Application

Vacuum clamping on CNC machines

On CNC machines, vacuum holds the workpiece in place without damaging it. Here you can find out how clamping works, which vacuum the manufacturers name and which of their series are intended for it – 179 models from 4 manufacturers.

Compare 179 modelsHow clamping works

  • 179Models
  • 17Series
  • 4Manufacturers
  • 150–500 mbarabs. for clamping (Busch)
ABCDEFG

Touch the points: each part of the clamping system explains itself.

In short

Vacuum clamping and vacuum tables – the key facts

  • PrincipleA sealed area under the workpiece is evacuated; the ambient air pressure presses the panel onto the table – at a pressure difference of 800 mbar with around 80 kN per square metre.
  • Vacuum levelFor clamping, Busch lists 150 to 500 mbar (abs.), i.e. roughly 0.5 to 0.86 bar below ambient pressure. What matters is that the pump holds the vacuum even with leakage.
  • PumpClaw, rotary vane (dry-running or oil-lubricated) and screw vacuum pumps. Atlas Copco names 200 to 300 m³/h for smaller tables and 800 to 900 m³/h for central supply.
  • MaterialMDF and chipboard are porous and let air through; nesting with open contours increases the leakage (Becker). If the vacuum falls below a limit value, the panel can shift (Leybold).
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  • Air (vacuum)
  • Exhaust air

Operating principle

How vacuum clamping works on the vacuum table

Leybold describes two main methods: the grid table, on which a sealing cord delimits the area under the panel, and tables with vacuum pods, which are turned up or down depending on the shape of the part. Busch describes clamping systems made of several suction cups that adapt to the shape and size of the workpiece.

The drawing shows the basic principle in section. The clamping tables and pumps of the individual manufacturers differ in detail.

  1. SealingA sealing cord, suction cups or pods delimit the area under the workpiece.
  2. EvacuatingThe pump draws the air out from under the panel. At a pressure difference of 800 mbar, the ambient air presses on every square metre with around 80 kN – the weight of just over 8 tonnes.
  3. HoldingThe vacuum must remain stable throughout the entire machining process. If it falls below a certain value, the panel can shift (Leybold).

Vacuum and sizing

How much vacuum a vacuum table needs

The lower the absolute pressure under the workpiece, the greater the pressure difference to the surroundings and the more firmly the panel is pressed down.

Vacuum in CNC processes according to Busch (mbar abs.)

Clamping
150–500 mbar
Moving and lifting
300–900 mbar
Sawdust extraction
800–900 mbar
02505007501,000 mbar

Suction capacity under leakage

Becker: it is not the ultimate pressure alone that decides, but the suction capacity available under real leakage conditions. Nesting applications generally need high suction volume flows.

What determines the size

Becker names the panel size, the material density, the machining strategy and the total leakage. Atlas Copco: larger workpieces need larger suction cups.

Guide values for the volume flow

Atlas Copco names pumps with 200 to 300 m³/h for smaller tables, and pumps with 800 to 900 m³/h for supplying several tables centrally.

Speed on demand

Frequency-controlled pumps adapt the suction capacity to the workpiece size and the material (Becker VARIAIR) and compensate for falling suction capacity when there are leaks (Atlas Copco VSD). Leybold names the VAControl CAB control, which lowers the speed between and during cycles as soon as the required vacuum is reached.

Technology

Which vacuum pump for the CNC router? The manufacturers’ series

Listed are the series the manufacturer itself names for vacuum clamping or CNC milling. “Show only …” sets the filter of the product overview.

In addition, Atlas Copco names its DZS claw vacuum pumps for CNC milling and its side channel blowers of the DB series (DBS, DBSt, DBD, DBDt) for vacuum tables; the DZS series also includes pressure versions and is therefore not in the list below. Elmo Rietschle names CNC fixing as an application in wood processing without specifying a series for it.

Product overview

All 179 models for vacuum clamping compared

Use the filters on the left to narrow the selection – by manufacturer, technology and the models’ key figures, for 50 or 60 Hz.

Atlas Copco DVS series 10 models

DVS 5Pumping speed 5 m³/h 50 Hz6 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.12 kW 50 Hz0.15 kW 60 HzVariants 3
DVS 8Pumping speed 8 m³/h 50 Hz9 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.25 kW 50 Hz0.3 kW 60 HzVariants 3
DVS 16Pumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants 3
DVS 25Pumping speed 25 m³/h 50 Hz29 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants 3
DVS 40Pumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 120 mbarRated motor power 1.3 kW 50 Hz1.5 kW 60 HzVariants 3
DVS 60Pumping speed 60 m³/h 50 Hz70 m³/h 60 HzUltimate pressure 150 mbarRated motor power 1.5 kW 50 Hz1.8 kW 60 HzVariants 3
DVS 80Pumping speed 80 m³/h 50 Hz90 m³/h 60 HzUltimate pressure 150 mbarRated motor power 2.2 kW 50 Hz3 kW 60 HzVariants 3
DVS 100Pumping speed 100 m³/h 50 Hz115 m³/h 60 HzUltimate pressure 150 mbarRated motor power 3.4 kW 50 Hz4 kW 60 HzVariants 3
DVS 140Pumping speed 130 m³/h 50 Hz150 m³/h 60 HzUltimate pressure 150 – 200 mbarRated motor power 3.4 kW 50 Hz4 kW 60 HzVariants 3
DVS 12Pumping speed 14 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.45 kW 60 HzVariants 1

