The sewing process of polypropylene or polyester yarn is mainly used to increase the load-bearing capacity of the bag, which is more durable than ordinary ones.
Size :90*90*100cm /100*100*120cm/110*110*150cm accept customer require size
Capacity : 1000 KG -2500 KG
Top: top full open/skirt/spout
Bottom:flat bottom/spout
4 lifting belt: 4 at the top
The sewing process of polypropylene or polyester yarn is mainly used to increase the load-bearing capacity of the bag, which is more durable than ordinary ones.
Safety Factor: 3:1, 5:1, 6:1, 8:1
Manufacturing: Drawbench — weaving — cut — sew — test — package
Application: Industrial/Chemical/Agriculture/Agricultural Products/Food/Food Additives/Logistics Transportation
Minimum Order Quantity: 500 PCS
Supply Ability: 100000/PCS
1. Product & Craft Questions
Q1: What is lockrand side stitch on a ton bag?
A: Lockrand stitch is a special interlocking sewing process on the bag’s side seams. It tightly locks the woven fabric edges to prevent fraying, powder leakage and seam tearing, much stronger than ordinary single-line stitching.
Q2: Why choose side lockrand stitch FIBC instead of normal sewn bulk bags?
A: Side lockrand stitching reinforces the whole side panel. It avoids fine material leaking from side gaps, improves tensile strength, suitable for powdery, fine granular materials and heavy-load transport.
Q3: Can you do double lockrand stitching on the sides?
A: Yes, we support single lockrand stitch and double lockrand stitch sides according to your load and material requirements. Double lockrand offers better leakproof and tensile performance.
2. Material & Parameter Questions
Q4: What material are your lockrand stitch ton bags made of?
A: Standard material is new virgin PP woven polypropylene fabric. We can add inner PE liner, UV treatment, anti-static coating, food-grade FDA material on request.
Q5: What load capacity can lockrand side stitch jumbo bags hold?
A: Conventional load ranges from 500kg to 2000kg. Lockrand side sewing greatly enhances side seam bearing force, perfect for 1 ton, 1.5 ton and 2 ton heavy-duty bulk bags.
Q6: Are lockrand stitch FIBCs food safe for grain, flour or feed?
A: We provide food-grade lockrand ton bags with FDA certification, equipped with leakproof lockrand side seams and food-grade PE inner liner, safe for food, grain and animal feed packaging.
3. Leakproof & Application Questions
Q7: Will fine powder leak out from lockrand side seams?
A: Lockrand interlocking stitch wraps fabric edges fully, effectively blocking tiny gaps. Matching with PE inner liner achieves full leakproof performance for cement, flour, mineral powder, chemical powder.
Q8: What industries are side lockrand stitch ton bags widely used in?
A: Construction (sand, cement), mining (ore powder), agriculture (grain, feed), chemical raw materials, plastic granules, mineral salt, fertilizer and other bulk solid storage & transport.
4. Customization & Order Questions
Q9: Can I customize size, lifting loops and top/bottom structure for lockrand stitch bulk bags?
A: Fully customizable. We adjust bag dimensions, lifting belts (4 loops/2 loops), top filling spout, bottom discharge spout, full open top, flat bottom, printing logo and color. The lockrand side stitch craft remains unchanged as requested.
Q10: Is custom logo printing available on lockrand FIBCs?
A: Yes, we can print brand name, specifications, warning marks on bag surface with 1–4 color printing, no influence on the side lockrand stitching quality.
5. Quality & Durability Questions
Q11: How to test the quality of lockrand side seams?
A: We conduct tensile testing for side seams before delivery. Lockrand stitch seams can withstand over 3 times the bag’s rated load without splitting or unraveling fabric edges.
Q12: Are lockrand stitch ton bags reusable?
A: Yes, virgin PP fabric + lockrand reinforced sides have good wear resistance. They can be reused multiple times if without sharp object piercing during loading/unloading. UV stabilized type fits outdoor repeated storage.
6. Shipping & MOQ Questions
Q13: What’s your minimum order quantity for lockrand side stitch ton bags?
A: Standard MOQ is 500 pcs. Small trial orders are acceptable after communication, with unit price adjusted accordingly.
Q14: How are lockrand FIBCs packed for shipment?
A: All bags are folded flat and packed in PP woven bales, compact packaging to save container space, suitable for full container load (FCL) 20GP/40GP orders.


