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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 in terms of precision, speed, 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 facilitates 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.

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System Highlights

Easy to operate: use two push buttons to command the device, calibration takes a few mo.

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.

Unique: Uniquely quiet, affordable, and with a very small footprint, it is the only dilutor of its kind that dispenses liquids thanks to gravity. This ensures minimal maintenance as the device contains a single moving part.

Application scope

Pinch Dilutor offers simple and handy automation unlike any other gravimetric diluter. It can dilute any sample that weighs more than 10 g (to dilute lighter weight samples see the Smart Dilutor W section). It can dispense diluent from both ready-to-use media bags and especially devised bottles using the bottle adapter accessory.

Samples are diluted with and without filter bags which can be placed in order in Portabag bag holders to be inserted inside blenders for homogenization.

Click here to explore the possibilities offered by IUL’s advanced gravimetric diluter, the Smart Dilutor W.

How to Continue Processing Diluted samples:

After dilution, sample-containing bags can be stored in Portabag bagholders, pending homogenization in Masticator blenders. Once homogenized, the Eddy Jet 2 spiral plater is used in order to reduce the number of plates processed, offering a threefold decimal dilution counting range in a single plate. Following incubation, plates are automatically counted and fed with the Plate Handler or automatically counted and manually fed with the SphereFlash®.

Ordering Information

Description Cat. No.
Pinch Dilutor 90007511

Technical Specifications

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 (L×W×H) 240×300×810 mm/9.4×11.8×31.9 (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
Description Cat. No.
Portabag: Stainless steel holder for six 400 mL bags 90002300
Holder for 2-liter bottle (includes bottle) 900011487
2-liter bottle 900011274
500 pcs of 400 mL Ƴ-irradiated homogenizer bags with filter (packed in 25-bag packs) 900014501
2000 pcs of 400 mL Ƴ-irradiated homogenizer bags with filter (packed in 25-bag packs) 90002451
5000 pcs of 400 mL Ƴ-irradiated homogenizer bags with filter (packed in 25-bag packs) 90002452
500 pcs of 400 mL Ƴ-irradiated homogenizer bags (packed in 10-bag packs) 900014010
5000 pcs of 400 mL Ƴ-irradiated homogenizer bags (packed in 10-bag packs) 90001428
500 pcs of 400 mL Ƴ-irradiated homogenizer bags (packed in 50-bag packs) 900014050
5000 pcs of 400 mL Ƴ-irradiated homogenizer bags (packed in 50-bag packs) 90005421