Bulk Bag Filling

Dust-free filling and weighing of

Bulk Bags, Rigid Bins, Drums and IBCs
Bulk Bag Weigh Fillers
DESIGNED FOR VERSATILITY. BUILT FOR ADAPTABILITY.
Over 100 million bulk bags are sold each year worldwide, proving they are now a well established form of
packaging, storage and transport - and not just from an economic standpoint.
Processors now have a viable alternative to handling and disposing of large numbers of dusty 25kg sacks, because Spiroflow equipment
makes filling and discharging from bulk bags safer, easier, more controllable, and dust-free. Continuous development of our filling stations
allows the choice of standard or customized equipment to suit access, height or hazard considerations. Our filling stations are also the most
versatile on the market - they can be adapted for use with rigid bins, drums and IBCs.

Customers using our filling stations cover

applications in the food, dairy, chemicals,
pharmaceuticals, plastics, building products
and minerals industries. In addition to
standard features including bag/liner inflation
and inflatable neck seal, a wide range of
optional equipment is available to satisfy
process requirements such as spinner filling
heads, vibratory bases for bag compaction,
automatic bag removal, pallet dispensers
and take-off conveyors. Filling materials in Bulk Bags and 25kg sacks in a minerals Automatic bag loop release. Handling by pallet.
processing plant.

Semi-automated bulk bag filling system. Handling by loops. Low profile filler.

Determining Your Requirements

Before selecting a
particular weigh filler,
some key factors need to
be considered. This not
only helps to assess a
customer’s own particular
Q. How do we handle the bulk bag? Q. What bag style and size do we use? Q. How do we contain dust? Q. Can the filling system be automated?
needs, but also assists our A. By pallet or by the bag loops. A. At this stage, you should consult A. An inflatable neck seal effectively A. If filling in volume, options such as
design engineers in both the bag manufacturer and contains the dust during filling. All our pallet dispensers, automatic bag loop
Spiroflow. The bag needs to optimize filling heads comprise an inner and release, bag take-off and accumulation
determining the optimum all its volume for safe storage and outer annulus, for product flow and conveyors should be considered, and
system for those needs. transport. dust evacuation respectively. can be added at a future date to
*See ‘FIBC Filling and Selection’ in the standard Spiroflow equipment.
Brochures section of our website.

Q. Will the equipment need to be Q. Do we need a bag liner? Q. Does the product need vibration? Q. Is automatic loop release and height Q. Can the equipment be adapted to
grounded? A. If the product is very fine, you probably A. Usually, yes. Vibration at the base adjustment available? fill other types of container?
A. If the area poses an explosion risk, will, to prevent leakage or moisture of the unit deaerates and compacts A. Yes, automatic loop release of filled A. Yes. Spiroflow supplies a range of
static dissipative or groundable bags ingress. However, various alternatives the product so it not only optimises bags is a useful labor saving option for options for the filling of rigid bins,
may be recommended, together with a can be used such as coated bags or the bag volume, but forms a safe and pallet loaded bags. Powered height drums and octabins and gaylords.
suitable static monitoring device. special bag seams. The liner must be stable load. A spinner head can also adjustment is also recommended if
inflated correctly to avoid creasing and be used to disperse product into different sizes of bag are being filled in
subsequent discharge problems. ‘baffle’ or compartmentalized bags. order to speed up the filling process.

2
C Series Features and Options
C SERIES WEIGHT FILLERS FOR PALLET HANDLED BAGS
The competitively priced C Series fillers are the ideal solution for users with low
to medium volume requirements.
The modular construction of the C Series enables users to specify a basic unit for their initial requirements.
Where future production demands determine the need for additional operational features, a full range of
options is available designed to meet particular system requirements.

Standard Features Options

2 Post Design
Model C3 with
Carbon/stainless steel automatic height
filling nozzle: dual
concentric filling spout
adjustment
combines venting system for varying
with integral bag/liner
inflator.
bag sizes
and pneumatic
bag loop release
system.
Inflatable neck seal for
dust-free filling.

Quick release latchable

hooks or tubular bars for
suspension of Bulk Bags.

