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Box-type tempering furnace with left-right door opening
Box-Type Tempering Furnace (also known as Box-Type Hot Air Furnace) – a national standard, periodic, general-purpose box furnace equipped with an internal hot air circulation fan mounted on the roof. It is ideal for batch processing of springs, leaf springs, spring washers, copper products, chains, fasteners, automotive parts, military components, metal hardware, enameled wires, welding electrodes, and carburized/quenched parts for continuous tempering, shaping, and drying.
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Box-Type Tempering Furnace
A box-type tempering furnace is a batch-type industrial electric furnace designed for heat treatment processes such as tempering, solution treatment, annealing, and aging. It is widely used for alloy steel, carbon steel, stainless steel castings, ductile iron, and aluminum alloy die castings.
With electric heating and a forced hot air circulation system, this furnace ensures excellent temperature uniformity. It is essential equipment in machinery manufacturing, aerospace, automotive parts production, and R&D labs.
| Process | Purpose |
| Tempering | Reduces hardness of quenched steel, improves toughness and plasticity, relieves internal stress |
| Solution & Aging | Increases strength of aluminum alloys and other light alloys |
| Annealing / Normalizing | Available on select models for versatile production needs |
Materials & Industries
Materials processed:Alloy steel, carbon steel,Stainless steel castings,Ductile iron,Aluminum alloy die castings
Industries served:Machinery manufacturing,Automotive parts production,Aerospace component processing,Research institutions and labs
Important Usage Notes
Avoid 600–700℃ for stainless steel: Extended holding in this range may cause embrittlement phases, reducing corrosion resistance and toughness.
Plan for dimensional change: Stress relief during tempering may cause slight part movement. Precision components require machining allowance or fixturing.
Chamber / Box tape Tempering Furnace
Technical Specifications
| Parameter | Standard Value / Range |
| Max Operating Temperature | 650℃ |
| Temperature Control Accuracy | ±1℃ |
| Temperature Uniformity | ±5℃ |
| Rated Power | 60KW±10KW |
| Heating Method | Hot Air Circulation |
| Heating Element | OCr21Al5 Alloy Resistance Strip |
| Chamber Size (Typical) | 1520×1220×700 mm |
| Furnace Lining Structure | All-fiber structure, total thickness 240 mm |
| Control System | PID Self-tuning + Manual/Auto Dual Mode |
| Safety Design | Interlock Protection |
| Loading/Unloading System | Electric Hoist Door (0.5T) + Roller Conveyor |
| Application Scenarios | Tempering, Annealing, Aging of Molds, Gears, Engineering Plastic Components |
Why Choose This Furnace?
→ Batch operation with flexible loading
→ Uniform heating for repeatable heat treatment results
→ Energy-efficient fiber lining reduces operating costs
→ Reliable safety protection for operators
→ Suitable for both production and lab use
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