Buyers negotiate hard on the press and then accept whatever tooling the supplier throws in. That’s backwards. The press is a frame with a motor. The punches and dies are what actually make the tablet, and they’re what you’ll be buying again and again for the next decade.
Get this part wrong and the machine still runs. It just makes tablets you can’t sell.
B tooling and D tooling
Tooling is classified by the diameter of the punch barrel and the die. B tooling is the smaller of the two. D tooling is larger and handles bigger tablets and higher compression forces.
There are two subtypes worth knowing. BB tooling uses a B punch with a smaller die bore, for small tablets on a B press. DB tooling puts a D-sized head on a B barrel, so you can run D-type tablets on a B machine.
They are not interchangeable. A B press takes B tooling. Buying a beautiful set of D punches for a B turret gets you a box of expensive steel that doesn’t fit. This happens more often than you’d think, usually when a buyer orders spares from a different supplier a year later without quoting the original spec.
TSM against EU
Two international standards govern the fine dimensions. TSM comes from the American Tableting Specification Manual and dominates in the United States and Japan. EU, or Euronorm, is the European standard and is more widely used globally.
The visible difference is the punch head. TSM heads have an angled top profile. EU heads are domed. EU punches are also about 0.010 inches longer overall.
That fraction of an inch matters. Mix TSM and EU punches in the same turret and you get uneven compression, weight variation across stations and accelerated cam wear. The machine will run. Your uniformity data will be a mess and you won’t know why.
Most Chinese-built presses ship configured for EU. Confirm it in writing before the order, and write the standard onto every spares purchase order you ever raise. This is the single cheapest piece of paperwork discipline in a solid dose plant.
Steel and wear
Punches wear. That isn’t a defect, it’s the job. What varies is how fast.
Standard tool steel is fine for ordinary compressible blends. Abrasive formulations chew through it. Anything with a high mineral load, calcium carbonate, iron salts, some herbal extracts, will wear tips visibly faster than a lactose-based blend will.
Chrome plating and specialist coatings help with sticking, not with abrasion. If your product sticks to the punch face, coating is the answer. If your product is grinding the tip edges away, you need harder steel, not a coating.
Worn punches show up as tablets with rough edges, then as capping, then as weight drift. Operators usually notice the third one first. By then you’ve made a lot of tablets you shouldn’t have released.
How many sets to buy
One full set per tablet you make, plus spares. That’s the honest answer and it’s more expensive than most buyers plan for.
You cannot swap one product for another without changing tooling, and you can’t run a partial set. A 27-station turret needs 27 upper punches, 27 lower punches and 27 dies, all matched. Break three tips and you’re down until the replacements land, which from China is rarely under six weeks.
Order at least ten per cent spare tips with the machine, in the same steel, from the same maker, in the same batch. Tooling from two different batches doesn’t always measure the same.
Storage, which sounds trivial and isn’t
Punches rust. Nigerian humidity is unkind to bare tool steel, and a set left in a drawer through one rainy season can come out pitted.
Proper tooling cabinets with individual slots, light oil, and a dehumidifier in the tooling room are not luxuries. A NAFDAC inspector who opens a drawer of rusting punches has learned something about your whole quality system in one second.
Custom embossing, and the line you don’t cross
Punch faces can be engraved. Your company logo, a score line, a product code, a strength marking. This is completely normal. Every branded tablet you’ve ever swallowed got its markings from an engraved punch face, and most manufacturers order custom tooling for their own products.
There is one request that turns this from routine procurement into a criminal matter. Asking a toolmaker to reproduce another company’s tablet markings, so your tablet comes out looking like theirs, is counterfeiting. Not a grey area. Not a trademark argument to be settled later.
NAFDAC secured 64 counterfeiting convictions between June 2025 and June 2026, with sentences running from one to seven years and no option of a fine. Between February and March 2025 the agency destroyed over 137 truckloads of counterfeit and substandard product from Idumota, Onitsha and Ariaria. This is being enforced, and it is being enforced against people who thought they were running a small business.
Serious toolmakers know this. Ask for engraving that copies a competitor’s product and a reputable supplier will want to see your trademark registration and your NAFDAC product registration first. A supplier who doesn’t ask is telling you what kind of customers they usually serve, and you don’t want to be in that customer list when Customs pulls the shipment.
We won’t quote tooling with third-party product markings. It isn’t a moral position so much as a practical one. That order ends badly for everyone attached to it, including the sourcing agent whose name is on the paperwork.
What to put in the order
Tooling standard, TSM or EU, stated explicitly. Tooling type, B, D, BB or DB. Number of stations. Tablet dimensions and shape. Steel grade and any coating. Engraving artwork with your own trademark evidence attached. Spare tip quantity. And a dimensional inspection report for the delivered set.
That last one gets skipped constantly. Ask for it anyway. It costs the supplier almost nothing and it’s the only evidence you’ll have if the first batch comes out at the wrong weight.
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