The Yamato DP-104C is a 1000 L floor-type large-capacity vacuum drying oven — the largest model in this vacuum-oven family and the larger of the DP83C/104C pair (1000 L vs 512 L), engineered for treatment of large-sized parts at production scale. It dries by decompressed-chamber direct heating: reducing chamber pressure to as low as 0.1 kPa (1 Torr) lowers the boiling point of moisture and solvents so they evaporate gently at low temperature. A 14.4 kW heater, a 3-segment PID controller with 30-step program operation, and an internal vacuum-pump installation room make it a self-contained industrial-scale oven. on a 3-phase AC480V supply, it is the top-capacity choice for large-part production drying, high-throughput bulk solvent removal, and industrial degassing.
Its smaller sister is DP-83C (512 L, AC220V); the DP43C/63C series (91 L / 216 L) covers smaller loads.
Key Specifications
| SKU | DP-104C |
| Type | Floor-type large-capacity vacuum drying oven, programmable |
| Method | Decompressed-chamber direct heating |
| Internal capacity | 1000 L |
| Operating temperature range | 40 ~ 200 °C |
| Operating vacuum range | 101 ~ 0.1 kPa (760 ~ 1 Torr) |
| Temperature adjustment accuracy | ±1.0 °C (at 200 °C) |
| Internal dimensions (W×D×H) | 1000 × 1000 × 1000 mm |
| External dimensions (W×D×H) | 1300 × 1280 × 2110 mm |
| Interior material | Stainless steel plate |
| Exterior material | Cold-rolled steel plate with chemical-proofing coating |
| Insulating material | Glass fiber |
| Heater power | 14.4 kW |
| Vacuum gauge | Pointer type, -100 ~ 0 kPa |
| Observation window | Toughened glass + resin protection panel |
| Vacuum pump installation room | Yes (internal) |
| Temperature control | 3-segment PID |
| Program mode | 3 segments, 30 steps (30×1, 15×2, 10×3) |
| Timer | 1 min – 999 hr 50 min |
| Sensor | K-thermocouple (controller + overheat protector) |
| Air exhaust port | NW40 flange |
| Air suction port | Rc 3/8 |
| Included shelves | 4 stainless-steel punching plates |
| Weight | ~1000 kg |
| Voltage | 3-phase AC480V, 18A, 50/60 Hz (no plug, round terminal) |
Maximum temperature-reaching time is not published for the DP83C/104C series in the brochure — confirm with Yamato at quote.
Application Profile
Large-part production drying. The 1000 L chamber and 1000 mm-cube interior are engineered for treatment of large-sized parts; decompressed direct heating dries them gently at 40–200 °C under reduced pressure.
High-throughput bulk solvent removal. Reduced pressure lowers solvent boiling points so residual solvents are stripped from very large batches, assemblies, and cast parts at low temperature. The 30-step program operation runs a defined multi-step drying schedule.
Industrial degassing and outgassing. Deep vacuum (to 1 Torr) drives dissolved gases and volatiles out of resins, adhesives, and cast materials before curing or measurement, at industrial scale.
Moisture-sensitive preparation of large assemblies. Bound and surface moisture is removed from hygroscopic materials and large parts before further processing, without oxidative exposure.
Self-contained installation. The internal vacuum-pump installation room and quick-connect / disconnect vacuum piping keep the pump housed with the oven and simplify maintenance.
Design Architecture
The DP-104C dries by decompressed-chamber direct heating: a 14.4 kW heater warms the stainless chamber while a vacuum pump — which can be installed inside the oven's dedicated room — evacuates it through the NW40 exhaust flange to as low as 0.1 kPa (1 Torr), read on a pointer gauge (-100 ~ 0 kPa). An improved exhaust system significantly shortens vacuum-reaching time, and quick connect / disconnect vacuum pipes ease pump maintenance.
Control. A 3-segment PID controller holds setpoint to ±1.0 °C at 200 °C across the 40–200 °C range, with a green 4-digit LED measured-temperature display and red 4-digit LED setting display. Operation modes include fixed-temperature, auto-start, auto-stop, and program operation (3 segments, 30 steps: 30×1 / 15×2 / 10×3), plus deviation correction, key-lock, and power-outage compensation. A K-thermocouple serves both the controller and the overheat protector, with SSR heater drive.
Chamber and viewing. The 1000 × 1000 × 1000 mm stainless interior ships with 4 stainless-steel punching plates (shelves). A toughened-glass observation window with resin protection panel allows monitoring under vacuum.
Safety. A self-diagnostic circuit (abnormal-temperature sensing, heater disconnection, auto overheat prevention, SSR short-circuit), an overheat protector, an ELB to prevent overcurrent, and key-lock. For safety, a resin protection panel is installed at the observation window. Never use in a flammable or explosive gas atmosphere, and never process explosive or flammable material. High-temperature components — observe burn-hazard cautions.
Frequently Asked Questions
What is the DP-104C's capacity and temperature range? 1000 L (a 1000 mm-cube interior), operating 40 to 200 °C with ±1.0 °C adjustment accuracy at 200 °C.
What electrical service does it require? 3-phase AC480V, 18 A, 50/60 Hz, with no plug (round terminal) — a hardwired 3-phase connection.
How deep a vacuum does it reach? To as low as 0.1 kPa (1 Torr), across a 101 to 0.1 kPa (760 to 1 Torr) range.
Where does the vacuum pump go? The DP-104C has an internal vacuum-pump installation room; Yamato recommends the NEODRY60E2 dry-vacuum-pump kit (200–240V) for the DP83C/104C series.
How long does it take to reach maximum temperature? Maximum temperature-reaching time is not published for the DP83C/104C series in the brochure — confirm with Yamato at quote.
Ordering & Configuration
Included: 4 stainless-steel punching plates (shelves).
Pair with a vacuum pump. Yamato recommends the NEODRY60E2 dry-vacuum-pump kit (200–240V) for the DP83C/104C series. Optional accessories include additional shelf plates, N2 introduction device, recorder, alarm indicator lamp (stand-by / running / malfunction), and temperature/alarm output terminals. Specify at order.
Confirm electrical supply. The DP-104C requires 3-phase AC480V, 18A, with no plug (round terminal) — plan a hardwired 3-phase connection. Confirm supply and circuit at order.
Plan floor space and installation. At 1300 × 1280 × 2110 mm external and ~1000 kg, this is a large industrial floor-standing unit — confirm room access, floor loading, rigging, and service clearance at order.
Confirm application fit. Verify sample chemistry, target temperature/vacuum, part/batch size versus the 1000 L chamber, and whether the 512 L DP-83C is sufficient.
Request a quote for pricing, vacuum-pump pairing, optional accessories, 3-phase electrical/installation and rigging planning, lead time, and warranty. Warranty per Yamato standard capital-equipment terms — confirm at quote.
Yamato DP large-capacity vacuum drying oven family:
- DP-43C — 91 L, 220V
- DP-63C — 216 L, 220V
- DP-83C — 512 L, 220V
- DP-104C (this product) — 1000 L, 480V 3-phase
