Okay, so we're back over at our press. And today, I'm going to be making sugar tablets using brown crystalline sugar to represent a crystalline active ingredient. You could also use a powdered active ingredient like caffeine powder, or vitamin C, or vitamin D. But a lot of our customers tend to ask me about crystalline substances, so I thought I'd make this video using that.
I've added a couple of spoons into the top of the shoot. And what we're going to do, is we're going to hand crank out between 10 or 20 tablets so that we can get an average weight of the tablet of pure active ingredient. Now, the reason why we're not going to use the motor to do this is because we don't know how the active ingredient will react in the die. Whereas we know that the Microcrystalline Cellulose will compact, we can't guarantee that with something like brown sugar. So to avoid damage to the machine, we're going to hand crank out each one of the 10. And we're also not going to worry about whether or not the tablet falls apart on ejection. Because it's got not binding agent in there, so the chances are it'll come out very loose, or it'll only just be held together. But hopefully with a slow hand-held crank, we should be able to get out 10 to 20 reasonable tablets.
The first thing I want to check, is whether or not I can move it forward using the de-jamming bar. So in this case, nope, there is no way that that brown sugar is going to let me complete an entire cycle so that it can be ejected up and out of the die. So what I'm going to have to do, is I'm going to have to start moving the press backwards through a reverse cycle.
Okay, so we've found out that our machine is jammed, and we've started to move the de-jamming bar backwards through the cycle. And as you can see, what happens as we move it backwards, is the boot comes back over the hole and the lower drift pin assembly starts to move itself backwards, up, and towards and into the boot, which is great because we're now getting that tablet out of there. There is one major problem, though. As it kicks it up, it pushes it into the bottom of the boot. Now, this is obviously a very bad thing because it's just going to cause continuous jamming later on down the line. So you need to be able to receive that tablet back out of the boot.
The way that you do this is by using the standard Allen key, which fits most of the Allen key parts on this press, to release this section just here. And by turning it to the left, you do so. You don't have to bring it all the way. Sometimes it's nice to leave just a little bit in there so that you don't have to fiddle about getting it in again. You then twist this bolt underneath the shoe to the left as well, until it pops out and you're left with a bit like that. And if you've been using your press regularly, it will be very, very dusty like this one.
That should then enable you - if we move the upper die out of the way - to move your filling part wherever you like. So in this case, we've still got that tablet stuck in there, and now it should be under here somewhere. But our brown sugar will go everywhere first. One second. There we go. And hopefully, it won't fall apart. As you can see, one very stuck brown sugar tablet. And it's a lot thicker than my other tablets. And it has bound surprisingly well, actually, so you can put a lot of power into these things.
But there you go. There's our one tablet. We're now going to make up another one, but we're going to make up this table without having the chute there, so that we can easily de-jam it once we've done it again. Because we're going to need more than one tablet to make up an average. So you can do this quite simply by hand, by moving it through the motions until the lower pin drift assembly drops down, filling it up by hand, scraping the excess out of the way, completing the cycle until the point where it won't go anymore. Use the de-jamming bar to tighten up the pressure a bit. And then, taking it back out again. And if you try not to catch your finger in it, trust me, it's not for the best.
So there we go. We've got two. We actually want approximately five of these tablets, so I'm now going to make five more. And I will see you back on the table with the scales.