Gilson 333 Pump Preparative HPLC Master Pump with Control Display and H3M Heads

Gilson 333-H3M Preparative HPLC Master Pump is a dual-piston, high-flow solvent delivery system equipped with an integrated front-panel control display, built-in pressure transducer, and high-pressure static mixer. Engineered with H3M pump heads, it provides pulse-free, precise mobile phase delivery for normal- and reverse-phase preparative chromatography and can act as a master controller for binary or ternary gradient systems.

• MPN / Catalog Model: MPN 38103331; Model 333-H3M (333/334 Preparative HPLC Pump Series).
• Manufacturer & Line: Gilson, Inc. — Preparative Liquid Chromatography Systems.
• Condition & Packaging / Form Factor: Used, tested to be in excellent operating condition; single benchtop stackable chassis measuring 26 × 41 × 50.7 cm (10.2 × 16.2 × 20 in.) with a net weight of 33.1 kg (73 lbs.).
• Material Construction / Metallurgy: Wetted fluid path constructed of 316L stainless steel, sapphire pistons, ruby/sapphire check valves, ceramic, titanium, UHMWPE, PTFE, FEP, PCTFE, and ETFE for broad chemical resistance across organic and aqueous mobile phases.
• Technical Specifications & Tolerances: Flow rate range of 0.2–200 mL/min (single pump) or 2–200 mL/min (multi-pump gradient); operating pressure of 5–210 bar (70–3,040 psi); compressibility compensation 0–2,000 mbar^-1; operating temperature 10°C to 40°C; universal power input 90–260 VAC, 50/60 Hz.
• Hardware & System Compatibility: Features a 40-character, 8-line LCD front panel, integrated PPmm (pressure sensor, static mixer, and purge valve), and outlet filter. Interfaces with Gilson 334 secondary pumps, 811D dynamic mixers, UV/VIS detectors, and TRILUTION LC software via GSIOC, digital I/O, and relay ports.
• Primary Application: Isocratic and multi-solvent gradient preparative HPLC, compound isolation, natural product purification, and scale-up liquid chromatography workflows.