HL-1 / HL-1B / HL-1D / HL-1S Series Digital Peristaltic Pumps (Single-Channel, PTFE Pump Head Options)
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Regional Classification | Domestic (China) |
| Model | HL-2N |
| Price | USD 320 (FOB Shanghai) |
| Flow Rate Range | 0.5–900 mL/h |
| Max. Pressure | 3 kgf/cm² (≈294 kPa) |
| Dimensions | 120 × 120 × 180 mm |
| Speed Control | Stepless (HL-1), Digital Display with Mechanical Variable-Speed Drive (HL-1B/HL-1D), PTFE Pump Head (HL-1S) |
| Power Supply | AC 220 V, 50 Hz |
Overview
The HL-1, HL-1B, HL-1D, and HL-1S series are single-channel digital peristaltic pumps engineered for precision fluid delivery in laboratory-scale applications requiring chemical compatibility, flow stability, and operational simplicity. Based on the fundamental principle of peristalsis—where rollers compress a flexible tubing segment against a curved housing to generate positive displacement—the HL-series delivers pulse-free, contamination-free flow without internal valves or seals. This design ensures complete fluid isolation from pump mechanics, eliminating cross-contamination risk and enabling safe handling of aggressive solvents, biological media, and viscous aqueous solutions. All models comply with IEC 61000-6-3 (EMC emission standards) and meet basic electrical safety requirements per GB 4793.1 (Chinese equivalent of IEC 61010-1). The HL-1S variant integrates a chemically inert polytetrafluoroethylene (PTFE) pump head, certified per ASTM D4894 for fluoropolymer performance, making it suitable for extended exposure to chlorinated hydrocarbons, strong acids (e.g., concentrated HNO₃, H₂SO₄), and polar aprotic solvents such as DMF and DMSO.
Key Features
- Stepless or digitally displayed speed control (0–65 rpm), enabling fine-grained adjustment of volumetric flow rate across the full operating range
- Robust aluminum alloy chassis with reinforced mounting base for vibration-damped operation on analytical balance tables or fume hood interiors
- Standard silicone or Norprene® LFT tubing compatibility (ID 1.6 mm, OD 4.8 mm); tubing life validated at ≥500 hours under continuous 30 rpm operation
- Front-panel LED display showing real-time rotational speed (HL-1B/HL-1D/HL-1S) with ±1 rpm repeatability over 8-hour thermal stabilization period
- Overload protection circuitry automatically de-energizes motor if backpressure exceeds 3.2 kgf/cm², preventing tubing rupture or roller misalignment
- Modular pump head assembly allowing rapid field replacement without recalibration or tooling
Sample Compatibility & Compliance
These pumps accommodate a broad spectrum of sample types—including cell culture supernatants, wastewater extracts, pharmaceutical eluents, and polymer precursor solutions—provided tubing material is selected per chemical resistance guidelines (e.g., Tygon® E-3603 for ozone-rich environments; PharMed® BPT for USP Class VI compliance). The HL-1S’s PTFE pump head satisfies ISO 10993-5 cytotoxicity requirements and exhibits no detectable leachables when tested per USP under extractable screening protocols. While not certified for GMP manufacturing use, the HL-series supports GLP-aligned workflows through documented calibration traceability (NIST-traceable tachometer verification available upon request) and audit-ready operation logs when integrated with external data acquisition systems.
Software & Data Management
The HL-series operates as a standalone analog device with no embedded firmware or USB connectivity. However, analog voltage output (0–5 V DC, proportional to set speed) is provided at the rear panel for integration into SCADA or LabVIEW-controlled automation sequences. Users may log operational parameters—including cumulative runtime, average speed, and power-on cycles—via external programmable logic controllers (PLCs) or data loggers compliant with IEEE 11073-10201 (medical device communication standard). For regulated environments, raw speed/time data can be exported to CSV format using third-party DAQ software, supporting 21 CFR Part 11-compliant electronic records when paired with appropriate audit trail configuration.
Applications
- Continuous feed in column chromatography (size-exclusion, ion-exchange) where low-shear delivery preserves macromolecular integrity
- Reagent dosing in automated titration systems and environmental water quality analyzers (e.g., COD, BOD incubation modules)
- Perfusion culture in academic bioreactor setups (≤5 L working volume) requiring stable nutrient/media exchange rates
- Calibration fluid delivery in flow cytometry QC procedures and spectrophotometric blanking sequences
- Controlled solvent addition during solvent-assisted crystallization experiments in organic chemistry labs
FAQ
What tubing sizes are compatible with the HL-series pumps?
Standard configurations support inner diameters of 1.6 mm (1/16″) and 2.4 mm (3/32″) tubing; custom pump heads for 3.2 mm ID tubing are available under OEM agreement.
Is the HL-1S PTFE pump head autoclavable?
No—PTFE components are not rated for repeated steam sterilization; dry-heat validation at 121°C for 15 minutes is permissible but reduces mechanical longevity by ~40% per cycle.
Can these pumps be used in explosion-proof environments?
Not inherently; intrinsic safety certification (ATEX/IECEx) requires additional enclosure retrofitting and current-limiting modifications beyond factory specifications.
Does the HL-2N model designation indicate hardware revision or software version?
HL-2N denotes the latest mechanical revision (introduced Q2 2023), featuring upgraded gear train tolerances and revised PCB layout for improved EMC immunity—no firmware component is involved.
How frequently should calibration verification be performed?
Biannual verification using a NIST-traceable optical tachometer is recommended for GLP-conforming labs; daily speed consistency checks via stopwatch-timed 100 mL dispense are advised for routine QC use.
