• Model NO.：DM-2
• Loading Method：Static Load
• Display：Digital
• Control：Computer Control
• Weight：0-100Kg
• Power Source：AC220V
• Oil Cylinder Position：Top
• Size：1320*980*1050mm.
• Transport Package：Wooden Capse
• Specification：MH-2
• Trademark：raytone
• Origin：Linyi, Shandong
• HS Code：90158790
• Production Capacity：20 Sets Per Month

Machine size1320mm×980mm×1050mm.delivery timeone weekMachine weight:100KGpayment methodTT
The Los Angeles abrasion test uses coarse aggregates of specified roughness and quantity. In the abrasion machine, steel balls of specified quantity and quality are added at the same time. After a certain number of rotations, the friction, impact and shear of the sample on itself and the steel ball When abrasion occurs under the combined action, the mass loss is the abrasion rate.
For cement concrete aggregates, materials should be prepared and sieved according to the granular composition specified in Table 4-1, and the quantity and quality of steel balls should be determined according to this regulation. When the actual material is inconsistent with this table, select the closest particle size category from Table 4-2, determine the corresponding test conditions, prepare the material and select the steel ball according to the regulations.
Commissioning and installation
1. Before starting, check if there is any scratch between the rotating part and the barrel, and adjust it in time.
2. The gearbox should be filled with engine oil before it can be used, and the unloading worm gear and sliding bearing will be filled with engine oil.
3. Clean the dye in the barrel.
4. Before starting, lock the barrel limiter, and then start again.
5. After opening, if the running direction is found not to meet the requirements, the power should be cut off, any two phase wires of the wire should be interchanged, and then restart.
6. Adjust the timing of the time relay according to the wear time, pay attention to the adjustment in the case of power failure.
7. Press the start button.
8. Automatically stop after reaching the set time.
9. When unloading, stop the machine first, then loosen the barrel position limit handle, then rotate the hand wheel, and the worm wheel is attached to the barrel to rotate to a position that is convenient for discharging, stop rotating, and then start the machine to run the main shaft to discharge the material , Until the material is discharged and stopped, the main shaft rotates and rotates the hand wheel to reset the barrel.
10. To clean the barrel, pour water into the barrel and make the main shaft run to rinse the barrel and shovel or clean with sand.
Check before use
1. The instrument should be installed on a level platform with sufficient supporting capacity (the platform structure is cement concrete structure), and the distance between the back surface of the instrument and the wall should not be less than 5~10cm.
2. Before the test, it is necessary to check whether the circuit is intact, and whether the drum is rotated by hand (according to the direction of the drum arrow), and the counter is adjusted to zero.
Instructions
1. Before the test run, you must check whether the circuit is intact, (input power must be three fires) press the jog button, and the drum rotates normally (press the arrow on the drum, if the direction of rotation is opposite, change the input 380V two-phase live wire) At the same time, clear the LED display screen and adjust the preset dial switch to the number of tests, press the start button to start working, if there are special circumstances, press the "pause" button, the machine stops working, press "start" again after troubleshooting The key machine resumes work.
2. Put the tested gravel and steel balls into the cylinder, seal the cover, tighten the screws, and turn on the instrument to automatically stop after 500 or 1000 revolutions. At this time, the discharge port is in the upper middle position, which is convenient to open the sealing cover. After opening the cover, press the jog button to turn the discharge port downward, release the button to stop the test cylinder, and take out the test piece.
3. Use a round hole sieve with a diameter of 2mm or a square hole sieve with a side length of 1.7mm to remove the stone chips in the sample, wash the gravel left on the sieve with water, dry it, and weigh it at a constant weight.

Automatic digital display shelf type abrasion testing machine Model: MH-II This machine is mainly used to measure the abrasion of stone materials

Steps
1. According to the characteristics and purposes of the aggregate, select appropriate test conditions according to Table 4-1 or Table 4-2.
2. Put the test aggregates and steel balls into the cylinder, seal the cap, tighten the screws, set the number of rotations of the instrument, start the instrument, and make the cylinder rotate at a speed of 30~33r/min.
3. After the cylinder rotates to the specified number of times, the instrument automatically stops and the sample is taken out.
4. Use a round hole sieve with a diameter of 2mm or a square hole sieve with a side length of 1.7mm to sieve out the stone chips in the sample, wash the gravel left on the sieve with water and dry it to a constant weight, and accurately weigh the quality.
5. Calculate the loss of aggregate Los Angeles abrasion according to the calculation formula, accurate to 0.1%.
Precautions for use
1. When the abrasion machine is working, a dedicated person must monitor it. This is an effective way to improve safety. Once a problem occurs, the power should be cut off for inspection in time to avoid accidents.
2. After each use, you should cut off your own dedicated power supply and keep the instrument clean to prevent corrosion.
3. During the test, it is necessary to ensure that the cylinder cover is sealed tightly, otherwise, once loosened, the screw threads will be ground, which will affect the normal use of the instrument.
4. An iron-clad guillotine should be installed in the power supply line, dedicated to the wear machine, and a wire that is one-times thicker than the power line should be used as the ground wire

WELCOME TO CONTACT US FOR MORE INFORMATION!