Approved load cell weigh Automatic

platform and controller. bag loop
release.
Vibration facility for
product deaeration and
compaction to provide a
stable load for storage
and transport (electrical
or pneumatic operation).
• Powered roller, mesh or belt conveyor for easy removal of Bulk
Bags.
The C1 Model is for use where Bulk • Pneumatic bag push-off device.
Bags are filled on pallets and removed • Full management data on weight controller, plus printer.
by fork lift truck. The base is directly • Pneumatic bag loop release system.
mounted on an approved load cell • Rigid bin or drum filling attachment.
weigh platform. Features include • Automatic Bulk Bag height adjustment
stop/start control by set weight, • Access platform.
vibration for product compaction, • Full range of filling valves to suit product.
pneumatic neck seal and venting for the air that is displaced during • Spinning heads, to distribute product in bag.
filling. • Mobile units.

Technical Data: Dimensions may vary according to bag size.

Height 2800 mm
Width 1510 mm + 350 mm for control panel
Depth 1510 mm
Fill rate (depending on Bulk Bag size, feed method and operator availability) Up to 20 Bulk Bags / hour
Air requirements (inflatable neck seal and Bulk Bag inflator) NB: Valve requirements not included 5.5 bar @ 900 litres per cycle

3
LC Series Features and Options
LC SERIES WEIGH FILLERS FOR LOOP HANDLED BAGS
The heavy duty LC Series is designed for users who need a heavy duty filling rig that enables
the bag to be easily removed by the loops - for instance, cement and minerals plants.
Rise and fall loop support arms with fork lift truck channels accommodate various bag sizes, and allow the quick
and easy removal of the bags by the loops. Options apply as with the standard C Series machines.

Standard Features Options

Stainless steel filling nozzle
and dual concentric filling
Optional equipment
spout combines venting includes attachment for
system with integral
bag/liner inflator.
rigid and drum filling and
data management on
Inflatable neck seal for weight controller.
dust-free filling.

Rise and fall bag loop

support arms designed for
quick and easy removal by
fork lift truck. These arms
are fully adjustable to suit
varying bag sizes.

Fill rate up to 20 Bulk Bags

per hour depending on
bag size and material
infeed rate.

Robust weigh platform A wide range of bag sizes

mounted on four load can be used for filling a
cells with mechanical
overload protection. variety of products.

Vibration facility for

product deaeration and
compaction to provide a
stable load for storage and
transport Electrical or
pneumatic operation.

The LC series is robustly built for heavy

duty operation and dust-free filling.
Depending on material in-feed rate and
bag size, the LC Series can fill up to 20
bags an hour. Product filling can be
enhanced by way of a spinner below the
filling head and deaeration is provided • Full management data on weight controller, plus printer.
by vibration through the base of the filler. An ingenious mechanism • Rigid bin or drum filling attachment.
raises the bag support arms as the bag is lifted by its loops to ensure • Access platform.
adequate clearance underneath the filled bag to ensure its safe and • Hazard area specification.
efficient removal. We have a Data Sheet that gives the full details. • Full range of filling valves.

Technical Data:
Height 2600-3400 mm dependent on size of bulk bag
Width 1200 mm
Depth 1500 mm
Fill rate (depending on Bulk Bag size, feed method and operator availability) Up to 20 Bulk Bags / hour
Air requirements (inflatable neck seal and Bulk Bag inflator) NB: Valve requirements not included 5.5 bar @ 900 litres per cycle

4
Models for Special Applications
LOW LOADER • BULK BAGS AND/OR SACKS • BULK BAGS OR IBCS OR DRUMS
In addition to our standard ranges of weigh fillers, at Spiroflow we design and manufacture special purpose
equipment for many different tasks.

Low Loader Bulk Bags and/or Sacks Bulk Bags, IBCs or Drums

When filled, the

bag is removed
by pallet jack.

Processors need to respond quickly to customer demand and

Spiroflow’s low loader means bulk bags can now be removed be able to supply product in other kinds of containers such as
without the need for a forklift. The low loading ramp rigid IBCs, drums, octabins and IBCs. With the addition of
and low profile pallet base makes unloading filled bulk bags special adaptors, this can be achieved using the same filling
a simple task with a pallet jack. Filling system for bulk bags and 25kg sacks. platform, providing a versatile, multi-purpose machine.

No Job Too Big Sample Frames Complete Systems

36,000 tonnes in 27,000 Bulk

Bags in Alaska, in 14 weeks!
2 Fillers delivered and
opertational in 6 weeks.

Volumetric filling of dust-free, free flowing, This is where we excel. We take care of
granular materials. everything from concept to commissioning
the installed system.

