Constant speed powerful electric mixer model:JKH71-JJ-1B

Technical Specifications
Specification and model: JJ-1B ordinary JJ-1BS (with speed digital display)
Whole machine output power: 120W
Rated power supply: 220~250V
Salary status: Long term continuous work
Speed range: Level I 60~500 rpm
Level II 240~2000rpm
Mixing shaft maximum torque: 1850gcm
Maximum mixing capacity (water): 20 liters
Environmental temperature: 5-40 ℃
Clamping range of brick clamp: 0.5~10mm
Mixing shaft penetration range: 0.5~8mm
Applicable medium viscosity: 0~10000mpas

Instructions for Use
Attention: The speed control rotation 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, check the rotation settings to ensure they are suitable for the liquid being stirred; If the correct speed cannot be determined, turn the knob to the lowest position (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 brick clamp and mixing shaft allow for the insertion of a mixing rod with a maximum diameter of 10mm.
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, with low load causing low pressure and high load causing high downforce.
When shifting gears in the experiment, attention should be paid to the position of the mixing head and the size of the container, especially the glass container. The mixer must be turned off before changing, otherwise the deceleration wheel may be damaged. The machine is equipped with two speeds, with speed I being low and speed II being high. 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.