ROCKER Rocker300C-VF12 Solvent Filtration System
| Brand | ROCKER |
|---|---|
| Origin | Taiwan |
| Model | Rocker300C-VF12 |
| Vacuum Level | –630 mmHg |
| Flow Rate | 20 L/min |
| Motor Power | 60 W |
| Noise Level | 50.0 dB(A) |
| Dimensions (L×W×H) | 28.5 × 13.5 × 20.4 cm |
| Net Weight | 4.1 kg |
| Filter Funnel Capacity | 300 mL |
| Collection Bottle Capacity | 1000 mL |
| Membrane Diameter | 47 mm |
| Effective Filtration Area | 9.6 cm² |
| Tubing ID | 5/16 inch |
| Certifications | CE |
Overview
The ROCKER Rocker300C-VF12 Solvent Filtration System is an integrated, oil-free vacuum filtration platform engineered for high-purity solvent preparation and sample pre-treatment in analytical and life science laboratories. It operates on a diaphragm-based vacuum generation principle—eliminating lubricating oil entirely—which ensures zero oil vapor contamination, consistent vacuum stability, and compliance with stringent purity requirements for HPLC, GC, and atomic absorption (AA) mobile phase preparation. The system combines the corrosion-resistant Rocker300C PTFE-coated diaphragm vacuum pump with the VF12 borosilicate glass filtration assembly, enabling direct filtration into standard 1000 mL serum bottles without intermediate transfer. Its compact footprint (28.5 × 13.5 × 20.4 cm), low acoustic signature (50.0 dB[A]), and built-in vacuum regulation valve support unattended operation in shared lab environments while maintaining reproducible filtration performance across organic solvents including acetonitrile, methanol, THF, chloroform, and ethyl acetate.
Key Features
- Oil-free diaphragm pump design with PTFE-coated internal components for broad chemical resistance against aggressive organic solvents and acids
- Integrated vacuum regulation valve for precise control of suction pressure during sensitive filtration steps (e.g., particulate-sensitive membrane integrity testing)
- Overheat protection circuit and inlet air filter to extend pump service life and ensure operational safety under continuous duty cycles
- VF12 filtration assembly constructed entirely from Class A borosilicate glass (funnel upper cup, base, and serum bottle), ground-glass fritted membrane support, anodized aluminum clamp, and medical-grade silicone stopper (size #8)
- Direct serum-bottle coupling architecture: filtration funnel mounts directly onto 1000 mL borosilicate serum bottles via PP adapter—minimizing exposure, cross-contamination risk, and post-filtration handling
- CE-marked per Directive 2014/35/EU (Low Voltage Directive) and 2014/30/EU (EMC Directive), supporting laboratory compliance with ISO/IEC 17025 pre-analytical workflow validation
Sample Compatibility & Compliance
The Rocker300C-VF12 is validated for use with common HPLC- and GC-grade solvents, including but not limited to methanol, ethanol, isopropanol, acetonitrile, tetrahydrofuran (THF), dichloromethane, chloroform, and hexane. Its PTFE-coated pump head and fluoropolymer-sealed valves resist swelling, degradation, or outgassing when exposed to halogenated and polar aprotic solvents. All wetted parts in the VF12 assembly—including the 47 mm diameter fritted glass support (9.6 cm² effective area), borosilicate funnel, and serum bottle—are autoclavable (121 °C, 20 min) and compatible with USP Class VI-certified filtration membranes (e.g., nylon, PVDF, PTFE). The system supports GLP-aligned documentation through traceable component lot numbers and conforms to ASTM D854 (standard test method for specific gravity of soil solids) and ISO 4022 (liquid filtration terminology) definitions for vacuum-assisted microfiltration.
Software & Data Management
As a benchtop mechanical filtration system, the Rocker300C-VF12 does not incorporate embedded software or digital interfaces. However, its design supports full integration into regulated laboratory environments: vacuum output stability (±3% over 8-hour operation at –630 mmHg) enables reliable correlation with gravimetric or turbidimetric endpoint detection systems. Laboratories implementing 21 CFR Part 11–compliant workflows may pair the system with external electronic lab notebooks (ELNs) or LIMS platforms to log pump runtime, filtration duration, membrane batch IDs, and solvent lot numbers—ensuring full auditability of pre-analytical steps. Maintenance records—including replacement of the included inlet air filter and annual verification of vacuum decay rate (<5 mmHg/min at sealed condition)—are retained per internal SOPs aligned with ISO 9001:2015 Clause 7.5.3.
Applications
- Preparation of particle-free mobile phases for reversed-phase and ion-pair HPLC analysis
- Purification of solvents used in GC sample introduction systems (e.g., syringe filters, purge-and-trap modules)
- Clarification of cell culture media, enzyme solutions, and antibody preparations prior to sterile filtration
- Removal of particulates and insoluble residues from synthetic reaction mixtures prior to chromatographic separation
- Standardization of filtration protocols across multi-site QC laboratories under harmonized SOPs (e.g., ICH Q5A, USP )
- Support of ASTM E2904–22 (Standard Practice for Validation of Analytical Methods for Residual Solvent Quantitation) by ensuring consistent filtrate clarity and absence of filter extractables
FAQ
Is the Rocker300C-VF12 suitable for filtering strong acids such as concentrated HCl or HNO₃?
Yes—the PTFE-coated pump head and fluoropolymer valve seals provide resistance to concentrated mineral acids; however, direct contact between acid vapors and the borosilicate glass VF12 assembly must be avoided via upstream condensation traps.
Can I use non-47 mm membranes with the VF12 funnel?
No—the funnel’s fritted glass support is dimensionally optimized for 47 mm circular membranes; off-size membranes will compromise seal integrity and cause bypass leakage.
Does the system include validation documentation for GMP environments?
ROCKER provides a Certificate of Conformance (CoC) with each unit, listing material certifications (e.g., DIN ISO 3585 borosilicate glass), CE marking details, and factory-tested vacuum/flow specifications—sufficient for IQ/OQ protocol development.
What is the recommended maintenance interval for the Rocker300C pump?
Under normal usage (≤4 h/day), inspect the inlet air filter quarterly; replace every 12 months. Diaphragm replacement is typically required after 15,000 operating hours—ROCKER offers calibrated replacement kits with traceable calibration certificates.
Is the VF12 assembly compatible with vacuum ovens or freeze dryers?
No—the VF12 is designed exclusively for ambient-pressure filtration under vacuum; it lacks pressure-rated seals and is not rated for positive-pressure or thermal cycling applications.
