Hot Air Box Oven for Drying and Rubber Discharging

• After-sales Service: 12 Months
• Warranty: 12 Months
• Type: Low-Temperature Dryer
• Certification: ISO
• Structure: Vertical Type
• Brand: Hengli
• Model NO.: HXF021-03
• Dimension of The Chamber: 600*600*600mm
• Max Temperature: 200c
• Temperature Uniformity: +-5c
• Heating Element: Heating Wire
• Chamber Material: SUS304
• Transport Package: Wooden Box Iron Bracket
• Specification: 1110mm*840mm*1950mm
• Trademark: HENGLI
• Origin: China
• HS Code: 8514390090
• Production Capacity: 2000 Sets/Year

Product Description

HXF021-03 Hot Air Box Oven
 

1. Main application

It is widely used in drying and rubber discharging process of electronic components, instruments, plastics and other products or materials under constant temperature environment.

1. Specification

2.1  Working temperature: RT~150ºC.
2.2  Max temperature:200ºC
2.3  Dimension of the chamber: 600×600×600mm(W×D×H)
2.4  Product frame:500×500×500mm(W×D×H);
2.5  Product bearing device: stainless steel frame and hook;
2.6  Chamber material: SUS304
2.7  Heating element: heating wire
2.8  Temperature control stability: ±1ºC
2.9  Temperature uniformity: ±5ºC(test in flat temperature 150ºC Constant temperature for 1 hour)
2.10  Thermocouple: K type
2.11  Exhaust port: 1 port, diameter is 50mm, manual control the vent size.
2.12  Temperature controller: FP93 temperature controller.
2.13  Temperature controlled Segment: 4×10 segments.
2.14  Temperature control point:1 point
2.15  Temperature test point1 point
2.16  Alarm protection: over temperature, thermocouple failure, low gas pressure, low water pressure other audible and visual alarm protections
2.17  Independent temperature sensor over temp protection
2.18  Over current protection of the motor
2.19  The heating of the furnace surface: ≤35ºC.
2.20  Heating rate: ≤ 5 ºC / min;
2.21  Heating power: about 12Kw.
2.22  Insulation power: ≤6kW.
2.23  Overall dimension: 1110mm×840mm×1950mm(W×D×H)
2.24  Furnace appearance: off white color

1. Furnace design

This furnace mainly includes furnace structure, hot air circulating system, temperature control system and test system.

Figure 1 equipment appearance diagram



Figure 2 Hot air circulation diagram


3.1 Furnace
The whole furnace structure is divided into three parts: furnace chamber component, furnace frame component and hot air component. The furnace is made of high-quality stainless steel plate by sealing and welding. Ceramic fiber blanket is filled on the outer stainless steel plate of the furnace and in the furnace door. Due to the excellent heat insulation performance and low heat capacity of ceramic fiber, it can not only ensure the rapid temperature rise of the equipment, but also greatly reduce the energy consumption and surface temperature of the equipment, with obvious energy-saving effect. In order to ensure the sealing of furnace door and furnace mouth, rubber sealing strip is designed around the furnace door to prevent the atmosphere leakage at the furnace door.
3.2 Hot air circulation system
It adopts the special long shaft motor for high temperature hot air oven, powerful multi wing stainless steel wind wheel, forced circulation air supply, uniform temperature. Hot air circulation is as shown in Figure 2. The motor is located at the bottom of the furnace to drive the centrifugal impeller. Through the volute structure designed at the bottom, the air flow generated by the impeller is directed into the right air duct. The outlet of the air duct is equipped with a squirrel cage heater. After being heated by the heater, the air enters the working room to heat the products in the furnace, so as to realize the reciprocating circulation.

3.3 Temperature control and test system design
3.3.1 Temperature measuring: use K type thermocouple independent measuring for control and test points.
3.3.2 Temperature control: use of Shimaden Intelligent temperature controller to control, with PID parameter auto tuning, high temperature upper limit alarm, thermocouple failure and other protective alarm functions
3.3.3 Heating control system: for the heating control, grouped supply the electricity to reduce the instantaneous current impact to the electric fence caused by the equipment.
3.3.4 Control mode:solid state relay zero cross trigger mode.
3.3.5 Over temperature alarm: when over temperature occurred in some zones, over temperature alarm system in corresponding zones immediately send audible and visual alarm signal and meanwhile the heating of this zone is cut off, the buzzer sounds alarm