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Controlled atmosphere heat treatment system

Hydrogen AtmosphereTube Furnace forHeat Treatment & Sintering

A configured atmosphere tube furnace with a 1100°C continuous operating temperature for hydrogen reduction, protective-atmosphere heat treatment and selected sintering processes. The pictured HQH-1200 platform combines vacuum preparation, dual-zone temperature control, metered gas entry and monitored exhaust ignition in one compact industrial system.

1100°CContinuous operating temperature
450 x 500 mmEffective chamber size
10 PaUltimate vacuum
±1°CTemperature control accuracy
HQH-1200 hydrogen atmosphere tube furnace with integrated control cabinet
Compact retort-furnace platformFurnace, controls and gas-handling interfaces in one cabinet

Product overview

Control the atmosphere before, during and after the thermal cycle

This hydrogen atmosphere tube furnace is designed for processes where air exposure can change surface chemistry, oxidation state or final material performance. A sealed heated chamber supports vacuum evacuation before gas introduction, while a dual-zone controller manages the temperature profile across the effective work area.

The system supports hydrogen, nitrogen, argon and other controlled atmospheres selected around the material, gas purity, dew point and thermal process. The gas train, purge sequence and exhaust treatment can be engineered as an integrated process package. For vacuum-only high-temperature production, compare the wider vacuum sintering furnace range. For bright heat treatment without a sintering step, review our vacuum annealing furnace options.

A compact footprint, touchscreen operation and integrated auxiliaries make the HQH-1200 suitable for laboratories, pilot production and specialized industrial heat-treatment lines.

  1. 01
    Vacuum preparationEvacuate the chamber before introducing the selected process atmosphere.
  2. 02
    Metered gas entryA standard rotameter gas path provides visible flow control, with MFC and multi-line options available.
  3. 03
    Dual-zone heatingTwo 300 mm control zones support a more controlled thermal profile through the heated length.
  4. 04
    Monitored ignitionElectromagnetic pulse ignition and K-type thermocouple monitoring support controlled exhaust handling.
  5. 05
    Natural coolingNatural cooling provides a simple, stable cooldown stage, with other cooling arrangements available on request.

Process fit

Typical applications for a controlled hydrogen or inert atmosphere

Flexible chamber, gas-control and temperature-program options allow the furnace to be configured for a wide range of controlled-atmosphere thermal processes.

01 / REDUCTION

Hydrogen Reduction Heat Treatment

Support selected oxide-reduction and surface-conditioning cycles where gas purity, dew point and exhaust handling are part of the recipe.

Discuss reduction requirements
02 / POWDER

Powder Metallurgy Sintering

Evaluate controlled-atmosphere heating for metal powder compacts when binder system, loading method and target density are clearly defined.

Compare MIM debinding and sintering
03 / ANNEALING

Protective-Atmosphere Annealing

Limit oxidation or discoloration during selected annealing and stress-relief cycles under hydrogen, nitrogen, argon or a project-approved mixture.

View annealing furnace systems
04 / AM PARTS

Additive Manufacturing Post-Processing

Develop heat treatment or sintering routes for printed metal parts after confirming alloy, binder, part envelope and atmosphere sensitivity.

See additive manufacturing furnaces

Technical specifications

HQH-1200 Technical Specifications

The HQH-1200 combines a 1100°C continuous operating temperature with dual-zone control, vacuum preparation and configurable gas handling.

ParameterSpecificationConfiguration details
ModelHQH-1200Industrial controlled-atmosphere tube furnace platform.
Continuous operating temperature1100°CDesigned for continuous high-temperature heat treatment and sintering.
Effective chamber450 x 500 mmCustom work-zone sizes are available for different loads and fixtures.
Retort / tube sizeØ480 mm; effective length 600 mmLarge-diameter retort for batch processing and controlled gas flow.
Heating power12 kWEfficient resistance heating with programmable temperature control.
Installation voltage220 / 380 VElectrical configuration can be matched to the destination market.
Heating elementResistance wireServiceable heating structure designed for stable thermal performance.
Ultimate vacuum10 PaVacuum preparation helps remove residual air before atmosphere processing.
Cooling methodNatural coolingStable cooldown with a simple, low-maintenance system design.
Temperature controlDual-zone, 300 + 300 mmTwo independently controlled temperature zones.
Control accuracy±1°CPrecise temperature control for repeatable process recipes.
Human-machine interface7-inch touchscreenIntuitive operation, recipe control and alarm display.
Gas inletOne rotameter lineMFC control and additional gas lines are available as options.
Ignition methodElectromagnetic pulse ignition + K-type thermocouple monitoringIntegrated exhaust ignition and temperature monitoring.
Net weight460 kgCompact floor-standing equipment structure.
Overall size1220 x 1300 x 1700 mmEquipment size and chamber configuration can be customized.

