ROCKER Rocker400–SFC142 Continuous Vacuum Filtration System

Overview

The ROCKER Rocker400–SFC142 Continuous Vacuum Filtration System is an engineered solution for high-throughput, contamination-sensitive liquid clarification and purification in life science laboratories and bioprocessing environments. It integrates a maintenance-free, oil-free piston vacuum pump (Rocker400) with a gravity-assisted, clamp-free continuous filtration manifold (SFC142), enabling uninterrupted processing of large-volume samples without manual intervention or intermediate transfer steps. The system operates on the principle of controlled vacuum-driven flow across a fixed-diameter membrane (142 mm), where pressure differential—regulated via an integrated vacuum control valve—ensures consistent filtration kinetics while minimizing shear stress on sensitive biological matrices. Its design eliminates oil-based lubricants, thereby preventing hydrocarbon vapor contamination of filtrates—a critical requirement for HPLC mobile phase preparation, cell culture supernatant clarification, and sterile buffer processing. With a maximum absolute vacuum of 99 mbar and flow rates up to 37 L/min (60 Hz), the system delivers reproducible performance across diverse viscosity ranges and particulate loads.

Key Features

• Oil-free piston vacuum pump (Rocker400) with built-in thermal overload protection—eliminates oil mist generation and reduces long-term maintenance requirements.
• SFC142 stainless steel filtration funnel constructed from electropolished AISI 304 stainless steel; compliant with USP Class VI and ISO 10993-5 for biocompatibility.
• Clamp-free, gravity-assisted quick-lock coupling mechanism—enables secure, leak-tight assembly of filter cup, GL45 adapter, and receiving vessel in under 10 seconds without tools or clamps.
• Integrated float-ball anti-splash safety device prevents overflow into the vacuum line during unattended operation.
• Standardized沉头 (submerged suction tip) ensures complete liquid drawdown with minimal residual volume (<0.5 mL retained in funnel base after filtration).
• Vacuum regulation valve allows precise adjustment of applied vacuum (20–99 mbar abs.) to optimize filtration speed versus membrane integrity for delicate applications such as protein-containing solutions or heat-labile extracts.
• CE-marked, RoHS-compliant, and rated IP30 for laboratory indoor use; meets IEC 61000-6-3 EMC standards.

Sample Compatibility & Compliance

The Rocker400–SFC142 accommodates standard 142 mm diameter membranes—including mixed cellulose ester (MCE), polyethersulfone (PES), nylon, and PVDF—enabling broad compatibility with aqueous, organic, and mildly acidic or alkaline solutions (pH 2–12). Its wetted path components (funnel body, lid gasket, tubing, and GL45 adapter) are certified non-pyrogenic and extractable-free per USP and . The system supports Good Laboratory Practice (GLP) and Good Manufacturing Practice (GMP)-aligned workflows through traceable vacuum settings, consistent dwell time control, and compatibility with audit-ready documentation protocols. While not intrinsically compliant with FDA 21 CFR Part 11, the system’s deterministic mechanical operation and absence of embedded software allow seamless integration into validated environments when paired with external electronic lab notebooks (ELNs) or LIMS platforms.

Software & Data Management

The Rocker400–SFC142 is a hardware-only, analog-operated system with no embedded firmware, touchscreen interface, or digital data logging capability. This architecture ensures electromagnetic compatibility in electromagnetically sensitive environments (e.g., near NMR spectrometers or mass spectrometers) and simplifies qualification under ISO/IEC 17025 or ISO 13485 frameworks. All operational parameters—including vacuum setpoint, runtime, and flow rate—are manually monitored using external calibrated gauges or inline flow meters. For regulated environments requiring electronic record retention, integration with third-party pressure transducers (e.g., Honeywell ASDX series) and programmable logic controllers (PLCs) is supported via 0–10 V or 4–20 mA analog outputs (optional accessories). No proprietary drivers or cloud connectivity are implemented.

Applications

• Clarification of wine must and juice prior to bottling or analytical testing (ASTM D7277-19 compliant sample prep).
• Pre-filtration and degassing of HPLC and UHPLC mobile phases to prevent column clogging and baseline drift.
• Removal of bacteria, yeast, and particulates from cell culture media, fermentation broths, and vaccine intermediates (validated with 0.22 µm PES membranes).
• Routine sterilization of buffers, saline solutions, and reagent-grade water in QC/QA labs adhering to USP particulate matter testing guidelines.
• Concentration and diafiltration support for downstream bioprocessing when coupled with tangential flow filtration (TFF) systems.
• Environmental water analysis—pre-filtration of surface water, wastewater, and drinking water samples prior to ICP-MS or GC-MS analysis.

FAQ

What is the maximum recommended operating temperature for the SFC142 funnel?
The SFC142 is rated for continuous operation at ambient temperatures up to 40 °C. Short-term exposure to liquids up to 60 °C is permissible, provided the vacuum pump remains within its specified ambient operating range (10–35 °C).
Can the Rocker400 pump be used with corrosive solvents such as acetone or chloroform?
No. The Rocker400 is designed exclusively for aqueous and mild organic solutions (e.g., ethanol, isopropanol ≤30% v/v). Exposure to halogenated or strongly polar aprotic solvents may degrade internal elastomers and compromise seal integrity.
Is the GL45 adapter compatible with non-ROCKER branded serum bottles?
Yes—the adapter conforms to ISO 8362-1 GL45 thread specifications and is mechanically compatible with all major manufacturers’ GL45 vessels (e.g., Wheaton, Kimble, Thermo Fisher).
Does the system include validation documentation for IQ/OQ protocols?
ROCKER provides a Factory Acceptance Test (FAT) report with each unit, including vacuum stability curves and flow calibration data. Full Installation Qualification (IQ) and Operational Qualification (OQ) templates are available upon request for integration into internal validation programs.
How often does the Rocker400 require service or replacement parts?
Under normal laboratory use (≤8 hrs/day, 5 days/week), the Rocker400 requires no scheduled maintenance over its 2-year warranty period. The piston seal kit (part #RK-PSK-01) is recommended for replacement every 12,000 operating hours or after 5 years, whichever occurs first.