Ortoalresa Digtor 22 High-Capacity Benchtop Centrifuge

Overview

The Ortoalresa Digtor 22 is a high-capacity, high-performance benchtop centrifuge engineered for demanding routine and research applications in life science, clinical diagnostics, and bioprocessing laboratories. Designed and manufactured in Spain with over three decades of centrifugation expertise, the Digtor 22 employs fixed-angle and swing-out rotor configurations to deliver precise, reproducible separation across a broad operational envelope — from microvolume tubes (0.2 mL) to large-volume bottles (750 mL). Its core architecture integrates a brushless induction motor, enabling maintenance-free operation, thermal stability under extended runs, and consistent torque delivery up to 14,300 rpm (21,948 × g). Unlike conventional benchtop units constrained by either speed or capacity, the Digtor 22 bridges this functional gap without compromising safety, traceability, or ergonomic usability — making it suitable for high-throughput sample preparation involving cell pellets, subcellular organelles, nucleic acids, and protein complexes.

Key Features

• Color TFT touchscreen interface (≥3 m visibility) displaying real-time RPM, RCF, elapsed/run time, acceleration/deceleration profiles (PCBS), and unbalance location (ULS)
• Programmable step resolution: 10 rpm / 10 × g increments for precise method replication
• 40 password-protected user memories supporting full parameter recall including rotor ID, speed, time, and ramp profiles
• Progressive Control Braking System (PCBS): 175 selectable acceleration/deceleration ramps to prevent post-centrifugation resuspension and ensure sediment integrity
• Unbalance Location System (ULS): Identifies and visually highlights the specific tube position causing imbalance, enabling rapid corrective action without rotor removal
• Automatic rotor recognition and validation at startup; compatible with >12 fixed-angle and swing-out rotors and 50+ tube adapters
• Brushless induction motor with forced-air cooling, delivering <60 dB(A) acoustic emission and minimal heat transfer to samples
• Motorized dual-lock lid system with emergency manual release, drop protection, and interlocked operation preventing run initiation with lid open
• Stainless-steel chamber (AISI 304), autoclavable rotors and adapters, and integrated safety ring between chamber and housing
• Programmable auto-lid opening, hold-at-end function, and last-used parameter retention

Sample Compatibility & Compliance

The Digtor 22 accommodates volumetric formats ranging from 0.2 mL PCR tubes to 750 mL disposable bottles via certified rotors and ISO-compliant adapters. Its mechanical design and firmware support GLP/GMP-aligned workflows: all user-defined methods are timestamped and stored with audit-trail metadata, and the system logs operational events (e.g., lid cycles, error codes, unbalance triggers) in non-volatile memory. It conforms to IEC/EN 61010-1 (safety requirements for electrical equipment) and EN 61010-2-020 (particular requirements for centrifuges), as well as electromagnetic compatibility standards EN 61326-1 and EN 61326-2-6. The device meets EU directives 2014/35/EU (Low Voltage Directive), 2014/30/EU (EMC Directive), and 98/79/EC (In Vitro Diagnostic Medical Devices Directive), ensuring suitability for CE-marked laboratory environments subject to regulatory oversight.

Software & Data Management

While the Digtor 22 operates autonomously via its embedded microprocessor and touchscreen interface, it supports external data exchange through standard RS-232 and USB ports. Users may export run logs—including start/stop timestamps, actual vs. set RCF, total runtime, and fault records—to CSV files for integration into LIMS or electronic lab notebooks. Parameter programming allows timer-based execution from 1 minute to 99 hours (±1 s accuracy), with configurable “hold at end” and automatic power-down after 8 hours of inactivity (user-disablable). All rotor-specific RCF values are dynamically calculated and displayed on-screen based on selected adapter configuration, eliminating manual conversion errors. No proprietary software installation is required; PC connectivity serves exclusively for log retrieval and firmware updates verified and signed by Ortoalresa.

Applications

The Digtor 22 is routinely deployed in applications requiring high-volume, high-g-force separation where reproducibility and operator safety are critical. These include: pelleting mammalian and bacterial cells at scale; clarifying fermentation broths and lysates prior to chromatography; isolating extracellular vesicles and lipoprotein fractions; preparing plasma and serum from whole blood in clinical labs; concentrating viral vectors and mRNA-LNPs in process development; and separating polymer precipitates in material science workflows. Its compatibility with sterilizable rotors and adapters enables use in ISO Class 5 cleanrooms and aseptic processing suites when validated per internal SOPs.

FAQ

Is the Digtor 22 compliant with FDA 21 CFR Part 11 for electronic records?
The Digtor 22 does not implement electronic signature or role-based access control required for full Part 11 compliance; however, its audit-trail-capable event logging and password-protected method storage support alignment with ALCOA+ principles when integrated into validated laboratory systems.
Can rotors be autoclaved?
Yes — all standard aluminum and titanium rotors, along with polypropylene and stainless-steel adapters, are rated for repeated autoclaving at 121°C, 1 bar for 20 minutes.
What is the maximum allowable imbalance tolerance?
The ULS detects imbalances ≥5 g difference between opposing positions and halts operation within ≤0.5 seconds, displaying the offending tube number on the touchscreen.
Does the centrifuge support variable-speed ramping during deceleration?
Yes — PCBS allows independent configuration of up to 175 distinct deceleration profiles, including “free spin-down,” to preserve delicate pellet integrity.
Is remote monitoring or network connectivity available?
No Ethernet or Wi-Fi interface is provided; communication is limited to RS-232 and USB for local data export only, preserving system integrity in regulated environments.