About Different Filter Membranes and Its Performance of Syringe Filter

Hawach syringe filters is widely used in laboratory. It does not need to change membrane and clean filter, which saves complex time-consuming preparation work. It is mainly used in sample pre-filtration, clear removal of particles, liquid and gas bactericidal filtration. It is a method for filtering small samples of HPLC. Needle filter shell material is medical grade PP plastic, upper and lower by ultrasonic welding into one, anti-skid design, high pressure resistance, there is no leakage problem of the product.

Highlights of syringe filter

1. Effectively increase flow rate and filtration capacity, and improve filtration efficiency.

2. Reinforced secondary injection molding process can withstand higher operating pressure, increase filtration speed, and make filtration easier.

4. It does not contain pyrogen and RNase, which is safer and more reliable for biological experiments.

5. Each filter is individually packed for easy use.


Hawach syringe filter are suitable for water filtration in electronics, microelectronics, semiconductor industry, and tissue culture media, medicinal solutions, beverages, high-purity chemicals, water and organic solution mobile phases. No need to change the membrane and clean the filter, saving working time. It is mainly used for mobile phase and sample filtration in chromatographic analysis, filtration of mobile phase and sample in chromatographic analysis.

Syringe filters have extremely low protein adsorption and very high protein recovery. Fast flow rate and high filtration speed. Good solvent resistance, suitable for many applications. High precision.


1. ultra-fast filtration of tissue culture media, additives and other aqueous solutions;
2. Applications requiring extremely low protein adsorption to improve the yield of precious components;
3. biological, pharmaceutical sterilization filtration;
4. Terminal filtration of high-purity water in the electronics industry;
5. Terminal filtration of ink;
6. Food: terminal filtration of beverages and wine.

CA Syringe FiltersHydrophobic PVDF Syringe FiltersSterile PVDF Syringe Filters

Pore Size

Common membranes are available in various sizes: polyethersulfone (PES), polytetrafluoroethylene (PTFE), nylon, mixed cellulose (MCE), glass fiber membrane (GF), polyvinylidene fluoride (PVDF), Cellulose acetate (CA), etc.; pore size ranging from 0.1 μm to 5 μm; diameter 4 mm,13 mm,17 mm,25 mm,30 mm, and 47 mm.

Different filter membranes and its performance


High solvent recovery rate, low residual amount; high throughput.
High microbial filtration capacity; unique threaded interface design.
Low protein adsorption, low dissolution.


Excellent chemical resistance.
High temperature resistance, strong acid resistance, strong alkali, and extremely hydrophobic.
Both hydrophilic and hydrophobic membranes are available to meet different liquid filtration needs.


High porosity and good interception effect.
Not resistant to strong acids, strong alkali solutions and most organic solvents.


Natural hydrophobicity.
Large flux; large permissible quantity of pollutants.
Good mechanical strength.


Hydrophobic membrane, no moisture absorption, easy to maintain weight.
Temperature resistant, repeated hot pressing.
Chemical resistant, oxidation resistant; threaded interface design.


Natural hydrophilicity.
Low protein adhesion, suitable for aqueous solution treatment.
No nitrates, suitable for filtration of groundwater.