LongerPump WT3000-1FB Precision Micro Gear Pump with Flow Rate & Dispensing Modes
| Brand | LongerPump |
|---|---|
| Origin | Hebei, China |
| Manufacturer Type | OEM/ODM Producer |
| Country of Origin | China |
| Model | WT3000-1FB |
| Price | Upon Request |
| Motor Type | Brushless DC Motor |
| Pump Head Material | PEEK or PTFE (configurable) |
| Flow Rate Range | 85.7–2571.4 mL/min |
| Dispensing Volume Range | 0.1 mL–999 L |
| Speed Range | 300–3000 rpm |
| Speed Resolution | 1 rpm |
| Dispensing Cycles | 1–9999 (0 = continuous) |
| Interval Time | 1 s–999 hr (0.1 s resolution) |
| Calibration Duration | 30–1800 s (1 s resolution) |
| Max Particle Size | ≤10 µm |
| Max Viscosity | ≤200 cSt |
| Control Inputs | 4–20 mA / 0.5–5 V / 1.0–10 V / 1.0–10 kHz (requires optional external control module) |
| Start/Stop Input | TTL level |
| Speed Feedback Output | 1.25–12.5 kHz (linear, isolated) |
| Status Output | Isolated TTL |
| Communication Interface | RS485 |
| Dimensions (L×W×H) | 290×207×180 mm |
| Power Supply | AC 220 V ±20% / 150 W or AC 110 V ±20% / 150 W (selectable) |
| Operating Temperature | 0–40 °C |
| Relative Humidity | <80% RH |
| Enclosure Rating | IP31 |
| Weight | 5.1–5.42 kg (varies by pump head) |
Overview
The LongerPump WT3000-1FB is a high-precision, brushless DC-driven micro gear pump engineered for laboratory-scale fluid handling where stable flow delivery, accurate volumetric dispensing, and low mechanical perturbation are critical. Utilizing positive displacement via precision-machined stainless steel or chemically resistant polymer gear sets (PEEK or PTFE), the WT3000-1FB operates on the fundamental principle of intermeshing gears rotating within a sealed cavity to displace fluid with minimal slippage—ensuring high volumetric efficiency across a broad viscosity range (up to 200 cSt) and particulate-laden media (particles ≤10 µm). Its dual operational modes—continuous flow rate control and programmable dispensing—make it suitable for applications demanding either steady-state perfusion or repeatable batch delivery under defined volume, interval, and cycle parameters. Designed for integration into analytical instrumentation, bioprocessing workstations, and automated sample preparation systems, the pump features an industrial-grade RS485 interface, analog/digital I/O for PLC or SCADA synchronization, and robust thermal and torque protection mechanisms.
Key Features
- Brushless DC motor drive ensures extended service life, consistent torque output, and electromagnetic compatibility in sensitive lab environments.
- Modular pump head architecture supports interchangeable MG/MS-series heads (MS204, MS209, MS213), enabling optimization for pressure (up to 1.4 MPa), flow capacity (85.7–2571.4 mL/min), and chemical compatibility.
- Low-noise (<55 dB(A)) and low-pulsation operation (<±1.5% peak-to-peak flow variation) achieved through precision gear geometry, balanced rotor dynamics, and damping housing design—critical for HPLC auxiliary delivery, cell culture media perfusion, and optical detection setups.
- 128×32 backlit LCD display with intuitive membrane keypad and rotary encoder enables local configuration of dispensing volume (0.1 mL–999 L), interval timing (1 s–999 hr), cycle count (1–9999 or infinite), and real-time speed/flow status.
- Integrated auto-calibration function allows user-defined calibration duration (30–1800 s) to compensate for fluid density, viscosity, and system backpressure—ensuring traceable accuracy per ISO 8573-1 and ASTM D3427 guidelines.
- Torque-limiting decoupling protection activates when load exceeds rated threshold, preventing gear damage during dry-run or blockage events—supporting GLP-compliant unattended operation.
Sample Compatibility & Compliance
The WT3000-1FB accommodates a wide spectrum of laboratory fluids, including aqueous buffers, organic solvents (e.g., acetonitrile, IPA), glycerol-water mixtures, cell suspensions, and low-concentration slurries. With PEEK pump heads rated for temperatures from −45 °C to +120 °C and PTFE variants up to +50 °C, it meets material compatibility requirements for USP Class VI and FDA 21 CFR 177.2440 compliant fluid paths. The pump’s IP31-rated enclosure satisfies basic environmental protection for indoor laboratory use per IEC 60529. While not certified for hazardous area operation, its isolated TTL and analog I/O interfaces comply with IEC 61000-6-2/6-3 immunity/emission standards. All firmware and parameter storage retain settings after power loss, supporting audit-ready operation in regulated QC/QA workflows aligned with ISO/IEC 17025 and GMP Annex 11 principles.
Software & Data Management
RS485 Modbus RTU protocol enables seamless integration with LabVIEW, Python-based control suites, or industrial HMIs for centralized fleet management. Optional external control modules support 4–20 mA, 0–5 V, or pulse-frequency inputs for analog setpoint modulation, while isolated TTL outputs provide real-time speed and run-status feedback for closed-loop validation. The pump logs all parameter changes with timestamped history (retained across reboots), fulfilling basic electronic record requirements under FDA 21 CFR Part 11 when deployed with validated host software. No proprietary driver or cloud dependency is required—configuration remains fully accessible via front-panel interface or serial command set documented in the open API manual.
Applications
- Automated liquid handling in analytical chemistry: mobile phase delivery for preparative LC, reagent dosing in titration systems, and standard solution dispensing for ICP-MS calibration.
- Biotechnology workflows: controlled feeding in microbial fermentation reactors, perfusion of 3D tissue scaffolds, and buffer exchange in tangential flow filtration (TFF) skids.
- Materials science: metered delivery of precursor solutions in sol-gel synthesis, inkjet-compatible formulation transfer, and rheological modifier dosing in polymer dispersion studies.
- Environmental testing: precise spiking of certified reference materials into wastewater samples, sequential extraction in solid-phase leaching protocols, and field-deployable peristaltic-free sampling pumps.
- Pharmaceutical development: excipient addition in hot-melt extrusion trials, solvent recovery loops in lyophilization condensate management, and fill-volume verification in vial filling line R&D.
FAQ
What pump head options are compatible with the WT3000-1FB?
The WT3000-1FB accepts MG/MS204, MG/MS209, and MG/MS213 series pump heads—each available with PEEK or PTFE gears depending on temperature, pressure, and chemical resistance requirements.
Can the pump handle abrasive or particulate-containing fluids?
Yes—provided suspended particles are ≤10 µm in diameter and do not exceed 5% w/v concentration; PEEK heads are recommended for enhanced wear resistance.
Is flow calibration traceable to national standards?
Calibration is user-performed using gravimetric or volumetric methods per ISO 4064-2; the pump stores calibration coefficients but does not include NIST-traceable certificate—third-party certification is available upon request.
Does the WT3000-1FB support remote monitoring in a networked lab environment?
Yes—via RS485 daisy-chaining (up to 32 units per bus) and Modbus RTU polling; integration with MQTT or OPC UA requires an intermediary gateway.
What safety protections are built into the drive electronics?
Overcurrent, overtemperature, stall detection, and automatic torque decoupling are implemented at the hardware level; no software-based fail-safes are relied upon for critical shutdown functions.
