Block Piston 132X75X48 For Biesse CNC Machining Center 6308A0159 Vacuum Sucker

Need a replacement vacuum sucker for a Biesse CNC machining centre? This is the block piston at 132 x 75 x 48 mm, Biesse reference 6308A0159 - the half size in the 132 mm family. 132 x 75 mm sealing face, 48 mm tall, PF (phenol formaldehyde) plastic in brown, grey also available. Heights of 29 mm and 74 mm and the 132 x 146 mm full size are listed too. Seals, ball valves and locating rings are separate items, and customization is supported.

A vacuum table that lets go mid-cut gives no warning. The panel creeps a fraction of a millimetre, the tool follows the program instead of the part, and the piece is scrap. Two more things cost the same money: a sucker that no longer seals on its 132 x 75 mm face, and a replacement ordered by name that arrives one size out.

This is the block piston for a Biesse CNC machining centre, 132X75X48mm, half size of the 132 x 146 mm full pod, Biesse reference 6308A0159. The 132 x 75 mm top face is the area the panel seals on; 48 mm is how far the board rides above the table. The body is PF (phenol formaldehyde) plastic, a thermoset, not a rubber compound, moulded brown, grey also available.

The block piston spreads vacuum across the whole 132 x 75 mm face instead of pulling from one port, so the board is held flat where the program put it. A thermoset body does not take a permanent set like a soft cup. Heights of 29 mm and 74 mm are also listed.

Fit is settled by three numbers off the old part (132, 75, 48) plus the pod height underneath. Seals, ball valves and locating rings are separate items; customization is supported, priced on request.

What the three dimensions and the material actually decide on the table:

• 132 x 75 mm sealing face — the area the panel is pulled down on; the half size of the 132 x 146 mm full pod.
• 48 mm height — sets how far the board rides above the table; 29 mm and 74 mm versions cover the other pod heights.
• PF thermoset body — phenol formaldehyde plastic in brown, grey available, holds its sealing face flat under clamping load.
• Block piston mechanism — vacuum spread across the 132 x 75 mm face rather than drawn from one port.
• Part-number fit — Biesse reference 6308A0159 is on the listing, so the order is matched on a number, not a description.
• Seals, ball valve, locating ring — three accessories sold separately, so a leaking pod is rebuilt item by item, not replaced whole.
• Customization supported — length, width and height move when a drawing differs from the stock 132 x 75 x 48 mm size.
• Materials it holds — wood, plastics and composite panels for furniture, joinery and plastic fabrication.
• Half-size footprint — 132 x 75 mm goes into grid positions where a 132 x 146 mm pod will not fit.

What a sucker that matches the pod adds to a table that has been losing grip:

• The panel stays where the program put it. A 132 x 75 x 48 mm block carries the board at one height for the whole cycle; the tool follows the part.
• A bad part is caught before the cut. A caliper check against 132 x 75 x 48 mm takes a minute; one slipped panel costs the piece.
• Order by number, not by name. Reference 6308A0159 removes the round trip when a 132 x 75 x 48 mm order arrives as the 132 x 146 mm full size.
• Repair the pod, keep the block. Seals, ball valves and locating rings are sold separately, so a leak is fixed at the leaking item.
• One family, three heights. 29 mm, 48 mm and 74 mm on the same 132 mm width means a mixed table comes from one range.
• Thermoset, not rubber. A PF face that stays flat seals across the full 132 x 75 mm area, so the pump works less for the same hold.
• No fixture change at the table. The sucker seats where the old one sat, so the grid layout and the program stay as they were.
• Custom sizes end the workaround. Customization is supported, so a modified machine is matched to a drawing, not shimmed to a stock part.

Yes, if the old sucker measures 132 mm across, 75 mm deep and 48 mm tall and the pod underneath is 48 mm high. Measure the part on the pod and compare those three numbers before ordering; the same family covers 29 mm and 74 mm heights, so a measurement taken off the wrong pod orders the wrong block.

6308A0159. That is the reference carried on this listing for the 132 x 75 x 48 mm half size, and it is the fastest way to confirm the part: quote the number and the size together, because the 132 x 146 mm full size is a different reference (6308A0157).

No. The body is PF, a phenol formaldehyde thermoset, not a rubber compound. That is why the part is checked on dimensions and face flatness rather than on softness: a thermoset does not take a permanent set under repeated clamping the way a soft cup does.

Yes, the height in the part has to match the pod it seats on. The same family is listed in 29 mm, 48 mm and 74 mm heights, so a table that mixes pod heights is ordered from one range rather than from different suppliers.

No, the listing is the block piston itself. Seals, ball valves and locating rings are available as separate items, so a pod that has lost vacuum is rebuilt from the worn accessory plus the block rather than replaced as a whole assembly.

Wood, plastics and composite panels. It is the pod the workpiece sits on inside a Biesse machining centre, used in furniture production, custom woodworking and plastic fabrication, and it holds the panel by vacuum so no clamps sit in the tool path.

Yes. The block is moulded in brown and also listed in grey, and customization is supported. A change of length, width or height is made to a drawing, so send the finished dimensions rather than a size name such as half or full.

On request; there is no fixed list price for this size. Send the quantity, the measurements off the old block and the Biesse machine model, and the current price comes back against that quantity.