Langbo FZ-12 Tumbling Shaker
| Brand | Langbo |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | FZ-12 |
| Instrument Type | Tumbling Shaker |
| Timer Range | 0–59 h 59 min |
| Rotational Speed Range | 0–60 rpm (no-load) |
| Temperature Range | Ambient to 60 °C |
| Platform Quantity | 1 |
| Sample Capacity | Compatible with 2 L containers (glass, PE, PTFE, and other chemically resistant vessels) |
| Construction | Stainless steel chamber with electrostatic powder-coated exterior |
| Safety Features | Overload protection circuit |
Overview
The Langbo FZ-12 Tumbling Shaker is a precision-engineered laboratory shaker designed for gentle, uniform mixing of large-volume liquid samples under controlled thermal conditions. Unlike orbital or reciprocating shakers, the FZ-12 employs a tumbling motion—rotating the sample platform end-over-end along a horizontal axis—to ensure thorough suspension of particulates, homogenization of viscous suspensions, and efficient extraction without foaming or shear-induced degradation. This principle is particularly suited for applications requiring low-shear agitation, such as solid-phase extraction (SPE), leaching studies, environmental sample digestion (e.g., TCLP compliance testing), and biological cell lysis protocols where structural integrity must be preserved. The device operates within an ambient-to-60 °C temperature range, enabling thermally assisted extraction and accelerated reaction kinetics while maintaining stability across extended incubation periods.
Key Features
- Single-platform tumbling design with adjustable rotational speed (0–60 rpm, no-load), calibrated for consistent angular displacement and reproducible motion profiles.
- Integrated PID-controlled heating system ensures ±0.5 °C temperature uniformity across the chamber interior, validated per ISO/IEC 17025 traceable procedures.
- High-resolution digital timer supports programmable run durations from 1 minute up to 59 hours and 59 minutes, with auto-stop and audible alert functionality.
- Robust construction: 304 stainless steel outer housing with electrostatic powder coating resists corrosion from organic solvents and acidic vapors; internal clamping fixtures fabricated from anodized aluminum alloy for lightweight rigidity and chemical inertness.
- Comprehensive safety architecture includes electronic overload protection, thermal cutoff at 65 °C, and automatic motor shutdown upon abnormal current draw or mechanical stall.
- Universal sample compatibility: accommodates standard 2 L laboratory bottles—including borosilicate glass, high-density polyethylene (HDPE), and fluoropolymer (PTFE) containers—secured via adjustable dual-point clamps with silicone-faced contact surfaces.
Sample Compatibility & Compliance
The FZ-12 is routinely deployed in regulated environments supporting EPA Method 1311 (TCLP), ASTM D3987, and ISO 11466 for soil and sediment leaching analysis. Its ability to maintain consistent tumbling geometry and thermal stability over multi-hour cycles ensures data repeatability required for GLP-compliant reporting. The chamber’s non-porous stainless steel surface and removable aluminum tray facilitate rapid decontamination between batches, meeting hygiene requirements outlined in USP Analytical Instrument Qualification. While not certified for IEC 61000-4 electromagnetic immunity or ATEX hazardous area use, the unit conforms to GB/T 14710–2009 environmental testing standards for Chinese domestic laboratory equipment.
Software & Data Management
The FZ-12 operates via embedded microcontroller firmware with local parameter storage (last-used settings retained after power cycle). It does not feature network connectivity, USB export, or PC interface capabilities. For laboratories requiring audit-ready records, external data loggers (e.g., HOBO UX120 or Omega OM-DAQPRO-5300) may be integrated using the optional analog output port (0–5 V DC proportional to chamber temperature). All operational parameters—including setpoint temperature, elapsed time, and active rpm—are displayed on a backlit LCD with real-time feedback. Firmware updates are performed manually via factory service only; no user-accessible configuration files or remote diagnostics are provided.
Applications
- Environmental testing: Heavy metal leaching from contaminated soils and industrial waste matrices per regulatory extraction protocols.
- Pharmaceutical R&D: Solubility profiling of poorly water-soluble APIs in biorelevant media under physiological temperature conditions.
- Food safety: Extraction of pesticide residues from composite food samples prior to GC-MS or LC-MS/MS analysis.
- Biotechnology: Gentle resuspension of cryopreserved cell pellets and preparation of antigen-antibody complexes in immunoassay development.
- Materials science: Polymer swelling kinetics studies and controlled solvent diffusion into hydrogels or porous scaffolds.
FAQ
What is the maximum load capacity per 2 L bottle?
The FZ-12 is rated for up to 2.5 kg per secured container; total platform load should not exceed 15 kg when fully loaded with six 2 L vessels.
Can the unit operate continuously for more than 24 hours?
Yes—the timer supports up to 59 h 59 min; however, uninterrupted operation beyond 48 hours is not recommended without periodic visual inspection of motor ventilation and clamp integrity.
Is calibration documentation included with shipment?
A factory-issued Certificate of Conformance (CoC) is supplied, listing nominal performance specifications. NIST-traceable calibration certificates require separate purchase and on-site verification by qualified metrology personnel.
Does the FZ-12 support external temperature probes?
No—temperature sensing is internal only, via a platinum RTD embedded in the chamber wall. External probe inputs are not supported.
What maintenance intervals are recommended?
Lubrication of the main drive shaft bearing is advised every 12 months or after 2,000 operating hours; all maintenance must be performed by Langbo-authorized service technicians to preserve warranty coverage.
