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Professional pharmaceutical machines manufacturer & Exporter engaged in the pharmaceutical packaging industries - Urban Machinery


How to maintain the GZPK series tablet press machine?

Summarize 

GZPK series high speed tablet press is fully automatic type, the granule material will be pressed to tablet after one pair pre-press wheel and one pair main press wheel. 

Generally, the granule for tablet press should meet the following requirement:

If the weight of tablet less than 0.3g, the granule should be sieved by 16~20 meshes screen.

If the weight of tablet more than 0.3g, the granule should be sieved by 10~14 meshes screen.

Liquid water content of granule should be 1%~5%.

Half-solid powder, damp powder, fine granule are not good for tablet pressing.

Upon the -51/65/83series automatic tablet press machine, there is a full-sealed tablet press room. All the parts connect to the powder are made of austenite stainless steel, non-metal parts adopt innoxiously material. All the four transparent windows can be opened to clean the machine.

Below part of the machine is sealed by stainless steel door, and there are drive equipments in it. It guarantees the safety and decrease the noise. The tablet press process including five steps, filling, measuring, pre-pressing, main-pressing and tablet discharging. The tablet press machine is fully controlled by the touch screen on the electric cabinet.

The main supporting structure of GZPK720 equipment is four column structure. As the below picture, the height of the machine is only 1981, center of gravity is low, so the equipment is stable when operated. 

 

How to maintain the GZPK series tablet press machine? 1

                                                                                                                            Installation diagram

 

Remark:

1.The air flow of dust collector is 500m³/h, pressure is 3500pa, power is 1.5kw, the air source should be provided, and the equipment should be cleaned by pulse. It’s better to separate dust collector and main automatic tablet press machine, don’t place in the same room. The exhaust outlet of dust collector should be connected to the ventilation of the room, otherwise, the room may be polluted, and the temperature will be higher.

2.If customer equips our company’s vacuum loader, the connector is on the top plate. Air flow of vacuum loader is 22.56 m³/h, the diameter of connection pipe is 10mm, height of vacuum loader is 720mm. 

 

2.Maintenance and lubrication

2.1 Routine inspection and maintenance 

The upper and lower punch should move smoothly. Periodic clean the punch hole and keep a thin oil film. 

Lubrication of the central lubrication system should be propriety. The oil circuit should be expedite;

Coat an oil film to the guide rail of the upper guide rail plate after you clear it.

2.2 Maintenance of the main drive worm gear case 

The worm and gear runs through the axletree. Generally, it does not need to do the special maintenance, however, you have to ensure that the air around will be smooth and the cooling fan should be in gear when the best tablet press machine is working. 

The oil position in the worm gear case needs the periodic inspection. Change the lubrication after it run for 2000 hours. 

The lubrication is L-CKE/P worm and gear lubrication. (Summer: No. 680; winter: No. 460)

Adjust the clearance of the worm and gear again after the long running. The adjustment should under the warm circumstance after the running. Preoperation for 4 hours before and after the regulation, the ascending temperature should less than 35℃.

2.3 Tension of the strap

Check whether the strap can move 1~2cm at the midpoint of the rotary side. If it can, then the tension is suitable. 

Regulate the tension of the strap by moving the motor base. After you finish the regulation, tighten the relevant bolt.

2.4 Maintenance of the center lubricating system

Check all the oil circuit and flux in periodic time and regulate them in time. 

Timed pour the waste oil in the waste oil case.

When the indicator light of the lubrication shortage is lightened, you should stop the machine, clean or add the oil. The type of the oil: shell omala 150.

The automatic lubricating points are: 

1.Lifting worm wheel;

2.Lifting guide axle;

3.Lower wheel worm wheel; 

4.Exit guide rail;

5.Filling guide rail; 

6.Upper punch;

7.Lower punch

8.Top of the punch 

Choose of the lubrication: it is show that, the good lubrication can improve the performance of the tablet press machine and reduce the abrasion effectively and reduce the rate of rejects as well. According to the production rules of the medicine, we usually choose the foodstuff level lubrication to avoid the pollution. Through the test, we find when we choose the common No. 46 hydraulic oil, the lubricating performance of the oil will be declines after the machine run over 12 hours or stop using it for one day. It will lead the black block on the die and punch or it will make the upper and lower punch alarm.

After we choose the car lubrication, the lubricating effect will not be changed a lot if the automatic tablet press machine works for 24 hours or stop using it for 2 days. From the production effect, the black point and the alarm phenomenon are reduced a lot. If you choose a better one, just like the OMALA 150 and the foodstuff level GL150, you can satisfy the requirements as well. 

2.5 Grease lubrication  

The equipment is equipped with a set of grease lubrication system. The important axletree parts can add the oil through this system. The dosage can be regulated yourself. Generally, add the oil for one time in a month. The grease lubricant should choose the watery one or it will jam the tube. 

 

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