METTLER TOLEDO BenchSmart 96 Liquid Handling Workstation

Overview

The METTLER TOLEDO BenchSmart 96 Liquid Handling Workstation is an engineered solution for high-precision, medium-throughput liquid transfer in life science laboratories. Designed around a motorized 96-channel pipetting architecture, it operates on positive displacement and air displacement principles—optimized for reproducible handling of aqueous and low-viscosity biological samples across standard microplate formats (e.g., 96-well and 384-well plates). Its core function integrates programmable aspiration, dispensing, tip attachment/ejection, and multi-step protocol execution—all under intuitive touchscreen control. The system targets laboratories requiring traceable, repeatable liquid handling without the complexity or cost of fully automated robotic platforms. It bridges the gap between manual multichannel pipettes and integrated automation systems, supporting both routine QC workflows and exploratory assay development in regulated and non-regulated environments.

Key Features

• Motor-driven 96-channel pipetting head with precision-controlled Z-axis movement for consistent tip immersion depth and seal formation.
• Three interchangeable pipetting modules supporting volume ranges from 0.5 µL to 1000 µL—enabling flexible assay configuration without hardware revalidation.
• Touchscreen interface with tablet-style UI, featuring drag-and-drop protocol builder, real-time status feedback, and context-sensitive help.
• Integrated LTS (Low Retention Tip System) technology ensures reliable, low-force tip attachment and ejection—reducing operator fatigue and minimizing tip drop-off errors.
• Pre-configured operational modes: Basic (single-step transfer), Advanced (multi-step sequences), Continuous Dispense (gradient dilutions), Reverse Pipetting (for viscous or foaming liquids), and Dilution (serial or parallel).
• Protocol parameters—including fixed volumes, sequential gradients, mixing cycles, stepwise dispense increments, blow-out volume, and repeat counts—are fully customizable and storable as named presets with version timestamps.
• Tip compatibility with certified RNase-, DNase-, ATP-, and endotoxin-free consumables—available in standard, pre-sterilized, and filter-tip variants for sensitive molecular applications.

Sample Compatibility & Compliance

The BenchSmart 96 is validated for use with aqueous buffers, cell lysates, enzyme solutions, nucleic acid preparations, and protein-containing media typical in proteomics, genomics, glycobiology, and enzymology workflows. All pipetting operations adhere to ISO 8655-2 (volumetric accuracy and precision requirements for piston-operated volumetric apparatus) and support GLP-compliant documentation when paired with METTLER TOLEDO’s optional audit trail software module. While not inherently 21 CFR Part 11–compliant out-of-the-box, the system supports integration into validated environments via external electronic lab notebook (ELN) or LIMS interfaces that enforce user authentication, electronic signatures, and immutable data archiving.

Software & Data Management

The onboard operating system stores up to 100 user-defined protocols with metadata (creation date, last modified, author ID). Protocols export in CSV or XML format for external analysis or backup. Optional connectivity includes USB host port for flash drive transfers and Ethernet interface for networked firmware updates and remote diagnostics. When deployed in GxP-regulated settings, laboratories may configure external validation packages to enable full traceability: each run logs timestamp, operator ID, pipetting parameters, tip lot numbers, and error flags—supporting retrospective review during internal audits or regulatory inspections.

Applications

• High-fidelity sample normalization prior to qPCR, NGS library prep, or ELISA.
• Serial dilution series generation for dose-response curve construction in enzyme kinetics or inhibitor screening.
• Reformatting of compound libraries from source plates to assay-ready plates in early-stage drug discovery.
• Cell-based assay setup—including transfection reagent addition, cytokine titration, and viability assay reagent dispensing.
• Automated buffer exchange and washing steps in immunoaffinity purification workflows.
• Preparation of calibration standards for mass spectrometry or HPLC quantification.

FAQ

Is the BenchSmart 96 compatible with third-party tips?
Yes—mechanically compatible with ANSI/SLAS-standard 96-well tip racks; however, optimal performance and LTS functionality require METTLER TOLEDO–certified tips.
Can protocols be exported and shared across multiple instruments?
Yes—protocols save in portable XML format and retain all parameter definitions, enabling cross-instrument deployment after local calibration verification.
Does the system support dynamic volume adjustment during runtime?
No—volumes are fixed per step within a given protocol; real-time adjustment requires pausing and manual override via the touchscreen interface.
What maintenance is required for long-term accuracy?
Annual calibration verification using gravimetric methods per ISO 8655-6 is recommended; pipetting head cleaning and Z-axis lubrication are performed semiannually per the service manual.
Is remote monitoring or control possible?
Basic remote status viewing is supported via Ethernet-connected network dashboards; full remote operation requires integration with laboratory middleware or custom API extensions.