Custom sizing available: the equipment envelope, chamber size, loading arrangement and service interfaces can be adapted to the workpiece, batch capacity and installation site.

Standard footprint1220 x 1300 x 1700 mm

Custom external dimensions and chamber sizes are available for different production layouts.

Electrical supply220 / 380 V

Electrical configuration is available for different destination markets and site requirements.

Safety and gas management

Engineered Hydrogen Safety and Gas Control

Hydrogen process systems can be configured with coordinated purge, gas monitoring, ignition, exhaust and interlock functions for stable controlled-atmosphere operation.

Purge sequenceProgrammable inert-gas pre-purge and post-purge support controlled atmosphere exchange.
Gas supervisionPressure, flow, purity and dew-point monitoring options support stable process conditions.
Valve architectureFail-safe shutoff, redundant valves and leak-test functions are available for hydrogen gas trains.
Exhaust treatmentIgnition monitoring, flame-loss response and exhaust treatment can be integrated into the system.
Site integrationInterfaces are available for ventilation, hydrogen detection, emergency stop and facility alarms.
Cooling interlocksWater-flow, temperature and pressure monitoring protect chamber and sealing interfaces.
Interior chamber of a hydrogen atmosphere tube furnace
Gas-tight process chamberSealed retort structure for vacuum preparation and atmosphere processing.
Industrial door and sealing hardware on a hydrogen atmosphere tube furnace
Door and sealing systemAccess, sealing and cooling interfaces affect safe repeated operation.
Effective work chamber for batch heat treatment in controlled atmosphere
Effective work areaLoad geometry and fixtures influence gas flow and thermal results.
Seven-inch touchscreen interface for atmosphere tube furnace operation
Touchscreen process controlClear recipe operation, status display and alarm management.

Integrated system scope

Complete Furnace System for Installation and Operation

The system combines the furnace body, touchscreen controls, water chiller, vacuum pump and exhaust ignition equipment in one coordinated package.

Core furnace

Furnace body and control system

HQH-1200 platform with dual-zone temperature control and a 7-inch touchscreen.

Vacuum system

VRD-8 vacuum pump

Integrated vacuum preparation for clean atmosphere exchange and thermal processing.

Cooling system

1.5P water chiller

Dedicated cooling support for chamber, sealing and process interfaces.

Gas and exhaust

Ignition device

Electromagnetic pulse ignition with K-type temperature monitoring.

Process flexibility

Gas composition and control

Hydrogen concentration, carrier gas, purity, flow range and gas-line quantity can be customized.

Quality control

Temperature and vacuum testing

Temperature, vacuum and process-reporting options support repeatable production.

Engineering questions

Hydrogen Atmosphere Tube Furnace FAQs

What is the continuous operating temperature of the HQH-1200?

The HQH-1200 is designed for continuous operation at 1100°C. Heating-zone design, chamber size, loading method and atmosphere configuration can be customized for the process.

Can this furnace run pure hydrogen?

Yes. The system can be engineered for pure hydrogen, diluted hydrogen and other controlled gas mixtures with the appropriate purge, valve, monitoring, ventilation and exhaust configuration.

Is ±1°C the same as temperature uniformity?

±1°C describes the temperature-control accuracy. Workspace uniformity can also be specified and tested according to the required load condition, sensor layout and process standard.

What information is needed for a technical quotation?

Send the material and part drawing, load envelope and weight, target temperature curve, hydrogen or inert-gas composition, gas flow and purity, vacuum target, production rate, cooling-time target, site utilities, local standards and required acceptance tests. Use the SYNHTE contact form to send the project brief.

Configure your furnace

Match the atmosphere, chamber and safety scope to your material

Share the part drawing, load size, temperature profile, gas composition, vacuum target and site standards. SYNHTE engineering will prepare a tailored furnace configuration and technical proposal.

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