Spout Top / Spout Bottom FIBC Bags
A controlled-fill and controlled-discharge bulk bag format for operations where material containment and measured emptying are process requirements.
FIBC Bulk Bags
Duffle Top / Discharge Spout Bottom FIBC Bags
Duffle top discharge spout bottom bulk bags combine the fill flexibility of a wide open top with the discharge control of a fabric bottom spout. The duffle top accommodates unrestricted filling from hoppers, conveyors, or manual loading systems. The discharge spout controls how and where the material exits. If your fill process is straightforward but your discharge process is not, this configuration handles both sides of that problem.
Product Overview
About this bag configuration.
The duffle top / discharge spout bottom FIBC is a hybrid woven polypropylene bulk bag that pairs a broad, closeable top opening with a bottom discharge spout for controlled emptying. The duffle top allows flexible filling from wide-mouth hoppers, conveyors, or manual loading without the alignment requirements of a top spout. After filling, the duffle is tied or cinched closed. The bottom discharge spout provides a controlled, directed outlet that supports cleaner emptying into downstream equipment. This format is commonly selected when the fill process is unconstrained but the discharge process requires containment or equipment alignment. Liner options, coating choices, loop styles, and print configurations are available on request.
Typical Applications
Common uses for this bag format.
- Dry blended powders - operations where powder is loaded freely from above but must discharge in a controlled stream
- Pellets and granules - plastic pellets, feed pellets, or granulated compounds where a directed outlet matters at the unloading station
- Agricultural inputs - seed, feed ingredients, or crop inputs loaded from bulk hoppers and discharged into specific equipment or containers
- Industrial additives and compounds - materials handled in processing environments where fill is batch-based but discharge is equipment-integrated
- Recycled and regrind material - where loading is uncontrolled but the receiving system at the other end requires a directed inlet
Industries
Who typically buys this bag type.
Agriculture
Flexible top fill with controlled discharge for ag inputs
Plastic Resin and Pellets
Pellet handling where unloading control and alignment matters
Chemicals and Powders
Powder transfer with contained and directed discharge
Industrial Manufacturing
Hybrid fill and discharge workflows in processing environments
Standard Features
What this bag includes.
- Duffle top closure - fabric skirt with tie or cinch closure for covered transport and post-fill containment
- Bottom discharge spout - fabric outlet for controlled, directed emptying
- Full top fill access - wide opening compatible with hoppers, conveyors, and manual loading
- Discharge spout tie closure - spout secured during transport and storage
- Woven polypropylene body - coated or uncoated depending on application
- 1-ton class construction - SWL and safety factor confirmed at project review
- Optional liner compatibility - available on request
- Optional print - branding, product identification, handling marks
Customization Options
Configure to your requirements.
- Duffle length and closure detail - skirt depth and tie method confirmed at review
- Bottom spout diameter and length - sized to downstream equipment requirements
- Baffle configuration - internal baffles for shape retention where relevant
- Fabric weight and coating options - confirmed against material and handling environment
- Liner type and configuration - form-fit or loose PE liner available
- Loop style and placement - cross-corner standard; alternatives available
- Print layout - branding, handling instructions, identification marks
Specification Snapshot
Technical reference for quoting discussions.
Specifications below reflect common commercial ranges and standard options for this bag style.
| Configuration | Duffle top / discharge spout bottom |
|---|---|
| Top access | Duffle with tie or cinch closure |
| Bottom outlet | Fabric discharge spout - diameter confirmed at review |
| Typical capacity | 500 kg to 2,000 kg |
| Safe working load (SWL) | 500 kg to 2,000 kg standard |
| Safety factor | 5:1 standard; 6:1 available on request |
| Body fabric | Woven polypropylene - coated or uncoated |
| Liner option | Available on request |
| Loop style | Cross-corner standard; alternatives available |
| Bag dimensions | 35 x 35 x 40 in to 42 x 42 x 72 in common range |
| Print options | Single-colour or multi-panel |
* All FIBC bags are fully customizable for dimensions, fabric weight, loop style, liner setup, top and bottom construction, and print requirements.
Standard Variants
Most inquired configurations for this bag type.