Semi-automated Filling Custom Bags Accurate Filling

Semi-automated bulk bag filling system gives large volume users the benefit of continuous Bring us your For the most
operation without having to stop to unload each bag. Pallets are automatically fed to challenges, accurate of
the filling rig and the bags are looped onto pneumatically operated hooks. Once filling is we are fillers, we
completed, the loops are automatically released and the bag is then moved along the line always offer ‘hang-
by a powered take-off conveyor. willing to weighing’
design and which can
manufacture be accurate
fillers to up to
meet the +/- 20grm.
specific
needs of
individual
customers.

5
Filling Equipment and Systems Designed to meet all
Process Requirements

Hang weighing bulk bag filler. Filling station for FIBCs, drums and rigid bins. C Series bag filler with feed conveyor.

Multi-ingredient bag filling allows a number

of products to be accurately fed in con-
trolled, varying amounts to a Spiroflow
weigh filler.

C1 Series bag filler and 25kg ‘turbo’ valve packer

fed from one source via bifurcated chute.

Semi-automated bulk bag filling line.

Pallet dispenser. Slip sheet Access Powered accumulation conveyor.

dispenser. platform.

Bulk bag filling machine with powered take-off conveyor.

Filling machine fed direct from silo or

process vessel via bin activator.

6
Filling Fragile Materials Bulk Bag Filling
- Sequence of Operation
The bottom of the bag is raised
1 up to the filling head to avoid
fragile products having to fall the
height of an empty bag.

1. Bag loops are placed 2. Bag spout and liner 3. Liner or bag spout is
over support arms. are opened up. attached to inflatable
neck seal.

3
4. Neck seal is inflated to 5. Liner/bag inflated. 6. Vibration during
secure the liner or bag filling.
spout during filling.

7. Filling valve closes 8. Bulk bag spout removed

at target weight. from filling nozzle and tied.

As the bag fills, material flow is

Inflating a Bag Liner
regulated by its natural ‘choking’
action and the base of the bag is
Correctly
lowered at a rate that allows
filling without product damage. Wrong Right

Correctly Filled Bags

Correctly filled bags, safe for handling, transportation and storage.

Bulk bag liner, Bulk bag filled Correctly inflated Correctly filled
loose as bag with product, liner so no bulk bag with
supplied. but due to rucking occurs in no rucking in
creased liner is bulk bag or over liner and over
rucked over outlet spout. outlet spout.
outlet and could
give discharge
trouble.

7
Powder Handling Systems

Design Manufacturing
We have an experienced team of mechanical and electrical We actively encourage customers to visit our modern manufacturing
engineers with a vast collective knowledge of solids handling, facility at any time. Here, we are able to process orders efficiently and
geared to handle your project quickly and efficiently, whether you to our high standards. We also have a similar manufacturing facility
need a single filling station or a complete powder handling system. in the USA. Our systems and procedures have ISO9001:2000
accreditation.

Testing After sales

Our fully equipped test facility, which is at your disposal, assesses At Spiroflow, we firmly believe that after sales service forms an
performance of our machinery on your particular material. On-site integral part of the product. Over 70% of our business comes from
trials can also be arranged if preferred. existing customers, whom we work with as partners from the
moment of placing an order and throughout the equipment’s
operational life.

Other equipment in the Spiroflow Range:

• Flexible Screw Conveyors • Bag, Drum and IBC Emptiers
• Aero Mechanical Conveyors • Ingredients Handling Systems
• Tubular Drag Conveyors • Batch and Continuous Weighing Systems
• Pneumatic and Vacuum Conveyors • Silo and Hopper Discharge Aids
• Bulk Bag Dischargers • Continuous Mixing Systems

Flexible Screw Aero Mechanical Tubular Drag Conveyors Vacuum Conveyors Bulk Bag
Conveyors Conveyors Dischargers

Contact us today to discuss your applications

Spiroflow Limited Spiroflow Systems Inc.
Lincoln Way, Clitheroe, 2806 Gray Fox Road, Monroe,
Lancashire, BB7 1QG, UK. NC 28110, USA.
Telephone: +44 (0) 1200 422525 Telephone: (1) 704 291 9595
Facsimile: +44 (0) 1200 429165 Facsimile: (1) 704 291 9594
Email: sales@spiroflow.com Email: info@spiroflowsystems.com
Website: www.spiroflow.com Website: www.spiroflowsystems.com

Designed and produced by CDM

10/2010 Edition