Global Customer Case Studies | Industrial Heat Treatment Furnace Projects

Global Customer Case Studies | Industrial Heat Treatment Furnace Projects

Founded in 2008, Dongguan Rexin Machinery Technology is a professional manufacturer and solution provider of customized industrial heat treatment furnaces. With 18 years of R&D and manufacturing experience, we have delivered stable, energy-saving, and high-precision heat treatment equipment for metal processing, powder metallurgy, automotive parts, hardware manufacturing and aerospace industries across 9 core overseas markets and more than 50 countries worldwide.

All cases displayed below are authentic completed overseas projects, covering full-series heat treatment equipment including sintering furnaces, annealing furnaces, tempering furnaces, vacuum quenching furnaces, brazing furnaces and aluminum alloy heat treatment furnaces. We provide one-stop customized services including project scheme design, 3D workshop layout, equipment production, overseas installation guidance and lifelong after-sales technical support.

Global Project Strength Overview

1.Global Service Layout: Mature project implementation experience in Russia, Vietnam, Thailand, India, Malaysia, Germany, USA, Turkey and Mexico

2.Project Scale: 2000+ successful furnace installation cases for industrial mass production

3.Customization Advantage: Non-standard customized design tailored to local industrial standards, workshop conditions, workpiece materials and production capacity requirements

4.Energy-Saving & Stable Performance: Optimized heating structure and intelligent atmosphere control system, helping global customers reduce energy consumption by 30% on average

5.Global Support: Multi-language technical support, remote commissioning guidance and standardized overseas after-sales service system

Case 1: Russia | Powder Metallurgy Continuous Sintering Furnace Project

Cooperating Industry: Powder metallurgy automotive structural parts, gear and bearing manufacturing

Customized Equipment: Continuous Mesh Belt Powder Metallurgy Sintering Furnace

Working Temperature Range: 20℃ ~ 1150℃

Technical Parameters

Project Background

This local Russian manufacturer specializes in mass production of powder metallurgy gears, bearings and automotive structural components. The original outdated sintering equipment suffered from uneven heating, unstable product quality, high gas consumption and low production efficiency, failing to meet the customer’s growing demand for standardized large-scale continuous production. The customer required high-stability sintering equipment with precise atmosphere control to improve product qualification rate and reduce production costs.

Customer Pain Points

1.Disordered internal temperature distribution leads to unstable sintering density and low finished product qualification rate

2.Traditional equipment has high gas energy consumption, resulting in long-term high production costs

3.Intermittent production mode cannot support 24-hour uninterrupted mass production

Customized Solution

According to the customer’s actual workpiece size, hourly output and on-site workshop layout, Rexin customized a fully automatic mesh belt sintering furnace with independent nitrogen-hydrogen protective atmosphere system. The equipment adopts segmented zoned temperature control technology to realize independent precise temperature adjustment in each heating zone. Equipped with an intelligent automatic atmosphere supply system, it completely avoids workpiece oxidation and ensures consistent sintering density of each batch of products. Meanwhile, we provided professional 3D workshop layout drawings to optimize equipment installation and save factory space.

Project Achievements

The equipment has been operating stably long-term with zero failure. It realizes 24-hour uninterrupted continuous production, increases the customer’s product qualification rate to 98%, and reduces comprehensive energy consumption by 30%. The stable and standardized sintering quality fully meets the mass production standards of automotive powder metallurgy parts, winning long-term strategic recognition and repeat order cooperation from the Russian client.

Case 2: Vietnam | Stainless Steel Bright Annealing Furnace Project

Cooperating Industry: Stainless steel pipe, strip and hardware accessory processing

Customized Equipment: Continuous Mesh Belt Bright Annealing Furnace

Working Temperature Range: 20℃ ~ 1100℃

Technical Parameters

Project Background

The Vietnamese client is a large local stainless steel processing enterprise, mainly producing stainless steel decorative pipes, industrial strips and hardware accessories for Southeast Asian market supply. The customer needed professional annealing equipment to eliminate internal stress of stainless steel workpieces, improve metal toughness and plasticity, and required zero-oxidation bright surface effect to avoid secondary polishing processing.

