Pinch Dilutor – Gravimetric Diluter

Pinch Dilutor
A Product by Orlab

Pinch Dilutor – Gravimetric Diluter

A simple and efficient approach to streamline initial sample gravimetric dilutions is offered by the Pinch Dilutor. Its automated dilutions outmatch the manual method through precision, rapidity, sample handling sterility and reproducibility.

Food, pharmaceutical and cosmetic quality control labs benefit from its optimized workflow. First, samples are inserted inside sterile bags that are placed inside a holder that eases sample insertion while ensuring sterility by avoiding contamination of the bag’s interior. Next, the Pinch Dilutor automatically weighs them and dispenses an accurate amount of broth in order to dilute samples to a configurable dilution factor. Samples are now ready to be homogenized for further testing.

System Highlights

Easy to operate:

use two push buttons to command the device, calibration takes a few instants.

Extremely simple setup:

inserting diluent containers in the device and removing them for sterilization and cleaning takes only a few seconds.

Regulatory compliance:

ISO 7218 compliant.


Uniquely silent, affordable, and with a very small foot print, it is the only diluter of its kind that dispenses liquids thanks to gravity. This ensures minimal maintenance as the device contains a single moving part.

Pinch Valve 24 V, DC
Delivery speed 550 ml/min
Weight resolution 0.1 g
Weighing inaccuracy < 1 %, ± 1 digit
Working temperature + 5°C to + 40°C
Mains 230/100 V 50/60 Hz
Power 45 W
Dimensions (LxWxH) 240x300x810 mm/9.4x11.8x31.9 (The height can be reduced to 650 mm /25.6 in with the Horizontal Holder)
Weight 6.5 Kg
Maximum sample weight Compatible with factor, tare and weight range
Dilution ratio 1/2 to 1/50.
Default value 1/10
Dilution inaccuracy < 0.2 g
Maximum total weight 2000 g including tare