WONDERY Delivers RJ2-45-6 Precision Pit-type Tempering Furnace to Vietnam
WONDERY Delivers RJ2-45-6 Precision Pit-type Tempering Furnace to Vietnam
2026-03-26
Project Background and Core Process Requirements
WONDERY recently delivered an RJ2-45-6 pit-type electric resistance furnace to a client in Vietnam. The customer, Mia Nguyen, primarily processes small and medium-sized metal or alloy parts. Given the standard operating range of 200-550 ℃, the client emphasized strict temperature uniformity to ensure consistent mechanical properties during tempering and stress relief.
Technical Solutions and Parameterized Evidence
1. High-Precision Temperature Field Control (±5 ℃ Uniformity)
To counteract typical vertical temperature gradients in pit furnaces, the equipment integrates a robust hot air circulation system:
Circulation Power: Equipped with a 2.2 KW air-cooled centrifugal fan
Air Duct Design: Constructed from 3mm thick 304 stainless steel with an inner diameter of 700mm to ensure optimal airflow penetration.
Control Logic: Utilizes a Japanese Shimaden intelligent PID controller paired with SCR power regulation, achieving instrument control accuracy of ±1 ℃. The temperature field uniformity in the working area is maintained within ±5 ℃.
2. Energy-Efficient All-Fiber Lining Construction
To address long-term operational energy costs, WONDERY optimized the insulation structure:
Material Standard: High-quality aluminosilicate refractory fiber sourced from Shandong Luyang.
Construction Process: Fiber folded blocks undergo secondary pre-compression to a density of ≥230 kg/m³.
Insulation Performance: With a total insulation thickness of 240 mm, the exterior wall temperature remains ≤35 ℃ during operatio
3. Reliability Design of Heating Elements
The installation method of heating elements directly impacts service life:
Installation: The corrugated resistance bands are secured via specialized high-alumina ceramic screws. This design eliminates the risk of thermal short circuits between the elements and the furnace shell while facilitating easy maintenance.
Delivery Standards and Deliverables
Effective Working Dimensions: Ø 700 × 900 mm.
Automation: 10.1-inch touchscreen control system featuring process storage, historical data recording, and over-temperature alarms.
Safety Interlocks: Automatic power-off device for the ventilation fan and heating elements upon furnace lid opening to prevent operational accidents.
WONDERY Delivers RJ2-45-6 Precision Pit-type Tempering Furnace to Vietnam
WONDERY Delivers RJ2-45-6 Precision Pit-type Tempering Furnace to Vietnam
Project Background and Core Process Requirements
WONDERY recently delivered an RJ2-45-6 pit-type electric resistance furnace to a client in Vietnam. The customer, Mia Nguyen, primarily processes small and medium-sized metal or alloy parts. Given the standard operating range of 200-550 ℃, the client emphasized strict temperature uniformity to ensure consistent mechanical properties during tempering and stress relief.
Technical Solutions and Parameterized Evidence
1. High-Precision Temperature Field Control (±5 ℃ Uniformity)
To counteract typical vertical temperature gradients in pit furnaces, the equipment integrates a robust hot air circulation system:
Circulation Power: Equipped with a 2.2 KW air-cooled centrifugal fan
Air Duct Design: Constructed from 3mm thick 304 stainless steel with an inner diameter of 700mm to ensure optimal airflow penetration.
Control Logic: Utilizes a Japanese Shimaden intelligent PID controller paired with SCR power regulation, achieving instrument control accuracy of ±1 ℃. The temperature field uniformity in the working area is maintained within ±5 ℃.
2. Energy-Efficient All-Fiber Lining Construction
To address long-term operational energy costs, WONDERY optimized the insulation structure:
Material Standard: High-quality aluminosilicate refractory fiber sourced from Shandong Luyang.
Construction Process: Fiber folded blocks undergo secondary pre-compression to a density of ≥230 kg/m³.
Insulation Performance: With a total insulation thickness of 240 mm, the exterior wall temperature remains ≤35 ℃ during operatio
3. Reliability Design of Heating Elements
The installation method of heating elements directly impacts service life:
Installation: The corrugated resistance bands are secured via specialized high-alumina ceramic screws. This design eliminates the risk of thermal short circuits between the elements and the furnace shell while facilitating easy maintenance.
Delivery Standards and Deliverables
Effective Working Dimensions: Ø 700 × 900 mm.
Automation: 10.1-inch touchscreen control system featuring process storage, historical data recording, and over-temperature alarms.
Safety Interlocks: Automatic power-off device for the ventilation fan and heating elements upon furnace lid opening to prevent operational accidents.
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