Atlas Copco GHS VSD+ series 21 models

GHS 350 VSD+Pumping speed 400 m³/h 50 Hz400 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 5.5 kW 50 Hz5.5 kW 60 HzVariants 29
GHS 402 VSD+Pumping speed 467 m³/h 50 Hz467 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 5.5 – 7.5 kW 50 Hz5.5 – 7.5 kW 60 HzVariants 4
GHS 585 VSD+Pumping speed 560 m³/h 50 Hz560 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants 30
GHS 602 VSD+Pumping speed 640 m³/h 50 Hz640 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 7.5 – 11 kW 50 Hz7.5 – 11 kW 60 HzVariants 4
GHS 730 VSD+Pumping speed 730 m³/h 50 Hz730 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 30
GHS 752 VSD+Pumping speed 805 m³/h 50 Hz805 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 11 – 15 kW 50 Hz11 – 15 kW 60 HzVariants 4
GHS 900 VSD+Pumping speed 870 m³/h 50 Hz870 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants 32
GHS 902 VSD+Pumping speed 917 m³/h 50 Hz917 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 15 – 18.5 kW 50 Hz15 – 18.5 kW 60 HzVariants 4
GHS 1002 VSD+Pumping speed 1,039 m³/h 50 Hz1,039 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants
GHS 1202 VSD+Pumping speed 1,172 m³/h 50 Hz1,172 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants 9
GHS 1300 VSD+Pumping speed 1,250 – 1,615 m³/h 50 Hz1,250 – 1,615 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 18 – 22 kW 50 Hz18 – 22 kW 60 HzVariants 33
GHS 1402 VSD+Pumping speed 1,383 m³/h 50 Hz1,383 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 9
GHS 1602 VSD+Pumping speed 1,581 m³/h 50 Hz1,581 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 30 kW 50 Hz30 kW 60 HzVariants 9
GHS 1600 VSD+Pumping speed 1,590 – 1,811 m³/h 50 Hz1,590 – 1,811 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 28 – 30 kW 50 Hz28 – 30 kW 60 HzVariants 33
GHS 2002 VSD+Pumping speed 1,771 m³/h 50 Hz1,771 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 37 kW 50 Hz37 kW 60 HzVariants 9
GHS 1900 VSD+Pumping speed 1,810 m³/h 50 Hz1,810 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 37 kW 50 Hz37 kW 60 HzVariants 21
GHS 2700 VSD+Pumping speed 2,674 m³/h 50 Hz2,674 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 45 kW 50 Hz45 kW 60 HzVariants 8
GHS 3400 VSD+Pumping speed 3,268 m³/h 50 Hz3,268 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 55 kW 50 Hz55 kW 60 HzVariants 8
GHS 3800 VSD+Pumping speed 3,724 m³/h 50 Hz3,724 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 55 kW 50 Hz55 kW 60 HzVariants 9
GHS 4600 VSD+Pumping speed 4,494 m³/h 50 Hz4,494 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 75 kW 50 Hz75 kW 60 HzVariants 9
GHS 5400 VSD+Pumping speed 5,136 m³/h 50 Hz5,136 m³/h 60 HzUltimate pressure 0.35 mbarRated motor power 90 kW 50 Hz90 kW 60 HzVariants 9

Becker BCV series 7 models

BCV 100Pumping speed 100 m³/h 50 Hz120 m³/h 60 HzUltimate pressure 50 mbarRated motor power 2.2 – 3 kW 50 Hz2.2 – 3 kW 60 HzVariants 4
BCV 150Pumping speed 150 m³/h 50 Hz180 m³/h 60 HzUltimate pressure 100 mbarRated motor power 3 – 4 kW 50 Hz3 – 4 kW 60 HzVariants 4
BCV 300Pumping speed 275 m³/h 50 Hz325 m³/h 60 HzUltimate pressure 150 mbarRated motor power 5.5 – 7.5 kW 50 Hz5.5 – 7.5 kW 60 HzVariants 4
BCV 400Pumping speed 400 m³/h 50 Hz470 m³/h 60 HzUltimate pressure 200 mbarRated motor power 9.2 kW 50 Hz11.8 kW 60 HzVariants 5
BCV 400 FDPumping speed 400 m³/h 50 Hz470 m³/h 60 HzUltimate pressure 200 mbarRated motor power 7.5 kW 50 Hz9.2 kW 60 HzVariants 4
BCV 500Pumping speed 500 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 9.2 kW 50 Hz11.8 kW 60 HzVariants 5
BCV 500 FDPumping speed 500 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 9.2 kW 50 Hz11.8 kW 60 HzVariants 5

