The KNAUER AZURA P 6.1L is a high-precision analytical HPLC pump designed for accurate and reproducible solvent delivery in both HPLC and UHPLC applications.
The pump combines essential features of a modern pumping system, including low pulsation, high pressure capability, precise gradient formation, and flexible configuration. It is available in both HPG (high-pressure gradient) and LPG (low-pressure gradient) versions, with a flow range up to 50 mL/min.
The system uses a dual serial piston mechanism with active pulsation compensation, ensuring excellent flow stability under all conditions. A low-dead-volume microfluidic mixer enables efficient and precise solvent mixing.
Different pump heads are available:
- up to 10 mL/min at 862 bar
- up to 5 mL/min at 1000 bar
Optional configurations include biocompatible materials (PEEK, ceramic, titanium) and specialized setups for normal phase applications (e.g., hexane, heptane).
Key Features
- High-precision analytical HPLC/UHPLC pump
- Pressure up to 1000 bar
- Flow rates up to 50 mL/min
- Dual piston system with low pulsation
- Active pulsation compensation
- HPG and LPG gradient configurations
- Microfluidic mixer (50–600 µl)
- RFID pump head detection
- Optional degasser
- Biocompatible configurations available
- Robust operation with demanding solvents
Technical Specifications
Solvent Delivery
- Pump type: analytical HPLC pump
- Mechanism: dual serial piston
- Flow range: 0.001 – 50 mL/min
- Max pressure: up to 1000 bar
- Flow accuracy: ± 0.25%
- Precision: ≤ 0.04% RSD
Gradient
- Range: 0–100% (0.1% steps)
- HPG accuracy: ± 0.3%
- HPG precision: < 0.1% RSD
- LPG accuracy: ± 0.3% to ± 2%
- LPG precision: < 0.5% RSD
Mixing
- Microfluidic mixer
- Volumes: 50 / 100 / 200 / 400 / 600 µl
- Low dead volume
Degasser (optional)
- 2–4 channels
- Max flow: 10 mL/min per channel
- Residual O₂: < 0.5 ppm
- Membrane: fluoropolymer
Materials
- PEEK, Tefzel®, Systec AF
- Optional biocompatible materials (titanium, ceramic)
Control & Communication
- LAN, analog inputs
- Event outputs (TTL, relay)
- Optional mobile control
- RFID pump head detection
Operating Conditions
- Temperature: 4–40 °C
- Humidity: < 90% non-condensing
Dimensions & Power
- Dimensions: 361 × 208 × 523 mm
- Weight: 14.1 kg
- Power supply: 100–240 V, 50–60 Hz
- Power consumption: max 100 W
