COBRA NC 0200 BPumping speed 220 m³/hUltimate pressure 0.05 mbarCOBRA NC 0400 B ECOTORQUE
The Busch COBRA NC 0400 B ECOTORQUE is a dry screw vacuum pump with a nominal pumping speed of 420 m³/h and an ultimate pressure of 0.05 mbar. Ehrler & Beck advises on selection and service.
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- Pumping speed 420 m³/h 50 Hz 420 m³/h 60 Hz
- Ultimate pressure 0.05 mbar
- Rated motor power 9.5 kW 50 Hz 9.5 kW 60 Hz
Busch COBRA NC 0400 B ECOTORQUE – dry screw vacuum pump
The Busch COBRA NC 0400 B ECOTORQUE is a dry screw vacuum pump. The nominal pumping speed is 420 m³/h, the ultimate pressure 0.05 mbar. Nominal motor rating 9.5 kW.Features
- Efficient: high energy savings through frequency converter (ECOTORQUE), Ecomode with automatic start-stop, lower maintenance costs, long maintenance intervals, efficient cooling
- Flexible: vacuum level (pressure control) and pumping speed (speed control) can be set to suit the process, wide supply voltage range, up to eight pumps can be controlled with the optional ECOTORQUE Master Control
- Powerful: screw design with patented self-balancing screws, short pump-down times, for heat treatment, coating, vacuum drying and CO₂ capture
Typical applications
Busch lists: Automotive and transport (vacuum die casting, space research); Batteries (degassing, mixing, impregnation and others); Carbon capture (direct air capture); Plastics processing (extruder and melt degassing, drying, degassing, dissolution); R&D (central vacuum systems, space research, plasma physics); Refrigeration and air conditioning (vacuum die casting).Accessories and versions
- Purge gas system
- Barrier gas connection
- Dilution gas connection
- ISO or ASME flange connection adapter
- Non-return valve
- Exhaust silencer
- Air cooling
- Various seal and coating configurations
Advice and service
Ehrler & Beck advises on selection, accessories and service.| Pumping speed 50Hz | 420 |
|---|---|
| Pumping speed 60Hz | 420 |
| Ultimate pressure | 0.05 |
| Rated motor power 50Hz | 9.5 |
| Rated motor power 60Hz | 9.5 |
| Weight | 500 |
| Length | 145.2 |
| Width | 53.9 |
| Height | 84.9 |
| Inlet connection flange | DN 80 PN 6 |
| Outlet connection flange | DN 63 ISO–K |
| Noise level | 66 dB(A) |
| Oil type | Oil-free |
Additional technical data
| Technical data | Value |
|---|---|
| Nominal pumping speed | 420 m³/h |
| Ultimate pressure | ≤ 0.05 mbar (50 Hz) / ≤ 0.01 mbar (60 Hz) |
| Rated motor power | 9.5 kW |
| Nominal speed | 3600 min⁻¹ |
| Sound pressure level (ISO 2151, KpA = 3 dB) | 66 dB(A) (50 Hz) / 69 dB(A) (60 Hz) |
| Dimensions (L × W × H) | 1452 × 539 × 849 mm |
| Weight (approx.) | 500 kg |
| Gas inlet | DN 80 PN 6 |
| Gas outlet | DN 63 ISO–K |
| Product name | Part number |
|---|---|
| Temperature switch for oil (standard) | 0651 556 533 |
| Gas ballast filter (for the optional gas ballast valve) | 0562 550 434 |
| Cooling liquid CLA 25 (ready to use), 5 l pack | 2000 241 757 |
| Cooling liquid CLA 25 (ready to use), 20 l pack | 2000 241 738 |
| Busch oil VSC 100 (ISO VG 100, synthetic), 1 l pack | 0831 168 356 |
| Busch oil VSC 100 (ISO VG 100, synthetic), 5 l pack | 0831 168 357 |
| Busch oil VSC 100 (ISO VG 100, synthetic), 20 l pack | 0831 168 359 |
| Product name | Part number |
|---|---|
| Solenoid valve for gas ballast/dilution gas (optional) | 0654 000 092 |
| Level switch for flushing liquid (optional, liquid flushing device) | 0652 556 531 |
| Inlet filter (paper or polyester cartridge) | on request |
| Gas ballast valve | on request |
| Silencer | on request |
| Barrier gas system | on request |
| Mechanical seals (optional motor-side sealing system) | on request |
| Gearbox pressure relief valve (with the mechanical seal sealing system) | on request |
| Nitrogen panel | on request |
| Liquid flushing device | on request |














