The programmable high-temperature furnace, also known as the programmable box-type electric furnace or integrated programmable high-temperature furnace, features a silicon carbide inner chamber for excellent wear resistance. The furnace heats from all four sides—top, bottom, left, and right—ensuring good temperature uniformity. The outer shell is made of cold-rolled steel with a sprayed plastic finish, giving it an aesthetically pleasing appearance.

The control unit uses a fully automatic multi-band LTDE programmable instrument with adjustable heating rates. The PID+SSR system enables synchronous and coordinated control, ensuring consistency and reproducibility for any test or experiment. It includes automatic constant temperature and time control functions, along with secondary over-temperature protection for reliable and safe operation. The control unit is located below the chamber and is integrated into the design. Electrical connections between the furnace body and the temperature controller are completed before shipment, allowing for immediate use upon power connection. It is suitable for universities, research institutions, laboratories, and production facilities for applications such as elemental analysis, material ashing, high-temperature sintering, small steel part quenching, annealing, tempering, as well as crystal, jewelry, and mirror coating processes.

Detailed Specifications:

I. Product Technical Parameters

Temperature Range: 100 ~ 1200°C

Working Dimensions: 200*120*80 mm

External Dimensions: 510*420*660 mm

Temperature Fluctuation: ±2°C

Display Accuracy: 1°C

Heating Rate: ≤10°C/min (adjustable to any rate below 10°C per minute)

Total Power: 2.5 kW

Power Supply: 220V, 50Hz

II. Temperature Control System

2.1 Temperature Measurement: S-type platinum-rhodium thermocouple

2.2 Control System: LTDE fully automatic programmable instrument with PID adjustment and 1°C display accuracy

2.3 Electrical Components: Brand contactors and solid-state relays

2.4 Time Control: Adjustable heating time and constant temperature time control; automatic shutdown when constant temperature time is reached

2.5 Over-Temperature Protection: Built-in secondary over-temperature protection device for dual safety

2.6 Operation Modes: Full-range adjustable constant temperature operation; program operation

III. Furnace Structure and Materials

3.1 Furnace Shell Material: Outer shell made of high-quality cold-rolled steel treated with phosphate film salt and high-temperature spray coating in computer gray color

3.2 Furnace Chamber Material: Silicon carbide inner chamber with excellent wear resistance; heating from all four sides

3.3 Insulation Method: Insulating bricks and insulating wool

3.4 Thermocouple Port: Thermocouple enters from the upper rear of the furnace body

3.5 Terminal Blocks: Heating element terminal blocks located at the lower rear of the furnace body

3.6 Controller: Located below the furnace body, with built-in control system and compensation wires connected to the furnace

3.7 Heating Elements: High-temperature resistance wires

3.8 Total Weight: Approximately 120 kg

3.9 Standard Packaging: Wooden case

IV. Included Technical Documentation and Accessories

4.1 Operation Manual

4.2 Product Warranty Card

V. After-Sales Service

5.1 Remote technical guidance for users

5.2 Timely provision of spare parts and accessories

5.3 Technical consultation and support during equipment use

5.4 Immediate response within 8 working hours upon receiving customer fault notification

VI. Main Components

LTDE Programmable Control Instrument

Solid-State Relay

Intermediate Relay

Thermocouple

High-Temperature Heating Wire