Orbital Shakers Explained: Types, Key Features & Laboratory Applications
December 16, 2025
Blog
Introduction
Orbital shakers are essential instruments in today’s laboratories. They provide controlled, uniform mixing for biological, chemical and analytical processes.
With extensive experience in laboratory equipment, häberle LABORTECHNIK supports research institutions, industrial labs and clinical facilities with a wide selection of high-quality orbital shakers designed for robust and reproducible workflows.
What are Orbital Shakers?
Orbital shakers create a gentle, circular motion that mixes liquids and suspensions evenly without generating high shear forces.
How they work
- A motor drives a platform in a horizontal orbital pattern.
- Sample vessels move synchronously with the platform.
- This controlled motion ensures homogeneous mixing while protecting delicate cells and biomolecules.
Modern shakers offer adjustable speed, orbital diameter and timing, providing flexibility for many laboratory applications.
Main Types of Orbital Shakers
1. Standard Benchtop Orbital Shakers
Common in routine labs.
Typical specs:
- 50–300 rpm
- platform sizes from approx. 0.75 to 2.2 ft²
- load capacity 3–30 kg
Used for buffer preparation, sample mixing and general laboratory workflows.
2. Incubated Orbital Shakers
- For temperature-dependent applications such as cell cultivation.
- Temperature range: +15 °C to +65 °C, some models up to 70 °C.
3. Microplate Shakers
Designed for small vessels, PCR plates and microtiter plates.
Characteristics:
- small orbital motion (~3 mm)
- speeds of 100–1500 rpm
- ideal for high-throughput assays and screening workflows
4. Refrigerated / Incubating Shakers
- Combine cooling and heating capabilities.
- Suitable for enzymes, proteins or other temperature-sensitive samples.
5. CO₂-Resistant Orbital Shakers
For use inside CO₂ incubators.
Features:
- corrosion-resistant materials
- stable long-term performance in humid, CO₂-rich environments
Key Features and Specifications
Speed Range
Typically 10–500 rpm.
- low speeds for gentle mixing
- higher speeds for vigorous agitation
Platform Size and Capacity
Varies between:
- 20 × 20 cm (compact)
- 60 × 40 cm (large)
Timer Functions
Continuous operation or programmable intervals from 1 minute to 999 hours.
Digital Control
- precise rpm regulation
- timer settings
- error indicators
- multiple operating modes
Applications of Orbital Shakers
Cell Culture
Ensures uniform nutrient distribution and oxygenation.
Biochemistry
Used for enzyme reactions, buffer preparation and mixing molecular samples.
Microbiology
Supports cultivation of bacteria, yeast and fungi.
Research & Development
For screening assays, homogenization and method optimization.
Food & Beverage Testing
Used in quality control and stability assessments.
Environmental Analysis
For preparing soil, water and air samples prior to testing.
Advantages of Orbital Shakers
Gentle yet effective mixing
Circular motion minimizes shear stress on delicate biological samples.
Consistent, reproducible results
Soft-start mechanisms prevent splashing and ensure stable motion profiles.
Versatility
Compatible with flasks, culture vessels, microplates and reaction tubes.
Energy-efficient performance
Modern motors deliver strong mixing with reduced energy consumption.
Selection Criteria
Capacity Requirements
Determined by typical flask sizes and the number of samples.
Speed Range
Different assays and cultures require specific rpm ranges.
Environmental Conditions
Temperature, CO₂ and humidity influence the ideal device type.
Budget & Maintenance
Reliable service availability and durable parts reduce long-term costs.
Thermo Elect.LED GmbH (Kendro) Orbital Shakers at häberle LABORTECHNIK
Available product lines include:
- MaxQ series for demanding laboratory applications
- compact benchtop models for routine work
- CO₂-resistant units for incubator use
- temperature-controlled incubating shakers
häberle LABORTECHNIK provides professional guidance, installation support and technical service to ensure optimal performance throughout the device lifecycle.
Conclusion
Orbital shakers are essential tools for consistent, efficient mixing in modern science. They enhance workflow accuracy, protect sensitive samples and support a wide range of research and industrial processes.
With high-performance instruments from Thermo Elect.LED GmbH (Kendro) and expert support from häberle LABORTECHNIK, laboratories can confidently select the right shaker for their applications.
FAQ
1. What speed should I use for my application?
Cell cultures typically require 50–200 rpm, while biochemical reactions often use 200–400 rpm.
2. How often should an orbital shaker be serviced?
Every 6–12 months, depending on usage. Regular cleaning improves lifespan.
3. Can different vessel types be used simultaneously?
Yes, as long as the load is evenly distributed and proper clamps are used.
4. Difference between continuous and timed operation?
Continuous → ideal for long-term cultures
Timed → useful for standardized protocols
5. What safety features are important?
Imbalance detection, overheating protection, automatic shutdown and soft-start functionality.