Customer Pain Points

1.Ordinary annealing equipment causes severe surface oxidation and dark color, reducing product market competitiveness

2.Traditional intermittent production restricts production capacity expansion and cannot meet large order demands

3.Bulky equipment structure cannot adapt to the customer’s compact workshop layout

Customized Solution

Rexin customized a compact high-efficiency continuous mesh belt bright annealing production line with independent hydrogen protective atmosphere system. The equipment features uniform overall heating, fast temperature response and flexible speed adjustment. The optimized streamlined structure saves workshop space greatly. We provided complete 3D installation layout solutions and remote installation guidance to ensure fast and stable equipment commissioning.

Project Achievements

After formal operation, all stainless steel workpieces achieve perfect bright oxidation-free surface without secondary polishing, greatly saving labor and processing costs. The fully continuous assembly line mode improves production efficiency by more than 50%, helping the customer rapidly expand market share in Vietnam and surrounding Southeast Asian countries with high-quality finished products.

Case 3: Thailand | Automotive Parts Atmosphere Brazing Furnace Project

Cooperating Industry: Automotive radiator, copper-aluminum alloy parts brazing processing

Customized Equipment: Continuous Atmosphere Mesh Belt Brazing Furnace

Working Temperature Range: 20℃ ~ 1180℃

Technical Parameters

Project Background

This Thai enterprise is a core supporting supplier for local automobile manufacturers, focusing on the processing and production of automotive aluminum radiators and copper alloy hardware parts. The traditional manual auxiliary brazing process had unstable temperature control, frequent false welding and virtual welding problems, low automation and limited output, which could not meet the growing batch order demands of local automotive supporting markets.

Customer Pain Points

1.Unstable brazing temperature leads to inconsistent welding quality and high defective rate

2.Low automation requires a lot of manual intervention, resulting in high labor costs

3.Poor welding consistency affects product assembly accuracy and customer delivery credibility

Customized Solution

Rexin customized a fully automatic continuous mesh belt brazing furnace with intelligent constant temperature control system and independent protective atmosphere device. The equipment realizes one-stop automatic feeding, constant-temperature brazing and cooling discharging. The precise zoned temperature control ensures uniform heating and firm welding of each workpiece, completely solving the problem of false welding. It supports long-term large-scale continuous production to match the customer’s batch order demands.

Project Achievements

The automatic production line greatly reduces manual operation intervention, lowers the product defective rate below 0.5%, and doubles daily production capacity. Stable and consistent brazing quality helps the customer stabilize long-term cooperative orders with local automobile factories, effectively improving corporate profitability and market competitiveness.

Case 4: India | Precision Mold Tool Steel Tempering Furnace Project

Cooperating Industry: Precision mold, alloy tool steel processing and manufacturing

Customized Equipment: Energy-Saving Box-Type Tempering Furnace

Working Temperature Range: 20℃ ~ 1100℃

Technical Parameters

Project Background

The Indian customer is a professional precision mold manufacturing enterprise, mainly producing industrial molds and alloy steel cutting tools. After quenching treatment, mold and tool steel parts are prone to internal residual stress, resulting in workpiece deformation, cracking and dimensional deviation. The customer needed high-precision tempering equipment to stabilize metal structure and ensure product dimensional accuracy and service life.

Customer Pain Points

1.Unstable tempering temperature causes high mold deformation and cracking rate and low finished product yield

2.Traditional furnaces have serious heat loss and high long-term power consumption cost

3.Complex manual operation cannot realize intelligent and standardized temperature control

Customized Solution

Rexin designed an upgraded energy-saving box-type tempering furnace with double-layer heat insulation structure and imported PLC intelligent temperature control system. The equipment features uniform internal temperature, small temperature difference and stable heat preservation performance. It supports multi-stage programmable temperature curve setting, which can meet the diversified tempering process requirements of different tool steels and precision molds, realizing standardized and intelligent heat treatment production.

Project Achievements

The equipment effectively eliminates residual internal stress of quenched workpieces, reduces the workpiece defective rate to less than 1%, and greatly improves mold precision and service life. The high-efficiency energy-saving structure reduces the customer’s long-term power consumption cost by 30%. With simple operation and low maintenance cost, it has been widely recognized by local precision processing enterprises.

