SHZ-28B Oil Bath Constant-Temperature Orbital Shaker
| Origin | Jiangsu, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Product Origin | Domestic (China) |
| Model | SHZ-28B |
| Price | USD 1,650 (FOB Jiangsu) |
| Rotation Mode | Orbital |
| Speed Range | 50–250 rpm |
| Temperature Range | Ambient to 200 °C |
| Tray Dimensions | 300 × 400 mm |
| Adjustable Mesh Rack Vertical Travel | 50 mm |
| Compatible Vessel Types | Erlenmeyer flasks (50–5000 mL), test tubes, centrifuge tubes, and custom glassware |
Overview
The SHZ-28B Oil Bath Constant-Temperature Orbital Shaker is an integrated thermal-mechanical platform engineered for precise simultaneous temperature control and uniform orbital agitation in life science and bioprocess laboratories. Unlike air-heated shakers, this instrument employs a silicone oil bath as the primary heat transfer medium—ensuring exceptional thermal stability, minimal temperature gradients (< ±0.3 °C at 150 °C steady state), and direct conductive heating of vessel bottoms. Its orbital motion (20 mm diameter) generates gentle yet effective mixing ideal for cell culture suspension, enzyme kinetics assays, solubility studies, and solvent-based extractions where shear sensitivity and thermal homogeneity are critical. Designed for continuous operation under GLP-compliant workflows, the SHZ-28B meets structural and safety requirements aligned with IEC 61010-1 for laboratory equipment, including overtemperature cutoff, oil-level monitoring, and grounded stainless-steel bath housing.
Key Features
- Stable oil bath thermal system with PID-controlled heating and digital display resolution of 0.1 °C across 0–200 °C range
- Orbital shaking mechanism with adjustable speed (50–250 rpm) and calibrated tachometric feedback for long-term reproducibility
- Large-format 300 × 400 mm stainless steel tray with reinforced load capacity up to 15 kg (uniformly distributed)
- Modular universal clamp fixture system featuring corrosion-resistant spring-loaded stainless steel jaws, accommodating round-bottom flasks (50–5000 mL), conical tubes, and custom cylindrical vessels
- Vertically adjustable mesh rack with 50 mm travel range—enabling precise immersion depth control for variable-height containers and optimized heat transfer efficiency
- Front-access oil fill port with sight gauge and removable drain valve for maintenance and fluid replacement per ISO 6743-12 lubricant specifications
- Double-wall insulated chamber with silicone oil containment gasketing to minimize evaporation and thermal loss during extended runs
Sample Compatibility & Compliance
The SHZ-28B supports standard laboratory glassware including borosilicate Pyrex® and Duran® flasks, polycarbonate reaction vessels, and PTFE-lined containers compatible with high-temperature organic solvents (e.g., DMSO, DMF, ethylene glycol). Its open-bath architecture allows real-time visual monitoring and manual intervention without interrupting thermal or mechanical cycles. The device complies with key regulatory frameworks for lab instrumentation: electrical safety per IEC 61010-1:2010, electromagnetic compatibility (EMC) per EN 61326-1:2013, and material compatibility with USP Class VI plastics where applicable. While not certified for GMP manufacturing environments, its design supports audit-ready documentation practices—including calibration logs, maintenance records, and temperature uniformity mapping per ASTM E2251-17 guidelines.
Software & Data Management
The SHZ-28B operates via an embedded microcontroller interface with non-volatile memory for storing up to 10 user-defined protocols (speed, temperature, duration). Real-time parameters are displayed on a backlit LCD with dual-channel readout (setpoint vs. actual). Optional RS-485 Modbus RTU output enables integration into centralized lab monitoring systems (e.g., LabVantage, Thermo Fisher SampleManager) for time-stamped data logging, remote start/stop commands, and alarm forwarding. All temperature and speed events are timestamped with millisecond precision and support CSV export for traceability—meeting minimum ALCOA+ principles for raw data integrity in QC/QA applications.
Applications
- Temperature-dependent enzymatic hydrolysis and ligand-binding assays requiring sustained 37–95 °C agitation
- Solvent-mediated crystallization screening in pharmaceutical development (e.g., polymorph screening in hot ethanol/water mixtures)
- Extraction of thermolabile natural products using heated oil-phase systems (e.g., curcumin from turmeric in 180 °C sunflower oil)
- Preparation of homogeneous polymer solutions prior to rheological or spectroscopic analysis
- Accelerated stability testing per ICH Q1A(R3) under elevated temperature stress conditions
- Cell suspension culture of temperature-sensitive hybridomas or insect cell lines in serum-free media
FAQ
What types of oil are recommended for use with the SHZ-28B?
Silicone oil (viscosity grade 100–350 cSt at 25 °C) is strongly recommended; mineral oils may degrade above 150 °C and generate volatile byproducts.
Can the unit be operated without oil in the bath?
No—dry operation will damage the heater element and void warranty. The bath must be filled to the minimum level mark before power-on.
Is the stainless steel clamp fixture autoclavable?
Yes, all clamp components are constructed from AISI 316 stainless steel and withstand standard autoclave cycles (121 °C, 15 psi, 20 min) without deformation or passivation loss.
Does the SHZ-28B support external temperature probe input for vessel-specific monitoring?
Not natively—but the RS-485 interface allows connection to third-party PT100 probes via compatible Modbus-enabled controllers for cascade temperature regulation.
What is the maximum allowable oil volume in the bath chamber?
Maximum fill capacity is 12 L; exceeding this compromises circulation dynamics and increases thermal inertia beyond specification limits.
