Answer from MINIPRESS: You need to solder one edge, as we understand it, to keep the powder from spilling out, and you also need to seal the powder inside the tube. Right?

We suggest the following option for organizing this work.
Let’s use a tablet press to press your powder into tablets of 5mm diameter and some thickness. Having tablets of this powder, it will be convenient to place them inside the tube. Tabletizing the powder gives you the ability to choose the strength of the finished tablet, to get the exact weight of each tablet. Tablets can be made any height, for example, from 3 to 15 mm. If more powder is to be placed in the tube, several tablets can be packed into the tube one by one. The diameter of the finished tablet can be adjusted very precisely.

We solve several of your problems at once, namely: adjusting the weight of the powder in each tube, facilitating the dispensing process in tablets into the tube. There is no need to seal the powder inside the tube and no need to pre-seal the tube before filling it with powder, as the sealed end of the tube creates an air lock that would prevent the flow of both powder and tablets.

Thus, you prepare the tubes (cut, check the inner diameter). Press the powder into tablets. Feed the filter into the tubes, then feed the powder into the tablets up to the required amount, then seal one end of the tube, immediately turn over and seal the other end of the tube.

Answer from MINIPRESS: For powder pressing you need the simplest automatic hand press and an automatic tube sealing machine.
automatic tube sealing machine. We send you links to the description and video of these machines.

Production time for your size and sample tubes is 30 days. Delivery time is 30 days. It will be necessary to send 1000 pieces of tubes for adjustment of the equipment in China.

The issue of labeling is the easiest and is the last to be solved

Looking forward to your feedback for fruitful cooperation.

Whatever task you are facing, MINIPRESS is ready to take it up. We are more powerful than many competitors and our service is much more convenient. We provide customers with impressive conditions and amazingly fast fulfillment of orders. Our specialists use the most advanced technologies in the world to select various equipment. We have everything you need for modern production of any level. And even more.