Tunnel Lift FIBC Bag Supplier India
Tunnel Lift Bag — Sourced From Audited Indian Factories
Lift loops threaded through sewn fabric tunnels, not stitched flat — standard FIBC for cold stores and low-headroom filling stations where every centimetre of vertical clearance counts.
Overview
Tunnel Lift FIBC Bags, also known as Tunnel Loop Bulk Bags or Sleeve Loop FIBCs, are specially designed bulk containers featuring four standard lifting loops integrated with two reinforced fabric tunnels. These tunnels are formed from extensions of the bag body fabric and are securely incorporated into the bag structure, providing additional support and stability during handling.
The tunnel design allows forklift tines to pass through the integrated sleeves, enabling safe and efficient lifting while reducing the effective lifting height of the bag. By positioning the lifting points closer to the body of the container, Tunnel Lift FIBCs require less headroom than conventional four-loop bags.
Tunnel lift bags are widely used in industries where fast loading, unloading, and transportation are essential, including agriculture, chemicals, minerals, construction materials, and food ingredients. Their simple yet robust design reduces handling time and improves operational efficiency in warehouses and production facilities.
The key evaluation discipline for tunnel lift bags concerns the stitching specification of the tunnel itself. Load is transferred from the loops through the tunnel seams to the body fabric over the full tunnel length, not at a single anchor point as with flat-sewn loops. That load distribution is the construction's strength, but it also means the SWL and safety factor test data must be specific to the tunnel construction — test certificates issued for a standard loop equivalent on the same fabric weight do not automatically apply. A thorough procurement audit confirms that the factory's test reports name the tunnel construction explicitly and that the rated SWL and safety factor (typically 5 : 1 and 6:1 for standard industrial; 5: 1 for food-grade or regulated applications) were derived from tunnel-specific drop and stacking tests per ISO 21898. Tunnel length and width also vary by order; these parameters affect both the clearance benefit achieved and the seam load concentration, so they belong in the enquiry specification from the start.
India is the primary global supply source for PP-woven flexible bulk bags, and tunnel lift bags are produced by specialised weavers with the controlled stitching tolerance this construction requires. India Pack is a B2B procurement intermediary — it sources from a network of 10+ audited FIBC manufacturers and does not manufacture. Its role on tunnel lift bag orders covers supplier matching to the buyer's headroom and load specification, factory-level audit review (ISO 21898 and food-grade where applicable), production oversight, and full export documentation. Over ten years and 25M+ bags supplied, the process is built around verifiable factory data, not catalogue approximations.
Which Type Do You Need?
| Your requirement | Recommended |
|---|---|
| Standard headroom, four lift points, general industrial or food use | Open Top / Discharge Spout Bag |
| Low-headroom environment — cold store, confined filling station, restricted mast height | Tunnel Lift Bag (this page) |
| Single lift point, low overhead clearance, simplified rigging | One Loop Bag |
| Liner required for moisture-sensitive or food products, standard lift | U Panel Bag with Liner |
| Spout top and discharge spout, standard headroom | Spout Top Discharge Spout Bag |
| Regulatory materials requiring UN-rated packaging | UN Bag with Spout |
Variants
Two-Tunnel Configuration
Two tunnels running opposite sides of the body, each carrying one loop end. Reduces loop count while retaining the low-profile lift geometry. Used where two-point sling lifting is standard practice.
- Best for
- Overhead crane sling lifts; two-point rigging environments
- Key spec
- Tunnel dimensions to order; SWL 500-2000 KGs; SF 5:1 or 6:1
With Liner
Tunnel lift bag with fitted PE or woven liner. Liner specification (thickness, top tie, bottom spout) to order. Standard for frozen goods or any product requiring moisture protection or flavour segregation.
- Best for
- Frozen food, food ingredients, hygroscopic materials in cold-chain environments
- Key spec
- Liner micron 60-120; food-grade material
Technical Specifications
| Parameter | Specification |
|---|---|
| Safe Working Load (SWL) | 500 KGs -2000 KGs |
| Safety Factor | 5:1, 6:1 |
| Body fabric | PP woven |
| GSM | 120-240 |
| Dimensions (L × W × H) | Custom to order |
| Bottom type | Flat bottom or discharge spout — to order |
| Top closure | Open top |
| Construction | Tunnel lift — loops threaded through sewn fabric tunnels in body panels |
| Lift loops | Four, PP webbing, tunnel-mounted |
| Tunnel length | Custom to order |
| Tunnel width | As per bag width |
| Liner | Optional — PE, micron, and spout to order |
| Coating | To order |
| Printing | Up to 4 colour — 4 sides |
| Fabric colour | Milky white / to order (MOQ apply) |
Industries & Applications
Cold Storage
What's packed: Frozen food products, frozen ingredients, ice, frozen vegetables.
Why this bag: Cold stores are built to minimise heat exchange volume; ceiling clearances are deliberately tight and racking structures compound the constraint. A tunnel lift bag reduces filled height by pulling the loop anchorage point down from the top edge of the bag, allowing forklift handling in aisles and bays where a standard four-loop bag would contact overhead structure or racking. Liner option is standard for food products requiring moisture isolation.
Construction Industry
What's packed: Sand, gravel, aggregates, cement, dry mortar, fly ash, minerals, construction chemicals, and other bulk building materials
Why this bag: Construction sites, batching plants, and material handling facilities often operate in environments where loading and unloading must be carried out efficiently using forklifts. Tunnel Lift FIBCs provide a lower lifting profile and allow direct forklift access through integrated fabric tunnels, making them ideal for warehouses, production facilities, and covered storage areas with limited overhead clearance. Their robust construction ensures safe handling of heavy construction materials while improving operational efficiency and reducing handling time.
Low-Headroom Warehousing
What's packed: Any bulk material handled in warehouses with restricted ceiling height or dense racking.
Why this bag: Warehouses converted from existing structures, or those using high-density racking, frequently have effective handling heights that fall below the clearance needed for a standard FIBC at full load. The tunnel lift bag was developed for precisely this scenario: the same packing, the same material, the same forklift — just a bag geometry that fits the available space.
Food Distribution
What's packed: Packaged food products, food-grade powders, frozen goods for distribution.
Why this bag: Distribution centres handling food products under cold-chain requirements combine hygiene standards with the same headroom constraints found in cold storage. Tunnel lift bags with food-grade liners and appropriate closure options serve this combination of requirements. Factory-level ISO 22000 or equivalent certification applies.
Customisation Options
Structural
- Two-tunnel or four-tunnel configuration
- Tunnel length and width — specify to match forklift tine dimensions or sling geometry
- Body dimensions (L × W × H) to order
- U-panel or circular body construction
- Loop webbing width and SWL to order
Functional
- Top closure: open top, Flap, Skirt
- Bottom: flat bottom or discharge spout
- PE Liner - Glued, Tabbed or loosely inserted
- Coating: coated or uncoated body fabric
Compliance
- ISO 21898 compliance — held at factory level; not an India Pack certification
- Food-grade material and liner specification — held at factory level
- ISO 22000 / FSSC 22000 for food-contact applications — held at factory level
- SWL and safety factor test data specific to tunnel construction — confirm test certificate names the tunnel variant explicitly before accepting standard loop test data
Branding
- Multicolour print on body panels — print count to order
- Natural, white, or custom fabric colour
- Label panel or document pocket option
Tell Us What You're Packing
Send us your SWL, tunnel dimensions (or headroom constraint), required bag dimensions, product type, and approximate annual volume. India Pack will source pricing from matched factories with tunnel-construction test data.
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