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Tunnel Lift FIBC Bag Supplier India | India Pack

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.

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.

Request a Quote Send Your Specifications

Overview

A tunnel lift bag — also called a tunnel loop FIBC, sleeve loop bag, or through-loop bag — is a bulk bag whose four lift loops run through fabric sleeves (tunnels) sewn into the body panels, rather than being stitched directly onto the exterior fabric. The practical effect is a reduction in the bag's effective lift height: the loops emerge from the tunnel closer to the load plane, lowering the overall loaded height by the amount the tunnel moves the loop anchorage point down from the top edge. That geometry makes the tunnel FIBC the standard specification for cold stores, confined filling stations, and any warehouse or processing line where forklift mast height or overhead structure limits how high the bag can hang during lifting. Procurement managers in food processing, frozen goods distribution, and low-headroom cold-chain logistics specify this construction specifically because it fits environments where a standard four-loop FIBC would contact overhead structures or conveyor frames at the filled height.

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 [FILL] : 1 for standard industrial; [FILL] : 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 [VERIFY per factory]), 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

Four-Tunnel Configuration

Four fabric tunnels, one per body corner, each carrying an independent lift loop. Standard configuration for balanced four-point lifts on forklift tines or spreader beams.

Best for
Cold stores and filling stations with four-tine fork handling
Key spec
Tunnel length and width to order; SWL [FILL]; SF [FILL]:1

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 [FILL]; SF [FILL]: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 [FILL]; food-grade material [VERIFY per factory]

Without Liner

Bare PP woven body with tunnel loops. Standard for dry, non-hygroscopic materials where liner cost and weight are not justified.

Best for
Dry chemicals, minerals, aggregates in low-headroom handling environments
Key spec
Body GSM [FILL]; SWL [FILL]; SF [FILL]:1

Technical Specifications

Parameter Specification
Safe Working Load (SWL)[FILL]
Safety Factor[FILL]:1
Body fabricPP woven
GSM[FILL]
Dimensions (L × W × H)Custom to order
Bottom typeFlat bottom or discharge spout — to order
Top closureOpen top, spout top, or fill spout — to order
ConstructionTunnel lift — loops threaded through sewn fabric tunnels in body panels
Lift loopsTwo or four, PP webbing, tunnel-mounted
Tunnel lengthTo order [FILL typical range]
Tunnel widthTo order [FILL typical range]
LinerOptional — PE or woven, micron and spout to order
CoatingTo order
PrintingUp to [FILL] colour — to order
Fabric colourNatural / white / to order

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 [VERIFY per factory for food-grade compliance].

Food Processing

What's packed: Food ingredients, powders, granules, frozen food components.

Why this bag: Processing lines often incorporate filling stations beneath conveyors or within enclosed filling frames where vertical clearance is constrained by the equipment itself. The tunnel construction lowers the loop profile during hang, fitting within the headroom envelope of automated or semi-automated filling equipment. Suppliers holding food-grade certification can supply this construction to food-contact standards [VERIFY per factory].

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 [VERIFY per factory].

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, fill spout, spout top
  • Bottom: flat bottom or discharge spout
  • PE or woven liner — micron, top tie or spout, food-grade material option
  • Coating: coated or uncoated body fabric
  • Baffles available for form-stable filling profile (confirm with factory on tunnel geometry compatibility)

Compliance

  • ISO 21898 compliance — held at factory level; not an India Pack certification [VERIFY per factory]
  • Food-grade material and liner specification — held at factory level [VERIFY per factory]
  • ISO 22000 / FSSC 22000 for food-contact applications — held at factory level [VERIFY per factory]
  • 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 [FILL max colours]
  • 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.

Request a Quote Send Your Specifications

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Why source through India Pack

Full transparency — you always know your manufacturer

Once commercials are finalised, we disclose the details of the manufacturing facility producing your order. If you prefer a multi-facility portfolio strategy, we share the details of each qualified facility we've matched to your specifications.

The purchase order is raised directly in the name of the manufacturing facility — not India Pack — so there's no ambiguity about who is producing your goods. On request, we'll also arrange a direct introduction with a key contact at the facility.

We don't hide the factory behind us. You see exactly who you're buying from, and we earn our place by managing the relationship, the quality, and the documentation around it — not by controlling access to it.

Scale that works in your favour

We don't represent one buyer to one factory. India Pack brings a portfolio of buyers to a network of manufacturing facilities, and sitting in that position is what gives every buyer we work with an advantage they couldn't get alone.

It shows up first in capacity. At select facilities we hold dedicated production lines; across the rest of the network, the volume we place earns us priority. For you, that means your order isn't queued behind a factory's larger customers, and a busy season doesn't push your delivery date out.