Becker KVT series 4 models

KVT 3.60 vacuum pumpKVT 3.60Pumping speed 55 m³/h 50 Hz66 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.80 vacuum pumpKVT 3.80Pumping speed 67 m³/h 50 Hz78.5 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.100 vacuum pumpKVT 3.100Pumping speed 98 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power 3 kW 50 Hz3.6 kW 60 HzVariants 8
KVT 3.140 vacuum pumpKVT 3.140Pumping speed 129 m³/h 50 Hz154 m³/h 60 HzUltimate pressure 100 mbarRated motor power 4 kW 50 Hz4.5 – 4.8 kW 60 HzVariants 7

Becker KVX series 4 models

KVT 3.60 vacuum pumpKVX 3.60Pumping speed 55 m³/h 50 Hz66 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.80 vacuum pumpKVX 3.80Pumping speed 67 m³/h 50 Hz78.5 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz2.6 kW 60 HzVariants 6
KVT 3.100 vacuum pumpKVX 3.100Pumping speed 98 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power 3 kW 50 Hz3.6 kW 60 HzVariants 8
KVT 3.140 vacuum pumpKVX 3.140Pumping speed 129 m³/h 50 Hz154 m³/h 60 HzUltimate pressure 100 mbarRated motor power 4 kW 50 Hz4.5 – 4.8 kW 60 HzVariants 7

Becker VARIAIR BCV series 3 models

VARIAIR BCV 100Pumping speed 120 m³/h 50 Hz120 m³/h 60 HzUltimate pressure 50 mbarRated motor power Variants
VARIAIR BCV 150Pumping speed 180 m³/h 50 Hz180 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR BCV 300Pumping speed 325 m³/h 50 Hz325 m³/h 60 HzUltimate pressure 150 mbarRated motor power Variants

Becker VARIAIR KVT series 3 models

VARIAIR KVT 3.80/0-400Pumping speed 76 m³/h 50 Hz76 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVT 3.100/0-400Pumping speed 112 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVT 3.140/0-400Pumping speed 145 m³/h 50 Hz145 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants

Becker VARIAIR KVX series 3 models

VARIAIR KVX 3.80/0-400Pumping speed 76 m³/h 50 Hz76 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVX 3.100/0-400Pumping speed 112 m³/h 50 Hz112 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants
VARIAIR KVX 3.140/0-400Pumping speed 145 m³/h 50 Hz145 m³/h 60 HzUltimate pressure 100 mbarRated motor power Variants

Becker VARIAIR VTLF series 2 models

VARIAIR VTLF 2.250/0-400Pumping speed 280 m³/h 50 Hz280 m³/h 60 HzUltimate pressure 200 mbarRated motor power Variants
VARIAIR VTLF 2.500/0-400Pumping speed 560 m³/h 50 Hz560 m³/h 60 HzUltimate pressure 250 mbarRated motor power Variants

Becker VARIAIR VXLF series 2 models

VARIAIR VXLF 2.250/0-400Pumping speed 280 m³/h 50 Hz280 m³/h 60 HzUltimate pressure 200 mbarRated motor power Variants
VARIAIR VXLF 2.500/0-400Pumping speed 560 m³/h 50 Hz560 m³/h 60 HzUltimate pressure 250 mbarRated motor power Variants

Becker VTLF series 6 models

VTLF 2.200 vacuum pumpVTLF 2.200Pumping speed 178 m³/h 50 Hz218 m³/h 60 HzUltimate pressure 200 mbarRated motor power 4 kW 50 Hz4.8 kW 60 HzVariants 4
VTLF 2.250 vacuum pumpVTLF 2.250Pumping speed 244 m³/h 50 Hz286 m³/h 60 HzUltimate pressure 200 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 5
VTLF 2.250 SKPumping speed 247 m³/h 50 Hz295 m³/h 60 HzUltimate pressure 100 mbarRated motor power 7.5 kW 50 Hz9 kW 60 HzVariants 4
VTLF 2.360 vacuum pumpVTLF 2.360Pumping speed 351 m³/h 50 Hz402 m³/h 60 HzUltimate pressure 250 mbarRated motor power 11 kW 50 Hz13.2 kW 60 HzVariants 4
VTLF 2.400 vacuum pumpVTLF 2.400Pumping speed 390 m³/h 50 Hz460 m³/h 60 HzUltimate pressure 200 mbarRated motor power 7.5 – 11 kW 50 Hz9 – 13.2 kW 60 HzVariants 5
VTLF 2.500 vacuum pumpVTLF 2.500Pumping speed 495 m³/h 50 Hz570 m³/h 60 HzUltimate pressure 250 mbarRated motor power 11 kW 50 Hz13.2 kW 60 HzVariants 4

