Langbo ZNF-82A Corrosion-Resistant Orbital Shaker

Overview

The Langbo ZNF-82A Corrosion-Resistant Orbital Shaker is a precision-engineered benchtop incubation shaker designed for applications requiring simultaneous temperature control and mechanical agitation in life science and bioprocessing laboratories. It integrates a thermostatically regulated water bath chamber with a robust reciprocating motion platform, enabling stable thermal environments while maintaining consistent orbital or linear oscillation—critical for cell culture expansion, microbial growth kinetics, enzyme reaction studies, and solubility testing. Unlike standard air-jacketed shakers, the ZNF-82A employs a direct-contact water bath system that ensures superior thermal uniformity (±0.3°C at 37°C) and minimal temperature gradient across the platform surface. Its corrosion-resistant construction—including electropolished stainless-steel water tank, chemically inert silicone-sealed joints, and powder-coated steel frame—ensures long-term reliability when exposed to saline solutions, acidic buffers, or organic solvents commonly used in molecular biology and environmental sample preparation.

Key Features

• Reciprocating oscillation mode with adjustable frequency range from 0 to 280 rpm, optimized for suspension cultures and heterogeneous mixing without foaming or shear-induced cell damage.
• Precision digital PID temperature controller with real-time display and ±0.3°C stability over full operating range (ambient +5°C to 100°C), validated per ASTM E2251-22 for laboratory thermal equipment.
• 200 mm stroke amplitude provides high-efficiency mixing for flasks up to 5 L and multi-well plates, supporting scalable process development from R&D to pilot-scale fermentation.
• Programmable timer (1–999 hours) with auto-shutdown and memory retention function—essential for unattended overnight experiments and reproducible protocol execution.
• Single-platform configuration with universal clamp compatibility (standardized 1/4″–1/2″ threaded inserts) for secure mounting of Erlenmeyer flasks, test tubes, petri dishes, and custom bioreactor vessels.
• Energy-efficient refrigeration-free heating system using high-density PTC ceramic elements; no compressor required, eliminating vibration coupling and reducing acoustic noise below 52 dB(A).

Sample Compatibility & Compliance

The ZNF-82A accommodates a broad spectrum of biological and chemical sample formats, including aqueous suspensions, viscous media (e.g., agarose gels, collagen matrices), and low-volume microtiter plates. Its non-porous, acid-resistant water bath liner prevents leaching of metallic ions—critical for trace-metal-sensitive assays such as ICP-MS sample digestion or heavy-metal bioavailability studies. The unit conforms to IEC 61010-1:2010 safety standards for electrical equipment in laboratory use and supports audit-ready operation under GLP and GMP frameworks. While not FDA 21 CFR Part 11–certified out-of-the-box, its firmware allows integration with third-party electronic lab notebook (ELN) systems via RS-232 serial output for timestamped parameter logging and user-accessible audit trails.

Software & Data Management

The ZNF-82A operates via an embedded microcontroller interface with dual-line LCD display and tactile membrane keypad. All setpoints—temperature, speed, and time—are stored in non-volatile memory and recalled after power interruption. Optional analog voltage output (0–5 V DC) enables connection to external data acquisition systems for continuous monitoring. For centralized lab management, the device supports Modbus RTU protocol through optional USB-to-RS485 adapter, permitting remote configuration and status polling within LabVantage or Thermo Fisher SampleManager environments. No proprietary software installation is required; configuration files are exportable as CSV for traceability in quality assurance documentation.

Applications

• Mammalian and insect cell line propagation under controlled thermal-agitation conditions for monoclonal antibody production.
• Environmental microbiology: enrichment cultures of sulfate-reducing bacteria in anaerobic sediments using customized gas-tight flask assemblies.
• Pharmaceutical QA/QC: dissolution testing of extended-release tablets per USP <711> guidelines, leveraging precise temperature ramping and agitation synchronization.
• Enzyme kinetics assays requiring strict thermal regulation during multi-hour reaction monitoring (e.g., lysozyme activity in buffered NaCl solutions).
• Soil and water remediation research: accelerated aging studies of pollutant-degrading consortia under simulated field temperatures.

FAQ

What materials are used in the water bath chamber to ensure corrosion resistance?
The chamber is constructed from electropolished 316 stainless steel with passivated surface treatment and sealed using food-grade silicone gaskets compliant with FDA 21 CFR 177.2600.
Is the ZNF-82A suitable for use with volatile organic solvents?
Yes—provided appropriate ventilation and containment measures are implemented; the unit lacks explosion-proof certification but features solvent-resistant seals and non-sparking motor components.
Can multiple units be synchronized for parallel experiment runs?
Not natively; however, external PLC-based timing controllers can coordinate start/stop signals across multiple ZNF-82A units via dry-contact relay outputs.
Does the device support ramp-and-soak temperature profiles?
No—the controller maintains only constant-setpoint operation; programmable ramps require external PID controllers interfaced via analog input.
What maintenance is recommended to sustain calibration integrity?
Biannual verification using NIST-traceable RTD probe and tachometer; cleaning of water bath with 10% citric acid solution every 200 operational hours to prevent scale accumulation.