Our heat treatment equipment widely supports these manufacturing sectors:

1. Automotive fasteners & structural components

2. Precision stamping & hardware manufacturing

3. Powder metallurgy & MIM metal injection molding

4. Stainless steel, copper alloy & magnetic material processing

5. Mold, tool steel & casting heat treatment

1. Box Type Tempering Furnace | Batch low & medium temperature heat treatment

For quenching tempering, stress relief, aging treatment of alloy steel, die steel, spring steel.

2. Mesh Belt Bright Annealing Furnace | Continuous oxidation-free annealing

Stainless steel, copper alloy mirror-bright annealing with protective atmosphere.

3. Mesh Belt Powder Metallurgy Sintering Furnace | Debinding & sintering integrated line

Iron-based, copper-based powder alloy, magnetic parts continuous sintering.

4. Heavy-Duty Roller Mesh Belt Furnace | Large & heavy workpiece continuous heat treatment

5. Custom Non-Standard Heat Treatment Production Lines

According to hourly output, workshop layout, temperature curve and atmosphere requirements.

Project Location: Southeast Asia

Client Industry: Automotive Fastener Factory

Equipment Model: Box Type Tempering Furnace

Workpiece Material: Alloy structural steel

Core Client Challenges:

• Uneven temperature field leads to unstable hardness consistency

• High reject rate after tempering

• Limited workshop space, need compact layout

Our Custom Solution:

• Custom hearth dimension and independent multi-zone temperature control

• Optimized fiber lining for energy saving

• Upgrade sealing system to stabilize temperature uniformity within ±5℃

• Equipped with over-temperature safety interlock protection

Project Outcomes:

• Product qualification rate increased by 18%

• Energy consumption reduced by 22%

• Workpiece deformation effectively controlled

• Stable 24-hour continuous batch production

Project Location: Russia

Cooperating Client: Local large-scale automotive fastener manufacturing enterprise

Applied Equipment: Box Type Tempering Furnace (Batch Medium-Low Temperature Heat Treatment)

Processing Workpiece: High-strength alloy steel fasteners, bolts, spring steel structural parts

Client Background & Pain Points

The client focuses on automotive and engineering fastener mass production. Previously used old tempering equipment caused unstable temperature uniformity, inconsistent product hardness, high defective rate, and excessive energy consumption. The traditional furnace failed to meet stable batch production standards for high-strength fasteners and could not eliminate quenching residual stress completely.

Customized Solution by ReXin Machinery

According to the client’s batch production volume and workshop layout, we customized an upgraded box tempering furnace with multi-zone independent PID temperature control system. The furnace adopts composite aluminum silicate fiber insulation structure to reduce heat storage and heat loss. Optimized high-temperature sealing structure ensures internal temperature uniformity within ±5℃. Equipped with over-temperature alarm, power-off protection and door interlock safety device to adapt to long-term uninterrupted batch operation.

Project Operation Effect

• Stable tempering quality, consistent hardness of fastener batches, zero deformation of precision parts

• Product qualification rate increased from 87% to 98.5%

• Overall equipment energy consumption reduced by more than 20%

• Effectively eliminated quenching residual stress, improved fatigue resistance and service life of fasteners

• Realized standardized, safe and low-maintenance batch heat treatment production

Service Scope: Custom drawing design, factory pre-testing, export fumigation packaging, full set of customs documents, remote installation guidance and long-term after-sales support

Project Location: Thailand (Southeast Asia)

Cooperating Client: Stainless steel precision stamping and kitchen hardware manufacturer

Applied Equipment: Continuous Mesh Belt Bright Annealing Furnace (Protective Atmosphere Oxidation-Free Annealing)

Processing Workpiece: 201/304/316 stainless steel stamping parts, copper terminals, precision hardware accessories

Client Background & Pain Points

The Thailand-based manufacturer focuses on high-end stainless steel kitchen hardware and precision terminal parts for export markets. Their traditional open-type annealing equipment caused serious surface oxidation, black spots and color difference on finished workpieces after heat treatment. Unstable temperature curves led to inconsistent surface finish and material performance. Moreover, the old furnace could not support continuous automated production, resulting in low hourly output, high rework rate and restricted export order capacity.

