0.5mL – 50mL tip volumes
PP cylinder
PE-HD pisto
Accuracy ±0.8% to ±0.2%
Precision ≤0.7% to ≤0.2%
Compatible with most repeating pipettes
Availability: In Stock
Repeater Pipette Tips | Positive Displacement Dispenser Tips
Description
Product Overview
Hawach Repeater Pipette Tips are disposable positive displacement dispenser tips designed for accurate repetitive liquid dispensing in laboratory environments. Unlike conventional pipette tips that rely on an air cushion, these tips feature an integrated piston and cylinder system that directly contacts the sample, ensuring reliable dispensing performance regardless of liquid viscosity, density, or vapor pressure.
Manufactured from high-quality materials, the cylinder is made of polypropylene (PP) while the piston is produced from high-density polyethylene (PE-HD). No soft lubricants, silicone oils, or other additives are used during manufacturing, minimizing contamination risks and making the tips suitable for sensitive analytical and biological applications.
Available in capacities ranging from 0.5 mL to 50 mL, Hawach repeater pipette tips support dispensing volumes from 10 μL to 5 mL and are ideal for repetitive dispensing of aqueous, viscous, volatile, foaming, and high-density liquids in clinical diagnostics, molecular biology, pharmaceutical development, chemical analysis, food testing, and industrial quality control laboratories.
Key Features
Positive Displacement Technology
The integrated piston directly contacts the sample, eliminating inaccuracies caused by air compression and ensuring highly reproducible dispensing performance.
Suitable for Difficult Liquids
Particularly suitable for liquids with:
- High viscosity
- High vapor pressure
- High density
- Foaming characteristics
- Volatile solvents
Additive-Free Construction
Manufactured without:
- Silicone oils
- Soft lubricants
- Plasticizers
- Surface additives
This reduces contamination risks and improves compatibility with sensitive laboratory procedures.
Wide Volume Coverage
Seven dispenser tip capacities cover dispensing volumes from 10 μL to 5 mL, supporting a wide variety of laboratory workflows.
High Chemical Resistance
The PP cylinder and PE-HD piston provide excellent resistance to many laboratory reagents and solvents.
Disposable Design
Single-use construction minimizes cross-contamination and simplifies workflow management in regulated laboratory environments.
Applications
Hawach Repeater Pipette Tips are suitable for:
- Microplate filling
- Reagent aliquoting
- PCR and qPCR preparation
- ELISA workflows
- Clinical diagnostics
- Serial dispensing procedures
- Pharmaceutical formulation development
- Chemical analysis
- Food and beverage testing
- Industrial quality control laboratories
Why Choose Positive Displacement Dispenser Tips?
Traditional air-displacement pipette tips rely on an air cushion between the piston and the liquid. This can lead to inaccuracies when handling viscous, volatile, or foaming liquids.
Positive displacement dispenser tips eliminate this air cushion by using a piston that directly contacts the liquid sample, resulting in improved dispensing accuracy and reproducibility.
| Feature | Positive Displacement Tips | Standard Pipette Tips |
| Viscous Liquids | Excellent | Limited |
| Volatile Liquids | Excellent | Limited |
| Foaming Samples | Excellent | Moderate |
| Evaporation Effects | Minimal | Significant |
| Dispensing Accuracy | Higher | Moderate |
| Repetitive Dispensing | Excellent | Poor |
| Cross Contamination Risk | Lower | Higher |
Available Tip Sizes & Dispensing Volumes
The first and last dispensing volumes should be discarded when the highest dispensing precision is required.
| Tip Capacity | Setting 1 | Setting 2 | Setting 3 | Setting 4 | Setting 5 |
| 0.5 mL | 10 μL | 20 μL | 30 μL | 40 μL | 50 μL |
| 1.25 mL | 25 μL | 50 μL | 75 μL | 100 μL | 125 μL |
| 2.5 mL | 50 μL | 100 μL | 150 μL | 200 μL | 250 μL |
| 5 mL | 100 μL | 200 μL | 300 μL | 400 μL | 500 μL |
| 12.5 mL | 250 μL | 500 μL | 750 μL | 1000 μL | 1250 μL |
| 25 mL | 500 μL | 1000 μL | 1500 μL | 2000 μL | 2500 μL |
| 50 mL | 1000 μL | 2000 μL | 3000 μL | 4000 μL | 5000 μL |
Number of Dispensing Steps per Aspiration
| Dial Setting | 1 | 2 | 3 | 4 | 5 |
| Maximum Steps | 48 | 23 | 15 | 11 | 8 |
Accuracy & Precision
Factory-calibrated for reliable dispensing accuracy and reproducibility.
