Product Description
The Double Loop FIBC Bag — also known as a 2-loop bag — provides the speed advantage of crane hook lifting while adding the load stability and weight-bearing improvement of a second lifting loop. Two heavy-duty woven PP loops are positioned symmetrically on opposite sides of the bag top, creating a balanced two-point lifting geometry that distributes the load more evenly than a single centralised loop and handles heavier or more unevenly distributed materials without the bag tilting or swinging under the hook.
Beyond standard crane operations, the double-loop design is particularly suited to long or irregular-shaped loads — logs, steel rods, pipe sections, and bundled materials — where the two-point lift provides lateral stability that a single central loop cannot. At Tam Tam Packaging, we manufacture double-loop FIBC bags in the full range of construction styles and configurations, with loop geometry and separation distance customisable to match your crane spreader bar or 2-hook lifting beam dimensions.
Single Loop vs Double Loop — Side-by-Side
| Feature | Single Loop | Double Loop (2-Loop) |
| Lifting points | 1 (centre) | 2 (symmetrical, opposite sides) |
| Load balance | Self-centring for regular loads | Better for heavy / irregular loads |
| Max practical SWL | Up to 1,500 kg | Up to 1,500 kg (shared across 2 loops) |
| Long load suitability | Limited | Good — lateral stability via 2 points |
| Hook requirement | Single hook | 2-hook beam or crane spreader |
| Best for | Speed, simple loads | Heavy, irregular, or long loads |
Why Choose This Bag?
- Two-point lift provides better lateral stability than single-loop — prevents bag swinging and tilting under crane
- Distributes lifting load between two attachment points — reduces peak stress on individual loop stitching vs single-loop
- Preferred for irregular-shaped, long, or asymmetrically distributed loads (timber, rebar, pipe sections)
- Compatible with crane spreader bars and 2-hook lifting beams — standard lifting hardware in heavy industrial operations
- Available with all standard top/bottom configurations and liner options for product-specific requirements
| 💡 BUYER TIP: Always specify your crane spreader bar’s hook-to-hook distance when ordering double-loop bags — a mismatch of even 10 cm creates uneven load distribution between the two loops, which reduces effective SWL and increases the risk of loop failure under dynamic loading. This measurement takes 30 seconds to collect and prevents a specification error that can only be corrected with a new bag order. |
Typical Applications Industries
- Timber, lumber, and log handling in sawmill and construction material operations
- Steel reinforcement bar, pipe sections, and long metal products
- Heavy aggregate and rock fragment loads from quarrying and mining
- Dense industrial materials: metal scrap, heavy castings, compacted waste
- Port cargo handling where crane spreader bar lifting is standard practice
Technical Specifications
| Loop Configuration | 2 loops — symmetrically positioned on opposite bag sides |
| Loop Separation | Matched to crane spreader bar / 2-hook beam dimensions (custom available) |
| Loop Reinforcement | Heavy-duty multi-ply woven PP; reinforced attachment stitching |
| Safe Working Load | 500 kg – 1,500 kg (shared load across both loops) |
| Safety Factor | 5:1 (single-use) / 6:1 (multi-trip) |
| Per-Loop Rating | Each loop rated to full bag SWL minimum |
| Construction | Circular / U-Panel / 4-Panel |
| Fabric | 100% Virgin PP woven, UV-stabilised |
| Fabric Weight (GSM) | 110 – 250 gsm |
| Coating | Coated or Uncoated |
| Top Options | Open top / Spout top / Duffle top |
| Bottom Options | Flat bottom / Discharge spout |
| Liner | Optional PE tube or form-fit liner |
| UV Stabilisation | Standard — 2,500 hours |
| Printing | Up to 4-colour flexographic |
| MOQ | 1000 bags per specification |
| Certification | ISO 21898; SGS tested |
Frequently Asked Questions
Q1: What lifting equipment is needed for double-loop FIBC bags?
Double-loop bags are designed for use with a 2-hook crane spreader bar or a 2-hook lifting beam, where one hook engages each loop simultaneously for a balanced lift. Alternatively, some operations use a single hook with a double-legged chain sling or V-sling, where each leg connects to one loop. The loop separation distance on the bag should be specified to match your spreader bar or sling leg spacing — provide this dimension when ordering.
Q2: Why are double-loop bags preferred for timber and log handling?
Timber and logs create long, laterally extended loads that are prone to rotation and tilting under a single lifting point. A two-point lift — with loops at each end of the load’s longest dimension — provides the lateral restraint needed to keep the load horizontal and stable during crane transit. This is why double-loop bags (and double-loop slings) are the industry standard for timber handling operations.
Q3: Is the double-loop bag suitable for forklift operations?
Double-loop bags are not designed for standard forklift tine operation — the two loops on opposite sides of the bag do not align with forklift tines in a practical way. If your operation requires both crane and forklift compatibility, specify a 4-corner loop bag for forklift primary use, or discuss a hybrid loop configuration with our team for dual-use applications.
Q4: Can I specify the distance between the two loops?
Yes — and we recommend doing so. The loop-to-loop separation distance should match your crane spreader bar width or 2-hook lifting beam leg spacing. Standard separation distances are 60 cm, 80 cm, and 100 cm, but custom separations are available. Provide your lifting equipment’s hook-to-hook distance at the order stage, and we will manufacture bags with the matching loop geometry.
Contact Us
| Handle heavy and irregular loads safely with double-loop FIBC bags matched to your lifting equipment. Contact us with your spreader bar dimensions and SWL requirement.
→ Request Double Loop Bag Quote |
