The grinding mortar can be made of hard steel, stainless steel, tungsten carbide, agate, sintered corundum, zirconia, and hard ceramics. For soil heavy metal analysis, it needs to be equipped with 4 agate grinding mortars. The pressure of the sealed agate grinding mortars is set by a scale. While revolving around the axis of the turntable, it rotates in the opposite direction around its own axis. Collision, friction, to achieve the purpose of crushing, grinding, mixing and dispersing samples. Dry grinding, wet grinding and vacuum grinding are available. Two or four grinding mortars can be operated at the same time.

1. Voltage: 220V AC;

2. Transmission mode: gear transmission;

3. Working mode: four ball mill tanks work at the same time, agate tank 250ml, 500ml, 1000ml are optional;

4. Feed particle size: soil material ≤ 10mm, other materials ≤ 3mm;

5. Discharge particle size: the minimum can reach 0.1um, the maximum loading volume: the material and the grinding medium do not exceed two-thirds of the volume;

6. Adjustable speed (R/MIN): revolution: 30-450 Rotation: 60-900

7. Speed regulation mode: stepless speed regulation of brand inverter, speed accuracy of 0.2 rpm, automatic setting of forward and reverse rotation, and automatic shutdown.

8. Three-phase motor inverter controller power: 0.75KW (high-tech microcomputer chip control, with power display electronic monitoring device)

    Continuous operation timing (MIN): 1-9999 Forward and reverse commutation operation cycle (MIN): 1-9999

9. Maximum continuous working time (full load): 72 hours (timer 0-9999h);

10. Sealing method: The grinding mortar has a sealing ring design to achieve effective sealing and dustproof;

11. Cooling method: The grinder is equipped with an air cooling system to cool the agate tank and the machine;

12. Safety: a 7mm safety baffle is set around the grinding tank to ensure the safety of the experiment;

13. Stabilization system: grinding jar safety locking device, safety customization system, and center positioning device to ensure that the grinding jar will not be dislocated, loose, and will not slide during operation;

14. The sample compartment adopts the door-touch design with self-locking function, which makes the operation safer;

15. Optional ball milling working environment: vacuum ball milling, inert gas ball milling, low temperature ball milling, high temperature ball milling;

16. Electric shieves: up to seven layers of sieves with a diameter of 200mm. screening range: 20-200 mesh (minimum 20 microns), digital display, the number of sieving vibrations is 1400 revolutions per minute.