Hermle Z446 Universal High Capacity Centrifuge

SKU: Z446

Sale price$7,277.78 Regular price$8,000.00
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The Z446 series of universal centrifuges by Hermle-Benchmark is the ultimate benchtop model with the highest capacity available. It features a durable premium alloy construction commonly used in aircraft. The 4 x 750ml swing-out rotor can handle centrifugal forces of up to 4,500 xg, accommodating loads of up to 28 x 50ml tubes, 68 x 15ml tubes, or 20 x microplates.

With advanced microprocessor controls, this centrifuge instantly recognizes the rotor and adjusts the rotational speed to the appropriate g-force (rcf), preventing users from exceeding the rotor's capabilities. The user-friendly front panel allows easy access to saved programs and enables adjustments to acceleration, deceleration rates, and the end-of-run alarm tone. Swapping rotors is quick, taking less than a minute, and an included rotor wrench facilitates easy installation. Upon placing a rotor on the motor shaft, the identification process activates, displaying the corresponding rotor code on the backlit LCD screen.

Please note: One rotor is required for Z446 Series Centrifuges. Please select a rotor found in the accessories tab.

Key Details

  • Maintenance-free induction drive
  • Microprocessor with a large LCD display
  • Motor-driven lid lock
  • Automatic radio-frequency rotor identification system (RFID) with over speed protection, activated immediately upon rotor insertion
  • Audible signal at the end of each run with multiple melody options
  • Noise level below 65 dBA (depending on the rotor)
  • Manufactured in compliance with international safety regulations
  • Stainless steel chamber

 Z446-K Features

  • Temperature range: -20°C to 40°C
  • CFC-free refrigeration system
  • Preselection of temperature with 1°C increments
  • Indication of sample temperature
  • Pre-cooling program option

Distinct Control Panel

  • Simple one-handed operation
  • Easy programming even while wearing gloves
  • Foil keyboard for easy input
  • Permanent indication of preset and actual values
  • Speed selection in both rpm and g-force, with increments of 10
  • Ten acceleration and deceleration rates
  • Pre-selection of running time from 10 seconds to 99 hours 59 minutes or continuous operation
  • Quick-key for short runs
  • Storage capacity for up to 99 runs, including rotor information
  • Timer function: the centrifuge starts at the preselected time


  • Dimensions Z446 and Z446-E: 21.3 x 26.4 x 15.4 in.
  • Dimensions Z446-K and Z446-K-E: 28.7 x 26.4 x 15.4 in.
  • Speed: 200 to 16,000rpm
  • Power Requirement Z446 and Z446-K: 115V
  • Power Requirement Z446-E and Z446-K-E : 230V

Additional Information

User Warranty: Five Years
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