HRF1350‑06 Hot Air Circulation Trolley Furnace | Industrial Bogie Hearth Furnace

Product Specification

In the production processes of industrial heat treatment, powder drying, ceramic degumming, and metal workpiece annealing and curing, industrial furnace equipment with precise temperature control, fast heating speed and energy-saving durability is the core key to guaranteeing process quality and reducing production costs.

The HRF1350-06 hot-air trolley furnace is an intelligent trolley-type heat treatment equipment developed specifically for medium and high-temperature hot air circulation processes. Integrating precise temperature control technology, high-efficiency hot air circulation system and energy-saving thermal insulation structure, it is widely applicable to multiple scenarios including industrial production, scientific research experiments and new material processing. With stable performance and outstanding energy-saving advantages, it has become a mainstream preferred equipment in the industry.

HRF1350‑06 Hot Air Circulation Trolley Furnace is mainly composed of furnace chamber assembly, furnace frame assembly, door cart assembly, hot air circulation system, and control system.

The furnace chamber of HRF1350‑06 Hot‑Air Trolley Furnace is hermetically welded from high‑quality stainless‑steel plates. Ceramic‑fiber insulation is filled between the outer stainless‑steel shell of the chamber and the interior of the furnace door. Owing to the excellent thermal‑insulation property and extremely low heat capacity of ceramic fiber, the equipment can realize rapid temperature rise, while greatly reducing its energy consumption and surface temperature, achieving remarkable energy‑saving effects.The HRF1350-06 hot-air trolley furnace features optimized structural technology with comprehensive upgrades from furnace chamber materials to thermal insulation configuration, thoroughly solving the common problems of traditional trolley furnaces such as slow temperature rise, high energy consumption, uneven furnace temperature, hot surface temperature and short service life.

Product Parameters

I. Basic Equipment Information

• Equipment Name: Hot Air Car Furnace

• Model: HRF1350-06

II. Technical Specifications and Basic Configuration

1. Temperature Performance

   • Rated temperature: 600°C, with a maximum working temperature of 650°C, meeting the requirements of most medium-to-high-temperature heat treatment processes.

   • During a 1-hour isothermal test at 600°C (empty furnace), the temperature uniformity within the furnace was ±5°C, indicating excellent temperature distribution consistency, which helps improve product quality.

   • The maximum heating rate is 5°C/min. Users can customize heating curves based on process requirements, but exceeding this limit is not recommended to avoid affecting heating element lifespan or product performance.

   • The furnace chamber uses air as the working atmosphere, eliminating the need for additional protective gases, making it suitable for conventional heat treatment processes.

2. Control and Monitoring

   • Equipped with 2 temperature control points for precise regulation of the working zone temperature, ensuring stability within the set range.

   • Features 2 temperature measurement points for real-time monitoring of the heating chamber temperature, facilitating process control and data recording.

   • Uses K-type thermocouples as temperature sensors, known for their wide measurement range, stability, and fast response, making them ideal for high-temperature applications.

3. Furnace Chamber and Heating System

   • Effective chamber dimensions: 750mm (W) × 2000mm (D) × 900mm (H), capable of accommodating large batches of materials.

   • The chamber is constructed from SUS310S stainless steel, offering excellent high-temperature resistance, oxidation resistance, and corrosion resistance, suitable for prolonged high-temperature operation.

   • Heating elements consist of stainless steel heating tubes, featuring high thermal efficiency, low thermal inertia, and long service life, making them a common choice for high-temperature heating.

   • Maximum heating power: 90 kW, enabling rapid heating for efficient production. In standby mode, power consumption can be maintained below 45 kW, demonstrating energy-saving performance.

   • Surface temperature rise ≤35°C, indicating superior insulation that ensures operator safety and minimizes heat loss to the environment.

4. Loading and Material Handling

   • Uses SUS310S stainless steel racks arranged in a 3-layer × 3-column layout. Each layer can hold trays containing crucibles, with detachable tray designs for easy loading and cleaning.

   • Maximum load per rack layer: 40 kg. Overloading is prohibited to ensure temperature uniformity and structural safety.

