DRETOP DZYL-7145 Dual-Door Constant-Temperature Orbital Shaker

Overview

The DRETOP DZYL-7145 Dual-Door Constant-Temperature Orbital Shaker is an integrated laboratory instrument engineered for precise simultaneous control of temperature and orbital motion in biological and biochemical applications. Based on the principle of orbital shaking—where samples undergo uniform circular motion at a fixed 26 mm diameter—the system ensures homogeneous suspension, efficient oxygen transfer, and consistent mixing across culture vessels. Designed as a dual-platform air-bath shaker, it supports independent operation of two stainless steel trays within a single insulated chamber, enabling parallel experiments under identical or differentiated thermal and kinetic conditions. Its temperature regulation employs a high-stability PID feedback loop with ±0.1°C accuracy across the operational range of RT+5°C to 60°C, while speed control maintains ±1 rpm repeatability from 0 to 300 rpm. The unit meets core functional requirements for aerobic microbial cultivation, enzyme kinetics, cell line expansion, and recombinant protein expression—particularly where spatial efficiency, process reproducibility, and GxP-aligned operational traceability are critical.

Key Features

• Two independently accessible doors with tempered glass viewing windows and integrated LED illumination—enabling real-time visual monitoring without thermal disruption.
• Dual-tier stainless steel platforms (710 × 455 mm each), rated for combined loads up to 30 kg, with reinforced support structure and anti-slip surface finish.
• Brushless DC motor drive delivering maintenance-free operation, wide-speed torque consistency, and silent performance across the full 0–300 rpm range.
• Three-dimensional eccentric cam mechanism with soft-start ramping to eliminate sample splash and mechanical shock during acceleration/deceleration cycles.
• Microprocessor-based PID controller with backlit LCD interface displaying real-time temperature, speed, elapsed time, and remaining timer—supporting password-protected parameter locking and automatic resume after power interruption.
• Robust enclosure featuring electrophoretically coated steel housing, seamless stainless steel interior, and double-layer insulation for energy-efficient thermal retention.

Sample Compatibility & Compliance

The DZYL-7145 accommodates standard laboratory vessels—including Erlenmeyer flasks (100–5000 mL), test tubes, microtiter plates, and custom bioreactor bags—via interchangeable clamp systems (spring, fixed, or universal). Its dual-door architecture allows selective access to either shelf without disturbing adjacent cultures, minimizing cross-contamination risk and thermal loss. The unit complies with general safety standards IEC 61010-1 (Laboratory Equipment) and electromagnetic compatibility directive 2014/30/EU. While not certified for ISO Class 5 cleanroom use out-of-the-box, optional UV-C germicidal irradiation (254 nm) and HEPA-filtered air exchange modules enable enhanced sterility management for sensitive mammalian or stem cell workflows. For regulated environments, the USB data export function supports audit-ready record generation aligned with GLP documentation practices.

Software & Data Management

Data acquisition and configuration are managed via the embedded LCD interface—no external PC required for routine operation. All setpoints (temperature, speed, duration), real-time sensor outputs, and alarm events are stored in non-volatile memory with timestamping. Optional USB interface enables direct download of time-series logs (CSV format) for post-experiment analysis in Excel, MATLAB, or LIMS platforms. Logged parameters include chamber temperature, platform speed, cumulative runtime, and event flags (e.g., door open, over-temp trigger). Though not natively 21 CFR Part 11 compliant, the system supports manual SOP-driven validation protocols including IQ/OQ documentation templates provided by DRETOP upon request.

Applications

This shaker serves validated roles in academic research laboratories, pharmaceutical QC units, and industrial bioprocess development facilities. Typical use cases include: aerobic bacterial growth (E. coli, Bacillus spp.) under controlled aeration; yeast fermentation kinetics; hybridoma cell expansion in serum-free media; enzymatic hydrolysis assays requiring precise thermal and mixing stability; and environmental microbiology studies involving soil or water isolates. Its dual-platform design is especially advantageous for comparative studies—e.g., dose-response screening across antibiotic concentrations, media optimization trials, or temperature-shift experiments in circadian rhythm research. When equipped with CO₂ inlet and IR sensor (optional DZYL-7145R variant), it further supports pH-sensitive mammalian suspension cultures.

FAQ

What is the maximum load capacity per platform?
Each platform supports up to 15 kg, with total chamber capacity limited to 30 kg distributed across both shelves.
Can the two platforms operate at different temperatures or speeds?
No—temperature and oscillation parameters are synchronized across both platforms; independent control is not supported in this model.
Is the unit suitable for long-term unattended operation?
Yes, with its auto-restart function, over-temperature/over-speed safeguards, and 9999-minute timer, it is routinely deployed for overnight and multi-day incubations.
Does the shaker include calibration certificates?
Factory calibration data is provided with shipment; NIST-traceable third-party calibration services are available through authorized DRETOP service partners.
What maintenance is required for the brushless motor?
None—brushless DC motors require no periodic brush replacement or lubrication, ensuring >20,000 hours of continuous operation under nominal load conditions.