Customized Solution by ReXin Machinery

To match the client’s high-standard export production requirements, we designed and manufactured a fully sealed continuous mesh belt bright annealing production line. The equipment adopts thickened 310S stainless steel muffle tube structure and decomposed ammonia protective atmosphere system to completely isolate external oxygen and avoid oxidation. Segmented PID multi-zone independent temperature control forms accurate and stable temperature gradient throughout the heating zone. Equipped with imported SUS314 high-temperature resistant mesh belt, circulating water rapid cooling system and gas air curtain sealing device, the whole line realizes stable, high-speed continuous feeding, heating and cooling, achieving perfect oxidation-free, scale-free and mirror-bright annealing effect.

Project Operation Effect

• All workpieces achieve uniform mirror-bright surface without oxidation, black spots or color difference

• Internal residual stress is fully released, greatly improving product ductility, toughness and service stability

• Fully automatic continuous feeding and discharging mode significantly boosts overall production efficiency

• Finished hardware products fully meet European and American high-end export appearance and performance standards

• Precise atmosphere and temperature control reduces product rework rate to nearly zero, lowering production cost

Service Scope: Process scheme customization, production line layout design, factory debugging, overseas logistics delivery, operation training and lifetime technical support

Project Location: Domestic Export-Oriented PM Factory (Serving Global MIM & PM Clients)

Cooperating Client: Professional powder metallurgy and MIM metal injection molding manufacturer

Applied Equipment: Mesh Belt Powder Metallurgy Dewaxing & Sintering Integrated Furnace

Processing Workpiece: Iron-based/copper-based powder metallurgy parts, motor magnetic components, MIM medical precision parts, oil-containing bearings

Client Background & Pain Points

The client faced unstable dewaxing effect, incomplete binder volatilization, inconsistent sintering density and low product qualification rate with traditional segmented equipment. Discontinuous production process restricted hourly output, and the temperature gradient could not meet the precision sintering requirements of high-density powder metallurgy workpieces.

Customized Solution by ReXin Machinery

We provided an integrated dewaxing and high-temperature sintering continuous production line. Adopting multi-stage temperature gradient zoning design: front section for low-temperature binder decomposition and volatilization, rear section for high-temperature precise sintering. The 310S thickened muffle tube ensures stable atmosphere and temperature field. Equipped with professional ammonia decomposition gas supply system and three-section water cooling structure to ensure uniform cooling and stable workpiece size. The frequency conversion speed regulation system adapts to different workpiece sintering cycle requirements.

Project Operation Effect

• Complete and uniform dewaxing, no residual binder inside workpieces

• Sintering density uniform and stable, product dimensional tolerance strictly controlled

• Greatly improved the qualification rate of powder metallurgy and MIM precision parts

• Integrated continuous production saves workshop space and labor costs

• Stable equipment operation, low failure rate, suitable for long-term mass production

Service Scope: PM process customization, non-standard furnace size design, equipment factory testing, complete after-sales maintenance system and spare parts guarantee

Project Location: Bangladesh

Cooperating Client: Large-scale mass-production hardware & standard fastener manufacturing factory

Applied Equipment: Muffle-Free Roller Mesh Belt Furnace (Low-cost Mass Production Continuous Heat Treatment Line)

Processing Workpiece: Low-carbon steel stamping parts, ordinary hardware fasteners, small metal structural accessories

Client Background & Pain Points

The Bangladesh client focuses on mass standardized hardware production for local construction and machinery markets. Traditional muffle-type mesh belt furnaces suffered frequent muffle tube aging, deformation and high replacement costs, resulting in high long-term operation and maintenance expenses. The old equipment had low continuous production efficiency and unstable temperature uniformity, which could not meet large-volume, low-margin standardized annealing and stress relief production demands.