| Tip Capacity | Accuracy (A%) | Precision (CV%) |
| 0.5 mL | ±0.8% | ≤0.7% |
| 1.25 mL | ±0.8% | ≤0.5% |
| 2.5 mL | ±0.8% | ≤0.4% |
| 5 mL | ±0.4% | ≤0.3% |
| 12.5 mL | ±0.3% | ≤0.3% |
| 25 mL | ±0.2% | ≤0.3% |
| 50 mL | ±0.2% | ≤0.2% |
Material Specifications
| Component | Material |
| Cylinder | Polypropylene (PP) |
| Piston | High-Density Polyethylene (PE-HD) |
| Lubricants | None |
| Silicone Oils | None |
| Plasticizers | None |
| Manufacturing Additives | None |
Technical Specifications
| Parameter | Specification |
| Product Type | Positive Displacement Dispenser Tips |
| Compatible Instrument | Repeater Pipettes / Stepper Pipettes |
| Available Capacities | 0.5 mL, 1.25 mL, 2.5 mL, 5 mL, 12.5 mL, 25 mL, 50 mL |
| Dispensing Volume Range | 10 μL – 5 mL |
| Maximum Dispensing Steps | Up to 48 |
| Cylinder Material | PP |
| Piston Material | PE-HD |
| Sterility | Non-Sterile |
| Packaging | Bulk Pack |
| Application | Repetitive Liquid Dispensing |
Ordering Information
| Hawach Cat# | Specification | Package |
| 21041002 | 0.5 mL, piston PE-HD, cylinder PP | 5 pcs/pack |
| 21041003 | Tips for Stepper, 1.25 mL, piston PE-HD, cylinder PP | 5 pcs/pack |
| 21041004 | 2.5 mL, piston PE-HD, cylinder PP | 5 pcs/pack |
| 21041005 | 5 mL, piston PE-HD, cylinder PP | 5 pcs/pack |
| 21041006 | 12.5 mL, piston PE-HD, cylinder PP | 5 pcs/pack |
| 21041007 | 25 mL, piston PE-HD, cylinder PP, with adaptor | 2 pcs/pack |
| 21041008 | 50 mL, piston PE-HD, cylinder PP, with adaptor | 2 pcs/pack |
| 21041009 | Adaptor for 25 mL / 50 mL Tips | 10 pcs/pack |
Frequently Asked Questions
What are repeater pipette tips?
Repeater pipette tips are disposable positive displacement dispenser tips used with repeater or stepper pipettes for accurate repetitive liquid dispensing.
What is the advantage of positive displacement technology?
Positive displacement technology eliminates the air cushion found in conventional pipetting systems, improving accuracy when dispensing viscous, volatile, foaming, or high-density liquids.
What materials are used in these dispenser tips?
The cylinder is manufactured from polypropylene (PP), while the piston is made from high-density polyethylene (PE-HD).
Do these tips contain lubricants or silicone oils?
No. Hawach repeater pipette tips are manufactured without lubricants, silicone oils, or other additives.
Can these tips handle viscous liquids?
Yes. They are specifically designed for accurate dispensing of highly viscous, volatile, foaming, and high-density liquids.
What tip capacities are available?
Available capacities include 0.5 mL, 1.25 mL, 2.5 mL, 5 mL, 12.5 mL, 25 mL, and 50 mL.
How many dispensing cycles can be performed from one aspiration?
Depending on the selected dial setting, up to 48 dispensing cycles can be performed from a single aspiration.
Are adaptors required for larger tip sizes?
Yes. The 25 mL and 50 mL dispenser tips are supplied with an adaptor for proper installation and operation.
Why Choose Hawach Repeater Pipette Tips?
- Positive displacement technology for difficult liquids
- High-quality PP cylinder and PE-HD piston
- No lubricants, silicone oils, or additives
- Dispensing volumes from 10 μL to 5 mL
- Up to 48 dispensing cycles per aspiration
- Excellent accuracy and reproducibility
- Suitable for clinical, pharmaceutical, chemical, and research laboratories
- OEM and private label services available
- Factory-direct supply with bulk order support
Request a Quote
Contact Hawach for:
- Distributor pricing
- OEM & private label projects
- Bulk quantity discounts
- Technical documentation
- Sample requests
- Custom packaging solutions
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