Case 5: Malaysia | Hardware Fastener Quenching & Tempering Integrated Furnace Project

Cooperating Industry: Hardware fasteners, automotive standard parts manufacturing

Customized Equipment: Continuous Mesh Belt Quenching & Tempering Integrated Furnace

Working Temperature Range: 20℃ ~ 1200℃

Technical Parameters

Project Background

This Malaysian enterprise is a leading local manufacturer of hardware fasteners and automotive standard parts, supplying standardized parts for Southeast Asian automobile assembly and hardware markets. The original intermittent box furnace had low production efficiency and unstable quenching hardness, relying heavily on manual operation, which could not meet the customer’s large-batch and high-consistency production demands.

Customer Pain Points

1.Intermittent production mode leads to insufficient output, unable to support large batch orders

2.Unstable quenching temperature causes large product hardness fluctuation and inconsistent quality

3.High manual operation participation leads to high labor cost and low production standardization

Customized Solution

Combined with the customer’s fastener specifications and hourly output demands, Rexin customized an integrated continuous quenching and tempering production line. The equipment integrates automatic feeding, high-temperature quenching, oil cooling and low-temperature tempering processes, equipped with intelligent constant temperature system and stepless speed regulation function. The whole production line operates automatically with minimal manual intervention, realizing one-stop standardized heat treatment of standard parts.

Project Achievements

The continuous production mode completely breaks the customer’s production capacity bottleneck. The product hardness is stably controlled within ±2HRC, and the defective rate is reduced to below 0.3%. The overall production efficiency is increased by more than 60%, effectively helping the customer stabilize long-term supporting orders in the Southeast Asian hardware and auto parts market.

Case 6: Germany | High-Precision Aerospace Heat Treatment Furnace Project

Cooperating Industry: Aerospace precision parts, high-end tool steel, precision machinery processing

Customized Equipment: EU Standard High-Precision Box-Type Quenching & Tempering Furnace

Working Temperature Range: 20℃ ~ 1150℃

Technical Parameters

Project Background

The German customer is a high-end precision manufacturing enterprise focusing on aerospace parts and high-grade tool steel processing, implementing strict European industrial heat treatment standards. The customer had extremely high requirements for equipment temperature control accuracy, processing repeatability, energy conservation and environmental protection, and needed equipment to support long-term high-frequency and high-precision batch production.

Customer Pain Points

1.Ordinary industrial furnaces have large temperature errors, failing to meet European precision processing standards

2.Traditional equipment has high energy consumption and cannot meet local environmental protection emission requirements

3.Single temperature control mode cannot adapt to multi-process composite heat treatment requirements

Customized Solution

Rexin customized a CE-certified high-precision box-type heat treatment furnace fully compliant with EU industrial standards. The equipment adopts imported high-precision temperature controller, supports multi-stage programmable temperature curve setting, and realizes ultra-precise and stable temperature control. The optimized closed-loop heat circulation and double-layer heat insulation structure greatly reduce heat loss and energy consumption. All electrical components and safety protection structures strictly comply with European industrial specifications.

Project Achievements

The equipment fully meets Germany’s aerospace and precision machinery manufacturing standards, with excellent processing repeatability and stable temperature accuracy. Its energy-saving and environmental protection performance meets local industrial emission standards. It has been running stably in the customer’s high-precision workshop for a long time, providing reliable heat treatment guarantee for high-end precision parts production.

Case 7: USA | New Energy Powder Metallurgy Large-Scale Sintering Furnace Project

Cooperating Industry: New energy powder metallurgy parts, industrial ceramic materials manufacturing

Customized Equipment: Large-Scale Continuous Atmosphere Protection Sintering Furnace

Working Temperature Range: 20℃ ~ 1180℃

Technical Parameters

Project Background

This American high-tech enterprise focuses on the R&D and mass production of new energy powder metallurgy components and industrial ceramic materials. The production process requires ultra-stable high-temperature sintering environment and precise atmosphere protection. The original small-load equipment had insufficient production capacity and unstable atmosphere control, and lacked complete data traceability function, failing to meet American industrial quality management standards.

Customer Pain Points

1.Unstable atmosphere concentration leads to inconsistent sintering density of new energy parts

2.Small single-batch load restricts large-scale mass production layout

3.No complete data recording function, unable to meet industrial quality traceability requirements

Customized Solution

Rexin designed and manufactured a large-load continuous atmosphere sintering furnace in accordance with US industrial manufacturing standards. Equipped with an intelligent automatic atmosphere proportional supply system, it realizes real-time adjustment and stable control of furnace gas concentration. The equipment supports 24-hour unattended operation and full-process production data recording and export, realizing full-link quality traceability. The optimized large-load furnace body structure fully meets the customer’s mass production demands for new energy components.

