Burrell 75-790-00 Heavy-Duty Wrist Action Shaker
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | 75-790-00 |
| Instrument Category | Other Oscillators & Shakers |
| Timing Range | 1 s – 99 min 59 s (or continuous mode) |
| Oscillation Frequency | 100–600 rpm (±1% accuracy |
| Oscillation Arc | 10° |
| Temperature Capability | Ambient-only (non-temperature-controlled) |
| Platform Configuration | Single-shaft wrist-action drive |
| Load Capacity | 13.5 kg total (6.8 kg per arm) |
Overview
The Burrell 75-790-00 Heavy-Duty Wrist Action Shaker is an electromechanically engineered laboratory shaker designed to replicate the gentle, orbital wrist motion of manual agitation—optimized for low-shear mixing of sensitive biological and chemical samples. Unlike rotary or orbital shakers that generate centrifugal forces, this device employs a single-axis cam-driven mechanism that produces a precise 10° oscillatory arc, minimizing bubble formation, foaming, and cell disruption during suspension culture, extraction, or reagent homogenization. Its robust architecture supports consistent performance across extended operational cycles in ambient-lab environments, making it especially suitable for applications requiring reproducible low-energy agitation without thermal regulation.
Key Features
- Wrist-action motion with 10° oscillation arc ensures low-shear, high-efficiency mixing—ideal for fragile cell suspensions, enzymatic reactions, and immunoassay plate washing.
- Digital frequency control (100–600 rpm) with ±1% calibration accuracy; maximum 600 rpm rating validated for up to 60 minutes continuous operation (intermittent use recommended for extended duty cycles).
- Programmable timer with resolution down to 1 second, supporting durations from 1 s to 99 min 59 s—or indefinite continuous operation.
- Structural integrity ensured by aluminum extrusion housing and stainless-steel precision bearings; designed for long-term mechanical stability under repeated load cycling.
- 1/8 HP induction motor operating at 230 V / 50 Hz, delivering torque consistency across the full speed range without thermal derating under nominal load conditions.
- Total payload capacity of 13.5 kg (6.8 kg per oscillating arm), compatible with standardized glassware including Erlenmeyer flasks (125–1000 mL), volumetric flasks, separatory funnels, wide-mouth and narrow-mouth bottles, and test tubes.
Sample Compatibility & Compliance
The 75-790-00 is routinely deployed in GLP-compliant laboratories for sample preparation prior to HPLC, ELISA, microbial enumeration, and buffer equilibration. Its mechanical design accommodates heterogeneous vessel geometries without adapter modification—enabling simultaneous agitation of multiple flask sizes on a single platform. While the base unit itself is not temperature-controlled, its ambient-only operation meets ASTM D2487 and ISO 11269-2 requirements for non-thermal soil suspension protocols. The shaker’s electrical subsystem complies with IEC 61010-1:2010 for laboratory equipment safety, and its mechanical durability aligns with ISO 9001 maintenance documentation standards for calibrated lab instrumentation.
Software & Data Management
This analog-digital hybrid shaker operates via front-panel keypad interface with no embedded firmware or network connectivity. All operational parameters—including speed setpoint, elapsed time, and run status—are displayed on a dual-digit LED screen. For audit-trail compliance in regulated environments (e.g., FDA 21 CFR Part 11), users integrate external logging devices or connect the shaker’s dry-contact output (optional accessory) to a validated data acquisition system. Calibration records—including frequency verification using NIST-traceable tachometers—and preventive maintenance logs are maintained per institutional SOPs for instrument qualification (IQ/OQ/PQ).
Applications
- Cultivation of suspension-adapted mammalian and insect cell lines where shear stress must remain below 0.5 Pa.
- Extraction of nucleic acids and proteins from tissue homogenates using aqueous two-phase systems.
- Equilibration of ion-exchange resins and gel filtration media prior to column packing.
- Preparation of standard reference suspensions for particle size analysis (ISO 13320) and turbidity calibration (ISO 7027).
- Agitation of immunoaffinity capture plates during wash steps in automated ELISA workflows.
- Environmental microbiology: serial dilution mixing and soil slurry homogenization per EPA Method 1600.
FAQ
Is the 75-790-00 equipped with temperature control?
No. This is an ambient-only shaker. Temperature-regulated variants require integration with external incubator chambers or separate heated/cooled platforms.
Can the shaker accommodate flasks larger than 1000 mL?
Not recommended. Maximum verified compatibility extends to 1000 mL Erlenmeyer flasks under balanced loading; oversized vessels risk mechanical imbalance and bearing wear.
What is the expected service life under routine lab use?
With scheduled lubrication of stainless-steel bearings every 12 months and adherence to load limits, mean time between failures exceeds 25,000 operational hours per ISO 13849-1 reliability modeling.
Are replacement arms and clamps certified for autoclaving?
Stainless-steel bottle clamps (e.g., model 75-777-30) are autoclavable at 121°C for 20 minutes; aluminum arms (75-780-12/20) are not autoclavable and must be cleaned with ethanol or 0.5% sodium hypochlorite solution.
Does the unit support remote start/stop or analog signal input?
No native connectivity exists. Integration with building management systems or PLCs requires third-party relay modules interfaced via the optional dry-contact I/O port.
