LAUDA Varioshake VS 8 O Orbital Shaker

Overview

The LAUDA Varioshake VS 8 O Orbital Shaker is a precision-engineered laboratory shaker designed for consistent, low-maintenance orbital motion in life science and bioengineering applications. It operates on the principle of circular orbital shaking—generating uniform, gentle agitation ideal for cell culture, microbial growth, solubilization, and sample homogenization without shear-induced damage. Its robust mechanical architecture features a balanced drive system with an anodized aluminum platform and mass-compensated motor assembly, ensuring constant speed performance across variable load conditions (up to 8 kg). Engineered for long-term reliability, the unit integrates overload-protected AC motor technology, electrolytically galvanized steel housing with powder-coated finish, and a compact footprint (350 × 355 × 160 mm) suitable for benchtop integration in biosafety cabinets or temperature-controlled environments.

Key Features

• Orbital motion with precise 10 mm amplitude—optimized for suspension cultures, enzymatic reactions, and reagent mixing
• Digital LC display interface showing both setpoint and real-time oscillation frequency (20–500 rpm), adjustable in 1.0 rpm increments
• Programmable timer with resolution from 1 minute to 99 hours 59 minutes; continuous operation mode available
• Microprocessor-based control system with soft-start functionality to minimize mechanical stress during startup
• Anodized aluminum platform with four integrated plastic locating pins for secure accessory mounting
• Low-noise, heavy-duty drive mechanism with dynamic mass balancing—ensuring vibration-free operation at all frequencies
• Stable speed regulation independent of payload weight, validated under GLP-relevant operational conditions
• Optional RS232 interface for external data logging or integration into automated lab workflows (available upon request)

Sample Compatibility & Compliance

The VS 8 O accommodates standard laboratory vessels including Erlenmeyer flasks (up to 2 L), Petri dishes, multi-well plates, and centrifuge tubes via interchangeable accessories. Its 330 × 330 mm platform supports universal trays (A000048), anti-slip carriers (A000042), oscillating platforms (A000047), and customizable silicone adhesive pads (A000041, 200 × 200 mm, cut-to-size). The instrument complies with IEC 61010-1 for electrical safety and meets EN 61326-1 requirements for electromagnetic compatibility (EMC). While not intrinsically rated for hazardous locations, it is routinely deployed in ISO Class 5–7 cleanrooms and certified GMP/QC laboratories when operated within ambient temperature limits (10–50 °C) and humidity ≤80% RH non-condensing.

Software & Data Management

The VS 8 O operates as a standalone instrument with no embedded software stack; however, its optional RS232 port enables connection to third-party data acquisition systems compliant with ASTM E2500 and FDA 21 CFR Part 11 guidelines. When interfaced with validated laboratory information management systems (LIMS), the shaker supports audit-trail-capable parameter logging—including timestamped start/stop events, frequency settings, and runtime duration. All user inputs are stored in non-volatile memory and retained during power cycling. Firmware updates are not field-upgradable; calibration and configuration remain hardware-defined per factory specification to ensure traceability and regulatory consistency.

Applications

• Bacterial and yeast cultivation in liquid media under aerobic or semi-aerobic conditions
• Protein solubilization and buffer equilibration prior to chromatography or electrophoresis
• Solvent extraction protocols requiring phase separation without emulsification
• Prevention of particle sedimentation in colloidal suspensions and nanoparticle dispersions
• Sample preparation for HPLC, GC-MS, and ELISA workflows where homogeneity is critical
• Incubator-integrated shaking: compatible with LAUDA refrigerated incubators (e.g., IC Series) for simultaneous temperature control and agitation
• Quality control testing in pharmaceutical manufacturing per USP and endotoxin assay support protocols

FAQ

Is the VS 8 O suitable for use inside a CO₂ incubator?
Yes—when equipped with optional high-temperature-rated cabling and mounted on a stable internal shelf, the unit functions reliably at 37 °C and 5% CO₂, provided ambient humidity remains below 80% RH.
Does the shaker maintain constant speed under varying load conditions?
Yes—the brushless AC motor and feedback-controlled drive circuitry ensure ±1 rpm stability across the full 0–8 kg load range, verified per ISO 17025-accredited test reports.
Can multiple accessories be mounted simultaneously on the platform?
No—the single-platform design supports only one accessory type at a time; however, quick-release mounting pins allow tool-free swapping between trays, clamps, or adhesive pads.
What is the recommended maintenance schedule?
No scheduled lubrication or calibration is required. Routine cleaning of the platform and inspection of mounting pins every 6 months is advised per LAUDA Technical Bulletin TB-VS-01.
Is the device compatible with 115 V / 60 Hz power supplies?
No—the VS 8 O is configured exclusively for 230 V, 50/60 Hz input; voltage conversion requires an externally certified isolation transformer meeting IEC 61558 standards.