It shows up in price. The combined volume we place gives us negotiating weight that most individual buyers can't match, so the quote you receive is competitive on a like-for-like specification — one you can hold directly against your existing suppliers and judge on the same terms.

It shows up most when something goes wrong. A factory settling a claim isn't weighing one order against the cost of fixing it; it's weighing the relationship with everything we bring them. That's the difference between a claim that drags and a claim that gets settled.

And because we're in these facilities every day, we know first-hand which one excels at a given specification, which to avoid for a particular material, and where quality actually holds. It's why we can match your bag to the right factory the first time.

The right bag, at the right weight — and the right price, every time you reorder

A bulk bag's cost is driven largely by how much fabric goes into it. Over-specify the weight and you pay for material you don't need; under-specify it and the bag fails in handling. We engineer each bag to the optimum fabric weight for your actual load and handling conditions — strong enough to perform reliably, without the cost of over-built material you'll never use.

We benchmark that specification across our facility network so your first quote is competitive — sharp because the bag is specified correctly, not because it's cut short. And we keep benchmarking on every reorder. Raw material prices move, and so should your price — down as well as up. You won't find a low opening quote that quietly drifts upward once the relationship is established. The price stays honest because we keep checking it against the market, order after order.

Transparent pricing, no separate fees

You don't pay India Pack a separate service fee or commission. We act as your level-one procurement office in India, and our pricing is all-inclusive — so you can compare our quote directly against your existing suppliers, like for like. What you save is in the price, not in a separate line item.

Order flexibility — build a container on your terms

You don't have to place a full-container order all at once, or commit to a single bag specification. Within an order you can mix specifications, and we select facilities capable of producing the range you need — so a single container can carry the mix your operation actually requires.

You can also build a container over time. Place orders as your requirement firms up, and we'll keep the container open — with the price of each order locked at the point you place it — until the load is complete. You're not forced to forecast a full container in one go or accept a price that moves while you wait.

Two practical limits keep this clean: we hold a container open for up to 20-25 days from your first order, and dispatch lead times begin once the container composition is final and the load is full. For procurement teams used to committing to full single-spec containers upfront, that flexibility removes both the forecasting pressure and the risk of over-ordering.

Factory access without factory risk

India Pack maintains active sourcing relationships with 10+ FIBC manufacturers across India. When a factory hits a capacity constraint or a quality issue, we give you the option to switch production without interrupting your supply. You don't restart vendor qualification from scratch — we carry that burden for you.

Documentation managed end to end

We manage the complete export documentation set — commercial invoice, packing list, certificate of analysis, SWL test certificates, packing inspection report, and any third-party inspection reports — so your import clearance proceeds without delays or amendment requests. We have supported buyers in Europe, USA, Canada, Middle East, Australia, and New Zealand across food processing, chemicals, construction and mineral trading.

Send us your specs and we'll come back with supplier options and a quote. Don't have them finalised? Tell us what you're packing and where it's going — we'll help you build the right specification. Distributors or end-users, you bring the requirement and we handle the supply.

Send Your Specifications

Frequently Asked Questions

We are a sourcing partner, not a factory. We connect you to a network of audited Indian manufacturers, match each order to the right plant, and manage specification, quality, and shipment on the ground.

Yes. For custom branding, we review your artwork files for resolution, print alignment, and fit to the bag geometry. If you don't have technical drawings or layouts ready, our team drafts the bag specification sheets and print-ready layouts for your approval.

We treat your designs, artwork, and intellectual property as confidential. Confidentiality terms are enforced down the supply chain with our manufacturing partners in India.

We provide free prototype samples of standard or readily available fabric specifications for your evaluation and physical testing, shipped through international couriers such as DHL, FedEx, UPS, DPD, or Interparcel.

We provide up to 2 samples completely free of cost, with courier included. Beyond that, additional samples remain free of charge and you cover only the courier.

Standard manufacturing lead time for an initial order is 5–8 weeks from final artwork and specification sign-off, with advance payment or LC opening. Repeat orders with identical specifications often run faster, as plants pre-schedule production blocks and keep printing plates ready for mounting.

Bags are hydraulically compressed, wrapped in moisture-resistant, UV-stabilised PP sheets, and bound with high-tensile bands for long transit. Each bale carries multi-sided, waterproof labels showing your PO number, bag specifications, quantities, and weights.

