Drummond Pipet-Aid Controller with TC Nosepiece

Drummond Original Pipet-Aid Pipette Controller – 110V, with TC Filter Nosepiece (MPN: 4-000-111-TC)

The Drummond 4-000-111-TC is a commercial-grade, AC-powered benchtop pipette controller engineered to convert standard laboratory pipettes into high-precision, hand-operated liquid dispensers. Operating on a stable 110V electrical line via a quiet, long-life vacuum/pressure pump matrix, this foundational instrument is optimized for high-volume workflows within cleanrooms and laminar flow hoods. This specific model comes factory-configured with a specialized Tissue Culture (TC) self-locking nosepiece housing. This architecture accommodates both glass and plastic serological pipettes ranging from 1 mL up to 100 mL, providing proportional button-depression mechanics that grant users seamless, micrometric fluid aspiration and blow-out velocities.

Technical Performance and Design

• Dual-Action Proportional Valves: Features independent, spring-loaded buttons that control dual internal precision check-valves. Fluid speed is fully proportional to thumb displacement—the further a button is depressed, the faster the internal vacuum or pressure manifold moves the liquid column.

• Self-Locking TC Filter Nosepiece: The heavy-duty "TC" designated nosepiece utilizes a unique mechanical framework that locks tight against accidental twists. It houses a specialized dual-action 0.8 µm hydrophilic/hydrophobic filter barrier that blocks particles down to 0.1 µm, preventing fluid trackback from fouling the master handle lines.

• Over-Pipetting Fluid Lockout: If a technician accidentally over-draws fluid past the pipette column, the internal self-locking filter automatically seals upon contact with the aqueous phase. This immediate physical blockage arrests all vacuum flow to protect the internal pump, requiring a rapid filter swap to resume work.

• Autoclavable Fluid-Path Components: Both the structural nosepiece shell and the interior high-grip silicone rubber pipette insert can be detached and repeatedly autoclaved at 121°C to completely eradicate microbial carryover or cross-contamination.

Product Specifications

• Catalog Number / MPN: 4-000-111-TC (4000111TC)

• Manufacturer: Drummond Scientific

• Product Family: Original Pipet-Aid Series

• Power Requirements: 110V/120V AC, 50/60 Hz (Standard Wired 3-Prong US Power Cord)

• Pipette Size Compatibility: Accepts 1 mL to 100 mL standard glass or plastic serological pipettes

• Nosepiece Type: Tissue Culture (TC) Filtered Nosepiece (Utilizes 4-000-051 self-locking replacement filters)

• System Configuration: Separate benchtop motor/pump enclosure connected to the handle via flexible clear vacuum/pressure hosing

Key Benefits & Applications

• Laminar Flow Hood Cultivation: The preferred baseline instrument for rigorous cell culture, tissue expansion, and media aliquoting inside biological safety cabinets, as the corded handle minimizes internal battery heat emission.

• Biohazard & Containment Processing: The integrated 0.1 µm dual-membrane filter barrier makes it an exceptionally safe vehicle for handling delicate viral matrices, bacterial suspension lines, and radioactive sample volumes.

• Zero-Downtime Bench Lifespan: Unlike cordless portable units that fail mid-shift due to battery fatigue, this direct-wired 110V motor drive guarantees continuous, identical pressure profiles for unlimited running blocks.

• Chemical Spill Resistance: The rugged handle housing and silicone internals are specifically constructed to tolerate prolonged exposure to standard laboratory cleaning agents, including 70% Isopropyl Alcohol and dilute sodium hypochlorite washes.

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