   • Users must provide their own crucibles (specification: φ400 × 200 mm, cylindrical), suitable for heat treatment processes in ceramics, powder metallurgy, or related industries.

5. Program Control and Safety Protection

   • Supports 20-step program control, allowing users to preset multi-stage temperature, time, and process parameters for complex heating, holding, and cooling processes.

   • Includes multiple alarm protections: overtemperature, thermocouple failure, low air pressure, low water pressure, etc. All anomalies trigger audible and visual alarms to prompt timely intervention, ensuring equipment and operator safety.

   • Fan overcurrent protection prevents motor damage due to excessive load.

   • Complies with surface temperature rise ≤35°C requirements, maintaining safe exterior temperatures and reducing heat dissipation hazards.

6. Air Circulation System

   • Equipped with a dual-circulation fan system, with a total air circulation range of (5000-6800 m³/h) × 2. This dual-fan configuration significantly improves temperature uniformity and heat exchange efficiency, ensuring consistent material heating.

III. Normal Operating Conditions

To ensure safe, stable, and long-term efficient operation of the HRF1350-06 Hot Air Car Furnace, the following environmental, power, and auxiliary system requirements must be met:

1. Environmental Conditions

   • Ambient temperature: 0-40°C, relative humidity ≤80% RH. Avoid corrosive gases or strong airflows to prevent impacts on furnace temperature fields and component lifespan.

2. Air Supply (Intake)

   • Requires dry, clean, oil-free compressed air at 0.2-0.4 MPa, with consumption of 15-30 m³/h (varies by operating state).

   • Air quality directly affects furnace atmosphere and component longevity. Recommend installing filters and dryers for air treatment.

3. Cooling Water Requirements

   • For water-cooled components (e.g., electrical cabinet or specific heating elements), use clean, non-corrosive water at ≤23°C, 0.2-0.4 MPa pressure, and a flow rate of 6-18 L/min.

   • Adjust and maintain the water circulation system as needed.

4. Ventilation System

   • Exhaust must be non-contact connected to a user-provided extraction system (e.g., ducts or fume hoods) with capacity >40 m³/h to expel fumes, hot air, or volatiles, ensuring a safe workshop environment.

5. Electrical Requirements

   • Three-phase five-wire power supply: three live wires (yellow, green, red), one neutral (blue), one ground (yellow-green). Voltage: 380V (main)/220V (auxiliary), 50 Hz.

   • Total power capacity >130 kVA to ensure stable current during heating and prevent voltage fluctuations affecting temperature control or equipment lifespan.

   • Wiring must comply with standards, especially ensuring reliable grounding for operator and equipment safety.

6. Installation Site Requirements

   • Equipment dimensions: 2100mm (W) × 3600mm (D) × 2100mm (H) (excluding extended rails). Required installation space: 3000mm (W) × 6500mm (D) × 3500mm (H).

   • Minimum floor area >25 m² to allow adequate space for operation, maintenance, and safety access.

   • Floor must be level, sturdy, vibration-free, and support >500 kg/m² to bear equipment and car load.

Hefei Chitherm Equipment Co., Ltd. is a professional enterprise engaged in the research and development, design, manufacturing, sales, maintenance and service of high, medium and low temperature industrial furnaces and experimental furnaces.

Our products include Bell Furnaces, Box Furnaces, Hot Air Dryer, Tube Furnaces, Vacuum Furnaces, Trolley Furnaces, and Rotary Furnaces. All of which are widely used in scientific research and experimentation in advanced ceramics, additive manufacturing, powder metallurgy, new energy and other fields. Suitable for the extrusion, sintering process of magnetic materials, honeycomb ceramics, alumina ceramics, zirconia ceramics, CIM/MIM, and positive and negative electrode materials of lithium batteries, as well as various other new materials such as pre-firing, extrusion, degreasing, firing, drying, co-firing, post-firing, soldering, curing, ceramic metallization, etc.

We insist responsible attitude towards customers and provide high-quality products and services. It is precisely because of the support, understanding, and trust of our customers and friends that our intelligent equipment manufacturing capabilities continue to improve. We are willing to work with customers to support the rapid development of electronis and advance materials all over the world.