Twin-shaft mixers have become industry standards as a result of 20 years and thousands of units produced to meet the need for concrete production on a worldwide scale.
The Model HJS – 60 double shaft concrete test utilizing mixer is a specific piece of test machinery created to aid in the application of the concrete test using mixer JG244-2009 construction industry standards released by the People’s Republic of China’s ministry of housing and urban-rural development.
Uses and usage spectrum
The JG244-2009 criteria of the primary technical characteristics published by the ministry of house construction were used in the design and production of this equipment, a new kind experimental concrete mixer.It can mix the gravel, sand, cement, and water mixture specified in standards to create homogeneous concrete material for testing use, for determining cement standard consistency, setting time, and production cement stability test block; It is a necessary piece of equipment in laboratories for quality control departments in cement production enterprises, construction enterprises, colleges, and universities;Can also be used for mixing various granular materials less than 40 mm.
3、 Technical Parameters
1、 Mixing blade turning radius：204mm；
2、 Mixing blade rotate speed：outer 55±1r/min；
3、 Rated mixing capacity：（discharging）60L；
4、 Mixing motor voltage/power：380V/3000W；
5、 frequency：50HZ±0.5HZ；
6、 discharging motor voltage/power：380V/750W；
7、 Max particle size of mixing：40mm；
8、 Mixing capacity：Under the condition of normal use, within 60 seconds the fixed quantity of concrete mixture can be mixed into homogeneous concrete.
4、 structure and principle
The mixing chamber main body of a double cylinder and double shaft type concrete mixer.A falciform mixing blade with scrapers on both end blades is designed to produce good results in mixing.Each stirring shaft has six mixing blades inserted, a spiral distribution at a 120° angle, and a 50° installation angle for the stirring shaft. Blades are arranged in an overlapping pattern on the two stirring shafts, which reverses outward mixing and forces the material to circulate in a clockwise direction to accomplish the desired level of mixing.The mixing blade is installed using a method of thread locking and welding fixed installation, which ensures the tightness of the blade and also allows for replacement after wear and tear.A discharge with a 180° tilt is used for unloading.Operation uses a manual and automatic combined design.
Worm gear pair, mixing chamber, gear, sprocket, chain, and bracket are the major components of a mixer.The machine mixing pattern for motor drive axle shaft cone drive, cone by gear and chain wheel drives the stirring shaft rotation, mixing materials, is transmitted by a chain.Unloading transmission form for motor through belt drive reducer, reducer by chain drive stirring the rotation, flip, and reset, unload the material.
The machine has a three-axis transmission system, which boosts the machine’s operational stability by placing the primary transmission shaft in the midst of the mixing chamber’s two side plates;When discharging, turn 180 degrees, the driving shaft force is little, and the occupied space is minimal.All components have been precisely machined, are universal and interchangeable, are simple to disassemble, interchangeable and general, easy disassembly, repair and replacement blades for vulnerable parts.The driving is fast, reliable performance, durable.
5、Check before use
(1).Set the machine in a suitable place, secure the universal wheels, and set the anchor bolt on the equipment so that it fully contacts the ground.
(2). The no-load check machine has to be operating normally in line with the “, operation and use” protocols.The link does not break loose.
3. Verify the rotating direction of the mixing shaft.Change the phase wires if necessary to make sure the mixing shaft rotates outward.
6、Operation and use
（1）.Connect the power plug to the power socket.
（2）.Switch on ” air switch ” , the phase sequence testing works. If the phase sequence errors ,’ phase sequence error alarm’ will alarm and lamp flashing. At this time should cut input power and adjust the two fire wires of the input the power.(note: cann’t adjust the phase sequence in the equipment controller) if “phase sequence error alarm” don’t alarm that phase sequence is correct, can be normal use.
（3）. Check whether the ” emergency stop” button is open, please reset it if open (rotate according to the direction indicated by the arrow).
（4）.Put the Material to the mixing chamber, cover the upper cover.
（5）.Set mixing time (factory default is one minute).
（6）.Press the button “mixing”, mixing motor begins to work,reach to the setting time (factory default is one minute), machine stop working, finish mixing.If you want to stop in the process of mixing, can press the “stop” button.
（7）.Take off the cover after mixing has stopped, place the material box at below center position of the the mixing chamber, and push the tight, lock the universal wheels of the material box.
（8）.Press the “Unload ” button, “unload” indicator light on at the same time.Mixing chamber turn 180 ° automatically stop, “unload ” indicator light is off at the same time, the most material is discharged.
（9）.Press the “mixing” button,the mixing motor works, clear the residual material clean (need about 10 seconds).
（10）.Press the “stop ” button, mixing motor stops working.
（11）.Press the “reset ” button,discharging motor running reversely, the “reset” indicator light bright at the same time, the mixing chamber turn 180 ° and automatically stop, the ” reset ” indicator light off at the same time.
（12）.Clean the chamber and blades to prepare mixing next time.
Note: (1)In the machine running process in case of emergency, please press the emergency stop button to ensure the personal safety and avoid the damage of equipment.
(2) When input the cement, sand and gravel,it is forbidden to mingle with the nails,iron wire and other metal hard objects, so as not to damage the machine.
7、Transportation and installation
(1) Transport: This machine does not have a lifting mechanism. Forklifts should be used in transportation for loading and unloading.The machine has moving wheels below it, and after landing, you may push it with your hand.(2)Installation: The machine may be installed by simply setting it on a cement platform and fastening the two anchor bolts at the bottom of the machine to the ground.(3)Ground: Please install an electric leakage prevention mechanism and connect the ground wire to the grounding column behind the machine in order to completely assure the safety of electricity.
8、maintenance and preservation
(1) A site for the machine should be free of highly corrosive substances.(2) Use clear water to wash the internal components of the mixing tank after use.(If not in use for a long period, the mixing chamber and the blade surface can be coated with rust-proof oil.)(3) Before using, one should check to see if the fastener is loose; if so, one should promptly tighten it.(4) Prevent touching any portion of the body directly or indirectly with the mixing blades when turning on the power supply.(5) The chain, reducer, and each bearing on the mixing motor should promptly or routinely be lubricated with 30 # engine oil.
Post time: May-25-2023
