Busch COBRA Dry Screw Vacuum Pumps
The Busch COBRA Dry Screw Vacuum Pump Series (featured model: NC 0300 B) represents Busch's advanced non-contacting, oil-free vacuum technology designed specifically for demanding chemical processing, pharmaceutical synthesis, plastics degassing, solar cell coating, and industrial vacuum applications. Operating via two counter-rotating **variable pitch screw rotors**, COBRA pumps achieve exceptional internal compression efficiency while discharging gases completely free from oil or operating fluid contamination. Engineered with direct water cooling, uniform thermal distribution, and specialized corrosion-resistant coatings, these units deliver extreme vapor tolerance, low ultimate pressures down to **0.01 hPa (mbar)**, and long maintenance-free service intervals. Available across multiple modular models (NC 0100 B, NC 0200 B, NC 0300 B, NC 0630 C, and Industry/Chemical variants) covering capacities up to **2,000 m³/h**. WE DRIVE HONGKONG LIMITED provides technical sourcing, model cross-referencing, and global express supply for Busch COBRA dry screw vacuum pumps worldwide.
Technical Specifications
| Featured Model | COBRA NC 0300 B (Chemical/Industry Duty Dry Screw Vacuum Pump, 300 m³/h Nominal Pumping Speed, 0.01 hPa Ultimate Pressure) |
|---|---|
| Brand / Manufacturer | Busch Vacuum Solutions (German Precision Vacuum Engineering) |
| Product Series | COBRA NC Series & Industry/Chemical Standard Dry Screw Vacuum Pumps |
| Pumping Capacity Range | 100 m³/h to 2,000 m³/h (58 CFM to 1,177 CFM Nominal Displacement) |
| Ultimate Pressure Range | 0.01 hPa (mbar) to 1.0 hPa (Continuous Operation under Harsh Vapor Load) |
| Operating Principle | Contactless Oil-Free Twin Screw Technology with Variable Pitch Rotors |
| Cooling System & Noise Level | Direct Water-Cooled Chamber / Radiator Cooled; Low Noise Emission (<68 to <78 dB(A)) |
| Motor & Flange Interface | Standard Flange Motor Connection (IE3/IE4 Efficiency) with ISO / DN Vacuum Connections |
Documentation & Resources
Busch COBRA Model, Pumping Speed & Motor Power Matrix
Complete selection matrix for Busch COBRA dry screw vacuum pumps. Review model codes, nominal pumping speeds, ultimate pressure limits, motor power ratings, and standard applications:
| Busch COBRA Model | Pumping Speed (m³/h) | Ultimate Pressure | Motor Power (kW) | Cooling & Duty | Busch Model Code Example |
|---|---|---|---|---|---|
| COBRA NC 0100 B | 100 m³/h | 0.01 hPa (mbar) | 3.0 kW - 4.0 kW | Water / Chemical Duty | NC 0100 B001 XXXX |
| COBRA NC 0200 B | 200 m³/h | 0.01 hPa (mbar) | 5.5 kW - 7.5 kW | Water / Chemical Duty | NC 0200 B001 XXXX |
| COBRA NC 0300 B | 300 m³/h | 0.01 hPa (mbar) | 7.5 kW - 11.0 kW | Water / Process Duty | NC 0300 B001 XXXX |
| COBRA NC 0630 C | 630 m³/h | 0.01 hPa (mbar) | 15.0 kW - 18.5 kW | Water / Heavy Duty | NC 0630 C001 XXXX |
| COBRA NC 1000 / 2000 | 1,000 - 2,000 m³/h | 0.05 hPa (mbar) | 22.0 kW - 45.0 kW | Water / Large System | NC 1000 B001 XXXX |
Conventional Vacuum Pump to Busch COBRA Dry Screw Upgrade Guide
Direct replacement guide for upgrading conventional oil-sealed or water-ring vacuum pumps to clean, oil-free Busch COBRA dry screw units:
| Conventional Vacuum Technology | Process & Operational Limitations | Current Busch COBRA Equivalent | Key Performance & Efficiency Advantages |
|---|---|---|---|
| Oil-Sealed Rotary Vane Pump in Chemical Line | Solvent vapors degrade oil, causing frequent oil changes and smoke emissions | Busch COBRA NC 0200 B / NC 0300 B 100% Oil-Free Path | Non-contacting dry screw rotors eliminate oil contamination, waste fluid disposal, and filter costs. |
| High-Maintenance Liquid Ring Pump | High water consumption, scale buildup on impellers, and wastewater treatment costs | Busch COBRA NC 0300 B / NC 0630 C Energy & Water Savings | Eliminates continuous liquid seal supply requirements, saving up to 70% in operating costs. |
| Standard Constant-Pitch Dry Screw Pump | High power draw and thermal buildup at ultimate pressure | Busch COBRA NC Series (Variable Pitch) Variable Pitch Efficiency | Patented variable pitch rotors compress gas evenly, lowering exhaust gas temperature and power consumption. |
Expert Technical Sourcing & Industrial Process Integration Notes
When retrofitting chemical processing plants or replacing high-maintenance liquid ring systems, switching to Busch COBRA dry screw vacuum pumps delivers immediate operational benefits: absolute freedom from oil contamination, high vapor and particle tolerance, dynamic power savings through variable pitch rotor geometry, low operating noise, and direct ISO/DN flange mounting. Simply provide us with your complete pump part number or process vacuum requirements, and our technical engineering team will deliver a 100% compliant replacement specification and quotation.
Core Benchmark Model Standard Configurations
- NC 0100 B (100 m³/h Dry Screw)
- NC 0200 B (200 m³/h Dry Screw)
- NC 0300 B (300 m³/h Dry Screw)
- NC 0630 C (630 m³/h Dry Screw)
- NC 1000 B (1,000 m³/h Dry Screw)
- COBRA Chemical Duty Vacuum Pump
- COBRA Industry Duty Dry Screw
- Busch Dry Screw Vacuum Pump
- Busch Oil-Free Chemical Reducer
- Busch Variable Pitch Screw Pump
- Busch Solvent Recovery Vacuum System
- Busch Pharmaceutical Dry Vacuum
- Busch Plastics Degassing Vacuum
- Busch Solar Coating Vacuum Pump
- Busch Water-Cooled Dry Screw Pump
- Busch ATEX Explosive Gas Vacuum
- Busch Low Noise Screw Reducer
- Busch Vacuum Booster Package
- Busch Industrial Vacuum Sourcing
- Busch Vacuum Solutions Supplier