Becker VXLF series 5 models

VTLF 2.200 vacuum pumpVXLF 2.200Pumping speed 178 m³/h 50 Hz218 m³/h 60 HzUltimate pressure 200 mbarRated motor power 4 kW 50 Hz4.8 kW 60 HzVariants 4
VTLF 2.250 vacuum pumpVXLF 2.250Pumping speed 244 m³/h 50 Hz286 m³/h 60 HzUltimate pressure 200 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 5
VXLF 2.250 SKPumping speed 247 m³/h 50 Hz295 m³/h 60 HzUltimate pressure 100 mbarRated motor power 7.5 kW 50 Hz9 kW 60 HzVariants 4
VTLF 2.400 vacuum pumpVXLF 2.400Pumping speed 390 m³/h 50 Hz460 m³/h 60 HzUltimate pressure 200 mbarRated motor power 7.5 – 11 kW 50 Hz9 – 13.2 kW 60 HzVariants 5
VTLF 2.500 vacuum pumpVXLF 2.500Pumping speed 495 m³/h 50 Hz570 m³/h 60 HzUltimate pressure 250 mbarRated motor power 11 kW 50 Hz13.2 kW 60 HzVariants 4

Busch MINK series 32 models

MINK MB 0018 APumping speed 18 m³/h 50 Hz18 m³/h 60 HzUltimate pressure 600 mbarRated motor power 0.5 kW 50 Hz0.5 kW 60 HzVariants 2
MINK MV 0040 E ECOTORQUEPumping speed 40 m³/h 50 Hz40 m³/h 60 HzUltimate pressure 40 mbarRated motor power Variants
MINK MI 2124 BVPumping speed 50 m³/h 50 Hz60 m³/h 60 HzUltimate pressure 20 mbarRated motor power 2 kW 50 Hz2.4 kW 60 HzVariants
MINK MV 0060 E ECOTORQUEPumping speed 60 m³/h 50 Hz60 m³/h 60 HzUltimate pressure 40 mbarRated motor power Variants
MINK MM 0084 APumping speed 62 m³/h 50 Hz75 m³/h 60 HzUltimate pressure 60 mbarRated motor power 1.5 kW 50 Hz1.7 kW 60 HzVariants
MINK MM 1104 BVPumping speed 62 m³/h 50 Hz75 m³/h 60 HzUltimate pressure 60 mbarRated motor power 1.5 kW 50 Hz1.7 kW 60 HzVariants 10
MINK MM 1104 CVMPumping speed 62 m³/h 50 HzUltimate pressure 400 mbarRated motor power 1.3 kW 50 HzVariants
MINK MM 0104 APumping speed 80 m³/h 50 Hz95 m³/h 60 HzUltimate pressure 60 mbarRated motor power 2.2 kW 50 Hz2.4 kW 60 HzVariants
MINK MM 1144 BVPumping speed 80 m³/h 50 Hz95 m³/h 60 HzUltimate pressure 60 mbarRated motor power 2.2 kW 50 Hz2.4 kW 60 HzVariants 9
MINK MV 0080 E ECOTORQUEPumping speed 80 m³/h 50 Hz80 m³/h 60 HzUltimate pressure 40 mbarRated motor power Variants
MINK MM 0142 APumping speed 110 m³/h 50 Hz135 m³/h 60 HzUltimate pressure 40 mbarRated motor power 3 kW 50 Hz3.4 kW 60 HzVariants
MINK MM 1102 BVPumping speed 110 m³/h 50 Hz135 m³/h 60 HzUltimate pressure 60 mbarRated motor power 3 kW 50 Hz3.4 kW 60 HzVariants 6
MINK MM 1102 CVMPumping speed 110 m³/h 50 HzUltimate pressure 400 mbarRated motor power 2.2 kW 50 HzVariants
