Beckman Coulter - J21 C
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The Beckman J-21C is a refrigerated, general-purpose laboratory centrifuge designed for fast, efficient separation of large volumes.
The J-21 C has been designed for the greatest possible simplicity of operation and maintenance. For repairs which cannot be done by the owner, components can be easily removed for repair or exchange. The result is a tough, reliable, easy-to-care for centrifuge which can be quickly mastered by the laboratory technician.
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Features of J21 C
- Solid-state circuitry * Long drive and brush life * Broad temperature range * Overspeed protection * Speed and temperature control * Automatic holding temperature * Sealed lubrication * Stainless steel chamber * Modular design for fast repair * Automatic vacuum system * Convenient speed calibration check * Stainless work surface * Wide choice of rotors, tubes, adapters * Simple, quiet operation * Easy upkeep
General Specifications
| Speed Range | 750 to 21000 rpm |
| Centrifuge Type | High Speed |
| Maximum Speed | 21000 rpm |
| Refrigerated | Yes_ |
Additional Specifications
Speed Control:
Actual speed within 200 rpm when speed is between 1000 and 15,000 rpm; actual speed within 300 rpm when speed is between 15,000 and 21,000 rpm
Temperature Range:
From 2° to 30°C with maximum load and speed
Temperature Control:
After calibration, rotor temperature ± 1°C of set temperature
Vacuum Pressure:
15 inches Hg (1/2 atmosphere)
Brake System:
Choice of dynamic braking or coasting
Tachometer:
Indicates actual speed within 300 rpm
Safety Features:
Protection against chamber overheating
Door locking system
Heavy steel chamber
Sealed lubrication
Rotor overspeed protection