Single Loop FIBC Bags with 5:1 safety factor, 500-1500 kg SWL, and full customization

Looking for a reliable single loop FIBC bags supplier that combines cost-efficiency with uncompromised safety? You’ve come to the right place.

At FIBC Bag Factory, we manufacture high-quality single loop bulk bags designed for one-person handling, rapid filling operations, and heavy-duty industrial applications. Whether you need one loop bags for fertilizers, chemicals, cement, or pellets, our factory-direct pricing and full customization capabilities make us the partner you can trust — shipment after shipment.

Contact us today to request a sample or discuss your custom requirements.

What Is a Single Loop FIBC Bag?

A single loop FIBC bag (also known as a one loop bulk bag or single loop big bag) is a flexible intermediate bulk container characterized by a single lifting loop integrated into the bag’s body. Unlike traditional four‑loop designs, the body fabric itself extends upward to form the lifting loop, eliminating the need for separately sewn loops. This design reduces material usage, lowers manufacturing costs, and significantly speeds up filling and handling operations — especially when using overhead hook‑based filling systems.

Key advantages at a glance:

• One-person operation – No second worker needed to attach multiple loops to the loader hook.

• Faster filling cycles – Single‑point suspension enables quick changeovers in automatic filling lines.

• Lower cost per bag – Less fabric and sewing compared to four‑loop designs.

• Excellent strength‑to‑weight ratio – Integrated construction delivers high breaking strength without added weight.

Key Features of Our Single Loop Bags

Our single loop FIBCs are manufactured from 100% virgin polypropylene with advanced UV stabilization, ensuring long‑term durability even under outdoor storage conditions. Every bag is backed by rigorous in‑house and third‑party testing to guarantee your operation’s safety and efficiency.

Customization: Tailored to Your Exact Needs

No two bulk material handling operations are the same. That’s why every single loop bag FIBC we produce can be fully customized to match your product’s characteristics and your handling equipment.

What we can customize for you:

• Handle color and fabric color – Match your branding or create color‑coded identification across different product lines.

• Printing – Up to 5 colors for logos, safety warnings, handling instructions, or batch information.

• Safety factor – Choose 5:1 (single‑trip) or 6:1 (multiple‑trip / hazardous goods).

• SWL – From 500 kg up to 1,500 kg, matched to your filling process.

• Fabric weight – 95 to 170 g/m² to balance strength and cost.

• Dimensions – Flat width from 1,200 mm to 1,900 mm; finished length from 1,700 mm to 2,350 mm.

• PE liner thickness – 70 µm to 100 µm for moisture protection and product containment.

• Liner closure – Closing rope, flat tie, or closing plastic ring (depending on liner type).

• Packaging format – Palletized (600–700 pcs/pallet) or on‑roll for automated filling lines.

• UN certification – Available for hazardous materials (6:1 safety factor, required for dangerous goods transport).

Need a special adjustment? Let’s talk. Whether it’s a custom spout design, a specific liner configuration, or a unique print layout, our engineering team will work with you to deliver exactly what you need — on time and on budget.

Technical Specifications

Standard safety factor 5:1 explained: A 5:1 safety factor means the bag has been tested to withstand five times its Safe Working Load. For a bag rated at SWL 1,000 kg, it has been tested under controlled conditions to hold 5,000 kg. This ensures a generous margin of safety for single‑trip applications.

For hazardous materials requiring UN certification, the required safety factor increases to 6:1, with additional testing (drop, stacking, vibration, tear) and annual recertification. Contact us to determine which rating applies to your product.

Applications: Where Our Single Loop Big Bags Excel

Our single loop big bags are trusted by customers worldwide across a wide range of industries. The single‑loop design is particularly valued in operations where filling speed and ease of handling are critical.

Chemical industry – Fertilizers, herbicides, pellets, hazardous materials, powders, polymer granules, pigments, and other chemical products requiring secure containment and safe transport.

Agriculture – Cereals, seeds, feed, fodder, and grains. The optional PE liner provides excellent moisture protection, preserving product quality during storage and transit.

Construction & mining – Cement, sand, minerals, aggregates, and other heavy bulk materials where rugged durability is non‑negotiable.

Food industry – Food‑grade options available for ingredients, grains, and other edible bulk products (compliant with applicable food contact regulations).

Recycling & waste management – Briquettes, recyclables, and industrial waste materials requiring cost‑effective bulk packaging.

“Mostly used for packing fertilizer (e.g. Urea) and in the chemical industry, but is also used for packing various types of grains, seeds, briquettes, pellets, cement and other materials.”

Our one loop bags have become the packaging solution of choice for fertilizer producers, chemical manufacturers, and agricultural cooperatives worldwide — because they deliver reliable performance at a competitive price point.

Why Choose FIBC Bag Factory as Your Single Loop FIBC Bag Supplier?

With decades of experience in FIBC manufacturing and a dedicated in‑house engineering team, we don’t just produce bags — we solve packaging challenges.

• ISO 9001:2015 certified facility – Rigorous quality management at every stage, from yarn extrusion to final inspection.

• Factory direct pricing – No middlemen. You pay only for the bag — not for distribution markups.

• Full customization – Colors, printing, dimensions, liners, safety factors — anything you need, we can deliver.

