Flask Shaker | High-Capacity Erlenmeyer Flask Shaker 30-300rpm

Hawach flask shakers are high-capacity orbital flask shakers designed for microbial culture, fermentation studies, and seed culture preparation. Compared with conventional benchtop orbital shakers, they offer significantly higher throughput and load capacity.

What Is a Flask Shaker?

Flask shakers (also known as Erlenmeyer flask shakers, laboratory culture shaking systems, or high-capacity orbital shakers) are purpose-built orbital shaking platforms specifically designed for high-volume microbial culture, fermentation, and biotechnology applications. Unlike general-purpose orbital shakers, flask shakers are engineered with larger tray sizes, higher load capacities, and robust drive systems to accommodate the demanding requirements of industrial-scale flask culture.

Hawach flask shakers feature a three-eccentric shaft balanced drive system that ensures uniform oscillation across the entire platform, even under full load. The sturdy construction delivers strong, consistent power regardless of the number or size of flasks being shaken. Available in single-layer and double-layer configurations, these systems maximise throughput while maintaining exceptional shaking stability and reliable long-term performance.

Flask Shakers in Microbiology and Fermentation Research

In microbiology laboratories, flask shakers are often used for shake flask culture, seed culture preparation, fermentation screening, and strain development studies. Researchers may also refer to these systems as shake flask shakers, Erlenmeyer flask shakers, or fermentation shakers depending on the application.

Flask Shaker vs Orbital Shaker – Which One Do You Need?

Choose a flask shaker if you routinely culture large numbers of flasks, require high throughput, or are scaling up fermentation processes. Choose a general orbital shaker for smaller-scale mixing, microplate work, or occasional flask culture.

How Orbit Diameter Affects Oxygen Transfer in Shake Flask Culture?

The 26mm orbit (shaking diameter) is specifically chosen for microbial culture applications. This amplitude provides the optimal balance between oxygen transfer efficiency and shear force on cells.

• Efficient oxygen transfer– the 26mm orbit creates sufficient surface agitation to promote gas exchange without generating excessive foam or shear stress
• Uniform mixing– consistent circular motion ensures homogeneous distribution of nutrients and metabolic products
• Cell-friendly agitation– the 26mm amplitude provides vigorous mixing while maintaining low shear, protecting delicate cells
• Industry standard– 26mm orbit is the most commonly used amplitude for shake flask culture and fermentation studies

The combination of 26mm orbit and 30-300rpm speed range allows users to fine-tune agitation intensity for different microbial species, media viscosities, and culture volumes.

How to Choose the Right Flask Shaker?

Up to 30 × 500mL Flasks

Single-layer, 800×600mm tray, 250W motor. Ideal for routine lab culture and small-scale experiments.

Recommended: 18011024

Up to 60 × 500mL Flasks

Double-layer, 800×600mm tray, 400W motor. Doubles throughput in the same footprint.

Recommended: 18011025

Up to 35 × 1000mL Flasks

Single-layer, 920×640mm tray, 250W motor. Supports larger culture volumes for scale-up studies.

Recommended: 18011026

Up to 70 × 1000mL Flasks

Double-layer, 920×640mm tray, 400W motor. Maximum throughput for high-volume fermentation.

Recommended: 18011027

Maximum Flask Capacity by Size

Double-layer models support the same capacity per layer, effectively doubling total throughput. Standard configurations: 500mL×30 (800×600mm) and 1000mL×35 (920×640mm).

Applications

Microbiology

Bacterial culture (E. coli, Bacillus, Pseudomonas, Agrobacterium), yeast propagation, fungal culture.

Molecular Biology

Plasmid preparation, protein expression screening, nucleic acid extraction, recombinant DNA research.

Synthetic Biology

Strain engineering, metabolic pathway optimisation, gene circuit characterisation.

Industrial Fermentation

Shake flask fermentation, media optimisation, scale-up studies, seed culture preparation.

Food & Beverage Research

Lactic acid bacteria culture, yeast propagation for brewing and baking, starter culture development.

Biopharmaceutical Development

API production, formulation development, QC testing, microbial limit assays.

Available Platform and Holder Options

Spring Rack (Standard)

Universal spring clamp system accommodates multiple flask sizes simultaneously. Quick and easy insertion and removal.

Flask Clamp Holder

Dedicated holders for specific flask sizes (250mL, 500mL, 1000mL, 2000mL). Provides maximum stability during high-speed shaking.

Adjustable Clamp System

Flexible system accommodating mixed flask sizes on the same tray. Easy reconfiguration for different experiments.

304 Stainless Steel Platform

Corrosion-resistant vibration table for demanding applications. Durable, easy to clean, and suitable for sterile environments.

All holder options are interchangeable with the standard tray system. Contact us for custom configurations.

Key Features

Balanced Eccentric Drive System

Three-eccentric shaft balanced drive delivers uniform oscillation, stable operation, and strong power output even under full load.

Programmable Speed Control

Speed range 30-300 rpm, ±1 rpm accuracy. Multi-frequency programming with simultaneous display of preset and running values.

Safety Monitoring System

Speed monitoring circuit terminates operation during abnormal speeds. Overload protection and automatic alert system.

Power Failure Memory Function

Saves user-set parameters during power outages. Auto-restart resumes operation with previous settings when power is restored.

Large LCD Display

Menu-style interface displays preset and running values simultaneously. Easy to read and programme.

Optional 304 Stainless Steel Platform

Corrosion-resistant vibration table for demanding applications. Durable and easy to clean.

Product Models – Complete Specifications

Flask configurations may vary depending on fixture selection. Double-layer models have two platforms, effectively doubling throughput within the same footprint.

Technical Specifications

Why Choose Hawach Flask Shakers

• Three-eccentric shaft balanced drive– ensures uniform oscillation across the entire platform
• Brushless DC motor– maintenance-free, low-heat operation for continuous use
• Double-layer configuration– doubles throughput in the same footprint
• Flexible capacity options– supports 250mL-2000mL flasks with interchangeable holders
• Factory direct pricing– competitive pricing with bulk order support

Frequently Asked Questions

Ordering Information

Optional accessories: 304 stainless steel vibration table, specialised flask holders (250mL, 500mL, 1000mL, 2000mL), adjustable clamp systems.