Project Achievements

The equipment operates stably for a long time with consistent product sintering quality, fully complying with US industrial quality inspection and traceability standards. The production capacity is increased by more than twice, effectively supporting the customer’s large-scale mass production of new energy parts. Our professional customized solutions and stable equipment performance have won long-term strategic cooperative recognition from the US client.

Case 8: Turkey | High-Precision Vacuum Quenching Furnace Project

Cooperating Industry: High-speed steel tools, automotive transmission precision parts, mold steel processing

Customized Equipment: Industrial High-Precision Vacuum Oil Quenching Furnace

Working Temperature Range: 20℃ ~ 1200℃

Technical Parameters

Project Background

The Turkish customer is a professional manufacturer of high-end cutting tools and automotive transmission precision parts, dedicated to high-precision metal heat treatment processing. Traditional open-type quenching equipment is prone to workpiece oxidation, decarburization and deformation, which cannot meet the high-precision and high-surface-quality processing standards of high-end tool steel and automotive precision parts.

Customer Pain Points

1.Open heat treatment causes surface oxidation and decarburization, affecting product surface quality and service life

2.Large workpiece deformation after heat treatment, unable to meet high-precision tolerance standards

3.Low processing grade, unable to produce high-end precision tool steel products

Customized Solution

Rexin provided a fully automatic high-precision vacuum quenching furnace with zero oxidation treatment function. The whole heat treatment process is completed in a high-vacuum closed environment, completely avoiding workpiece oxidation and decarburization. Equipped with precise constant temperature control and uniform rapid cooling system, it minimizes workpiece deformation. The optional oil quenching and gas quenching modes meet the diversified precision heat treatment demands of different high-grade steel materials.

Project Achievements

The vacuum heat treatment process ensures flawless bright surface and ultra-small deformation of workpieces, with stable and reliable mechanical properties. The customer successfully launched high-end precision tool products, occupied the local high-end metal processing market, and established long-term stable strategic cooperative relationship with Rexin.

Case 9: Mexico | New Energy Aluminum Alloy Heat Treatment Furnace Project

Cooperating Industry: New energy vehicle aluminum alloy structural parts, automotive lightweight parts processing

Customized Equipment: Aluminum Alloy Solution & Aging Integrated Heat Treatment Furnace

Working Temperature Range: 20℃ ~ 650℃

Technical Parameters

Project Background

This Mexican enterprise is a core supporting supplier for North American new energy vehicle manufacturers, specializing in the processing and production of automotive aluminum alloy lightweight structural parts. Aluminum alloy workpieces require precise solution and aging heat treatment to improve hardness, toughness and structural stability. The traditional furnace had uneven hot air circulation and low temperature control accuracy, leading to unqualified mechanical properties of aluminum parts and affecting product delivery.

Customer Pain Points

1.Uneven hot air circulation leads to inconsistent hardness and mechanical properties of aluminum alloy parts

2.Low temperature control accuracy fails to meet North American new energy auto parts precision process standards

3.Single process equipment cannot realize integrated solution and aging treatment, low production efficiency

Customized Solution

Rexin customized a special integrated heat treatment furnace for automotive aluminum alloy parts, adopting multi-dimensional air duct circulating hot air design to realize full-furnace uniform temperature heating. The equipment integrates solution treatment and aging treatment dual functions, supporting free switching of process parameters according to different aluminum alloy models. It is tailored to the fast iteration and high-precision production demands of North American new energy auto parts.

Project Achievements

The equipment completely solves the problem of uneven hardness of aluminum alloy workpieces, with the product qualification rate reaching 99.5%. The integrated dual-process design greatly improves production efficiency and reduces comprehensive production costs. It fully meets the heat treatment standards of North American new energy automobile supporting parts, helping customers stabilize long-term cross-border supply orders.

Custom Heat Treatment Furnace Solutions for Global Industrial Projects

With rich overseas project implementation experience in 9 core industrial countries, Rexin has mature customized solutions for various heat‑treatment demands including sintering, annealing, tempering, vacuum quenching, brazing and aluminum alloy heat treatment. We fully adapt to local industrial standards, workshop conditions and production‑capacity requirements of different countries, providing one‑stop services from scheme design, equipment manufacturing to overseas after‑sales support.