Jeiotech CRS-350 Rocking Platform Shaker
| Brand | JEIO TECH |
|---|---|
| Origin | South Korea |
| Model | CRS-350 |
| Timer Range | 1 min – 99 h 59 min |
| Oscillation Speed | 5–100 rpm |
| Tilt Angle | 7°–13° |
| Platform Dimensions (W×D) | 276 × 276 mm |
| Max Load Capacity | 5 kg |
| Host Material | Polypropylene (PP) |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Operating Temperature | 5–40 °C |
| Relative Humidity | ≤80% RH |
| Net Weight | 3.7 kg |
| Display | Vacuum Fluorescent Display (VFD) |
| Control System | PID Feedback Controller |
| Safety Features | Overcurrent Protection, Self-Diagnostic Function |
Overview
The Jeiotech CRS-350 Rocking Platform Shaker is a compact, precision-engineered laboratory shaker designed for gentle yet effective mixing of liquid samples in tubes, microplates, Petri dishes, flasks, and shallow containers. Utilizing a controlled rocking motion—rather than orbital or reciprocating agitation—the CRS-350 generates uniform fluid displacement across the entire sample surface, minimizing shear stress while maximizing homogenization efficiency. This makes it particularly suitable for applications requiring low-turbulence mixing, such as hybridization, staining, washing, blotting, and cell suspension maintenance. Its all-polypropylene (PP) housing provides inherent resistance to common laboratory solvents and acids, ensuring long-term durability and ease of decontamination. Engineered for integration into constrained environments, the unit operates reliably inside incubators, cold rooms, environmental chambers, and refrigerated workspaces—maintaining consistent performance across ambient temperatures from 5 °C to 40 °C.
Key Features
- PID feedback-controlled rocking mechanism ensures stable speed regulation with ±5 rpm accuracy at 100 rpm, delivering high reproducibility across repeated runs.
- Adjustable tilt angle (7°–13°) enables fine-tuning of mixing intensity to match sample viscosity and container geometry.
- Vacuum fluorescent display (VFD) offers high-contrast, wide-view-angle readout of real-time parameters—including set speed, tilt angle, and remaining timer duration—with intuitive touch-sensitive controls.
- Programmable timer supports durations from 1 minute to 99 hours and 59 minutes, supporting both short-term protocols and unattended overnight operations.
- Lightweight (3.7 kg) and compact external dimensions (249 × 325 × 138 mm) allow seamless placement on benchtops, within CO₂ incubators, or inside refrigerated cabinets without compromising airflow or thermal stability.
- Integrated safety systems include automatic error detection, overcurrent protection, and fail-safe shutdown upon abnormal load or motor stall.
Sample Compatibility & Compliance
The CRS-350 accommodates a broad range of labware configurations via interchangeable platform inserts: standard dimpled silicone mat (included), adhesive rubber mat (AAA38501), and universal mat with elastic straps (AAA38503). These accessories secure vessels ranging from 0.5 mL microtubes to 100 mL beakers, 96-well plates, glass or plastic Petri dishes, and shallow staining trays. The 276 × 276 mm platform supports even distribution of loads up to 5 kg without vibration-induced displacement. While not certified for GMP or GLP environments out-of-the-box, the device complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and meets RoHS directives. Its chemical-resistant PP construction facilitates routine cleaning with ethanol, isopropanol, or 10% bleach solutions—supporting ISO 15190-compliant lab hygiene practices.
Software & Data Management
The CRS-350 operates as a standalone instrument with no embedded software or data logging capability. All operational parameters are configured and monitored locally via the front-panel VFD interface. For laboratories requiring audit trails or electronic records, integration with external environmental monitoring systems (e.g., LabVIEW-based DAQ or custom SCADA platforms) is possible through analog voltage output options (available upon request with optional accessories). Though not FDA 21 CFR Part 11 compliant by default, the unit’s deterministic behavior, mechanical reliability, and traceable calibration history support inclusion in validated workflows under quality management systems aligned with ISO/IEC 17025 or ISO 9001.
Applications
- Nucleic acid hybridization (Southern/Northern blotting)
- Antibody and probe incubation in immunoassays
- Gel staining and destaining (Coomassie, silver, SYBR dyes)
- Cell culture maintenance during transient suspension steps
- Enzyme-linked immunosorbent assay (ELISA) plate washing and blocking
- Extraction buffer equilibration in protein purification workflows
- Low-shear mixing of viscous reagents, agarose gels, or tissue homogenates
FAQ
Can the CRS-350 be used inside a CO₂ incubator?
Yes—its compact size, low heat dissipation, and PP housing make it compatible with standard CO₂ incubators operating between 5 °C and 40 °C. Ensure adequate clearance around ventilation slots.
Is the tilt angle calibrated at the factory?
Tilt angle is mechanically preset and user-adjustable via dual-position cam levers; no recalibration is required under normal use. Angle verification can be performed using an inclinometer placed on the platform surface.
What is the warranty coverage for the CRS-350?
JEIO TECH provides a 2-year limited warranty covering parts and labor for defects in materials and workmanship under standard laboratory use conditions.
Does the unit support external triggering or remote start/stop?
No—the CRS-350 lacks digital I/O or communication ports (e.g., RS-232, USB, Ethernet). It is designed exclusively for manual operation.
How often should the rocking mechanism be serviced?
Under typical usage (≤8 hrs/day), no scheduled maintenance is required. Visual inspection of platform mounting and drive belt tension is recommended annually.