MINK MI 2122 BVPumping speed 120 m³/h 50 Hz145 m³/h 60 HzUltimate pressure 20 mbarRated motor power 5.1 kW 50 Hz6.8 kW 60 HzVariants
MINK MM 0182 APumping speed 140 m³/h 50 Hz175 m³/h 60 HzUltimate pressure 40 mbarRated motor power 3.5 kW 50 Hz4.8 kW 60 HzVariants
MINK MM 1142 BVPumping speed 140 m³/h 50 Hz175 m³/h 60 HzUltimate pressure 60 mbarRated motor power 3.5 kW 50 Hz4.8 kW 60 HzVariants 13
MINK MM 1324 AVPumping speed 160 m³/h 50 Hz190 m³/h 60 HzUltimate pressure 60 mbarRated motor power 4 kW 50 Hz4.2 kW 60 HzVariants 2
MINK MM 1202 AVPumping speed 200 m³/h 50 Hz240 m³/h 60 HzUltimate pressure 100 mbarRated motor power 4.3 kW 50 Hz5.2 kW 60 HzVariants 11
MINK MM 1252 AVPumping speed 245 m³/h 50 Hz290 m³/h 60 HzUltimate pressure 100 mbarRated motor power 5.5 kW 50 Hz6.5 kW 60 HzVariants 8
MINK MW 0332 BPumping speed 280 m³/h 50 Hz330 m³/h 60 HzUltimate pressure 0.8 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants
MINK MV 0312 BPumping speed 290 m³/h 50 Hz345 m³/h 60 HzUltimate pressure 150 mbarRated motor power 5.5 kW 50 Hz6.5 kW 60 HzVariants 4
MINK MM 1322 AVPumping speed 300 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 150 mbarRated motor power 6 kW 50 Hz8 kW 60 HzVariants 10
MINK MV 0310 BPumping speed 345 m³/h 50 Hz345 m³/h 60 HzUltimate pressure 150 mbarRated motor power 6 kW 50 Hz6 kW 60 HzVariants
MINK MV 0360 A ECOTORQUEPumping speed 360 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 100 mbarRated motor power 7.5 kW 50 Hz7.5 kW 60 HzVariants
MINK MM 1402 AVPumping speed 400 m³/h 50 Hz470 m³/h 60 HzUltimate pressure 200 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 3
MINK MV 0502 BPumping speed 400 m³/h 50 Hz470 m³/h 60 HzUltimate pressure 200 mbarRated motor power 7.5 kW 50 Hz9.5 kW 60 HzVariants 2
MINK MV 0500 BPumping speed 470 m³/h 50 Hz470 m³/h 60 HzUltimate pressure 200 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants
MINK MM 1502 AVPumping speed 500 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 11 kW 50 Hz12.6 kW 60 HzVariants 5
MINK MV 0602 BPumping speed 500 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 11 kW 50 Hz12.6 kW 60 HzVariants 3
MINK MV 0600 BPumping speed 600 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 15 kW 50 Hz15 kW 60 HzVariants
MINK MV 1202 BPumping speed 950 m³/h 50 Hz1,150 m³/h 60 HzUltimate pressure 200 mbarRated motor power 18.5 kW 50 Hz22 kW 60 HzVariants 3
MINK MV 1200 B ECOTORQUEPumping speed 1,150 m³/h 50 Hz1,150 m³/h 60 HzUltimate pressure 200 mbarRated motor power 25 kW 50 Hz25 kW 60 HzVariants

