Cartridge Pin-Count Checks for a Microneedling Pen

Cartridge pin-count checks are a supply and compatibility task for a Microneedling Pen program. The buyer needs to know which pin counts will be used, whether those cartridges lock on the sampled handpiece, and whether later lots can match the same interface. Pin count is a purchasing attribute, not a treatment ranking.

Guangzhou Xingyun E-Commerce Co., Ltd., operating the TBPHP brand, manufactures Microneedling Pen and Derma Pen devices in Guangzhou for OEM and ODM buyers, including clinics, medispas, distributors, and private-label brands.

What should a pin-count check include?

Record the following in the sample file:

• The pin counts the buyer intends to stock, written as a list rather than as “standard assortment”
• Whether each inspected cartridge seats and locks on the sampled handpiece
• Whether lot or type marks on the cartridge packaging are clear enough for receiving staff to identify later deliveries
• Whether the factory can replenish the same counts after the first shipment
• Whether any offered count was not inspected and must stay off the first purchase order

Do not copy a pin-count list from an unrelated catalog. Confirm compatibility on the Microneedling Pen handpiece you have.

How should purchasing use the results?

Once the inspected counts are written down, purchasing should:

• Order only those counts on the first purchase order
• Use the same names or codes on every reorder
• Keep untested counts in a separate “not yet approved” list
• Tell receiving teams which marks identify an approved cartridge

OEM or ODM branding on cartridge packaging can be added when that is agreed. Request CE, UKCA, and RoHS documentation by model, and ask which files, if any, also relate to the consumable.

What problems does a weak pin-count file cause?

A weak file leads to mixed stock. If a new count is introduced later, run the same lock-and-label check before adding it to live stock.

FAQ

Is a higher pin count automatically a better cartridge?

No. Pin count is a specification the buyer must choose and confirm. It is not a quality ranking and not a result claim.

Can cartridges from another platform be tried on the sampled handpiece?

Only as a clearly labeled compatibility test, and only if the buyer accepts that a mismatch may damage the interface. Approved stock should be the cartridges confirmed with the factory.

Should every shipped carton be rechecked against the approved list?

Receiving should at least match type marks and counts to the purchase order. A visual match to the approved sample packaging reduces mixed-stock risk.

After drafting a pin-count list, confirm lock fit and replenishment against the approved handpiece before live stock is ordered.