High Uniform Temperature Box Quenching Furnace For Auto Parts Mold Steel Hardware Mass Production

This high-temperature uniformity quenching furnace solves the core pain point of ordinary box furnaces: uneven temperature leading to inconsistent hardness of large batch workpieces. It is equipped with a high-power high-temperature hot air circulation fan inside the furnace, forming three-dimensional circulating hot flow to eliminate local high/low temperature dead zones.

The temperature difference inside the whole cavity is controlled within ±3℃, every batch of automotive gears, synchronizer hubs and large mold steel obtains identical quenching hardness, greatly reducing product rejection rate caused by temperature deviation. It is specially customized for large-volume mass production manufacturers of auto parts and heavy molds.

When the furnace reaches target quenching temperature, the built-in high-temperature circulation fan runs continuously to stir hot air evenly in all directions. Multi-zone independent heating modules adjust heat output in real time according to temperature sensor feedback, eliminate local overheating or low-temperature areas, keep the whole chamber temperature stable within ±3℃, ensure uniform hardness of all loaded workpieces after quenching.

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.

• Built-In High Temp Hot Air Circulation System Vertical high-temperature circulation fan pushes hot air to form full-chamber three-dimensional convection, no temperature stratification.

• Ultra-Narrow Temperature Uniformity ±3℃ Strict temperature difference control inside furnace cavity, consistent quenching hardness for all stacked workpieces.

• Large Loading Capacity For Mass Production Widened & deepened furnace chamber design, support stacking multiple layers of auto parts and large mold steel for one-time batch processing.

• Precision Multi-Zone Temperature Independent Control Multiple groups of heating zones with separate PID temperature controllers, fine-tune temperature of different furnace areas to balance heat distribution.

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

• Internal Circulation: High temperature resistant vertical hot air fan

• Temperature Uniformity: ≤±3℃ full furnace cavity

• Control Mode: Multi-zone independent PID temperature control

• Loading Capacity: Large customized cavity for stacked mass parts

• Main Work Temp Range: 600℃ – 1050℃

• Automotive transmission gear & synchronizer mass quenching

• Large mold steel, die casting mold hardening treatment

• Heavy-duty hardware structural parts batch heat treatment

• Powder metallurgy auto component high-hardness quenching line

Q1: Why auto parts production requires high uniform temperature furnace?

A: Auto transmission parts have strict hardness tolerance standards; uneven furnace temperature will cause hardness deviation, leading to batch product scrapping.

Q2: Will the circulation fan occupy internal loading space?

A: The fan adopts side built-in structure, will not occupy the main loading area of the furnace cavity, no impact on workpiece stacking quantity.