| Speed and force | HC-16A, HC-16C, HC-16L: 16,000 rpm, 17,000 × g; HC-20L: 20,000 rpm, 26,500 × g; HC-20C: 20,000 rpm, 27,800 × g | Check the g-force your kit or protocol specifies; most spin-column and tube protocols fit the 16,000 rpm models. |
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| Rotor options | Standard rotor on all: 12 × 1.5/2 mL. HC-16L extra rotors: 6 × 5 mL, 12 × 0.5 mL, 8 × 5 mL, 24 × 1.5/2 mL; HC-16C: mixed 1.5/2 mL + 5 mL, 1.5 mL + 0.5 mL, 8 × 5 mL, 24 × 1.5/2 mL; HC-20L: 6 × 5 mL, 12 × 0.5 mL; HC-16A and HC-20C: eight rotors up to 24 × 1.5/2 mL, 12 × 10 mL, 6 × 50 mL, 48 × 0.5 mL, 36 × 1.5 mL and 4 × 100 mL | List the tube sizes you need; extra rotors are optional and should be itemised in the quotation. |
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| Display and control | HC-16L, HC-20L: touch panel, LCD speed, RCF and time; HC-16C: microprocessor control, LED speed and time; HC-16A, HC-20C: touch panel, LED speed, RCF and time, LCD optional | Choose a model that sets by RCF as well as rpm if your protocols are written in × g. |
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| Safety features | All: over-speed and imbalance alarm, error code display; HC-16L, HC-20L: automatic stop when the lid opens; HC-16C: mechanical door lock and safety switch; HC-16A, HC-20C: electromagnetic door lock and rotor identification | Rotor identification matters if staff swap several rotors on the larger models. |
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| Body, size and weight | HC-16L, HC-20L: plastic case with metal lid, 320 × 340 × 280 mm, 9 kg; HC-16C: 280 × 310 × 265 mm, 10 kg; HC-16A, HC-20C: metal case, stainless steel chamber, 410 × 520 × 320 mm, 27 kg | Check bench depth and load for the 27 kg models. |
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| Power and timer | 110 V 60 Hz or 220 V 50 Hz; timer 0–99 min (all models) | State your mains voltage and frequency when ordering. |
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