LongerPump CM100-2A & WX10 Compact Dual-Channel Peristaltic Pump

Overview

The LongerPump CM100-2A & WX10 is a compact, dual-channel peristaltic pump engineered for precision fluid handling in analytical laboratories, bioprocessing workflows, and small-scale chemical synthesis setups. It operates on the principle of positive displacement via occlusion—rotating rollers compress elastomeric tubing against a rigid housing to generate unidirectional flow without internal valves or seals. This design ensures complete fluid isolation, eliminating cross-contamination risk and enabling safe transfer of aggressive, shear-sensitive, or sterile media. The system integrates the CM100-2A controller with the WX10-14-A pump head, featuring a 4-roller configuration optimized to minimize pulsation amplitude while maintaining mechanical durability and long-term flow stability. Its footprint (220 × 115 × 135 mm) and weight (1.25 kg) make it suitable for benchtop integration in fume hoods, biosafety cabinets, or modular instrument racks.

Key Features

• High-resolution speed control: Adjustable from 0.00 to 100.0 rpm with resolution of 0.01 rpm below 10 rpm and 0.1 rpm above—enabling fine-tuned flow rate modulation across low- and mid-range applications.
• Dual operational modes: Continuous run mode with cumulative runtime logging (0.1 s–999 h), and programmable timed dispensing with adjustable on/off intervals (0.1 s–999 h).
• Flexible control interface: Front-panel membrane keys for start/stop, direction reversal, full-speed activation, and parameter configuration; optional footswitch input for hands-free operation during repetitive or glove-required tasks.
• Robust mechanical architecture: WX10-14-A pump head constructed with ABS housing and POM (polyoxymethylene) rollers—resistant to wear, chemical exposure, and thermal drift under continuous duty cycles.
• Low-noise performance: Optimized gear train and motor damping reduce acoustic emissions to <45 dB(A) at 1 m distance—critical for shared lab environments and noise-sensitive applications such as cell culture media perfusion.
• Parameter retention: All user-defined settings—including speed, direction, mode, and timer values—are retained after power cycling via non-volatile memory.
• Full-speed override function: One-touch activation for rapid tubing priming, line purging, or emergency flow initiation without reconfiguration.

Sample Compatibility & Compliance

The CM100-2A & WX10 accommodates standard silicone or fluoropolymer tubing with inner diameters up to 3.17 mm and wall thicknesses between 0.8 mm and 1.0 mm. This compatibility supports common laboratory-grade peristaltic tubing (e.g., PharMed BPT, Tygon® LFL, and Masterflex® LS-35) used in GLP-compliant sample preparation, HPLC mobile phase delivery, and fermentation feed systems. While not certified for medical device use, the pump meets IEC 61010-1 safety requirements for laboratory electrical equipment and conforms to electromagnetic compatibility standards EN 61326-1. Its IP31 rating provides protection against vertically falling water droplets and solid objects >2.5 mm—suitable for controlled indoor laboratory conditions but not wet or washdown environments.

Software & Data Management

The CM100-2A operates as a standalone unit with no embedded software stack or network connectivity. All operational parameters are managed locally via the segment LCD display and tactile keypad. No proprietary drivers, firmware updates, or cloud synchronization are required. For traceability in regulated environments, users may document operational settings manually or integrate the pump into external PLC-controlled sequences via its dry-contact footswitch input. While the device does not support FDA 21 CFR Part 11 electronic signatures or audit trails natively, its deterministic behavior, stable calibration profile, and parameter persistence support validation protocols under ISO/IEC 17025 and ASTM D3418 for routine flow consistency verification.

Applications

• Automated reagent dispensing in ELISA, PCR setup, and microplate washing systems.
• Continuous feeding of nutrient solutions or pH-adjusting agents in bioreactors and chemostats.
• Low-flow solvent delivery in preparative chromatography and extraction modules.
• Controlled dosing of catalysts or initiators in polymerization reaction monitoring.
• Perfusion of primary neuronal cultures or organ-on-chip platforms requiring pulse-dampened flow profiles.
• Calibration fluid transport in conductivity or turbidity sensor verification rigs.

FAQ

What tubing sizes are compatible with the WX10-14-A pump head?

Tubing with inner diameter ≤3.17 mm and wall thickness between 0.8 mm and 1.0 mm is recommended for optimal occlusion and service life.
Can the pump be operated continuously for extended periods?

Yes—the motor and gearbox are rated for continuous duty at ambient temperatures up to 40 °C, provided ventilation is unobstructed and tubing is regularly inspected for fatigue.
Is the direction of rotation programmable?

Yes—forward (clockwise) and reverse (counterclockwise) rotation can be selected via front-panel controls or footswitch command.
Does the pump support external triggering or analog control signals?

No—the CM100-2A accepts only digital dry-contact input via the footswitch port; it lacks analog voltage/current inputs or RS-232/USB interfaces.
How is flow rate calibrated or verified?

Flow accuracy depends on tubing elasticity, compression geometry, and rotational speed. Users should perform gravimetric or volumetric calibration using certified measuring cylinders and stopwatch timing under actual operating conditions.