Woodworking · Flat-bed hold-down
Vacuum Pump for CNC Router
CNC Router duty, sized right: flat-bed hold-down through a porous MDF spoilboard. Real Yash models, oil-free where it matters, ISO 9001:2015 and built in Faridabad since 1998.
- Duty
- flat-bed hold-down through a porous MDF spoilboard
- Airflow
- 300–1,050 m³/hr
- Vacuum
- −350 to −550 mbar
DTYWhat a CNC router asks of the vacuum
A CNC router table is a leak, by design. The spoilboard is porous MDF and the workpiece rarely covers the whole bed, so the vacuum source has to move a large, continuous volume of air to hold a modest depression under the part while air bleeds through the board everywhere else. That makes this a high-flow, moderate-vacuum job — the opposite of a sealed chamber. A regenerative side-channel blower is the right machine here: it pulls −350 to −550 mbar while passing hundreds of m³/hr, runs oil-free so it never mists the wood, and has a single rotating impeller with nothing to service. Where the shop clamps non-porous sheet on gasketed pods or a zoned aluminium bed, the leak collapses and a dry claw-style vacuum pump holds a deeper vacuum on far less flow.
Yash builds both halves of the CNC hold-down problem in Faridabad and has since 1998. The single-stage regenerative blowers give you the through-board flow for MDF spoilboards; the YBDVP dry pumps give you the deep, oil-free vacuum for gasketed fixtures. Everything is ISO 9001:2015, runs continuous 24/7 shop duty, and ships with the intake filter and vacuum-relief valve the router bed needs to protect the impeller from dust.
MDLRecommended models
Real Yash models whose published specifications sit inside this machine's duty window. Every figure is from our catalogue — click any model number for its full datasheet.
Single Stage Turbine Blower
Full range →The porous-MDF workhorse — high through-board flow at −350 to −550 mbar to hold parts flat across the whole bed, oil-free and continuous.
| Model | Power | Flow (m³/hr) | Flow (CFM) | Vacuum (mbar) | Pressure (mbar) | Noise (dB) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| YEBL-1-530 | 7.5 HP | 530 | 312 | -300 | 320 | 80 | 62 |
| YEBL-1-700 | 7.5 HP | 700 | 412 | -200 | 180 | 81 | 66 |
| YEBL-1-1050 | 11 HP | 1050 | 618 | -210 | 210 | 74 | 93 |
Dry Vacuum Pump (Only Vacuum)
Full range →For gasketed pods and zoned aluminium beds where the leak is small — a dry, oil-free pump that holds a deeper vacuum on low flow.
SZESizing note
Size on bed area and spoilboard porosity, not on the part. As a rule of thumb allow the blower to swallow the full open-bed leakage and still hold −400 mbar under the workpiece; a vacuum-relief valve then caps the depression so light parts are not crushed. Two smaller units on zoned manifolds often beat one large machine.
Indicative only — final selection depends on your exact duty point, altitude and air temperature. Send the numbers and an engineer confirms the model.
FAQVacuum Pump for CNC Router — FAQs
- What size vacuum pump do I need for a 4x8 CNC router table?
- For a full 4×8 ft porous-MDF bed, plan around the open-bed leakage rather than the part: a 7.5–12.5 HP single-stage regenerative blower (YEBL-1-700 to YEBL-1-1050) typically holds parts flat while passing the air that bleeds through the board. Zone the bed with valves and add a relief valve so you can concentrate vacuum where the workpiece sits.
- Do I need an oil vacuum pump or oil-free for a CNC router?
- Oil-free. A regenerative blower or a dry claw pump keeps oil mist away from the wood and dust out of your workshop air, and there is no oil to change on 24/7 duty. Oil-sealed pumps are only worth it for sealed, non-porous fixturing where you need a very deep vacuum — and even then a dry YBDVP is usually the cleaner choice.
REFExplore further
RFQ / Request for Quotation
Sizing a vacuum pump for your CNC Router?
Send your duty point (300–1,050 m³/hr at −350 to −550 mbar), the machine make and your site voltage — an engineer sizes the exact model and quotes within 24 hours.