Cole-Parmer Model 75211-12 Integrated Peristaltic Pump Drive

Overview

The Cole-Parmer Model 75211-12 Integrated Peristaltic Pump Drive is an engineered solution for precise, repeatable, and maintenance-free fluid handling in laboratory, pilot-scale, and light industrial environments. Based on the principle of peristalsis—where rollers compress flexible tubing to generate positive displacement—the drive delivers pulseless flow without fluid contact with mechanical components, eliminating contamination risk and enabling safe transfer of aggressive, viscous, shear-sensitive, or sterile media. Its compact, self-contained architecture integrates motor, speed controller, and front-panel interface into a single robust chassis, optimized for benchtop integration and long-term reliability under continuous operation. Designed for compatibility with Micropump A-Clamp-style pump heads (sold separately), it supports rapid head interchangeability and tube retention without tools, aligning with Good Laboratory Practice (GLP) and ISO/IEC 17025-compliant workflows where traceability and operational consistency are critical.

Key Features

• 100:1 speed adjustment range (50–5000 rpm) enables fine-grained control over volumetric flow rates from 0.85 to 5850 mL/min—ideal for applications requiring both low-flow precision (e.g., reagent dosing) and high-throughput transfer (e.g., buffer circulation).
• Single-turn potentiometer for intuitive, tactile speed setting—minimizing operator error and supporting reproducible method execution across shifts and users.
• Non-volatile speed memory: Independent power switch retains the last-set rotational speed upon power cycling; front-panel LED confirms operational status without requiring system reboot.
• Remote control capability via rear-mounted DB9 connector (TTL-level compatible) allows integration into automated systems, PLC-controlled processes, or centralized lab management platforms for start/stop command sequencing.
• IP22-rated enclosure provides protection against vertically falling drips and solid objects >12.5 mm—suitable for standard laboratory environments with controlled humidity and no direct washdown requirements.
• Thermally managed PMDC motor ensures stable torque output across the full speed range, with continuous-duty rating at ambient temperatures up to 40 °C.

Sample Compatibility & Compliance

The 75211-12 drive is compatible with a wide range of elastomeric tubing materials—including silicone, Viton®, Tygon® LFL, and Pharmapure®—enabling validated use with aqueous solutions, organic solvents, acids, bases, and biological buffers. When paired with A-Clamp pump heads and appropriate tubing, it meets material compatibility requirements outlined in USP and for extractables and leachables testing. While not certified for medical device manufacturing, its design supports GMP-aligned documentation practices: speed settings are manually recorded, and the absence of firmware-based configuration eliminates need for 21 CFR Part 11-compliant audit trails—making it suitable for non-regulated R&D, QC screening, and preparatory workflows. CE marking applies to 230 VAC variants; UL/cUL recognition covers both voltage models for North American electrical safety compliance.

Software & Data Management

This is a hardware-only, analog-controlled drive with no embedded microprocessor, firmware, or digital communication protocols (e.g., RS-485, Modbus, USB). All operational parameters are set locally via front-panel controls; no software installation, driver dependencies, or cloud connectivity are required. Data logging must be performed externally using calibrated flow meters, data acquisition systems, or time-stamped manual records. This architecture reduces validation burden in regulated labs where software qualification would otherwise be mandatory, while ensuring deterministic behavior and immunity to firmware corruption or cybersecurity vulnerabilities.

Applications

• Continuous filtration and diafiltration in protein purification workflows
• Controlled chemical dosing in pH-stat or redox titration systems
• Media perfusion in cell culture bioreactors and organ-on-chip platforms
• Reagent delivery in automated sample preparation stations (e.g., SPE, dilution, derivatization)
• Calibration fluid circulation in analytical instrument maintenance routines (HPLC, ICP-MS)
• Low-shear transfer of fragile emulsions, nanoparticles, or blood-derived products

FAQ

Is the 75211-12 compatible with all Cole-Parmer A-Clamp pump heads?
Yes—it is mechanically and electrically matched to the full family of Micropump A-Clamp heads (e.g., 75211-01, 75211-02, 75211-05), supporting tube inner diameters from 0.13 to 6.4 mm.
Can this drive operate with third-party tubing or pump heads?
Only A-Clamp–compatible heads with standardized mounting geometry and roller alignment will ensure proper occlusion and longevity; non-Cole-Parmer tubing may be used if dimensionally and chemically compatible, but performance validation remains the user’s responsibility.
Does the drive include overload or dry-run protection?
No—this is a basic drive unit without integrated current sensing or flow feedback; external safeguards (e.g., pressure switches, flow sensors) must be added for mission-critical or unattended operation.
What is the expected service life of the PMDC motor under continuous duty?
Rated for >10,000 hours of continuous operation at nominal load and ambient temperature ≤40 °C, assuming proper ventilation and avoidance of mechanical binding or excessive backpressure.
Are replacement fuses or service manuals available directly from Cole-Parmer?
Yes—technical documentation, fuse specifications (3AG, 1 A slow-blow), and OEM spare parts (e.g., potentiometer, LED assembly) are accessible through authorized Cole-Parmer support channels with valid model and serial number verification.