Customized Solution by ReXin Machinery

We customized an upgraded muffle-free roller mesh belt continuous heat treatment production line for the client. Canceling the traditional 310S stainless steel muffle tube structure, adopting integrated high-purity ceramic fiber hearth and full roller support design. Equipped with multi-segment balanced upper and lower heating system and precise zoning temperature control, ensuring stable temperature field. Matched with multi-stage water cooling and gas air curtain sealing device to avoid heat loss and oxidation. The whole line features zero muffle replacement cost, energy-saving and maintenance-free, perfectly adapting to the client’s long-term mass standardized production.

Project Operation Effect

• Eliminated regular muffle tube replacement cost, reduced annual equipment maintenance cost by 30%

• Stable furnace temperature uniformity ensures consistent workpiece hardness and qualified rate

• Realized 24-hour uninterrupted continuous production, greatly improved mass production capacity

• Low heat storage and energy-saving structure reduced overall power consumption effectively

• Simple structure and low failure rate, lowering technical threshold for local workers’ daily operation

Service Scope: Production line process customization, non-standard size design, factory pre-commissioning, export fumigated packaging, full customs documents, remote installation guidance and long-term after-sales maintenance service

Project Location: India

Cooperating Client: Large-scale stainless steel stamping and precision hardware manufacturing enterprise

Applied Equipment: Continuous Mesh Belt Bright Annealing Furnace

Processing Workpiece: 201, 304, 316 stainless steel stamped parts, kitchen hardware, precision terminal components and decorative metal accessories

Client Background & Pain Points

The Indian client specializes in mass production of stainless steel hardware for domestic and export markets. The original annealing equipment adopted open heating structure, causing serious surface oxidation, yellow discoloration and uneven softening. Unstable temperature gradient led to inconsistent material ductility and high defective rate. In addition, the old production line could not support continuous automated operation, resulting in low hourly output and restricting business expansion.

Customized Solution by ReXin Machinery

We designed and manufactured a full-automatic continuous bright annealing production line with sealed 310S stainless steel muffle tube for the client. The equipment adopts high-purity nitrogen and decomposed ammonia dual protective atmosphere system to completely isolate outside oxygen. Multi-section independent PID temperature control ensures precise temperature gradient throughout the heating zone. Equipped with imported SUS314 high-temperature resistant mesh belt and segmented circulating water cooling system, realizing stable high-speed continuous feeding, heating, annealing and rapid cooling. The whole line achieves fully oxidation-free, mirror-bright annealing effect to meet high-standard export requirements.

Project Operation Effect

• Completely eliminated surface oxidation, black spots and color difference, realizing mirror-bright surface finish

• Uniform internal stress release and stable material ductility greatly reduced product cracking and deformation rate

• Fully automatic continuous operation improved production efficiency by more than 35%

• Stable atmosphere control and temperature field improved product qualification rate to over 99%

• Qualified finished products fully meet European and American export inspection standards

Service Scope: Production line process design, atmosphere system customization, equipment manufacturing and pre-testing, export-standard packaging, complete customs clearance documents, remote installation & commissioning guidance and long-term after-sales support

Project Location: Malaysia (Southeast Asia)

Cooperating Client: Professional continuous fastener and stamping hardware mass production factory

Applied Equipment: Continuous Mesh Belt Tempering Furnace (Automatic Continuous Low & Medium Temperature Heat Treatment Line)

Processing Workpiece: Carbon steel fasteners, bolts, screws, stamped hardware parts and small mechanical fittings

Client Background & Pain Points

The Malaysia client focuses on mass continuous production of standard fasteners for construction, machinery and electronic industries. Previously using batch box tempering furnaces, the production efficiency was low and unable to match their high-volume continuous output. Manual trolley loading caused unstable tempering time, inconsistent hardness and slight workpiece deformation. In addition, discontinuous production led to high labor cost and long production cycle, restricting factory capacity expansion.

