DWK Wheaton Roller Bottle Top Drive 5 x 11 6" Spacing 55 positions

DWK Life Sciences (Wheaton) 349000UL Top-Drive Roller Bottle Apparatus (11 Decks, 55 Bottle Capacity). An industrial-scale, multi-tier cell culture roller production system engineered to deliver continuous, low-shear rotational agitation for large-scale adherent mammalian cell culture, viral vaccine manufacturing, and biopharmaceutical production.

Used; excellent condition; all 55 positions operating smoothly. See working video at this link.

• MPN / Catalog Model: 349000UL (Wheaton Standard Production Roller Apparatus Series)
• Manufacturer & Line: DWK Life Sciences (Wheaton) / Bioprocess Roller Culture Systems
• System Configuration & Capacity: Configured with 11 vertical tiered decks, each engineered to hold 5 roller bottles, providing a total high-density capacity of 55 roller bottles simultaneously
• Drive Mechanism & Top-Drive Architecture: Features an overhead top-mounted motor and drive assembly; elevating the electro-mechanical drive components protects critical motor electronics from floor spills, washdown fluids, and low-lying moisture in production suites
• Rotational Speed & Torque Transmission: Precision speed regulation typically spanning 0.1 to 4.0 RPM (or 0.25 to 5.0 RPM depending on drive ratios), utilizing synchronized heavy-duty timing belts and positive-traction pulleys to maintain uniform rotation across all 11 tiers without slippage
• Bottle Compatibility & Dimensions: Accepts standard plastic disposable and reusable glass bioprocess roller bottles (nominally 110 mm to 120 mm outer diameter, up to 510–570 mm in length), including standard 850 cm² to 2,125 cm² expanded-surface vessels
• Chassis & Mechanical Construction: High-strength, corrosion-resistant extruded aluminum upright frame and crossbars designed to support high static and dynamic fluid loads while maintaining tight vertical alignment across all tiers
• Roller Construction & Traction: Chemical-resistant, non-slip elastomer/neoprene-sheathed drive and idler rollers engineered with anti-crawl guides to ensure positive grip and prevent longitudinal bottle migration during long-term continuous rotation
• Environmental & Incubation Compatibility: Engineered for continuous 24/7 duty cycles inside warm rooms, walk-in environmental chambers, and humidity-controlled incubator suites (rated for continuous operation up to 40°C)
• Mobility & Placement: Outfitted with heavy-duty, smooth-rolling swivel casters with integrated dual-locking foot brakes, allowing effortless positioning and secure docking within production suites
• Electrical & Certification Standards: 115–120 VAC, 50/60 Hz single-phase AC operation; UL listed ("UL" suffix specification) with built-in soft-start acceleration profiles to prevent fluid surge and cellular detachment
• Primary Application: Large-scale anchorage-dependent mammalian cell proliferation (e.g., Vero, CHO, BHK-21, MRC-5), viral vector propagation for vaccine production, monoclonal antibody harvesting, recombinant protein expression, and cellular biomass expansion