Busch R5 series 58 models

R5 PB 0003 DPumping speed 3 m³/h 50 Hz3.8 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.1 kW 50 Hz0.12 kW 60 HzVariants
R5 PB 0004 CPumping speed 4 m³/h 50 Hz4.8 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.1 kW 50 Hz0.12 kW 60 HzVariants
R5 PB 0008 CPumping speed 8 m³/h 50 Hz9.6 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.35 kW 50 Hz0.45 kW 60 HzVariants
R5 KB 0010 EPumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.37 kW 50 Hz0.37 kW 60 HzVariants 1
R5 KD 0012 APumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.37 kW 50 Hz0.37 kW 60 HzVariants
R5 RA 0010 CPumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 0.45 kW 50 Hz0.45 kW 60 HzVariants 1
R5 RC 0010 CPumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 20 mbarRated motor power 0.45 kW 50 Hz0.45 kW 60 HzVariants 1
R5 KB 0016 EPumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.55 kW 50 Hz0.55 kW 60 HzVariants 1
R5 KD 0020 APumping speed 16 m³/h 50 Hz20 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.55 kW 50 Hz0.55 kW 60 HzVariants
R5 RA 0016 CPumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 0.55 kW 50 Hz0.7 kW 60 HzVariants 1
R5 RC 0016 CPumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 20 mbarRated motor power 0.55 kW 50 Hz0.7 kW 60 HzVariants 1
R5 KB 0020 DPumping speed 20 m³/h 50 Hz24 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.75 kW 50 Hz0.75 kW 60 HzVariants 1
R5 RB 0021 CPumping speed 20 m³/h 50 Hz24 m³/h 60 HzUltimate pressure 1 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants 2
R5 RC 0021 CPumping speed 20 m³/h 50 Hz24 m³/h 60 HzUltimate pressure 20 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants
R5 KD 0025 APumping speed 22 m³/h 50 Hz25 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.75 kW 50 Hz0.9 kW 60 HzVariants
R5 KB 0025 FPumping speed 25 m³/h 50 Hz30 m³/h 60 HzUltimate pressure 2 mbarRated motor power 0.9 kW 50 Hz1.1 kW 60 HzVariants 1
R5 RA 0025 FPumping speed 25 m³/h 50 Hz30 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 1 kW 50 Hz1.2 kW 60 HzVariants 3
R5 KB 0040 DPumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 2 mbarRated motor power 1.5 kW 50 Hz1.5 kW 60 HzVariants 1
R5 RA 0040 FPumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 1.4 kW 50 Hz1.7 kW 60 HzVariants 3
R5 RE 0040 CPumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 1.5 kW 50 Hz2.2 kW 60 HzVariants
R5 RA 0063 FPumping speed 63 m³/h 50 Hz76 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 2 kW 50 Hz2.4 kW 60 HzVariants 3
R5 RE 0063 CPumping speed 63 m³/h 50 Hz76 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 2.2 kW 50 Hz3 kW 60 HzVariants
R5 RA 0100 FPumping speed 100 m³/h 50 Hz120 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 2.7 kW 50 Hz3.4 kW 60 HzVariants 3
R5 RA 0155 APumping speed 150 m³/h 50 Hz175 m³/h 60 HzUltimate pressure 0.5 mbarRated motor power 4 kW 50 Hz4.2 kW 60 HzVariants
R5 RA 0165 DPumping speed 160 m³/h 50 Hz190 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 3
R5 RA 0200 APumping speed 160 m³/h 50 Hz190 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 4 kW 50 Hz4.8 kW 60 HzVariants
R5 RD 0200 APumping speed 160 m³/h 50 Hz190 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 4 kW 50 Hz4.2 kW 60 HzVariants 2
R5 RA 0165 D ECOTORQUEPumping speed 190 m³/h 50 Hz190 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0200 A ECOTORQUEPumping speed 190 m³/h 50 Hz190 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0205 DPumping speed 200 m³/h 50 Hz240 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 3
R5 RA 0240 APumping speed 200 m³/h 50 Hz240 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants
R5 RD 0240 APumping speed 200 m³/h 50 Hz240 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 4 kW 50 Hz4.2 kW 60 HzVariants 1
R5 RA 0205 D ECOTORQUEPumping speed 240 m³/h 50 Hz240 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0240 A ECOTORQUEPumping speed 240 m³/h 50 Hz240 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0255 DPumping speed 250 m³/h 50 Hz300 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 7.5 kW 50 Hz9.2 kW 60 HzVariants 3
R5 RD 0300 APumping speed 250 m³/h 50 Hz300 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 1
R5 RA 0255 D ECOTORQUEPumping speed 300 m³/h 50 Hz300 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0305 DPumping speed 300 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 8.3 kW 50 Hz10 kW 60 HzVariants 3
R5 RA 0360 APumping speed 300 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 7.5 kW 50 Hz9.2 kW 60 HzVariants
R5 RD 0360 APumping speed 300 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 5.5 kW 50 Hz6.6 kW 60 HzVariants 2
R5 RA 0305 D ECOTORQUEPumping speed 360 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0360 A ECOTORQUEPumping speed 360 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0400 CPumping speed 410 m³/h 50 Hz480 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 11 kW 50 Hz15 kW 60 HzVariants 3
R5 RA 0520 APumping speed 430 m³/h 50 Hz520 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 11 kW 50 Hz12.5 kW 60 HzVariants 1
R5 RA 0400 C ECOTORQUEPumping speed 480 m³/h 50 Hz480 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0502 CPumping speed 510 m³/h 50 Hz590 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 11 kW 50 Hz15 kW 60 HzVariants 1
R5 RA 0520 A ECOTORQUEPumping speed 520 m³/h 50 Hz520 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0502 C ECOTORQUEPumping speed 580 m³/h 50 Hz580 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0600 A ECOTORQUEPumping speed 600 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants
R5 RA 0630 CPumping speed 630 m³/h 50 Hz760 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 15 kW 50 Hz18.5 kW 60 HzVariants 2
R5 RA 0630 C ECOTORQUEPumping speed 745 m³/h 50 Hz745 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power Variants
R5 RA 0840 A ECOTORQUEPumping speed 840 m³/h 50 Hz840 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants
R5 RA 0840 B PLUSPumping speed 840 m³/h 50 Hz840 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 18.5 kW 50 Hz18.5 kW 60 HzVariants
R5 RA 1000 BPumping speed 1,000 m³/h 50 Hz1,200 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 22 kW 50 Hz30 kW 60 HzVariants 1
R5 RA 1000 A PLUSPumping speed 1,200 m³/h 50 Hz1,200 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 30 kW 50 Hz30 kW 60 HzVariants
R5 RA 1000 B ECOTORQUEPumping speed 1,200 m³/h 50 Hz1,200 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power Variants
R5 RA 1600 BPumping speed 1,600 m³/h 50 Hz1,800 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 30 kW 50 Hz37 kW 60 HzVariants 1
R5 RA 1600 A PLUSPumping speed 1,800 m³/h 50 Hz1,800 m³/h 60 HzUltimate pressure 0.3 mbarRated motor power 37 kW 50 Hz37 kW 60 HzVariants

