12m Long Large Rotary Tube Furnace with 5-Zone Precise Temperature Control

1050 Large-scale Rotary Tube Furnace

The Model 1050SSR large-scale rotary tube furnace is an industrial thermal processing unit designed for the continuous heat treatment, calcination, roasting, activation, and drying of powders, granules, and bulk materials. Featuring an extra-long rotary tube, an independent multi-zone temperature control system, an automatic screw feeding mechanism, and a continuous discharge structure, the equipment ensures stable, continuous production. It meets the large-scale manufacturing requirements of sectors such as new energy materials, chemical materials, metallurgical powders, mineral processing, and environmental protection.

The equipment utilizes a 310S high-temperature resistant stainless steel furnace tube, a high-efficiency silicon carbide heating system, and intelligent PID temperature control technology.

Tube Furnace Product Features

1. Extra-long heating zone for large-scale continuous production

The heating zone spans 9,600 mm (with a total furnace tube heating length of 12,000 mm) and utilizes a 310S high-temperature stainless steel tube with an outer diameter of 500 mm and a wall thickness of 8 mm. This extra-long design is ideal for the continuous calcination of large volumes of material, significantly boosting the capacity of a single unit to meet industrial-scale production demands.

2. Five independent temperature zones with precise profile control

The system features five independent temperature control zones (Zones 1–5), each equipped with dedicated temperature control and monitoring points. Zones 1 et 2 are adjustable between 450°C and 600°C for material preheating, while Zones 3 through 5 are adjustable between 900°C and 1,050°C for high-temperature calcination. This five-zone design guides the material through sequential stages—preheating, heating up, high-temperature calcination, and cooling—ensuring precise control over the temperature profile. The furnace maintains a temperature uniformity of ±3°C and a control accuracy of ±1°C.

3. Large-diameter furnace tube with anti-stick internal structure

The furnace tube has an outer diameter of 500 mm, a wall thickness of 8 mm, and an inner diameter of 484 mm; un 3,000 mm cooling section made of 304 stainless steel is installed at the discharge end to allow the material to gradually cool down before exiting the furnace.

4. Automatic feeding via screw feeder for stable, continuous production

A screw feeder is used for material input, with all contact parts made of 304 stainless steel. It is equipped with a variable frequency drive (VFD) supporting up to 50 Hz and a 1,500 W gear motor. The adjustable feed rate enables continuous, uniform, and stable automatic feeding, making it suitable for large-scale industrial continuous production.

5. Adjustable tube rotation and tilt for controlled material flow

The furnace tube rotation drive system features a 3000 W motor equipped with a variable frequency drive (up to 50 Hz) for adjustable rotation speed; a manual lead-screw mechanism is used to adjust the furnace body tilt angle within a range of 0 to 3 degrees.

6. Sealed furnace tube ends enabling a slight positive-pressure atmosphere

Both ends of the furnace tube feature effective sealing arrangements—specifically, graphite packing at the feed end and graphite seals at both ends. The feed end is equipped with an exhaust butterfly valve (DN60), while the discharge end is fitted with a discharge butterfly valve (DN80) and an oxygen inlet. This semi-sealed structure at both ends allows for the maintenance of a slight positive-pressure atmosphere within the tube, meeting the atmospheric requirements of different materials.

Four tubulaire Applications

• Continuous Calcination of Powder Materials: Suitable for the large-scale continuous calcination of various powder materials (e.g., catalyst powders, battery material precursors, ceramic powders).
• Heat Treatment of Granular Materials: Suitable for continuous drying, activation, and calcination processes for granular materials (e.g., molecular sieves, catalyst pellets, adsorbents).
• Calcination and Decomposition of Inorganic Salts: Suitable for the continuous calcination and decomposition of various inorganic salts (e.g., carbonates, sulfates, nitrates).
• Metal Oxide Production: Suitable for the synthesis and calcination of metal oxides, such as the large-scale production of aluminum oxide, iron oxide, nickel oxide, cobalt oxide, and manganese oxide.
• Battery Material Processing: Suitable for the continuous calcination and heat treatment of precursors for battery cathode materials, such as lithium iron phosphate (LFP), ternary materials, and lithium cobalt oxide.
• Environmental Solid Waste Treatment: Suitable for the pyrolysis, incineration, and harmless treatment of materials such as industrial solid waste, sludge, and hazardous waste.

Profil de l'entreprise

Une entreprise professionnelle spécialisée dans les services de technologie de traitement thermique et le R&D, fabrication, et vente de fours électriques haute température.

La société se concentre sur le développement de fours électriques à haute température couvrant une plage de températures complète de -100 ℃ à 2 600 ℃.. Ses produits comprennent des fours électriques expérimentaux, fours à atmosphère sous vide, fours industriels, et équipements de chauffage par induction à moyenne fréquence. Les principaux produits comprennent des fours à caissons, fours tubulaires, fours de levage, fours pousseurs, fours à bogies, fours rotatifs, fours tunnel, et divers fours spécialisés moyenne fréquence.

L'entreprise adhère à l'innovation technologique et a passé les certifications ISO9001 et CE de l'UE.. Il possède 21 marques déposées, 29 brevets, et 27 droits d'auteur sur les logiciels.

Méthodes de paiement

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Méthodes d'expédition

Le four électrique est emballé en trois couches: d'abord enveloppé dans du papier mousse, puis enveloppé dans un film plastique, et enfin emballé dans une caisse en bois.

Tube Furnace FAQ

1. Why is 310S stainless steel used for the furnace tube?

310S offers excellent high-temperature and oxidation resistance, enabling stable long-term operation at temperatures around 1000°C.

2. Can the temperature zones be controlled independently?

Oui. The equipment features a five-zone independent temperature control design, allowing the temperature of each zone to be set individually.

3. Does the equipment support continuous production?

Oui. It is equipped with automatic screw feeding and continuous discharge systems, enabling 24-hour continuous operation.

4. What is the function of the furnace tilt angle?

Adjusting the tilt angle (0–3°) allows for control over the material’s residence time within the furnace, enhancing process flexibility.

5. Does it support data recording and export?

Oui. The equipment is equipped with a touchscreen and a USB port, allowing for the recording and export of operational data.