• UN certification available – For hazardous materials requiring compliance with international dangerous goods transport regulations.

• Short lead times – Large production capacity and strategic material sourcing ensure your order is ready when you need it.

• Global shipping – We export worldwide to Europe, North America, South America, the Middle East, Africa, and Asia.

• Free samples available – Test our quality before you commit. Request your sample today.

Sustainability

Our polypropylene single loop FIBC bags are fully recyclable, helping you meet your sustainability goals without compromising on performance. We also offer lightweight fabric options that reduce material consumption while maintaining full strength, further lowering the carbon footprint of your packaging operations.

Quality Assurance & Certifications

Safety and quality are built into every bag we make — not tested in afterthought.

All our single loop FIBC bags undergo comprehensive testing, including:

• Top lift test – Verifies the bag can handle its rated SWL without deformation.

• Stacking test – Confirms stability and safety when bags are stacked in storage or transit.

• Drop test (for UN‑certified bags) – Ensures integrity under impact.

• Vibration test (for UN‑certified bags) – Simulates transport conditions.

UN certification note: If you are transporting hazardous materials (flammable powders, toxic chemicals, reactive substances), you will require UN‑certified bags with a 6:1 safety factor. Contact us to determine whether your application requires UN certification.

Packaging & Logistics

We understand that logistics efficiency matters as much as product quality. That’s why we offer multiple packaging options to suit your filling line configuration.

Standard packaging (palletized):

• 600 – 700 pieces per pallet

• 23 – 24 pallets per standard 40‑ft truckload

On‑roll packaging:

• Ideal for automated filling lines

• Bags wound onto rolls for continuous feeding

• Enhances filling speed and reduces manual labor

Whether you need palletized bags for manual filling or roll‑packed bags for fully automated systems, we deliver a solution that fits your operation — not the other way around.

Frequently Asked Questions (FAQ)

Q1: What is the difference between single loop and four loop FIBC bags?

A: Single loop bags are constructed from a single piece of tubular fabric where the body extends upward to form the lifting loop, eliminating separate loop sewing. This design reduces material cost, speeds up filling, and allows one‑person operation. Four‑loop bags have four separate corner loops and are typically used when forklift handling is preferred or when the filling system requires four lifting points.

Q2: What safety factor do I need — 5:1 or 6:1?

A: A 5:1 safety factor (bag tested to hold 5× SWL) is standard for single‑trip, non‑hazardous applications. A 6:1 safety factor is required for UN‑certified bags used to transport hazardous materials and is also recommended for multi‑trip applications. Contact us with your specific product details — we’ll help you choose the right safety factor.

Q3: Can you print my logo on the single loop big bags?

A: Absolutely. We offer printing in up to 5 colors depending on bag type and construction. Your logo, safety instructions, handling diagrams, and batch information can all be printed directly on the bag.

Q4: Do your bags come with a PE liner?

A: Yes. PE inliners are available with thickness options from 70 µm to 100 µm. We offer loose inserted tubular liners (the most economical choice), formliners with shaped inlet/outlet spouts, and suspended formliners fixed to the loops to prevent movement inside the bag. Liner closures can be supplied with closing rope, flat tie, or plastic ring.

Q5: Are my bags UN‑certified?

A: Standard single loop FIBC bags are produced according to ISO 21898 with a 5:1 safety factor. If you require UN certification for hazardous materials transport, we can manufacture UN‑certified bags with a 6:1 safety factor and the required UN markings. Please specify UN certification requirements when requesting a quote.

Q6: What is your minimum order quantity (MOQ)?

A: MOQ depends on bag specifications and customization level. Generally, MOQ starts from 2,000 pieces for standard designs. Contact us with your requirements — we’ll provide a competitive quote with transparent MOQ and lead time.

Q7: Do you offer free samples?

A: Yes. We provide free samples of our standard single loop bag FIBC so you can evaluate material quality and workmanship before placing a production order. Shipping charges may apply. Request yours today.

Q8: How are the bags packaged for shipping?

A: Bags can be shipped either palletized (600–700 pcs/pallet; 23–24 pallets per full truck) or on‑roll for automated filling lines. Tell us your preferred packaging format when you place your order.

Q9: Can you adjust fabric weight, dimensions, or liner thickness to my specific needs?

A: Yes. We are a custom manufacturer, not a reseller of standard stock. All parameters — fabric weight, flat width, body length, liner thickness, and more — are customizable to your exact requirements. No “one size fits all” compromises.

Q10: Where do you ship?

A: We ship worldwide to customers across Europe, North America, South America, the Middle East, Africa, and Asia. Contact our logistics team for a shipping quote to your port or door.

Get a Quote for Your Single Loop FIBC Bags Today

Ready to upgrade your bulk packaging with reliable, factory‑direct single loop bulk bags? Request a quote or a free sample by filling out the contact form below. Our team will respond within 24 hours with detailed specifications, pricing, and lead times.

• Send us your requirements – SWL, dimensions, safety factor, liner preference, printing artwork, and any special needs.

• We’ll design a solution – Our engineers will recommend the optimal configuration for your product and handling system.

• You receive a competitive quote – Factory direct pricing, transparent terms, and on‑time delivery.