Average full-container transit times are 35–45 days to Europe (via the Cape), 30–40 days to the US East Coast, 35– 45 days to the US West Coast and New Zealand, and 45–55 days to Latin America. Actual schedules vary with seasonal carrier routing and whether the load is FCL or LCL. We keep you posted about the status of the shipment

Air blowing and suction remove loose PP fragments and dust using filtered, oil-free compressed air and vacuum extraction. Light-table inspection checks every seam against backlighting to catch dropped stitches, pinholes, or weave defects. if specified we run Bags though Metal detection to confirm no embedded needle fragments or metallic tools remain.

In case of a claim we are your representative to the company, We review production records alongside your photos or videos to identify the root cause. If a manufacturing defect is verified, we issue a credit or replacement and update factory protocols to prevent recurrence.

Our facilities run in-house load tests on every production run. Certified test reports and label proofs are sent to you for verification and approval before dispatch. We share pre production bag photos to confirm that bags are being mass produced as per your specification. This would include Safety Label, Print artwork, Pre production Print Panel, Printing, Bag dimensions, accesories

We provide high-strength overlock and safety stitching, along with double-needle stitching options based on your application and handling needs. Because stitching directly dictates the bag's Safe Working Load (SWL), every seam meets industrial safety standards.

Yes, we supply both J-fold and Butterfly-fold edge construction depending on your facility's filling infrastructure.

We offer single, double, and triple sift-proofing, using high-density filler cords and non-woven felt layers sewn directly into the seams to plug needle holes. For ultra-fine or hygroscopic materials, we can integrate heavy-duty polyethylene (PE) internal liners for dust-proof and moisture-proof security.

Yes, we source food-grade and pharmaceutical-grade big bags produced in BRCGS-certified cleanroom facilities that meet US FDA and European standards. These bags undergo pest control, metal detection, and hygiene audits to support contamination control for sensitive ingredients.

Type A bags provide no static protection and suit non-flammable materials. Type B bags prevent propagating brush discharges but are not rated for flammable solvent or gas atmospheres. Type C (conductive) bags use interconnected conductive threads and must be grounded during filling and discharge. Type D (dissipative) bags safely release charge into the air without a ground connection.

Yes, we offer full design flexibility including duffel tops for easy manual filling, open tops, and conical discharge spouts for sticky or sluggish materials. Our technical team matches the bag's openings to your filling and discharging equipment.

Our standard loop colours are white, blue, and black. We can provide other colours free of charge if currently in stock. For custom, Pantone-specific colours, a minimum order quantity (MOQ) of 2 MT applies.

A B-Lock (or cord lock) is a heavy-duty plastic or metal locking device attached to the tie-strings of a bag's spout, usually the discharge spout. It lets operators lock the spout closed and adjust or release it during emptying without untying tight knots.

A Hose Slider is a closure mechanism that regulates or completely stops material flow through the discharge spout. It works by sliding a rigid bar or collar over the spout to pinch it shut, giving operators precise control when partially emptying a bag.

We supply to your required safety factor. Industry standard is 5:1 for single-trip bags and 6:1 for multi-trip bags, with UN-certified bags for dangerous goods built to a 6:1 minimum.

Single-trip bags are designed for one filling and discharge cycle and are the most cost-efficient choice for one-way shipments. Multi-trip bags use heavier GSM fabric and a higher safety factor for repeated reuse. We match the construction to how the bag will be used.

Yes. We add UV stabilisers to the fabric for bags stored or handled outdoors, rated to 200 KLY to 350 KLY.

Baffle bags have internal fabric panels at the corners that hold the bag's square shape when filled, so it doesn't bulge. That lets you load more product per pallet and stack more stably in containers and warehouses. See our Baffle FIBC page for full specifications.

Coated (laminated) fabric adds a moisture and sift barrier and suits fine or hygroscopic powders. Uncoated fabric allows the bag to breathe, which suits products that need ventilation such as some agricultural goods. We recommend based on your product.

We offer loose, form-fit, and tubular polyethylene liners, EVOH liners, plus aluminium-foil liners for moisture- or oxygen-sensitive products. The liner type depends on your product's barrier needs.

The most common sizes are A4 (full-page documents and manifests) and A5 (smaller labels and barcodes). Custom sizes can also be made. Two closure options are available:
  • Standard Flap: a top or side opening with an overlapping flap to keep out dust.
  • Ziplock (resealable): maximum protection against rain, moisture, and grime.

The minimum order quantity for coloured fabric is 3 MT. A specific Pantone colour number is always required for production.

We produce woven PP fabric across a range of weights to match your strength and cost needs, from 55 GSM to 240 GSM additional coating 30 gsm

Yes. We source BOPP-laminated woven bags with high-definition print for consumer-facing and retail-grade packaging, giving sharp graphics and a moisture barrier in one structure. MOQ's apply