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| Brand Name: | SINOPACK |
| Model Number: | SINA26011 |
| MOQ: | 1000PCS |
| Price: | Negotiable |
| Delivery Time: | 30dAYS |
| Payment Terms: | T/T |
After a Mineral FIBC Bulk Bag is filled, its lifting loops connect the body to a forklift or another suitable lifting system. When the bag leaves the ground, the material load is transferred toward the loop attachment areas.
If the loop positions, effective lengths or equipment contact surfaces are unsuitable, the four loops may not become loaded at the same time. An early-loaded loop can experience a higher local force.
This mineral FIBC uses four soft side-seam lifting loops. The loops extend down the sides of the bag and are sewn together with the body.
The production sheet specifies lifting-strap strength of ≥18000 N. The complete lifting application must still consider the test method, safety factor, attachment structure and lifting equipment.
A four-loop construction does not guarantee that every loop will carry exactly 25% of the load.
Differences in loop length, material distribution, forklift position and bag orientation can change the moment at which each loop becomes tensioned.
If one loop is shorter, it may become tight before the remaining loops. Until the other loops fully engage, the shorter loop and its attachment area may experience a greater proportion of the load.
Off-centre filling creates a similar condition. Where mineral material is concentrated toward one side, the loops on that side may experience different forces.
A proper assessment must therefore cover loop quantity, length consistency, installation position, material distribution and lifting practice.
The loops are installed along the side seams. They run downward from the top and are sewn together with the bag body.
This construction creates an extended connection between the loop webbing and the side panel. Lifting forces can enter the body along the side-seam area instead of being concentrated only around the upper edge.
Actual performance still depends on the downward extension, stitch density, sewing thread and integrity of the attachment seam.
The production sheet lists the loop size as 7 × 145 cm. The 7 cm value can be interpreted as the webbing width, while the meaning of 145 cm should be confirmed as a cutting dimension.
The webbing width provides a contact area for forklift tines or lifting hooks. However, width alone cannot prevent damage from unsuitable equipment.
Burrs, sharp tine edges and a small contact radius can still cut, fold or abrade the webbing.
The lifting straps are specified with ≥18000 N strength and a linear weight of 50 g/m.
This value should be presented as a specified strap requirement. The current document does not identify the detailed test standard, specimen length or sampling procedure.
The values from four loops must not simply be added together and converted into complete-bag capacity. The assembled bag is also affected by attachment seams, body fabric, lifting angle and safety factor.
| Technical item | Specification | Relevance to lifting |
|---|---|---|
| Number of loops | Four | Provides four lifting points |
| Loop type | White soft webbing | Connects with compatible equipment |
| Loop size | 7 × 145 cm | Cut and effective length should be confirmed |
| Loop linear weight | 50 g/m | Defines webbing configuration |
| Loop strength | ≥18000 N | Minimum specified strap requirement |
| Loop installation | Side-seam construction | Connects along the side panels |
| Body seam | Outward-folded double-needle chain stitch | Joins the body and seam areas |
| Body fabric | 180 g/m² uncoated fabric | Main body material |
| Warp strength | ≥1600 N | Longitudinal fabric requirement |
| Weft strength | ≥1600 N | Lateral fabric requirement |
| Bag dimensions | 90 × 90 × 90 cm | Affects filled shape and load position |
| Specified load capacity | 1200 kg | Defines the intended filling limit |
| Approximate bag weight | 1.2 kg | Supports empty-bag handling calculations |
No complete-bag safety factor is identified in the available information. These specifications should not be used to claim 5:1, 6:1, repeat-use or UN dangerous-goods performance.
Forklift tines should be raised slowly so that the four loops become tensioned progressively.
The operator should check whether one loop becomes tight significantly earlier than the others, whether another remains loose or whether the bag leans toward one side.
If loading is clearly uneven, the bag should be returned to the ground. Loop twisting, tine position and off-centre filling should then be inspected.
After the bag leaves the ground, it should be transported at a low practical height. Sudden acceleration, braking and rapid turning should be minimized.
Dynamic swinging changes the forces applied to the lifting loops. Static component specifications do not automatically describe every dynamic handling condition.
Personnel must not stand below a suspended bag. A filled bag should not be dragged or repositioned using only one loop.
The bag should be placed on a level surface free from sharp projections. Forklift tines or hooks should be removed only after the bag is fully supported and the loop load has been released.
Pulling equipment out while the loops remain loaded can produce high friction against the webbing.
After handling, loops should be inspected for cuts, excessive abrasion, permanent elongation and opening of the attachment seams.
The four-loop construction can be used with compatible forklifts for transferring filled bags of verified dry ore or mineral granules.
Forklift dimensions should be compared with the loop opening and effective height. The loops should not be forcibly stretched to fit unsuitable equipment.
The loops can be arranged while the bag is fully supported on the ground. All four loops should remain visible and free from severe twisting before the next lift.
Storage arrangements should not trap the loops beneath other bags or pallets. Forced pulling of hidden loops may damage the webbing or place personnel close to an unstable load.
Vehicle loading requires sufficient overhead clearance, forklift turning space and consideration of the filled-bag dimensions.
The loops should not remain compressed against vehicle edges, restraint systems or adjacent cargo. An external inspection should be completed before lifting the bag after transport.
Provide the forklift tine width, thickness, length and spacing. Confirm that the effective loop opening is compatible with the actual equipment.
For lifting hooks, the contact radius and retention design should also be reviewed to avoid a highly concentrated contact point.
The 145 cm value should not be marketed as loop height until its meaning is confirmed. Cutting length, sewn-in length and free height above the bag are different measurements.
Equipment compatibility depends on the installed loop opening rather than only the original webbing length.
The buyer should state whether the bag will be handled using a forklift, lifting hooks, a lifting beam or another system.
If the equipment can engage only one or two loops, the standard four-loop design should not be assumed suitable. A different lifting configuration may be required.
Single-trip and repeat-use operations require different safety factors, test programs and inspection procedures.
Where repeated lifting is required, cyclic testing and discard criteria should be defined before production.
The ≥18000 N strap value is a component specification. Purchasing requirements should also address loop attachments, complete-bag lifting and tests at the target load.
Dangerous-goods transport additionally requires the applicable UN packaging code and complete supporting documentation.
