Repeater Pipette Tips | Positive Displacement Dispenser Tips

Repeater Pipette Tips | Positive Displacement Dispenser Tips 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 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 Contact Hawach for a Quotation Enter your email address and our sales staff will contact you as soon as possible. Your Email (required) Your Message (required) Δ document.getElementById( "ak_js_3" ).setAttribute( "value", ( new Date() ).getTime() ); ×