Kylin-Bell QB-118 Wrist-Action Shaker
| Brand | Kylin-Bell |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | QB-118 |
| Instrument Type | Wrist-Action Shaker |
| Timing Range | 0–120 min or Continuous Operation |
| Oscillation Frequency | 10–80 rpm |
| Oscillation Amplitude | 2.0 ± 0.1 mm |
| Platform Configuration | Single Integrated Wrist-Motion Platform |
| Operating Angle | 30° |
| Power Supply | 110–220 V AC, 50/60 Hz |
| Dimensions (W×D×H) | 240 × 390 × 240 mm |
| Net Weight | 7 kg |
Overview
The Kylin-Bell QB-118 Wrist-Action Shaker is a compact, precision-engineered laboratory shaker designed for gentle yet effective mixing of liquid samples in conical flasks (50–500 mL), standard bottles, and test tubes. Unlike orbital or reciprocating shakers, the QB-118 employs a true wrist-action motion—generated by an eccentric drive mechanism—that replicates the natural rocking motion of a human wrist. This motion induces controlled, low-shear oscillation with a fixed 30° tilt angle and a consistent 2.0 ± 0.1 mm amplitude, making it particularly suitable for applications requiring minimal foaming, reduced cell shear stress, or uniform suspension of sensitive biological suspensions. The device operates across a broad speed range of 10–80 rpm, enabling users to fine-tune agitation intensity for diverse sample viscosities and container geometries. Its robust metal chassis, integrated platform design (without detachable plates), and universal voltage compatibility (110–220 V AC) ensure stable performance in multi-site academic, pharmaceutical QC, and industrial R&D laboratories.
Key Features
- True wrist-action oscillation mechanism delivering reproducible 30° rocking motion and precise 2.0 ± 0.1 mm amplitude
- Adjustable speed control (10–80 rpm) via calibrated analog dial for intuitive, stepless regulation
- Mechanical timer with dual-mode operation: programmable 0–120 minute countdown or continuous run mode
- Integrated single-platform architecture—no separate trays or clamps required; optimized for direct placement of flasks, bottles, and tubes
- LED digital speed display for real-time rotational feedback and operational verification
- Compact footprint (240 × 390 × 240 mm) and lightweight construction (7 kg) for flexible benchtop deployment and easy relocation
- Wide-input power supply (110–220 V AC, 50/60 Hz) supporting global laboratory electrical standards without external transformers
Sample Compatibility & Compliance
The QB-118 accommodates common lab vessels including Erlenmeyer flasks (50–500 mL), cylindrical bottles, and upright or angled test tubes. Its wrist-motion profile ensures homogeneous mixing without vortex formation or excessive splashing—critical for maintaining viability in microbial cultures, antibody dilutions, immunoassay plate preparations, and buffer equilibration. While not certified to ISO/IEC 17025 or FDA 21 CFR Part 11 out-of-the-box, the shaker’s mechanical timer and analog speed control support GLP-compliant documentation when paired with lab-specific SOPs and manual log entries. Its construction adheres to IEC 61010-1 safety standards for electrical equipment used in laboratory environments.
Software & Data Management
The QB-118 is a standalone, hardware-controlled instrument with no embedded microprocessor, network interface, or software connectivity. All operational parameters—including speed setting and timer activation—are managed locally via front-panel controls. This architecture eliminates firmware dependencies, cybersecurity risks, and calibration drift associated with digital controllers. For regulated environments, users may integrate the QB-118 into electronic lab notebooks (ELNs) or LIMS via manual entry of batch parameters (e.g., rpm, duration, vessel type), satisfying traceability requirements under GMP Annex 11 and USP Analytical Instrument Qualification guidelines.
Applications
- Cell culture maintenance: Gentle resuspension of adherent and suspension cells prior to passaging or harvesting
- Clinical diagnostics: Uniform mixing of serum/plasma samples in immunoassay workflows (e.g., ELISA, lateral flow preparation)
- Pharmaceutical development: Solubility testing, dissolution profiling support, and excipient dispersion in early-stage formulation studies
- Food & beverage QA: Homogenization of viscosity-modified beverages, emulsion stability assessment, and microbial enrichment media preparation
- Cosmetic R&D: Emulsion blending, preservative efficacy test (PET) sample agitation, and pH-adjusted lotion consistency validation
- Academic teaching labs: Demonstrating fluid dynamics principles, mass transfer kinetics, and shear-sensitive bioprocess fundamentals
FAQ
What types of containers are compatible with the QB-118?
Standard 50–500 mL Erlenmeyer flasks, round-bottom bottles, and vertical or tilted test tubes can be securely placed directly on the platform without clamps or adapters.
Is the QB-118 suitable for sterile applications?
Yes—the unit features a smooth, non-porous powder-coated steel surface that supports routine disinfection with 70% ethanol or isopropyl alcohol between uses.
Does the QB-118 offer programmable ramping or multi-step protocols?
No—it is a manually operated analog device with fixed-speed and fixed-timer functionality; it does not support automated sequences or memory recall.
Can the QB-118 be used inside incubators or cold rooms?
It is rated for ambient operation (10–40°C, ≤80% RH); extended use below 15°C may affect mechanical longevity and is not validated by the manufacturer.
What maintenance is required for long-term reliability?
Annual inspection of the eccentric drive coupling and lubrication of the pivot joint with silicone-based grease is recommended to preserve motion fidelity and minimize wear.
