Grant LMC-4200R High-Capacity Benchtop Refrigerated Centrifuge

Overview

The Grant LMC-4200R is a high-capacity benchtop refrigerated centrifuge engineered for reproducible, temperature-controlled separation in life science laboratories. Utilizing a brushless DC motor and precision-engineered refrigeration system, it delivers stable thermal management across the full operating range of −10 °C to +25 °C—critical for preserving thermolabile biomolecules during sample preparation. Its rotor architecture supports multiple configurations including fixed-angle and swing-out variants, enabling consistent sedimentation kinetics across diverse sample formats: conical-bottom tubes (up to 50 mL), round-bottom tubes (10–15 mL), Vacutainer-style blood collection tubes (2–9 mL), and standard 96-well microplates. With a maximum relative centrifugal force (RCF) of 3370 × g for tube rotors and 560 × g for microplate carriers, the LMC-4200R bridges the performance gap between compact benchtop units and floor-standing systems—without compromising footprint or operational safety.

Key Features

• Refrigerated operation with rapid cooling: achieves −10 °C from ambient in under 10 minutes, minimizing pre-run thermal equilibration delays
• Intelligent imbalance detection system with automatic rotor shutdown and audible/visual alerts—compliant with IEC 61010-1 safety requirements
• Soft-start and quick-stop functionality ensures gentle acceleration (≤15 s to 4200 rpm) and controlled deceleration (≤30 s to rest), reducing mechanical stress on samples and rotor integrity
• Robust all-metal housing with auto-locking lid mechanism and interlocked door switch—prevents operation when unlatched and halts rotation immediately upon lid opening
• Two-line 16-character LCD display provides real-time monitoring of speed (rpm), RCF (×g), temperature, remaining time, and error codes
• Programmable timer (1–90 minutes) with auto-shutdown and memory retention for up to 5 user-defined protocols
• Low-noise design (<62 dB[A] at maximum speed) suitable for shared laboratory environments without acoustic isolation

Sample Compatibility & Compliance

The LMC-4200R accommodates a broad spectrum of primary labware through interchangeable rotors and adapters. Standard configurations include the R-6 rotor (6 × 50 mL conical tubes, φ29 × 115 mm), R-12-10 (12 × 10–15 mL round-bottom tubes, φ16 × 105 mm), and R-2 microplate carrier (2 × 96-well plates, max depth 45 mm). Optional adapters support Vacutainer formats (BN-13/75, BN-13/100, BN-16/100) for clinical hematology workflows. All rotors are certified for continuous operation at rated speeds and temperatures. The unit meets electromagnetic compatibility standards per EN 61326-1 and electrical safety requirements per IEC 61010-1, supporting GLP-compliant documentation when integrated with validated SOPs. Temperature accuracy is maintained within ±1 °C across the setpoint range, verified per ISO/IEC 17025 traceable calibration procedures.

Software & Data Management

While the LMC-4200R operates via standalone front-panel controls, its parameter logging capability—including start/stop timestamps, final temperature, achieved RCF, and runtime—supports manual audit trails required under FDA 21 CFR Part 11 Annex 11 principles. For labs implementing electronic lab notebooks (ELNs) or LIMS integration, optional RS-232 or USB interfaces (available via accessory module) enable export of run logs in CSV format. All firmware updates are delivered via secure manufacturer portal and require physical authentication—ensuring version control and preventing unauthorized modification. No cloud connectivity or remote access is embedded, preserving data sovereignty and aligning with institutional IT security policies.

Applications

This centrifuge serves as a core platform in molecular biology, clinical diagnostics, and cell culture facilities. Typical use cases include: pelleting peripheral blood mononuclear cells (PBMCs) at 4 °C to inhibit protease activity; clarifying lysates prior to chromatography or electrophoresis; harvesting transfected mammalian cells without thermal shock; and preparing plasma or serum from whole blood using standardized cooling protocols. Its dual-speed capability—4200 rpm for high-resolution pelleting and 2000 rpm for gentle plate-based separations—makes it particularly suited for multi-step workflows where temperature stability and format flexibility are non-negotiable. Enzymologists rely on its precise thermal control to maintain catalytic integrity during pre-incubation centrifugation steps.

FAQ

What is the minimum operating temperature, and how quickly does the chamber reach it?
The LMC-4200R achieves −10 °C from room temperature (25 °C) in less than 10 minutes, verified under ISO 13485-aligned thermal mapping protocols.
Can the centrifuge operate continuously for extended runs?
Yes—when configured with appropriate rotors and maintained within ambient conditions (+4 °C to +40 °C), the unit supports uninterrupted operation for up to 90 minutes per cycle, with thermal load management ensuring compressor longevity.
Is rotor balancing required before each run?
No—the integrated dynamic imbalance sensor continuously monitors vibration amplitude and will halt rotation if asymmetry exceeds 0.5 mm peak-to-peak displacement, eliminating manual balance verification.
Are rotor certifications included with purchase?
Each rotor ships with a manufacturer-issued certificate of conformance, listing serial number, maximum speed rating, material composition (anodized aluminum alloy), and compliance with ISO 15529:2018 for centrifuge rotor safety.
Does the LMC-4200R support regulatory audits for GMP environments?
While not inherently 21 CFR Part 11-compliant out-of-the-box, its deterministic behavior, non-volatile parameter logging, and hardware-enforced safety interlocks provide foundational elements for validation under ICH Q7 and EU GMP Annex 15 frameworks.