HM-4-12A Vacuum Tube Furnace

Product Introduction

HM-4-12A is a vacuum tube furnace for universities, scientific research institutes, and industrial or mining enterprises that need high-temperature material treatment with controlled gas or vacuum-tube operation. The furnace accepts a high-purity quartz or high-purity alumina corundum tube, with horizontal or vertical installation available across the documented series. This model uses a Φ40*440 furnace size (excluding tube length), a 1200°C maximum temperature, 4kw power, and 220V supply. The 1200°C series uses resistance wire and a K-type (0-1200°C) measurement system. Single-, double-, three-, or five-zone configurations can be selected at equipment level, while a rotating and tilting system can also be added to the furnace body. An intelligent controller supports 30-50 segment programmable PID self-tuning, automatic heating, and automatic cooling. Inlet gas control, a vacuum gauge, a vacuum pump, and 304 stainless-steel flanges support the documented atmosphere-oriented heating work. Compare the HM-4-12A product page when planning tube size, temperature class, and installation.

Applications / Testing Items

• Atmosphere-protected sintering for 1200°C-class material work.
• Atmosphere reduction studies in universities and scientific research institutes.
• Ceramic and refractory-material development with controlled heating.
• Metallurgical, electronic, glass, chemical, and mechanical material research.
• New-material development, special-material work, and building-material research.
• Small-batch production and teaching within the documented application scope.

Functional Performance / Features

1. This configuration reaches a maximum temperature of 1200°C and has a documented operating temperature of ≤1100°C.
2. HM-4-12A uses a Φ40*440 furnace size (excluding tube length).
3. The listed electrical configuration is 4kw with a 220V supply.
4. The 1200°C family uses resistance wire with K-type (0-1200°C).
5. The model's external dimensions are 420*740*668 mm, supporting installation planning around the selected furnace size.
6. Temperature control accuracy is specified as ±1°C.
7. The heating rate is freely set from 0-20°C/min, with ≤10°C/min recommended.
8. The intelligent controller provides 30-50 segment programmable PID self-tuning, automatic heating, and automatic cooling.
9. Gas control can include one or more inlet ports with ball valves, a vacuum gauge, a vacuum-pumping port, and one vacuum pump.
10. Integrated circuit and module control provide deviation-temperature, over-temperature, broken-thermocouple, and overcurrent protection.

Main Parameters

Parameter	Specification
Maximum temperature	1200°C
Furnace size (excluding tube length)	Φ40*440 mm
External dimensions (mm)	420*740*668
Power	4kw
Voltage	220V
Documented operating temperature	≤1100°C
Temperature control accuracy	±1°C

Technical Parameters

Parameter	Specification
Furnace tube	High-purity quartz or high-purity alumina corundum tube
Tube installation	Horizontal or vertical installation
Temperature zones	Single, double, three, or five zones
Furnace body option	Rotating and tilting system
Heating element	resistance wire
Thermocouple and measurement range	K-type (0-1200°C)
Heating rate	0-20°C/min, freely set; recommended ≤10°C/min
Available gases	All inert gases, mixed gases, nitrogen, oxygen, carbon monoxide, and hydrogen
Gas control	One or more inlet ports with ball valves, one vacuum gauge, and a vacuum-pumping port connected to a vacuum pump
Sealing method	304 stainless-steel flange with double sealing; resistant to oxidation, acid, and alkali
Chamber material	Lightweight alumina ceramic fiber
Temperature control	Intelligent controller with 30-50 segment programmable PID self-tuning, automatic heating, and automatic cooling
Safety protection	Deviation-temperature, over-temperature, broken-thermocouple, and overcurrent protection
Optional control	RS-485 communication interface and control software for computer-based operation, heating-curve setting, storage, and historical-curve recording
Included accessories	One vacuum pump, one pair of crucible tongs, one pair of high-temperature gloves, and one user manual
Certifications	CE and ISO9001:2015 quality management system certification
Warranty and service	Furnace body warranty: one year, excluding heating elements and wearing parts; lifetime maintenance

Expert Review

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