thermal processing solutions for aerospace, automotive, medical devices, electronics, powder metallurgy and research applications.
Send your material, part size, batch loading, target density, atmosphere and vacuum requirements. SYNHTE FURNACE can help review the furnace configuration and process route for your MIM or powder metallurgy project.
