VELP ROTAX 6.8 Tumbling Shaker
| Brand | VELP |
|---|---|
| Origin | Italy |
| Model | ROTAX 6.8 |
| Power Supply | 115 V / 230 V, 50–60 Hz |
| Rated Power | 100 W |
| Speed Range | 0–30 rpm |
| Display | LCD |
| Sample Capacity | 6 × 2 L bottles or 8 × 1 L bottles |
| Bottle Compatibility | 2 L PE bottles (H: 220–280 mm, Ø ≤ 135 mm) |
| 1 L PE bottles (H | 200–270 mm, Ø ≤ 110 mm) |
| Dimensions (W×H×D) | 665 × 520 × 470 mm |
| Weight | 30 kg |
| Construction | Epoxy-coated metal frame |
| Accessories Available | Polyethylene bottles (1 L / 2 L), 8-position 1 L bottle adapter (2 pcs/box), round glass bottle caps (2 L) |
Overview
The VELP ROTAX 6.8 Tumbling Shaker is an engineered solution for standardized leaching and solubility testing of solid matrices in environmental and waste characterization laboratories. It operates on the tumbling principle—rotating sample containers end-over-end along a horizontal axis—to simulate dynamic contact between solid-phase materials and aqueous extraction media under controlled agitation. This motion ensures homogeneous suspension, minimizes sediment stratification, and promotes reproducible mass transfer kinetics essential for regulatory compliance testing. Designed in accordance with standard leaching protocols—including EN 12457-1 to EN 12457-4, EPA Method 1311 (TCLP), and ISO 11268-1—the ROTAX 6.8 delivers consistent rotational dynamics critical for generating defensible data in landfill leachate studies, sludge stability assessment, and contaminated soil screening.
Key Features
- Programmable speed control (0–30 rpm) with digital LCD interface for precise, repeatable rotation rates
- Epoxy-coated steel chassis ensuring long-term corrosion resistance in humid or chemically aggressive lab environments
- Modular sample platform supporting multiple configurations: up to six 2 L polyethylene bottles or eight 1 L bottles simultaneously
- Adjustable bottle cradles accommodating variable container geometries—compatible with standard 1 L and 2 L PE bottles (height: 200–280 mm; max diameter: 110–135 mm)
- Dual-voltage operation (115 V / 230 V, 50–60 Hz) enabling global deployment without hardware modification
- Low-power consumption (100 W) and thermally stable motor design suitable for extended unattended operation
Sample Compatibility & Compliance
The ROTAX 6.8 is validated for use with chemically inert polyethylene (PE) bottles and borosilicate glass vessels capped with chemically resistant closures—ensuring minimal analyte adsorption or leaching from container walls during extraction. Its mechanical design meets the dimensional and kinematic requirements of internationally recognized leaching standards, including EN 12457 series for waste characterization and ISO 11268-1 for ecotoxicological testing of soils. The shaker’s tumbling motion replicates the low-shear, intermittent agitation specified in EPA Method 1311 (Toxicity Characteristic Leaching Procedure), making it suitable for regulated waste classification under RCRA and EU Waste Framework Directive reporting frameworks. All operational parameters are traceable and documentable per GLP-compliant laboratory practices.
Software & Data Management
While the ROTAX 6.8 operates as a stand-alone instrument with manual parameter input, its digital speed display and stable rotational output support integration into broader laboratory data management workflows. Users may log operating conditions (speed, duration, ambient temperature) manually or via external electronic lab notebooks (ELNs). For audit readiness, laboratories routinely pair the device with calibrated timers and environmental monitoring logs to satisfy 21 CFR Part 11 requirements for electronic records where applicable. Optional accessories—including barcoded bottle adapters and standardized vessel labeling kits—facilitate sample tracking within LIMS environments.
Applications
- Leaching behavior analysis of municipal solid waste, incineration ash, and construction/demolition debris
- Regulatory compliance testing for landfill acceptance criteria (e.g., EU Landfill Directive 1999/31/EC)
- Ecotoxicity screening of contaminated sediments and dredged materials
- Stability evaluation of stabilized/solidified hazardous waste forms
- Method development and validation for novel extraction solvents in geochemical research
- Quality control of industrial by-products prior to reuse or disposal
FAQ
What types of sample containers are compatible with the ROTAX 6.8?
Standard polyethylene (PE) bottles (1 L and 2 L) and round-bottom glass bottles (2 L) with appropriate sealing caps are supported. Bottle dimensions must fall within specified height and diameter ranges to ensure secure clamping and uniform tumbling motion.
Is the ROTAX 6.8 compliant with EPA Method 1311 (TCLP)?
Yes—the device satisfies the mechanical agitation requirements outlined in TCLP for end-over-end tumbling at 30 ± 2 rpm for 18 hours. Users must verify final pH adjustment and filtration steps per method specifications.
Can the shaker operate continuously for 18+ hours?
Yes—its thermally optimized motor and robust bearing system enable uninterrupted operation over standard leaching durations without performance degradation or overheating.
Does VELP provide calibration documentation for the ROTAX 6.8?
VELP supplies factory calibration certificates for rotational speed verification. Periodic user verification using a certified tachometer is recommended to maintain measurement traceability.
Are spare parts and service support available outside Italy?
Global technical support and authorized service partners are available through VELP’s international distribution network. Critical components—including motor assemblies, control boards, and bottle adapters—are stocked regionally for rapid replacement.
