Double-Tier Tube Rocker with Dual 9.9" x 6.7" Platforms, Sold Each
The Globe Scientific Double-Tier Tube Rocker delivers consistent, gentle rocking motion across two stacked platforms, doubling sample capacity without enlarging your benchtop footprint. Designed for blood tube mixing, immunoassay incubation, and gentle resuspension of cell suspensions, this fixed-speed unit suits hematology benches, research labs, and clinical sample-prep stations.
Technical Specifications
| Product Type | Tube rocker, double tier |
| Platform Size | 9.9" x 6.7" (per tier, two tiers) |
| Speed | 20 rpm (240V) / 24 rpm (120V), fixed |
| Material | Powder-coated steel housing, non-slip platform mats |
| Power | 120V/60Hz (US) or 240V/50Hz (UK & EU) |
| Sterility | Non-sterile |
| Pack Size | Each (1 unit) |
Available Options
| 120V, 60Hz, US Plug — 24 rpm | GTR-2-FS | $356.00 |
| 240V, 50Hz, UK & EU Plugs — 20 rpm | GTR-2-FS-UK-EU | $356.00 |
Applications
- Gentle mixing of blood collection tubes to prevent clotting and hemolysis
- Resuspension of settled cell cultures and bead-based assay reagents
- Continuous agitation during immunostaining and membrane hybridization
- Mixing of viscous samples and reagents prior to aliquoting
- Hematology and serology sample homogenization on clinical benches
- Low-shear nutrient distribution for sensitive biological suspensions
Chemical Resistance
| Reagent Class | Compatibility |
| Aqueous buffers | Excellent |
| Dilute acids | Good (wipe spills promptly) |
| Dilute bases | Good |
| Alcohols (ethanol, isopropanol) | Good — safe for routine disinfection |
| Acetonitrile | Limited — avoid prolonged platform contact |
| Aromatic solvents | Poor — may degrade mats and coating |
| Chlorinated solvents | Poor — avoid contact |
Quality & Procurement
Purchase through labsupplies.com, an authorized Globe Scientific dealer shipping from US inventory. Each unit ships with lot numbers supporting traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes and standing-order arrangements.
Frequently Asked Questions
What is the difference between the two options?
The GTR-2-FS runs on 120V/60Hz with a US plug at 24 rpm, while the GTR-2-FS-UK-EU runs on 240V/50Hz with UK and EU plugs at 20 rpm. Choose based on your regional mains supply.
Is the rocking speed adjustable?
No. Both units are fixed-speed models, providing reliable, repeatable motion without operator variability — ideal for standardized sample-mixing protocols.
How many tubes can the unit hold?
Capacity depends on tube size and rack configuration across the two 9.9" x 6.7" platforms. The double-tier design effectively doubles throughput versus a single-tier rocker of the same footprint.
Can the platforms be cleaned with disinfectant?
Yes. The platform mats and powder-coated housing tolerate alcohol-based disinfectants well. Wipe spills promptly and avoid aromatic or chlorinated solvents, which can degrade the surfaces.