Busch SECO series 10 models

SECO SV 1003 DPumping speed 3 m³/h 50 Hz3.6 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.1 kW 50 Hz0.12 kW 60 HzVariants 2
SECO SV 1005 DPumping speed 5 m³/h 50 Hz6 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.14 kW 50 Hz0.16 kW 60 HzVariants 3
SECO SV 1008 CPumping speed 7.3 m³/h 50 Hz8.8 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.25 kW 50 Hz0.3 kW 60 HzVariants 3
SECO SV 1010 CPumping speed 10 m³/h 50 Hz12 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.37 kW 50 Hz0.37 kW 60 HzVariants 2
SECO SV 1016 CPumping speed 16 m³/h 50 Hz19 m³/h 60 HzUltimate pressure 150 mbarRated motor power 0.55 kW 50 Hz0.55 kW 60 HzVariants 2
SECO SV 1025 CPumping speed 25 m³/h 50 Hz30 m³/h 60 HzUltimate pressure 120 mbarRated motor power 0.9 kW 50 Hz0.9 kW 60 HzVariants 1
SECO SV 1040 DPumping speed 40 m³/h 50 Hz48 m³/h 60 HzUltimate pressure 120 mbarRated motor power 1.25 kW 50 Hz1.25 kW 60 HzVariants 1
SECO SV 1063 BPumping speed 55 m³/h 50 Hz65 m³/h 60 HzUltimate pressure 100 mbarRated motor power 1.7 kW 50 Hz2.2 kW 60 HzVariants 1
SECO SV 1080 BPumping speed 62 m³/h 50 Hz77 m³/h 60 HzUltimate pressure 100 mbarRated motor power 2.2 kW 50 Hz3 kW 60 HzVariants 1
SECO SV 1100 CPumping speed 83 m³/h 50 Hz97 m³/h 60 HzUltimate pressure 100 mbarRated motor power 3 kW 50 Hz4 kW 60 HzVariants

Leybold CLAWVAC series 5 models

CLAWVAC CP 65 BPumping speed 65 m³/h 50 Hz79 m³/h 60 HzUltimate pressure 50 mbarRated motor power 1.8 – 2.2 kW 50 Hz2.2 kW 60 HzVariants 8
CLAWVAC CP 150 BPumping speed 152 m³/h 50 Hz184 m³/h 60 HzUltimate pressure 50 mbarRated motor power 3.7 – 4 kW 50 Hz3.7 kW 60 HzVariants 8
CLAWVAC CP 300 BPumping speed 295 m³/h 50 Hz347 m³/h 60 HzUltimate pressure 140 – 200 mbarRated motor power 6.2 – 7.5 kW 50 Hz7.5 kW 60 HzVariants 8
CLAWVAC CP 500Pumping speed 500 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 150 – 200 mbarRated motor power 9.2 kW 50 Hz11 kW 60 HzVariants 5
CLAWVAC CP 1000Pumping speed 950 m³/h 50 Hz1,140 m³/h 60 HzUltimate pressure 150 – 200 mbarRated motor power 18.5 kW 50 Hz22 kW 60 HzVariants 5

Leybold NOVADRY series 4 models

NOVADRY ND 65Pumping speed 63 m³/h 50 Hz63 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 1.5 kW 50 Hz1.5 kW 60 HzVariants 3
NOVADRY screw vacuum pumpNOVADRY ND 100Pumping speed 96 m³/h 50 Hz96 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 2.2 kW 50 Hz2.2 kW 60 HzVariants 3
NOVADRY screw vacuum pumpNOVADRY ND 160Pumping speed 138 m³/h 50 Hz138 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 3 kW 50 Hz3 kW 60 HzVariants 3
NOVADRY screw vacuum pumpNOVADRY ND 200Pumping speed 175 m³/h 50 Hz175 m³/h 60 HzUltimate pressure 0.1 mbarRated motor power 4 kW 50 Hz4 kW 60 HzVariants 3

Model comparison

Models a manufacturer no longer carries in its current range are listed in its “Outdated models” section.

Industries

Vacuum clamping in other industries

Vacuum does not only hold wood. The manufacturers list these uses on their pages.

Woodworking

Panels on CNC machines and at manual workstations – named by Atlas Copco, Becker, Busch, Elmo Rietschle and Leybold.

Vacuum in woodworking →

Glass, plastics and sheet metal

Clamping of panel material such as glass, plastic or sheet metal (Becker).

Printing and paper

Printing plates in exposure units and CTP systems, print and paper products on cutting tables and screen printing machines (Becker).

