140x26x5mm Sealing Cover for SCM CNC Vacuum Suction Cups and Vacuum Blocks

Need to re-seal an SCM vacuum block without buying the block again? This sealing cover measures 140 x 26 x 5 mm — 140 mm long, 26 mm wide, 5 mm thick — SKU 140x26x5mm, in yellow or black. It is the cover that sits between an SCM CNC vacuum block and the panel, so a sheet is held by suction rather than by luck. Three numbers settle fitment: measure the old cover, match 140 / 26 / 5, and it goes into the same seat.

When a vacuum block stops holding a panel, three things usually start the same afternoon: the sheet creeps a few tenths under the cutter, the block comes off the table for inspection, and the search begins for the part that was actually worn. Nine times out of ten that part is the sealing cover, not the block and not the pump.

This is that cover, listed as a spare for SCM CNC vacuum blocks: 140 x 26 x 5 mm, which is 140 mm long, 26 mm wide and 5 mm thick, supplied in yellow or black under SKU 140x26x5mm. It is the interface between the vacuum block and the panel, so the vacuum has a closed path to pull against instead of leaking away along the block face.

The 5 mm section takes the compression, so it wears first. Replacing the cover keeps the block, hose and valve in service, which is why it is sold on its own: one 140 x 26 x 5 mm piece per seat, no block and no fittings.

Fitting is a hand job, as the product notes describe it: remove the old cover, align the new one on the seat, apply gentle pressure until it sits flat. No special tools, no machining, no adhesive.

On a rubber cover, the dimensions and the seat are the whole product.

• 140 mm long — the length the SCM vacuum block seat is cut for, so the cover does not need trimming to fit.
• 26 mm wide — the width that sits inside the seat instead of overhanging the vacuum opening.
• 5 mm thick — the compression section, and the first dimension to check when a cover looks flat.
• Yellow or black — two colour options on the same 140 x 26 x 5 mm body, so a replacement matches what is already on the table.
• Pressed in by hand — remove the old cover, align the new one, apply gentle pressure; no tools, no machining.
• Cover only, not an assembly — the block, hose and valve stay on the machine, so a worn seat is fixed without buying a pod.
• One cover per seat — each piece seals a single block, so a leaking station is dealt with on its own.
• Listed for SCM CNC blocks — carried as an SCM woodworking machine spare alongside the vacuum cups it seals.
• Small and flat to store — at 5 mm thick, a spare lies flat in a drawer without taking shelf space.
• Quoted on request — price follows size and quantity, so send both and the answer is exact.

When a pod loses grip there are two usual answers: an outside technician, or panels that move. A 140 x 26 x 5 mm cover is the third.

• Fix the cover, keep the block. The cover is the only part pressed against the panel, so one 5 mm piece replaces the cost of a complete vacuum block.
• Back on the table the same shift. Pressing a 140 mm cover on needs no machining and no adhesive, so down time is the fitting, not the wait.
• Panels stay where they are put. A sealing face that is not flattened closes the leak path, so suction holds the sheet through the cut.
• One size, one drawer. Every seat of this type takes the same 140 x 26 x 5 mm cover, so the shelf holds one bag, not five part numbers.
• Colour tells you what happened. Chips, nicks and a shiny flattened edge show against yellow, so wear is judged by eye before a panel slips.
• No adapter, no modification. The cover sits in the existing seat at the existing depth, so the machine stays as built.
• Same three numbers every order. 140 / 26 / 5 is the specification, so a repeat order cannot arrive with a different section.
• A quote in one email. Send size, colour and quantity and the price comes back against those three lines.

Yes, if the old cover measures 140 x 26 x 5 mm. Take the worn piece off, read length, width and thickness with a caliper, and compare all three numbers; if any one of them is different, send the size and the matching cover can be quoted instead.

This page is 140 x 26 x 5 mm — 26 mm wide. The 140 x 78 x 5 mm figure that appears in older catalogue text belongs to a different SCM vacuum gasket, so order by the width on the part you are replacing, not by the title alone.

5 mm is the thickness, 26 mm the width and 140 mm the length. The name reads length x width x thickness, which is why a cover ordered from the title without measuring sometimes arrives with the wrong section — measure the seat, not the heading.

No. This item is the sealing cover only. The block, hose and valve stay on the machine; the worn cover comes off the seat and the new one is pressed on in its place.

Yes. The fitting is a hand operation: remove the old cover, align the new one on the seat, and apply gentle pressure until it sits flat — no special tools, no machining and no adhesive.

Either, because colour is a choice and not a different size — both are supplied in 140 x 26 x 5 mm. Yellow makes chips, nicks and a shiny flattened edge easier to see during a daily walk-round.

When the sealing edge looks shiny, flat or nicked, it is finished, even if the part still looks whole. The first symptom is usually a panel that shifts during machining or a block that needs more vacuum than it used to.

Price is on request. Send three lines — size 140x26x5mm, colour yellow or black, and quantity — and the quote comes back against exactly those numbers.