For optimized productivity Natro Tech S.r.l. offers two types of weighing system. Both types feature NATRO ATO; an electronic microprocessor-based weighing and controlling unit. The unit is equipped with a 40 MHz 16 bit microprocessor and a 200 kHz 16 bit analog / digital converter with a high degree of accuracy.

The weighing systems provide various types of statistics and all parameters are password protected.



  • Natro WP, weighing system
  • Natro Check, check-weigher

Machinery Specifications


Natro WP


Natro Check


Weighing norm


M.I.D. Certification OIML R61





600 bags/h


3200 bags/h at 1m/sec

Weighing tolerance
for each bag


1% of the weight


± 20 gr to ±50 g




Weighing systems are suitable for the following industries:

  • Building and construction
  • Food
  • Pet food & Pet care
  • Farming and agriculture
  • Chemicals and dangerous goods
  • Electronics
  • Glassware and ceramics

Related products

Air packers

Developed to filling granular or powdery products at high speed into valve bags.

Bag applicators

Bags can be placed onto the filling spout conveniently through an automatic bag applicator.

Impeller packers

Developed for filling very fine powdery products (<3 mm) at high speed into valve bags.

High capacity palletisers

Meeting the need of high output production.

Low capacity palletisers

Ideal for medium and low production output.

Medium capacity palletisers

Great flexibility to satisfy all requirements.

Sealing systems

Offering in-line sealing systems and on-board sealing systems

Weighing systems

Various types of weighing systems for optimized productivity, providing various types of statistics.