Compare common sizes and build-specific options below, then open a variant page for full technical details and a quick inquiry form.
| Variant | Size | SWL | Build | Liner | Common Use | Action |
|---|---|---|---|---|---|---|
| 35x35x45 standard hybrid | 35 x 35 x 45 in | 1000 kg | Coated woven polypropylene with duffle top and discharge spout | No | Operations needing flexible top filling with controlled discharge into downstream equipment. | Open |
| 35x35x53 taller hybrid | 35 x 35 x 53 in | 1000 kg | Coated woven polypropylene with duffle top and discharge spout | No | Lower-density materials needing extra fill volume with controlled discharge. | Open |
| 35x35x45 with PE liner | 35 x 35 x 45 in | 1000 kg | Coated woven polypropylene with duffle top and discharge spout | PE liner | Food ingredients, moisture-sensitive materials, or powders requiring an inner barrier with controlled discharge. | Open |
| 42x42x48 heavy-duty hybrid | 42 x 42 x 48 in | 1500 kg | Heavy-duty coated woven polypropylene with duffle top and discharge spout | No | Higher-weight applications needing flexible top fill and controlled discharge at larger volumes. | Open |
Why This Format
Why choose this bag style.
This configuration resolves a specific operational problem: the fill process is simple and does not need a guided spout, but the discharge process does. Buyers in agriculture, plastics processing, and powder handling frequently arrive at this format after finding that an open base creates problems at the unloading end. The duffle top keeps the fill side practical and unrestricted. The discharge spout gives the unloading side the control it needs - whether that means directing material into a hopper, managing flow rate, or keeping the material contained until the operator is ready to discharge. If your fill decision and your discharge decision point in different directions, this format bridges the gap.
Request a QuoteRelated Bag Types
Compare nearby configurations.
These formats are worth reviewing if your application has requirements this configuration does not fully address.
Duffle Top / Flat Bottom FIBC Bags
A 1-ton bulk bag with a closeable top opening for materials that benefit from covered transport or post-fill containment.
Open Top / Flat Bottom FIBC Bags
A straightforward 1-ton bulk bag for dry flowable materials that need efficient filling and stable pallet handling.
Product FAQ
Questions that come up during specification review.
Why would an operation need both a duffle top and a discharge spout bottom?
This configuration is for operations where the fill process is flexible and does not require a guided spout - but the discharge process does. The duffle top allows wide-access filling from hoppers, conveyors, or manual loading. The discharge spout gives the unloading side the control it needs for downstream equipment alignment or material containment during emptying.
How is this different from a spout top spout bottom bag?
A spout top spout bottom bag uses a guided spout for filling as well as discharge. The duffle top discharge spout format uses a wide open top for filling - which is easier to load from but not guided - and a spout for discharge only. If your fill process does not require a guided inlet but your discharge process does, the duffle top discharge spout bottom is the more practical choice.
What materials work well in duffle top discharge spout bags?
This format works well for dry granular materials, pellets, agricultural inputs, and industrial powders where loading flexibility is valued and controlled emptying is needed. It is commonly used in agriculture, plastics processing, and industrial compounding environments where the fill station and discharge station have different equipment constraints.
Do you offer liner options?
Liner options can be discussed during the RFQ process when the application, material characteristics, and handling requirements call for additional containment or barrier support.
Can XTRX support custom bag sizing and specifications?
Yes. XTRX is positioned to support project-specific requests for dimensions, loop styles, coating, liner needs, print requirements, and target load parameters. Final specifications should be confirmed through the quote process.
How do I request a quote?
Use the RFQ form to provide company details, product interest, estimated quantity, bag dimensions, fill material, delivery destination, and timeline. That structure helps qualify requests and speeds up next-step conversations.
Do you supply customers across Canada?
XTRX is positioned as a Canada-wide supply partner for qualified buyers. Coverage messaging is national, with support for quote discussions involving Ontario, Quebec, Alberta, British Columbia, and other provinces.
Ready for a Quote?
Share your dimensions, material, and estimated volume.
The RFQ form is designed to capture the details procurement and operations teams usually want to align on early. The faster you provide them, the faster the quote conversation moves.