OMB NET Weigher

OMB NET Weigher for Economical Solution for all Free Flowing Powders and Granules

 

The OMB-NET open-mouth bagging system is a semi automatic electronic bagging system available in standard patterns or customised to your requirement. It is may be supplied with an overhead hopper from our range or with adaptions to suit your your existing overhead bin. The OMB NET packer uses precision electronic loadcells to pre batch one batch in an internal weigh hopper so it is ready to dump when your operator installs a bag . Our product is fitted with SMART GATE technology that overcomes the issues associated with the small apertures required to deliver accuracy and flow rate.

  • High accuracy, reliable operation with our SMART GATE technology
  • Simple construction and sturdy design for long-term reliability
  • Enclosed design with removable panels providing easy access into the machine
  • SOFT CLOSE clamps on our designs are fast and safe Built for continuous operation 24 hours/day.
  • Clean and dust-free operation


Use an AWE OMB Net Weigher

  • High accuracy, reliable operation with our SMART GATE technology
  • Production rate: up to 600 bags per hour depending on product characteristics, bag weight, and accuracy needed
  • Simple construction and sturdy design for long-term reliability
  • Enclosed design with removable panels providing easy access into the machine
  • Choice of round dust-tight manual bag holding system for dusty applications or Hi Flo v-shape bag holding system(Duck Bill) Manual flow control & shut off gate
  • Two stage flow control with SMART GATE technology Precision weigh hopper with
  • APE-7 Loadcells
  • Enclosed design for dust containment Hi-flow bombay doors with empty sensing & auto refill
  • SOFT CLOSE clamps on our designs are fast and safe.
  • All Stainless, Select stainless, and carbon steel models
  • Quick connect pneumatic and single phase electrical hookup
  • Built for continuous operation 24 hours/day
  • Simple instrument based control system.
  • Clean and dust-free operation
  • Widest range of bag clamp options and sizes
  • Also Controls overhead hopper (high and low) and bag closing line.

 

Our OMB NET Weigher Is Supplied Standard With:

  • Inlet shut off and feed control (manual)
  • Material input fast and slow feed rate control using SMART GATE technology
  • Internal weigh hopper using precision APE-7 loadcells
  • Bag clamps to suit your bag style (9 sizes)
  • Dust tight “birds mouth” and SOFT CLOSE clamp options
  • Integrated solid state controller with weight display
  • Also controls overhead hopper (high and low) and bag closing line


Cut Away View Of OMB Net Weigher

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How the OMB Net Weigher Works

What You Get With OMB Net Weigher

 

OMB Net Weigher Technical Specifications

Product InfeedGravityBeltVibratoryScrew
Production Rateup to 12*up to 7*up to 6*up to 9*
System Accuracy (typical)0.5%
Bag Accuracy (typical)-0/+100g typical @ 8 x 20kg bags/min (grain)
Accuracy+/- 10g
Weighment Range10 to 50kg
Air Consumption1.5 Litres per cycle
Weigh Hopper Capacity80 ,100,135 and 170 litre
Operating Pressure4 to 6 bar (10 bar max)
Power Supply240V / 1 Ph / 50Hz / 150w
Operating Temperature-5°C to 45°C
Depending on product characteristics, bag size, etc. *Rates obtained in simplex configuration. Duplex configuration available for higher speeds.

Options:

  • Product Infeed: Gravity; Belt Feed; Auger; Dual Auger; Vibratory
  • Manual flow control & shut off gate
  • Can be Constructed from 304/316 Stainless Steel
  • It may be supplied with an infeed hoppers from our range or with adaptions to suit your your existing overhead bin
  • No bag no fill functionality minimizes product wastage
  • Check weigher with weight feedback to the packer for monitoring, tracking and correcting bag weights dynamically.

Optional Equipment to Complete Packaging System

  • Bag & Sack Placers
  • Parallel Conveyors
  • Auger Feeders
  • Hopper
  • Hot Air Sealers, Bag Closers
  • Box Filling Machines
  • Palletisers
  • Gusset Reformers

Net Weigher Clamping Options

Another point of difference between our packers and our competitors is our awareness and solution to the risk of operators getting there fingers caught in the clamps. To this end we feature soft close technology and deep rubber profiles on our clamp closing systems. The OMB packer provides 2 different clamping options.

Duckbill Style

  • Duckbill style bag clamps provides the fastest way of putting bags onto the net bagger and is the preferred choice if you want to automate the bag placing with one of Bradwood Packaging’s ASP Automatic Sack Placers.
  • Duckbill Jaws may be fitted with “Soft Close” functionally to protect operators fingers, from getting caught in the jaws.
  • Typically used dust controlled, or non dusty products.

Dust Tight Clamps

  • Dust Tight Clamps extend over the entire width of the bag to form a dust tight seal.
  • The dust tight clamps use water jet cut rubber jaws to provide a safety cushion in case the operators fingers get caught between the clamps. They may be fitted with “Soft Close” functionally to further protect the operators fingers.

Soft Close

  • “Soft Close” is a proprietary low pressure clamp closing system designed and manufactured by Bradwood Packaging.
  • “Soft Close” allows operators to remove their hands without being damaged during bag placements.
  • All timing and pressures are fully adjustable.

Comparison Chart of Weighers & Typical Dimensions

ModelNet WeighersGross WeighersVolumetric
Types of WeighersNet Weighers use an
internal weigh hopper
that pre-weighs and
holds one bag ready to
be emptied when a bag
is placed on spout. Net
weighers require more
head room, are more
expensive but offer clear
advantages in terms of
speed and accuracy.
Gross weighers operate
by weighing material
in the bag as it fills.
The bag is part of the
weighing system. Gross
weighers are readily
adapted to existing
systems. They provide
uninterrupted feed path
to the bag which is an
advantage for certain
products. They are
lowest cost but usually
have slower filling times
versus accuracy.
Volumetric Fillers operate
usually by pocketed
mini-hoppers with
dimensions to suit the
selected packing volume.
For suitable products
they offer much higher
packing rates but are
less accurate than other
solutions.
Bag Accuracy
(typical)
-0/+150g typical @ 8 x
20kg bags/min (grain)
-0/+150g typical @ 4 x
20kg bags/min (grain)
1-3%
Packaging Speed6-12 bags/min (grain)4-6 bags/min (grain)6-10 bags/min (grain)
Air Consumption1.5 Litres per cycle
@80PSI
1.5 Litres per cycle
@80PSI
3 Litres per cycle @80PSI
Power Required240V, 1 phase, 250W basic OMB, 415V, 3 phase, 2.5-3.5KW with auger
Weighment Range1 to 50 kg1 to 50 kg0.5 to 5 Litres
Weigh Hopper Capacity80, 100, 135 & 170 Litres
or custom sizes
Weighed in bag+/- 10% Tolerance to
actual weight filled
(Adjustment)
Bag TypesOpen MouthOpen MouthOpen Mouth