Textiles and leather

Textiles and leather on cutting tables (Becker). On fabric cutting tables, an air cushion positions the fabric and vacuum holds it during cutting (Elmo Rietschle).

Stone

Vacuum gives the stone a secure hold during cutting and polishing (Atlas Copco).

Electronics and semiconductors

Fixing of components in test processes in the semiconductor industry (Becker).

Fish processing

A holding vacuum fixes the fish on the filleting table so that the cuts stay precise (Busch).

Frequently asked questions

Frequently asked questions about the vacuum table and vacuum clamping

How does a vacuum table on a CNC router work?

A sealed area under the workpiece is evacuated: on the grid table, a sealing cord in the grooves delimits the area; with suction cups and vacuum pods, it is the area of the suction cups. The vacuum pump draws out the air underneath, and the ambient air pressure presses the panel onto the table – at a pressure difference of 800 mbar with around 80 kN per square metre, the weight of just over 8 tonnes. The drawing above shows the set-up in section.

How much vacuum does a vacuum table need?

For clamping on CNC machines, Busch lists 150 to 500 mbar (abs.), i.e. roughly 0.5 to 0.86 bar below ambient pressure. What matters is that the pump holds this vacuum even with leakage – in nesting with open contours, the leakage is high. For moving and lifting panels, Busch lists 300 to 900 mbar (abs.).

Which vacuum pump is suitable for a CNC router?

Claw vacuum pumps (Becker BCV, Busch MINK, Leybold CLAWVAC, Atlas Copco DZS), dry-running rotary vane vacuum pumps (Becker VTLF, VXLF, KVT, KVX, Busch SECO, Atlas Copco DVS), oil-lubricated rotary vane vacuum pumps (Busch R5) and screw vacuum pumps (Atlas Copco GHS VSD+, Leybold NOVADRY). Becker lists for its series: BCV 275 to 600 m³/h and 150 to 200 mbar, VTLF and VXLF 280 to 570 m³/h and 200 to 350 mbar, KVT and KVX 67 to 145 m³/h and 100 mbar. All models are in the product overview.

How large does the vacuum pump need to be?

Atlas Copco names 200 to 300 m³/h for smaller tables and 800 to 900 m³/h for pumps that supply several tables centrally. As the factors that determine the sizing, Becker names the panel size, the material density, the machining strategy and the total leakage.

Is a side channel blower suitable as a vacuum pump for the vacuum table?

For clamping on CNC machines, Becker and Busch do not name side channel blowers but claw, rotary vane and screw vacuum pumps. They list side channel blowers for tasks where a weaker vacuum is sufficient: Busch the SAMOS for lifting and feeding panels and for sawdust extraction (300 to 900 mbar abs.), Becker the SV series for vacuum lifters. Atlas Copco names its side channel blowers of the DB series for vacuum tables.

Oil-free or oil-lubricated – which pump for the clamping table?

For clamping, Busch names the dry-running MINK and SECO as well as the oil-lubricated R5. For CNC clamping, Becker names the oil-free BCV, VTLF, VXLF, KVT and KVX and, for dust-intensive applications, recommends pumps with a large filter area in which no oil can combine with wood dust to form deposits. For CNC milling and clamping, Atlas Copco names the dry-running DVS, the DZS claw vacuum pump and the GHS VSD+ screw vacuum pump.

Grid table, suction cups or vacuum pods – what is the difference?

Leybold describes two main methods: the grid table, on which a sealing cord in the grooves delimits the area under the panel, and tables with vacuum pods, which are turned up or down depending on the shape of the part. Busch describes clamping systems made of several suction cups that adapt to the shape and size of the workpiece; Atlas Copco: larger workpieces need larger suction cups.

Why does the workpiece shift during milling?

As typical causes, Becker names too little vacuum with porous materials such as MDF or chipboard and high leakage in nesting. Leybold: if the vacuum falls below a certain value, the panel can shift and the cut suffers. Frequency-controlled pumps compensate for falling suction capacity when there are leaks (Atlas Copco VSD).

Why does the vacuum table hold MDF or chipboard less well than dense materials?

MDF and chipboard are porous: air flows in continuously through the material, and the vacuum under the panel remains weaker than with dense materials. Becker names too little vacuum with porous materials as a typical cause of shifting workpieces and lists its series as holding MDF, chipboard, plywood and solid wood even with high leakage.

A single pump or a central vacuum system?

Atlas Copco considers pumps directly at the machine sensible for smaller applications with a few CNC machines, and central systems often the better solution in larger production plants. Central vacuum systems are planned and built by Eugen Theis Vakuum, a company of the Ehrler & Beck group – more under Central Vacuum.

Does Ehrler & Beck also supply spare parts and service?

Yes. Ehrler & Beck offers original spare parts and accessories as well as maintenance and repair.

Which pump suits your clamping table?

Tell us the table size, the material and the number of machines – we advise you on selection, spare parts and service.

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