Compact Pit-Type Furnace

Top-opening well-type electric furnace: 1200℃ constant temperature operation with linked temperature control of ±1℃. Adopting silicon carbide/molybdenum disilicide rods for surrounding heating and mullite fiber insulation, it is an industrial heat treatment equipment suitable for sintering high-temperature materials.

Vacuum Pit Furnace

Compact Pit-Type Furnace

Temperature:1200℃
Electric furnace:split type
Opening method:Top opening
Temperature Control Precision:±1℃
Temperature control points:3 points
Temperature control instrument:3 sets of temperature control systems

Product Video

Small Well-Type Furnace

A compact high-temperature heat treatment device designed for laboratories and small-batch production. It adopts a vertical well-type structure, featuring small footprint, high thermal efficiency, and easy operation. Suitable for material sintering, heat treatment, and other processes.

Key Features

  • Compact design: Small size saves laboratory space.
  • Energy efficiency: High-quality insulation materials enable fast heating and low energy consumption.
  • Precise temperature control: PID intelligent temperature control with ±1℃ accuracy.
  • Multi-atmosphere option: Compatible with inert/reducing gas injection.
  • Safe and reliable: Equipped with multiple protection systems.
Specification1200℃
Maximum Operating Temperature1200℃
Normal Operating Temperature1200℃
Temperature Control Precision±1℃
Furnace Chamber Uniformity±3℃ (see parameters in the heating control section for details)

Characteristics of Well-type Furnace

Furnace Top Door=
Working EnvironmentAnti-interference; furnace body temperature ≤50℃ at 1400℃, which greatly improves the working environment

External Structure Parameters

Shell MaterialThe shell is made of 100 angle steel and 20 cold-rolled steel plate
Shell Material TreatmentSpray-painted, corrosion-resistant, acid and alkali resistant, with a novel appearance
Heating Control PositionThe heating control cabinet is isolated from the furnace body and connected to the furnace body via a wire slot

Heating Control Parameters

Operating Voltage380V (three-phase)
PowerMaximum power (automatically adjusted according to furnace temperature and heating rate)
Microcomputer ControlProgrammable (heating curve), fully automatic heating, heat preservation, and cooling; multi-channel detection and protection, dual-loop protection, including overtemperature, overvoltage, overcurrent, thermocouple break, heating element damage detection, etc.
Voltage Regulator9 imported thyristor modules and high-voltage-resistant electrical appliances
Working Principle of Temperature Control Instruments3 sets of temperature control systems with 3 temperature control points communicate with each other to ensure simultaneous heating, simultaneous segment transition, simultaneous heat preservation, and simultaneous cooling. Each set is divided into three phases, and the voltage and current of each phase can be adjusted to achieve better furnace temperature uniformity.
Temperature Control Points3 points distributed on the upper, middle, and lower parts of the furnace body
Temperature MeasurementPlatinum-rhodium thermocouple (Type S, 0-1600℃)
Heating Time40-50 minutes (empty furnace) to reach the maximum temperature (1400℃) from room temperature
Distribution of Heating ElementsAround and at the bottom of the furnace chamber
Heating ElementsSilicon carbide rods / molybdenum disilicide rods
Optional Computer Control SystemReal-time data monitoring
(Operate the electric furnace and check its heating status in the office)
Maximum Control of 4 Electric Furnaces① Displays the current operating data and parameter settings of the electric furnace in two modes: numerical display and curve display. The green curve represents the set temperature curve of the current lower computer, and the red curve represents the actual temperature curve of the current lower computer.
② When viewing the trend graph, the temperature axis and time axis can be zoomed in or out, and a specific area in the graph can be enlarged for observation.
③ Over-temperature alarm for each measurement channel, with sound and color indicators during alarm.
④ Equipped with an electric furnace parameter curve library that can store up to 40 temperature curves. Users can view and modify any curve; any curve can be downloaded to the current lower computer for storage, or the program curve in the current lower computer can be uploaded to the curve library for storage.
⑤ When the lower computer is running, the system automatically saves its running time, actual temperature value, and set temperature value, forming a data file named after the system time at the start of operation for query.
Historical data monitoring
① Check the historical running time, actual temperature value, and set temperature value of the electric furnace.
② Check the curve trend graph of the actual temperature value and set temperature value of the electric furnace.
③ The temperature axis and time axis of the historical curve trend graph can be zoomed in or out, and a specific area in the graph can be enlarged for observation.

Furnace Chamber Parameters

Insulation Materials1. All insulation materials are made of alumina polycrystalline mullite fibers, with an energy-saving effect better than that of old-style electric furnaces (1600℃). The high-alumina fiber insulation material resists temperatures up to 1400℃. Both materials are produced by Luoyang Refractory Material Research Institute.
Furnace Bottom MaterialThe furnace bottom loading plate is made of refractory bricks, with excellent load-bearing capacity.

List of Optional Additional Functions

NameFunction IntroductionFunction Code
Temperature ControllerStandard 50-segment heating curve, optional imported controller (B)Choose one out of two.AB
Touch ScreenChinese menu, multi-curve storage, historical data recording (7-inch)Choose one out of two.C
IoT InterfaceRS485 communication for real-time data access (start/pause/stop/curves/timing)D
Computer Control SystemPC software for full furnace control (start/stop/curve setting/data logging). Supports data recording (1s-1h intervals), parameter adjustment, and long-term storage.E
PLC ControlSiemens PLC (controls heating curves, atmosphere, flow rates, power). Open ports for upstream/downstream equipment integration.F
Observation WindowHigh-temperature quartz glass window on furnace doorH
Gas Inlet Float flow meter + manual valve (selectable flow range/gas type)Choose one out of two.K
Digital mass flow controller (selectable flow range/gas type)M
Exhaust Manual exhaust valveChoose one out of two.T
Automatic electric valve (program-controlled by heating curve segments)P
Full Auto Gas ControlPLC-controlled electric valves synchronized with heating curves (requires touch screen option)Y
Casters2 swivel + 2 fixed wheelsR
Rapid CoolingProgram-controlled cooling with inverter + centrifugal fanN
Multi-zone Control+10% cost per additional heating zone, +20% for independent controlX
Stirring FanMetal fan (<1050°C):-4000; Inverter: -1500-2000; PLC-auto control: -4000Z
Separate Control CabinetIndependent cabinet (1600×600×400mm) with 5m control cablesQ
Heat-storage Base50mm recessed hollow base with multi-point support (+5% cost)W
Exhaust TreatmentVOC treatment furnace (40m³/h or 80m³/h options)V
Corrosion-resistant ChamberAcid/alkali/HF-resistant materialsG
Heating Element ProtectionProtective features against powder contamination and vapor corrosionL
Clean ChamberCeramic/glass/metal lining to prevent dust/vapor contaminationJ
Connect with Us Today
Phone Phone:+86-13937922703
Email Email:luoyanganjing@gmail.com