Homogenizer
Variable-speed homogenizer (7,000-30,000 rpm) for mechanical tissue disruption and sample preparation, processing volumes from 0.2 ml to 40 liters with interchangeable work heads.
Louise Corscadden, PhD
Neuroscience · ConductScience
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The ConductScience Homogenizer is a high-performance benchtop instrument designed for mechanical tissue disruption and sample preparation across multiple research applications. Operating at variable speeds from 7,000 to 30,000 rpm, this system provides controlled homogenization for sample volumes ranging from 0.2 ml to 40 liters using interchangeable work heads optimized for different processing volumes.
The instrument features a robust 1,300W motor housed in a compact benchtop design (320×210×680 mm), making it suitable for routine laboratory use in cell biology, biochemistry, and analytical sample preparation. The included work stand and standard 30G work head provide immediate operational capability, while optional work heads (6G through 25G) accommodate diverse sample types and volumes from small-scale protein extraction to large-volume tissue processing.
How It Works
The homogenizer operates through high-speed mechanical shearing using a rotating work head that creates intense hydrodynamic forces within the sample. The motor-driven shaft rotates the work head at precisely controlled speeds between 7,000 and 30,000 rpm, generating localized turbulence and cavitation that mechanically disrupts cellular structures and tissue matrices.
The interchangeable work head system allows optimization of shearing forces for different sample types and volumes. Smaller work heads (6G, 8G) provide intense localized shearing for small volumes, while larger heads (20F, 25G) process higher volumes with proportionally scaled mixing action. The variable speed control enables gentle mixing for fragile samples or aggressive disruption for tough tissues.
Sample processing occurs through a combination of mechanical shearing, impact forces, and turbulent flow patterns created by the rotating work head geometry. This mechanical action breaks cell walls, disrupts protein complexes, and creates uniform particle size distributions essential for downstream analytical procedures.
Features & Benefits
Weight
- 9.5 kg
Dimensions
- L: 68.0 mm
- W: 32.0 mm
- H: 21.0 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Speed Range | 7,000-30,000 rpm variable control | Many entry-level models offer fixed speeds or limited ranges of 5,000-15,000 rpm | Wide speed range allows optimization for different sample types without changing equipment. |
| Volume Capacity | 0.2 ml to 40,000 ml processing range | Most units handle either small volumes (microliters) or large volumes (liters) but not both | Single instrument serves diverse laboratory needs from analytical extractions to bulk preparations. |
| Work Head System | Seven interchangeable work heads (6G through 25G) | Basic models typically include 2-3 work heads with limited volume optimization | Comprehensive work head selection ensures optimal shearing geometry for specific applications. |
| Motor Power | 1,300W high-torque motor | Standard laboratory homogenizers often use 500-800W motors | Higher power maintains consistent speed under load when processing viscous or tough samples. |
| Benchtop Design | Compact 320×210×680 mm footprint with integrated work stand | Handheld models lack stability while larger units require dedicated bench space | Optimal balance of stability and space efficiency for routine laboratory use. |
This homogenizer offers exceptional versatility through its wide speed range, comprehensive work head selection, and broad volume capacity. The high-power motor and stable benchtop design make it suitable for both routine sample preparation and demanding research applications requiring consistent mechanical disruption.
Practical Tips
Verify speed accuracy monthly using a digital tachometer, especially for quantitative applications requiring precise shearing forces.
Why: Speed variations affect reproducibility and can compromise experimental results in dose-response or kinetic studies.
Disassemble and clean work heads thoroughly after processing samples containing proteins or nucleic acids to prevent enzymatic degradation of future samples.
Why: Residual biological material can introduce contaminating enzyme activity that affects downstream assays.
Start homogenization at lower speeds and gradually increase to prevent sample splashing and optimize disruption efficiency.
Why: Gradual speed increase allows proper vortex formation and prevents sample loss from excessive turbulence.
Always ensure work head is properly tightened and sample volume matches the work head specification before starting.
Why: Loose work heads can detach during operation, while incorrect volumes reduce efficiency and may cause mechanical stress.
Document speed, time, and work head type for each sample to enable protocol standardization and troubleshooting.
Why: Consistent documentation enables method validation and helps identify sources of variability in sample preparation.
If homogenization appears incomplete, check work head wear and consider switching to a smaller work head for increased shearing intensity.
Why: Worn work heads reduce shearing efficiency, while oversized work heads may not generate sufficient turbulence for complete disruption.
Pre-chill samples and work heads when processing temperature-sensitive materials like enzymes or volatile compounds.
Why: Mechanical homogenization generates heat that can denature proteins or cause volatile loss, affecting analytical results.
Setup Guide
What’s in the Box
- Main homogenizer unit
- Work stand
- Standard 30G work head
- Power cord
- User manual and operation guide
- Safety instructions (typical)
- Work head installation tools (typical)
Warranty
ConductScience provides a comprehensive 1-year manufacturer warranty covering parts and labor, with technical support available for troubleshooting and method development assistance.
Compliance
References
Background reading relevant to this product:
What factors determine the appropriate work head selection for my samples?
Work head selection depends on sample volume and desired shearing intensity. Use 6G-8G for small volumes requiring aggressive disruption, 10G-18G for moderate volumes, and 20F-25G for larger preparations. Match the work head volume range to your typical sample size for optimal performance.
How do I prevent sample heating during extended homogenization?
Use intermittent processing with cooling intervals, process samples on ice, or reduce speed and increase time. Monitor temperature with a probe thermometer and limit continuous operation to prevent protein denaturation or volatile loss.
Can this homogenizer handle fibrous tissues and tough biological matrices?
Yes, the 1,300W motor provides sufficient torque for most biological tissues. Pre-cut samples into smaller pieces, use appropriate work head size, and start at lower speeds to prevent motor overload with particularly tough matrices.
What maintenance is required for optimal performance?
Clean work heads thoroughly between samples to prevent cross-contamination, inspect shaft connections regularly for wear, and lubricate motor bearings according to the maintenance schedule. Replace work heads when wear affects homogenization efficiency.
How reproducible are the homogenization results between samples?
Reproducibility depends on consistent speed, time, sample volume, and work head selection. Document these parameters for each protocol and use the same operator technique to minimize variation in shearing forces and processing efficiency.
What safety precautions are necessary during operation?
Always secure the work head properly before operation, use appropriate personal protective equipment, and ensure samples are in suitable containers that won't break under mechanical stress. Never operate with loose clothing near rotating components.
How does this compare to bead-based homogenization methods?
Mechanical homogenization provides faster processing and handles larger volumes but may generate more heat. Bead-based methods offer better temperature control and are gentler for some applications, but require longer processing times and consumable beads.
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