JJ-1BA digital constant speed powerful electric mixer

JJ-1BA speed measurement digital display, constant speed boosting electric mixer, with reasonable design and novel structure, using DC motor, stepless speed regulation, and referencing advanced boosting and speed stabilization circuit, with stable speed

Fixed torque, low noise, intuitive display of rotation speed, easy and safe operation. It is an essential basic equipment for major universities, research institutions, chemical engineering and other units.

instructions
Note that the speed control knob is preset at the highest speed (scale 10) when leaving the factory to protect the drive system from damage during transportation and handling. Therefore, before use, the setting of the knob should be checked to ensure that it is suitable for the liquid being stirred: if the speed cannot be determined, turn the knob to the lowest (scale 1). After the mixer has not been used for a period of time, friction noise will be heard when it is first turned on again. This is due to the pre stress on the friction wheel lining, which does not damage the function of the mixer. After a short period of operation, the noise will disappear. The maximum diameter of the mixing rod that can be inserted into the clamping clamp and mixing shaft is 100mm.

The machine achieves stepless speed regulation through a friction wheel drive system, but the motor always runs at a fixed working point, and the power output speed and torque of the motor reach the optimized values at that point and remain basically constant. Power is transmitted to the mixing shaft through a friction wheel and a central axis equipped with a pair of plastic couplings. The two gear systems are configured on the same two shafts to form two manually adjustable speeds. If the loss in power transmission is ignored, the power at the mixing shaft end is always equal to the motor output, and a pair of spiral couplings on the central axis keep the wear of the friction wheel at a low level. The coupling device automatically adjusts the required pressure on the friction wheel based on the load on the mixing shaft. Low load causes low pressure, while high load causes high pressure.

When shifting gears in the experiment, attention should be paid to the position and capacity of the mixing head, especially the glass container. The mixer must be turned off before shifting gears, otherwise the reduction gear may be damaged. The machine has two speeds, with the first gear being low speed and the second gear being high speed. The preset position is in gear II. When shifting from gear II to gear I, rotate the plastic bearing sleeve counterclockwise (looking down) to the stop position. Pull down 5.5mm and then turn clockwise until you hear the sound of the steel ball resetting inside the bearing sleeve. When shifting from gear I to gear II, rotate the bearing sleeve counterclockwise to the stop position, push up 5.5mm, and then rotate clockwise until you hear the sound of the steel ball resetting.

3、 Cleaning and maintenance

This machine may only fail after long-term natural wear and aging of its components.

When cleaning, only use water and surfactants. Oil or grease substances are prohibited from coming into contact with the surfaces of friction wheels and conical wheels. Because this will greatly reduce the friction coefficient between the two, thereby weakening the power transmission capability.

4、 Technical parameters

Motor output power: 200W Rated power supply: 220-250V

Working status: Long term continuous operation, maximum torque of mixing shaft: 1850gcm

Speed range: Level I 60-500rpm, Level II 240-2000rpm

Maximum mixing capacity (water): 20 liters Environmental temperature: 5-40 ℃

Clamping range of drill chuck: 0.5 ∽ 10mm Suitable for medium viscosity: 0 ∽ 10000mpas