China Supplier Industrial Vacuum Continuous Bright Annealing Furnace Metal Heat Treatment Equipment

This stainless steel dedicated continuous bright annealing furnace is a fully automatic sealed atmosphere heat treatment equipment, specially developed for mass production of stainless steel workpieces. The complete production line includes feeding system, gas replacement chamber, preheating zone, high-temperature solution annealing zone, gradient slow cooling zone, water-sealed cooling zone, discharging system, protective gas supply device and intelligent PLC control cabinet.

The equipment adopts oxygen-free reducing atmosphere to complete stress relief annealing and solution annealing for stainless steel products. It effectively eliminates rolling and stamping internal stress, stabilizes stainless steel crystal structure, improves ductility and corrosion resistance. The finished workpieces feature bright surface, uniform texture and no oxidation defects. It is widely used for continuous heat treatment of stainless steel tubes, strips, wires, fasteners and stamping parts in kitchenware, automotive, electronics and medical industries.

Applicable Stainless Steel Materials

201, 202, 301, 304, 316L, 310S, 410, 420, 430 stainless steel tube, strip, wire, coil, stamping parts, screws, nuts and fasteners.

Application Industries

Stainless steel kitchenware manufacturing, automotive precision parts, electronic hardware, medical equipment accessories, new energy stainless steel conductive parts, architectural decorative stainless steel materials, standard fastener factories.

1. Feeding Conveying System：Variable frequency speed regulation feeding structure, stable and uniform conveying, avoid stainless steel workpiece scratch, deformation and stacking.

2. Front Gas Exchange Chamber：Double-layer sealed oxygen removal structure, quickly replace air inside the furnace, completely cut off oxidation source for stainless steel.

3. Segmented Heating Furnace Body：Multi-group independent heating modules, 310S high temperature resistant stainless steel liner, anti-oxidation and high temperature resistance, suitable for long-term high-temperature annealing of stainless steel.

4. Precision Constant Temperature Zone：Realize uniform high-temperature soaking, ensure thorough solution treatment and stress elimination of stainless steel workpieces.

5. Gradient Slow Cooling Zone：Scientific temperature gradient cooling design, prevent stainless steel from rapid cooling deformation and cracking, stabilize metallographic performance.

6. Water-sealed Cooling Zone：Closed water circulation cooling, fast cooling while isolating air, ensure bright oxide-free discharging of stainless steel parts.

7. Intelligent Control System：PLC+HMI touch screen integrated control, store exclusive stainless steel annealing process curve, one-key start, automatic operation.

8. Protective Gas System：Support ammonia decomposition hydrogen-nitrogen mixed gas or high-purity nitrogen atmosphere, meet different stainless steel annealing process requirements.

1. Professional stainless steel dedicated annealing process, targeted for austenitic stainless steel 201, 304, 316L, 430 stress relief and solution annealing, stable metallographic structure and improved corrosion resistance.

2. Fully sealed hydrogen-nitrogen mixed protective atmosphere system, completely isolate oxygen, no oxidation, no blackening, no decarburization on stainless steel surface, realize mirror bright finish without pickling and polishing.

3. Zoned independent PID intelligent temperature control system, ±1℃ high precision temperature control, match stainless steel high-temperature solution annealing curve effectively.

4. High temperature 310S stainless steel muffle furnace body + multi-layer ceramic fiber energy-saving insulation, low heat loss, 30% energy saving than traditional stainless steel annealing equipment.

5. Continuous uninterrupted production design, mesh/steel belt stable conveying, no scratch and no deformation for thin stainless steel strip, tube and wire.

6. Explosion-proof gas pipeline and automatic gas flow monitoring system, real-time oxygen content detection, fully comply with EU CE safety standards.

7. Full-customized service: furnace size, heating power, running speed and hourly output can be customized according to different stainless steel workpieces.

Workpiece Loading → Gas Oxygen Removal → Preheating → High Temperature Solution Annealing → Gradient Slow Cooling → Water Sealed Rapid Cooling → Bright Stainless Steel Finished Discharge

The whole process is completed in a fully sealed oxygen-free environment, no air contact, no oxidation and discoloration. Effectively improve the surface finish and mechanical properties of stainless steel, save post-processing costs.

1. Customize furnace length, width and height according to stainless steel workpiece size and output demand.

2. Match exclusive annealing process parameters for different stainless steel grades (201/304/316L/430).

3. Support electric heating and natural gas heating dual energy solutions.

4. Customize automatic loading/unloading, online cleaning and waste gas treatment system.

5. Adapt to global industrial voltage and local safety standards.

1. Professional stainless steel heat treatment furnace manufacturer with 18+ years R&D and production experience, focus on stainless steel annealing technology.

2. Independent workshop and complete processing equipment, all core accessories self-produced, stable product quality and competitive price.

3. Rich overseas project cases, exported to 50+ countries, mature stainless steel annealing production solutions.

4. Free process design, parameter debugging, workshop layout drawing and technical consultation.

5. Strict factory testing before delivery, support third-party inspection and video verification.

6. Global on-site installation, commissioning and training, 24-hour online after-sales technical support.

Packing: Moisture-proof film for control cabinet, anti-rust paint for furnace frame, wooden case for precision parts.

Lead Time: 60 working days for standard model, 60-90 working days for customized line.

Port: Shenzhen / Guangzhou Port

Payment: T/T, L/C, negotiable international trade terms

Q1: Can stainless steel surface keep bright without pickling?

EN: Yes. Fully sealed furnace body with continuous protective atmosphere isolates oxygen completely. Stainless steel workpieces come out with mirror bright surface without oxidation and blackening, no pickling or polishing required.

Q2: Is the equipment suitable for different grades of stainless steel?

EN: Absolutely. We can adjust temperature curve, atmosphere ratio and running speed according to 201, 304, 316L, 430 and other stainless steel materials to achieve the best annealing effect.

Q3: Will stainless steel deform after annealing?

EN: No obvious deformation. The gradient slow cooling zone stabilizes the internal metallographic structure of stainless steel, effectively avoid deformation and cracking caused by rapid temperature change.

Q4: What after-sales support for overseas customers?

EN: We provide overseas on-site installation, commissioning and training. Remote debugging, global spare parts supply and 24-hour technical support are available. 1-year full machine warranty and extended warranty for core components.