Customized Solution by ReXin Machinery

According to the client’s continuous production requirements, we customized a fully automatic mesh belt tempering production line. The equipment adopts multi-zone independent PID intelligent temperature control to form uniform and stable temperature field. Optimized mesh belt transmission system realizes stepless frequency speed regulation, ensuring consistent heating time for each batch of workpieces. Equipped with high-efficiency heat insulation structure and circulating air balance system, which improves tempering uniformity and saves energy. The full-automatic feeding and discharging design completely solves the instability caused by manual operation and perfectly adapts to the client’s 24-hour continuous mass tempering production.

Project Operation Effect

• Realized fully automatic continuous tempering, production efficiency increased by 40% compared with traditional box furnace

• Workpiece hardness uniformity and mechanical stability significantly improved, zero batch difference

• Effectively eliminated quenching residual stress, reduced workpiece deformation and cracking rate

• Automated production greatly reduced manual labor cost and improved production standardization

• Stable equipment operation, low failure rate, fully meeting long-term high-yield production demands

Service Scope: Continuous production line process customization, mesh belt width & speed parameter adjustment, temperature zone layout optimization, factory pre-testing, export-standard fumigated packaging, full set of customs documents, overseas remote guidance and long-term after-sales service

Project Location: Vietnam (Southeast Asia)

Cooperating Client: Professional manufacturer of stainless steel components, refrigeration accessories and precision brazed parts

Applied Equipment: Continuous Mesh Belt Stainless Steel Brazing Furnace (Protective Atmosphere Brazing Treatment Line)

Processing Workpiece: Stainless steel kitchen components, refrigeration copper-stainless steel composite parts, precision hardware brazed assemblies

Client Background & Pain Points

The Vietnamese client focuses on OEM & export-grade stainless steel and refrigeration component production. Their old brazing equipment adopted open heating without stable protective atmosphere, resulting in serious oxidation, dark weld seams and unstable brazing strength. Uneven furnace temperature led to high defective rate and poor product consistency. Discontinuous batch production limited output capacity, failing to meet large-scale export order demands and causing high rework costs.

Customized Solution by ReXin Machinery

We customized a fully automatic continuous mesh belt brazing furnace with precise atmosphere control for the client’s high-standard brazing process. The whole line adopts fully sealed furnace body and high-purity nitrogen protective atmosphere system to completely isolate air oxidation and ensure bright and clean brazing seams. Multi-zone segmented PID independent temperature control accurately matches the heating, brazing and cooling temperature curves of stainless steel and copper composite workpieces. Equipped with high-temperature resistant mesh belt steady transmission system and graded slow cooling structure, it avoids brazing crack and residual stress, realizing one-time continuous forming of high-quality brazed products.

Project Operation Effect

• Workpiece brazing seams are bright, smooth and oxidation-free, fully meeting export appearance standards

• Brazing strength and structural stability are greatly improved, zero virtual welding & desoldering defects

• Precise temperature and atmosphere control reduced product defective rate to below 1.2%

• Automatic continuous production mode greatly improved hourly output and shortened delivery cycle

• Stable long-term operation, low maintenance frequency, effectively reducing overall production costs

Service Scope: Brazing process customization, atmosphere & temperature curve optimization, production line layout design, factory pre-commissioning, export-standard fumigated packaging, complete customs documents, overseas remote guidance and lifelong after-sales technical support

• Process communication & production requirement evaluation

• 2D/3D drawing design & technical parameter confirmation

• In-house manufacturing & factory running test

• Export-standard shockproof fumigated packaging

• Global sea/land transport & complete customs documents

• Overseas remote guidance / optional on-site commissioning

• Long-term after-sales & spare parts support

✔ Rich overseas project delivery experience, familiar with international logistics & customs clearance

✔ One-stop non-standard furnace design, no off-the-shelf fixed limited models

✔ ISO 9001 / ISO14001 / ISO45001 triple certified manufacturing

✔ Stable temperature control performance, low failure rate & easy maintenance

✔ 24/7 global technical support, 12-month full machine warranty

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