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Here we cover cleaning and jaw replacement for RingGrip and PETClear bottle printing fixtures. Follow these steps to keep fixtures printing clean, without downtime or wasted bottles.
Use our contact form with your system serial.
See also resources and shipping & samples.
RingGrip and PETClear fixtures keep bottles steady so your print heads can lay down sharp, lasting prints. On Gauteng floors, in Cape Town coastal air, or up in Polokwane, regular fixture care means you avoid ragged prints, stuck jaws, or slipped bottles. Clean or swapped jaws ensure print registration stays tight and ink only goes where it should. If you print for a brewery, contract filling line, or skincare run, you likely clean between batches. If your team skips fixture checks, unexpected downtime or wasted blanks usually follows.
Operators and supervisors running RingGrip or PETClear fixtures see best results from hands-on care. If your print bay moves a steady mix of glass and PET, or your production shifts run late, keeping jaws clean pays off. Shops with one-off promo lines or basic mock-up work might not need to swap jaws every week, but forgetting to clean can mean fingerprints, label slip or even printhead crashes. If your team has never swapped jaws before, ask our office to walk you through a remote demo before you start. Those only working with flatbed jobs or single-use mockups will rarely need more than a wipe-down.
Unplug your UV unit and clear the work area. For cleaning, use clean rags with mild alcohol - nothing more aggressive, especially on PET jaws. Wipe away ink, dust, and adhesive, paying attention to groove edges where Highveld dust gathers. For RingGrip jaws, loosen the jaw bolt and slide the jaw off its rail. PETClear jaws use a spring pin - press out carefully, then slide off. Swap in the fresh jaw, ensuring alignment pins sit flush. Tighten bolts evenly, but never overtighten; vibration from three-phase supply can work loose bolts but overtightened threads strip easily.
After fitting new jaws, hand-rotate the fixture to make sure nothing binds and no bottle snags. Inspect for leftover ink or spilled adhesive. If you see uneven wear or scoring, check your previous cleaning steps and the jaw alignment. Print a test pattern using sample bottles to confirm hold and print alignment before the next real run.
We answer fixture queries by email. To help our bay solve your problem as quickly as possible, send these details with your message through our contact form. This helps us link you to the right spares and pads or talk you through the cleaning or jaw swap in plain language.
Skipping fixture cleaning between runs leads to leftover ink, powder or dust, which results in blurred prints or bottle slip. Over-tightening bolts is common, especially if you rush a jaw swap before deadline - stripped threads are expensive and slow to fix. Using acetone or heavy solvents damages PETClear jaws and can warp RingGrip pads. Fitting jaws backwards or misaligning pins leads to bottles sitting off-centre, which throws off registration and causes ink overspray. If you’re unsure, check the resources page for diagrams, or email our team before reassembling.
A supervisor at a Bloemfontein contract shop flags dropped bottles mid-run. They pause, unplug the unit, and wipe jaws clear - finding adhesive build-up from a sticky-necked batch. Swapping the jaw is quick: the operator loosens bolts, slides off the sticky jaw, fits the spare, retightens, wipes with alcohol, and checks for play. A test print confirms the bottle sits true and print edges are clean. Printing starts again within the hour, keeping their contract run on schedule. The operator sends a photo of the worn jaw by email for advice on spares.
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