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What are the design features of the tablet press?First, the planning function elements of the tablet press1. The roughness of the inner and outer surfaces of the screw and drum does not exceed 3.2 microns.

What are the design features of the tablet press?

First, the planning function elements of the tablet press

1. The roughness of the inner and outer surfaces of the screw and drum does not exceed 3.2 microns.

2. Radial clearance error is ±2mm.

3. The flatness of the plane in the frame of the left and right rack does not exceed 0.04 mm.

4. The gap between the upper and lower press roller and the rubber baffle is 0.5mm to 1.5mm.

5. The screw speed of the extrusion tablet press should be adjustable, the speed regulation scale should comply with the relevant regulations, and there should be speed display equipment.

6. The electrical control system of the extrusion tablet press should be able to control the screw extrusion speed and the roll tablet pressing speed respectively, and complete the continuous extrusion and tablet pressing.

7. The extrusion tablet press should have a water cooling system, and the temperature of the extrusion film should be more than 10 °C lower than the discharge temperature of the internal mixer.

8. When the small tablet press is empty, the temperature of each bearing should not rise sharply, and the temperature rise should not exceed 20 °C.

9. When the extruder is working under load, the temperature of each bearing should not rise sharply, the temperature rise should not exceed 40 °C, and the high temperature should not exceed 80 °C.

10. When the extruder is empty, the power of the main motor does not exceed 15% of the rated power.

Tablet press

11. When the tablet press is working under load, the power of the main motor should not exceed the rated power (instantaneous overload is allowed).

12. The tablet press roller of the tablet press should have active spacing adjustment equipment. The height of the upper roller can be raised by no less than 200 mm.

13. The tablet press should be equipped with active smoothing equipment with smooth screws and tablet roller bearings.

14. The screw, barrel and cooling water piping system should be tested for tightness at 1.25 times the working pressure, and there should be no leakage within 10 minutes.

Second, the safety requirements of tablet presses

1. When the continuous idle working time of the extruder is not less than 2h, and there must be no abnormal oscillation and periodic noise, the noise level should not be more than 85 dB (A).

2. The electrical control system should comply with the relevant rules.

3. The extruded tablet press should be equipped with a parking device between the upper tablet roller and the upper crossbeam, and the power supply should be cut off when starting.

4. All exposed transmission parts should be equipped with safety protection devices.