High‑Precision Energy‑Saving Continuous Bright Annealing Furnace for Austenitic & Ferritic SS | ±5°C

This continuous bright annealing furnace is purpose‑built for mass continuous heat treatment of austenitic and ferritic stainless steel. Operating under sealed protective atmosphere, the equipment realizes recrystallization annealing without surface oxidation. With controlled ±5 °C temperature uniformity across the effective heating zone and optimized thermal‑insulation structure, the furnace ensures consistent metallographic transformation while reducing long‑term energy consumption.

Eliminating oxide scale, discoloration and pickling procedures, it minimizes post‑processing workload for stainless‑steel components. Widely deployed in metal processing plants for stable 24/7 batch production, it meets strict requirements on mechanical properties, surface quality and production repeatability for strips, wires, thin‑walled tubes and special profiles. All core sections can be engineered to match customer‑specific workpiece dimensions, throughput and metallurgical specifications.

1.Reliable Temperature Consistency

±5 °C temperature uniformity across the heating zone. Ensures homogeneous grain structure and consistent mechanical property for each batch of stainless‑steel workpieces. Avoid partial over‑heating or insufficient annealing.

2.Non‑Oxidation Bright Effect

Sealed furnace chamber with controlled protective atmosphere. Workpieces keep metallic bright surface after annealing, no scale, no discoloration. Saves post‑treatment procedures such as acid pickling.

3.Energy‑Saving Structure

High‑density thermal insulation layers reduce heat loss. Optimized heating element layout lowers power consumption during long‑time continuous running, greatly cutting your daily production cost.

4. Wide Material Compatibility

Perfect fit for austenitic stainless steel (304, 316, 321) and ferritic stainless steel (430, 410, 446). Process stainless steel strips, fine wires, pipes and formed profiles.

5.Continuous Stable Operation

Designed for 24‑hour non‑stop mass production. Automatic speed control for conveyor system, easy parameter setting for different material grades and thickness.

6.Customizable Configuration

We customize furnace width, heating‑zone length, cooling section, atmosphere system and conveyor structure according to your workpiece size, throughput and production requirements.

Process‑Applicable Materials: Austenitic SS (304, 316L, 321); Ferritic SS (410, 430, 446)

Working Temperature Range: 300 °C ~ 1150 °C

Temperature Uniformity of Heating Zone: ±5 °C

Protective Working Atmosphere: Nitrogen‑hydrogen mixed gas (standard); 100% hydrogen (optional for ultra‑high surface requirement)

Conveyor Mode: Mesh‑belt type / Roller type (selectable)

Allowable Continuous Operation: 24‑hour non‑stop running

Cooling System: Atmosphere‑protected controlled cooling + rapid gas cooling

Customizable Scope: Effective furnace dimension, heating‑zone length, production throughput, gas station system, PLC control function

1. Continuous bright annealing for cold‑rolled stainless steel strips
2. Bright annealing of stainless steel wire & welding wire
3. Heat treatment for thin‑wall stainless steel tubes
4. Annealing for decorative stainless profiles and stamping components
5. Hardware and kitchen‑ware stainless‑steel part mass production

Stainless steel workpieces are continuously fed into sealed furnace by conveyor. Inside heating zone, workpieces reach target annealing temperature under protective atmosphere. Thanks to ±5 °C uniform temperature field, metallographic recrystallization completes evenly. Then workpieces go through controlled cooling section inside atmosphere chamber. Output parts maintain bright metallic surface without oxidation.

Q: Which stainless steel grades can this furnace handle?

A: Mainly for austenitic series like 304,316,321 and ferritic series such as 430,410. We adjust heating curve for your exact material.

Q: Is the furnace fully custom‑built?

A: Yes. Effective width, heating length, conveyor form and hourly output can be modified based on your workpiece dimension and target capacity.

Q: What protective gas do you recommend?

A: Nitrogen‑hydrogen mixed gas is standard. 100% hydrogen atmosphere solution is available for higher surface requirement.

Q: Can you provide full‑set installation guidance and after‑sales support?

A: We supply technical documentation, remote commissioning guidance and spare‑part support. Overseas site service is negotiable.

Send us your workpiece size, material grade and required hourly capacity. Our engineering team will work out tailored drawing and quotation for your continuous bright annealing project.