Seals for Packaging and Printing Machinery

Typical sealing issues on packaging and printing lines include:

• Pneumatic cylinders on packaging machines running millions of cycles
• Vacuum pumps, suction cups and manifolds where small O-ring leaks reduce pick-up reliability
• Solvent-based inks, wash-up solutions and adhesives that swell some elastomers
• Corrugator steam rolls and rotary joints running hot under pressure
• Starch and hot-melt glue systems that harden on seals and valves
• Roller bearings and gearboxes that need oil seals to keep ink, paper dust and solvents out

These product families are commonly enquired about in this sector. Open any page for sizes, materials and buying options.

• Pneumatic Seals: Seals for air cylinders, grippers and valves.
• O-ring Kits: O-ring kits for machine maintenance.
• Rotary Shaft and Oil Seals: Oil seals for rollers, gearboxes and drives.
• V-rings and U-rings: V-rings for bearing exclusion on rollers.
• Mechanical Seals: Seals for ink, glue and utility pumps.
• PTFE Gaskets and Seals: PTFE parts for solvent-resistant duties.
• Special Products and Engineered Components: Machined and special parts where standard ones do not fit.

You can also browse all product categories or the online shop, where products are being added.

Solvent exposure is the main factor in elastomer choice around inks and wash-ups; FKM, PTFE or other compounds may be considered depending on the solvent. Pneumatic seals are selected by cylinder bore, rod size and profile. These are typical starting points only; always confirm against the manufacturer's data for your application.

Where a packaging line handles food and seals may contact the product, those parts require technical review and the correct certification documents.

Information that speeds up a correct recommendation:

• Machine make, model and position of the part
• Inks, solvents, adhesives or cleaning agents involved
• Cylinder bore, rod and groove dimensions
• Steam pressure and temperature on corrugator parts

Many pneumatic cylinders carry a code that gives bore and stroke; send that with a photo. For O-rings, measure inside diameter and cross-section using our O-ring measuring guide. Uncommon parts can be reviewed from a drawing or sample.

You can also use find my seal, upload a drawing, or see how our technical support works.

Print and packaging plants usually service machines on planned downtime days. We can quote seal kits per machine, and our metal machining service covers some worn components, with capability confirmed when you enquire. Availability is confirmed per enquiry.

Globseals offers three ways to buy: buy online where a confirmed price is shown, request a quote for custom, bulk or unpriced items, or ask for technical review when identification is unresolved. Call 011 079 6033, WhatsApp 079 508 0989 or email info@globseals.com.