Vertical Lift Door Box Quenching Furnace Good Sealing Automatic Heat Treatment Oven

This automatic lift door quenching furnace abandons traditional manual horizontal flip door design, adopting electric vertical lifting furnace door driven by heavy-duty motor. The door fits tightly with furnace frame under self-weight compression, greatly improving sealing performance and reducing heat loss during heat preservation.

The whole set matches PLC automatic program control, supporting timed door opening after quenching holding cycle, reducing manual operation frequency and labor cost. It is widely applied in medium & large batch metal quenching production lines for factories pursuing automatic production.

After workpiece loading, the vertical lift door automatically closes and locks tightly. The heating system starts temperature rise according to preset program, complete quenching holding process. When the heat preservation cycle ends, the PLC automatically lifts the furnace door for material unloading, without workers standing by to operate the door manually. The self-weight compression seal keeps stable furnace temperature and reduces power waste.

1. Side-Open Box Quenching Furnace Front door loading & unloading, external quenching tank. Suitable for small-batch molds and single parts with low cost.

2. Bottom Drop Rapid Box Quenching Furnace The furnace bottom automatically descends and submerges into the quenching tank. Transfer time ≤30 seconds to avoid workpiece temperature drop and decarburization. Designed for precision alloy steel and aerospace components.

3. Trolley-Type Box Quenching Furnace Equipped with automatic loading/unloading trolley, specially for heavy-tonnage forgings, flanges and shaft parts.

4. Controlled Atmosphere Box Quenching Furnace Filled with nitrogen or methanol cracking gas for oxidation-free bright quenching. Ideal for automotive fasteners and gears.

5. Vacuum Box Quenching Furnace Sealed vacuum environment realizes zero oxidation and ultra-smooth surface finish. Applied to high-end molds and aerospace precision components

1. Electric Vertical Lift Automatic Door System Heavy-duty motor drives vertical lifting, one-button automatic opening & closing, compatible with automatic feeding trolley linkage.

2. Self-Weight Compression High Sealing Structure The door’s own weight presses tightly against furnace sealing surface, heat loss is reduced by 25% compared with horizontal flip doors, lower energy consumption.

3. PLC Linked Automatic Production Logic Support setting heating, holding, cooling and door opening procedures in one program, realize unattended heat treatment cycle.

4. Safe Anti-Fall Protection Device Equipped with double safety lock and anti-fall buffer for lift door, avoid accidental door drop during operation.

1. Furnace Body: Thick steel plate & section steel welded shell, anti-rust coating

2. Insulation Lining: High-temperature resistant ceramic fiber module, light weight & shock resistance

3. Heating Element: OCr27Al7Mo2 high-resistance alloy strip, long service life

4. Furnace Door: Electric lifting / swing door with double-layer sealing to avoid heat leakage

5. Control Cabinet: PLC + PID intelligent temperature controller, S-type thermocouple

6. Quenching System: Separate oil/water quenching tank with circulation cooling device

7. Atmosphere System (Optional): Methanol cracking, nitrogen input, carbon potential precise control

8. Vacuum System (Optional): Vacuum pump unit for bright vacuum quenching

• Door Driving Mode: Electric vertical lifting with reducer motor

• Sealing Method: Self-weight compression graphite sealing

• Control System: PLC touch screen automatic program control

• Safety Configuration: Anti-fall buffer + double mechanical lock

• Furnace Capacity: Medium & large batch customized cavity size

1. Medium batch hardware factory continuous quenching production

2. Automatic production line matched heat treatment equipment

3. Large-size mold steel batch hardening

4. Factory workshop standardized automatic heat treatment station

Q1: What’s the advantage of vertical lift door over traditional flip door?

A: Vertical door uses self-weight for tight sealing, less heat loss; fully automatic control reduces manual labor, easier to match automatic feeding trolleys.

Q2: Can the lift door work continuously for 24 hours?

A: The lifting motor and buffer structure are designed for non-stop industrial production, stable operation for long-time batch heat treatment.