VMECA Smart Keyboard Pump is stackable vacuum generator. Each pump creates vacuum as an individual pump. The advantages of this unit is that it can be operated using just two control valve while retaining individual vacuum lines separate to one another, therefore if any leakage or surface deformation occurs and one pad loses it vacuum, it does not effect the vacuum level in the other pads. Pumps can be stacked up from 8 units depending upon requirements.
1. Basic Model
| Symbol | Description |
| SKC203 | Smart keyboard stackable vacuum pump, 3-stage, 2-vacuum cartridge |
2. Body Type
| Symbol | Description |
| S | Single unit |
| M | Manifold unit |
3. Number of Stacks
| Symbol | Description |
| 1 | Single unit vacuum pump |
| 2 | 2-stacked vacuum pumps |
| 3 | 3-stacked vacuum pumps |
| 4 | 4-stacked vacuum pumps |
| 5 | 5-stacked vacuum pumps |
| 6 | 6-stacked vacuum pumps |
| 7 | 7-stacked vacuum pumps |
| 8 | 8-stacked vacuum pumps |
4. Air Control Valve & Vacuum Switch
| Symbol | Description |
| A | N.C. air supply & vacuum release control valve |
5. Vacuum Switch
| Symbol | Description |
| Blank | No vacuum switch |
| C | Digital switch, No analog supply, M8-4-pin, NPN |
| PC | Digital switch, No analog supply, M8-4-pin, PNP |
| GA | Digital switch, Analog supply, 2 m lead wire, NPN |
| PGA | Digital switch, Analog supply, 2 m lead wire, PNP |
6. Non-Return Valve
| Symbol | Description |
| Blank | No non-return valve |
| N | Non-return valve |
7. Sealing Material
| Symbol | Description |
| Blank | NBR sealing material |
| V | Viton sealing material |
| E | EPDM sealing material |
1. General Specifications
| Max Vacuum Level | -90 kPa |
| Open Vacuum Flow | 171.6 Nl/min |
| Feed Pressure | 1.7 ~ 4 bar (Max 7 bar) |
| Air Consumption | 64 Nl/min |
| Temperature | -20 ~ 80 ℃ |
| Weight – Basic Pump | 456 g – Single Unit |
2. Vacuum Flow
☛ Click on the supply air pressure in the graph legend to show or hide the graph lines.
| Max Vacuum | Feed Pressure | Vacuum Flow (Nl/min) at different vacuum level (-kPa) | |||||||||
| -kPa | bar | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 |
| 90 | 3.14 | 171.2 | 73.8 | 52 | 31.6 | 22 | 17.8 | 13.2 | 7.8 | 4.0 | – |
| 85 | 4 | 171.6 | 85.4 | 62 | 46 | 28.2 | 15.2 | 12.8 | 7.8 | 2.6 | – |
| 60 | 2.2 | 134.4 | 59 | 34 | 23 | 16 | 10.4 | 2.8 | – | – | – |
| 50 | 1.7 | 50.8 | 25.6 | 16.6 | 8.0 | – | – | – | – | – | – |
3. Evacuation Time
☛ Click on the supply air pressure in the graph legend to show or hide the graph lines.
| Feed Pressure | Air Consumption | Evacuation time in sec per liter to reach different vacuum level (-kPa) | ||||||||
| bar | Nl/min | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 |
| 3.14 | 52 | 0.03 | 0.14 | 0.26 | 0.46 | 0.7 | 1.0 | 1.6 | 3.0 | – |
| 4 | 64 | 0.035 | 0.13 | 0.25 | 0.4 | 0.5 | 0.9 | 1.5 | 3.4 | – |
| 2.2 | 40 | 0.04 | 0.19 | 0.4 | 0.75 | 0.95 | 1.2 | – | – | – |
| 1.7 | 34 | 0.06 | 0.25 | 0.6 | 1.2 | – | – | – | – | – |
| SKC203-S1: Single unit |
| Unit: mm |
| No | Description |
| 1 | Air Supply Port, G1/8″ |
| 2 | Vacuum Release Flow Adjustor |
| 3 | Vacuum Port, G1/4″ |
| 4 | Vacuum Port, G1/8″ |
| 5 | Vacuum Switch Connector, M8X4-Pin |
| 6 | Vacuum Release Connector, M8X4-Pin |
Vacuum Pumps & Spare Parts
| Part Number | Description |
| SKC203-S1-A-C-V | Smart keyboard stackable pump, 3-stage, 2-cartridge, Air ctrl valve, NPN switch, Viton seal |
