We'd been getting returns on infant bodysuits—buttons popping off after three washes, parents rightfully furious—and the hand-pull test just wasn't it anymore, so we started looking for something that actually measured joint force to a standard.
This SKZ804 unit tops out at 500N with a 180mm stroke, and it's built to run ASTM PS79-96 and 16 CFR 1500.51-53, which basically means it's set up for children's garment safety testing out of the box, and it'll take NK, HB, SH, HF, or HP tensimeters depending on what you've got lying around.

For buttons under 6mm it enforces a 50N minimum, and anything over that gets 90N—it's an automatic pass/fail check that catches weak attachments before they ever hit retail, and whole machine weighs 18kg so you can move it between lines without a forklift.

The dimnesions are 350×260×500mm (or 700mm if you get the taller stand version), and it runs on standdard electronic power so there's no compressed air or hydraulic plumbing to deal with; most buyers go with teh 500N model but we've seen labs order custom load ranges for specialty textiles.
Stock was ready when we ordered—shipped within a week or so—and it came with a 12-month warranty and CE/ISO9001 certs in the paperwork, though you'll want to confirm lead time if you're ordering more than 5 units at once (usually 20 days or so for larger batches).
Buttons ≤6mm in diameter meet the 50N requirement. Anything larger than 6mm needs a 90N load. The machine handles both automatically.
Yes, we include both CE and ISO9001:2000 certificates with every unit. Just let us know if you need them in a specific format.
Typical lead time is 7-15 working days. There's no MOQ — you can order a single unit if that's all you need.
The SKZ804 has a universal mounting plate that fits NK, HB, SH, HF, and HP tensimeters. You just clamp yours in and it's ready to go.
Keep it in a dry, dust-free area at room temperature. The compact size (350×260×500mm) makes it easy to store on a shelf or in a cabinet.