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{"title":"Heat Treatment 1000mm\/min Aluminum Brazing Furnace CE certificate","imgUrl":"https:\/\/img.chinax.com\/nimg\/2a\/fc\/632b5e2de2e096d4aca1cf244a34-200x200-1\/heat_treatment_1000mm_2fmin_aluminum_brazing_furnace_ce_certificate.jpg","attrs":{"Brand Name":"Sunhope","Place of Origin":"Guangdong,china","Minimum Order Quantity":"1set","Price":"negotiable"}}
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Pressure rising rate ≤0.3 Pa/h, ultimate vacuum 4×10⁻¹ Pa
Automation Flexibility
Touch screen/industrial computer options, supports manual/fully automatic control modes
Brand Name
Sunhope
Model Number
ZLQ-ZQ
ZLQ-ZQ Single Chamber Vacuum Gas-Carrier Aluminum Brazing Furnace Energy Saving Fast Cycle
Product Overview
The ZLQ-ZQ series single chamber vacuum gas-carrier aluminum brazing furnace is purpose-built for high-efficiency brazing of automotive and industrial heat exchangers, including intercoolers, oil coolers, radiators, evaporators, condensers, radar grid antennas, waveguides, and various plate-fin or tube-fin assemblies. By utilizing low-vacuum constant-pressure inert gas protection in place of traditional high-vacuum processing, it significantly shortens evacuation time and accelerates part heating. An external circulating cooling fan further reduces the cooling stage, bringing the total working cycle down to approximately 3.5 hours — nearly half that of conventional high-vacuum brazing. The fully automatic process covers loading, evacuation, inert gas cycling, heating, brazing, forced cooling, and unloading, all with continuous pressure and real-time energy monitoring. Each furnace can be customized in working zone dimensions, load capacity, heating power, and control configuration to match specific production demands.
Key Advantages
Fast cycle time – completes a full cycle in about 3.5 hours, compared to 6–8 hours for traditional high-vacuum brazing
Energy efficient – consumes approximately 450 kWh per cycle, far lower than high-vacuum processes, with real-time energy monitoring
Faster cooling – external circulating cooling fan improves cooling rate and shortens time to unload
±3°C temperature uniformity across the entire working zone for consistent brazing quality
Flexible automation – choose touch screen or industrial computer for manual or fully automatic control
Customizable dimensions, load capacity, heating power, and control system to suit your parts and throughput requirements
Technical Specifications
Model
Effective Working Dimensions (mm)
Load Capacity (kg)
Temperature Uniformity (±°C)
Pressure Rising Rate (Pa/h)
Maximum Temperature (°C)
Heating Power (kW)
Ultimate Vacuum (Pa)
ZLQ-300ZQ
2400×800×800
1000
±3
0.3
800
300
4×10⁻¹
ZLQ-350ZQ
2400×1000×1000
1200
±3
0.3
800
350
4×10⁻¹
ZLQ-400ZQ
2400×1300×1100
2000
±3
0.3
800
400
4×10⁻¹
ZLQ-500ZQ
2400×1300×1300
2500
±3
0.3
800
500
4×10⁻¹
Custom working zone sizes, load capacities, and heating powers are available upon request.
Process Introduction
Open the furnace to let the workpieces in and close the door.
Open the bypass valve,start vacuum.
When the furnace vacuum degree is ≤670pa, start the roots pump.
When the vacuum degree in the furnace reaches ≤3Pa, start heating, after heating to the furnace temperature > 360 ℃, close the vacuum valve of the main pump, turn off the roots pump and mechanical pump, open the bypass pump - open the bypass valve and slow charging valve, the system automatically fills and evacuates, keeps the pressure in the furnace within a certain range, and carries out inert gas replacement.
During the heating, the furnace body is always kept in a certain pressure range for cyclic replacement, and the filling rhythm is adjusted by the furnace pressure control system and the micro-charging system, and the program is completed automatically.
Heating, heat preservation and brazing end power off to stop heating.
When the furnace and furnace temperature are cooled off to about 580 degrees, shut off the bypass valve, shut off the micro-charging valve, open the inflation valve to inflate to 0.6 bar and start the air-cooled motor cooling, wait for the furnace temperature to drop to about 450 degrees, turn off the air-cooled motor.
Open the bleed valve to balance the pressure outside the furnace in the furnace, prepare for the furnace, wait until the furnace pressures restored to the atmospheric pressure, then close the furnace bleeder valve (automatical delay control). Open the door in place, remove the workpieces, and close the furnace in place.
The whole process control is completed by fully automatic control.
About SUNHOPE
For over 15 years, SUNHOPE has been a leading manufacturer and developer specializing in automotive radiator and condenser components, exporting globally. Our expertise encompasses the entire radiator production line.
Core Services & Capabilities
Factory Setup Support: We assist international clients in establishing local radiator/condenser manufacturing plants, providing tailored solutions based on 15+ years of industry knowledge.
Comprehensive Equipment Supply: We supply complete production lines (including CKD kits) and offer pre-sales & after-sales technical support. Our engineers provide on-site installation guidance.
Full Component Supply: SUNHOPE is your single source for all essential radiator and condenser hardware and plastic components, guaranteeing supply chain reliability and finished product quality.
Technical Expertise: As equipment users ourselves, we possess deep operational understanding, enabling us to quickly identify and resolve potential production issues.
Why Partner with SUNHOPE?
Extensive Mould Inventory: Over 200 proprietary head plate moulds covering most popular global vehicle models.
Equipment Expertise: 10+ years of hands-on radiator manufacturing experience allows us to recommend and source optimal machinery for your needs.
Superior After-Sales Support: Strong partnerships with equipment providers ensure prompt and effective service. Our user perspective enables faster, more accurate problem-solving.
True One-Stop Solution: From factory design, equipment supply, and component sourcing to technical support - SUNHOPE delivers seamless integration for successful radiator production startup and operation.
Our company has been engaged in the manufacture and development of auto radiator condenser products for more than 15 years. Most of the products are sold to various countries and regions in the world, and we have accumulated rich production experience.
With the development of the heat exchanger indu... Our company has been engaged in the manufacture and development of auto radiator condenser products for more than 15 years. Most of the products are sold to various countries and regions in the world, and we have accumulated rich production experience.
With the development of the heat exchanger indu...
