Convective reflow conveyor furnace B221-AC421

Price from 2 344 000 ₽

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The reflow oven is mainly intended for small and medium-sized electronics manufacturing. The system can be integrated into a surface mount production line or work as a standalone device.

The convection reflow soldering furnace has the main advantages compared to its analogues:
- maintaining the stability of the soldering process
- the reliability and durability of all electronic and mechanical units, as well as the minimum consumption of time and money for preventive maintenance.

The numbers "421" in the name of the model of convection reflow oven mean the following:
- 4 preheating zones
- 2 peak heating zones
- 1 cooling zone

The B221-AC421 soldering furnace has one of the main advantages - the patented nozzle design, through which hot air or nitrogen is supplied to the working chamber of the device. High-quality soldering with solder paste is ensured by this design of nozzles, regardless of their shape and size due to uniform and "soft" blowing of the printed circuit board on both sides. Preheating zones and peak zones are equipped with modules with powerful fans and heaters, which are located symmetrically to each other above and below the furnace conveyor.

The temperature in each heating zone of the furnace is set and controlled individually. Control over the internal temperature is carried out using special sensors (thermocouples) located inside each heating zone. Due to the presence of thermocouples at the conveyor level, it is possible to obtain practically real values ​​of the soldering temperature of the printed circuit board.

If the specified temperature threshold is exceeded in any zone, the control system automatically adjusts the temperature profile parameters. This adjustment is carried out by means of a fan speed converter supplying air flows through heating elements (heating elements) and plates with nozzles directly to the conveyor area, as well as by individual automatic adjustment of the heating temperature of heating elements.

The furnace conveyor is driven by a DC motor. The required conveyor speed is set and controlled by a computer. Actual and set speed are displayed on the monitor screen. A safety clutch disconnects the engine and conveyor drive in the event of an interlock.

The central PCB support system prevents deformation of wide and thin boards moving along the conveyor belt of the furnace. The central support position is set by computer and has 2 height positions.

An automatic conveyor chain lubrication system can significantly save lubricants and production time, and also extends the life of the conveyor system. The system can be activated automatically or in manual mode. Using software, the operator can set the duration and frequency of this operation.

The soldering furnace with its well-thought-out design allows maintenance of all units and assemblies in the shortest possible time. The purity of the process chamber is maintained through automatic optimization of soldering processes through electronic control systems, as well as a system for removing fumes and sediments.

The reflow oven has software that allows the operator to control the temperature of the heating and cooling modules, the speed of the conveyor and the width of the conveyor, the number of boards in the working chamber, the position of the central support system for the printed circuit boards, and also make service settings for the furnace blocks. The user interface of the control computer of the furnace is convenient and simple. Information on all soldering process parameters is displayed on the screen of the large touch monitor (22 inches). In addition, the software implements a visualization function for transporting printed circuit boards along the conveyor and a counter for the number of circuit boards that passed through the furnace. In real time, the operator can see how many printed circuit boards are in the furnace and in which areas

Price from 2 344 000 rubles.

Overall dimensions
Length 5000 mm
Width 1480 mm
Height 1740 mm
Weight 2550 kg
Floor load 400 kg/m2

 

Parameters of the working chamber of the furnace

Length 3950 mm
The number of zones pre-heating 5
The length of the zones pre-heating 1750 mm
Number of peak heating zones 3
The length of the zones of peak heat 1100 mm
Maximum temperature in the first zone 250°С
Maximum temperature in preheating zones (except the first one) 300°С
Maximum temperature in the peak heating zone 350°С
Type of heat exchange Convection
Gas circulation in the heating zones 350 m3/h
The time of heating (output on mode of soldering) 30 min
Accuracy of maintaining the temperature regime +/-2К

 

The parameters of the conveyor
Working width of the conveyor 70-430 mm
The type of conveyor chain with 3 mm needles(on request 5 mm)
Clearance above the printed circuit Board 30 mm
Clearance under the printed circuit Board 14 mm
Conveyor speed 180-1800 mm/min
Conveyor speed error ≤ 18 mm/min

 

The parameters of the cooling zone

Total length 1100 mm
Number of cooling zones

3

 

Connecting to the power grid

Power supply 3х400 V +/-5% 50Hz
Connection 5-wire (3-phase, neutral, ground)
Power consumption during start-up / heating up to 54 kW
Power consumption in operating mode 10 kW

 

Operating conditions
The temperature in the room 15-32°С
Air humidity 30-75%

Program 1

Program 2

Program 3

Program 4

Program 5

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Or contact the sales department by phone: +7 (8112) 29-06-50