35 x 35 x 50 in bulk bag
A 35 x 35 x 50 in bulk bag is 61,250 cubic inches, 35.4 cubic feet or about 1,004 litres of box volume, so it is roughly a one cubic metre bag and the usual shape for a one-ton fill. A product at about 56.5 lb per cubic foot fills it to 2,000 lb, which covers granular fertilizer, sugar and many mineral powders at 2,000 or 2,200 lb SWL.
- Footprint
- 35 x 35 in
- Body height
- 50 in
- Box volume
- 61,250 cu in = 35.4 cu ft = 1,004 L
- Method
- 35 x 35 x 50 = 61,250 cu in, divided by 1,728 cu in per cu ft
Fill weight if filled to the box volume
Each row multiplies 35.4 cu ft by an assumed typical bulk density. A filled bag rounds out and settles, so the real fill differs: use your product's data sheet. Never fill past the SWL on the label.
| Product (assumed density) | Weight at 35.4 cu ft | Lightest common SWL that covers it |
|---|---|---|
| Plastic resin pellets (34 lb/cu ft) | 1,204 lb | 1,500 lb |
| Wheat flour (36 lb/cu ft) | 1,274 lb | 1,500 lb |
| Seed corn (45 lb/cu ft) | 1,593 lb | 2,000 lb |
| Granulated sugar (50 lb/cu ft) | 1,770 lb | 2,000 lb |
| Granular fertilizer (60 lb/cu ft) | 2,124 lb | 2,200 lb |
| Portland cement (90 lb/cu ft) | 3,186 lb | 3,300 lb |
| Gravel (95 lb/cu ft) | 3,363 lb | 4,000 lb |
| Dry sand (100 lb/cu ft) | 3,540 lb | 4,000 lb |
On the pallet
| Pallet | Room per side, empty footprint |
|---|---|
| 40 x 40 in | 2.5 in across, 2.5 in along |
| 48 x 40 in | 2.5 in across, 6.5 in along |
| 48 x 48 in | 6.5 in across, 6.5 in along |
Filled bags on a trailer floor
| Fill per bag | Bags, single stacked |
|---|---|
| 1,000 lb | 36 (2 across x 18 rows = 36 by floor; 44 by weight) |
| 2,000 lb | 22 (2 across x 18 rows = 36 by floor; 22 by weight) |
| 3,000 lb | 14 (2 across x 18 rows = 36 by floor; 14 by weight) |
Assumes a 53 ft dry van 630 x 100 in inside and a 44,000 lb payload; your carrier's limits and the bulge of a filled bag decide.
Just over a cubic metre
35 x 35 x 50 = 61,250 cubic inches. Divide by 1,728 and it is 35.4 cubic feet; multiply by 28.3 litres per cubic foot and it is about 1,004 litres. That puts it a hair over one cubic metre of box, which is why specs written in metric land on this size or close to it. The bag will not fill like a box, though. The walls round out and the corners stay soft unless it is baffled, so a real fill sits below the box number.
Work it backwards to see where the ton falls: 2,000 lb / 35.4 cubic feet = 56.5 lb per cubic foot. Anything denser reaches a ton before the bag is full; anything lighter fills the bag and stops short of a ton.
A spec written in centimetres for this bag reads about 89 x 89 x 127 cm, since 35 x 2.54 = 88.9 and 50 x 2.54 = 127.0. If a drawing arrives in metric, send it as drawn and we match the bag to it rather than rounding to the nearest inch.
Products either side of the ton
At the densities we assume, granulated sugar at 50 lb per cubic foot comes to 1,770 lb and granular fertilizer at 60 lb to 2,124 lb. Sugar sits under a 2,000 lb rating with room at the top. Fertilizer overshoots it slightly, so it either fills a 2,200 lb bag or stops at 2,000 lb a few inches below the brim. Seed corn at 45 lb is 1,593 lb, wheat flour at 36 lb is 1,274 lb and plastic pellets at 34 lb are 1,204 lb: all light enough that the bag is full well under a ton.
Heavy products turn the same bag into a part-full one. Portland cement at 90 lb is 3,186 lb of box and dry sand at 100 lb is 3,540 lb. A 2,000 lb cement fill needs 2,000 / 90 = 22.2 cubic feet, about 63 percent of the box. For cement and sand, the 35 x 35 x 35 or a higher SWL is usually the better buy.
Fill frame, discharger and trailer
A 50 in body is a little over four feet. Many fill frames set up for one-ton bags take this height; still, measure from the scale deck to the hook bar and subtract body, loops and top spout before you change sizes. At discharge, a bag this tall empties into the hopper as one column, and a spout bottom with a tie or a valve lets the line meter it out instead of dumping it all at once.
On the filling side, a spout top is tied around the nozzle with the bag hanging from its loops, and some fillers puff a little air in first so the body opens before product arrives. That inflation helps the corners fill out and cuts down on creases that trap powder.
Because so many fill lines expect this shape, it travels on lanes all over the country: fertilizer along the I-35 and I-80 corridors, sugar and ingredients on I-94 and I-75, resin and minerals out of the Gulf on I-10. The bag stays the same; bales per pallet, pallets per truck and the receiving dock change with each order.
The footprint is 35 in square: 2.5 in per side spare on a 40 x 40 in pallet before it bulges. In an assumed 53 ft van with 100 in of width and 630 in of length, two go across and 18 rows fit, so 36 floor spots. At 2,000 lb a bag, the 44,000 lb payload allows 22, which fills 11 rows and leaves 7 empty; the carrier decides how to spread them over the axles. At 1,204 lb of pellets, 36 bags weigh 43,344 lb, and floor and payload come out almost even.
What is usually sewn at this size
Because so many products sit near the ton line in this box, it is built in more variations than most sizes. Send the product and its density, the rating, the top and bottom, and where the fill line is. The bales, pallets and truck follow from those.
Label lines worth checking on delivery: SWL, safety factor, static type, the standard it was tested to, the maker's name and a production lot or date. A bag with no legible label is not one to fill.
Hygroscopic product such as some fertilizers and sugar pulls water from humid air, cakes, and then refuses to leave the spout. A liner tied off at the top, a coated body and storage away from open dock doors in summer humidity keep it free-flowing. Condensation in a cold trailer can do the same damage, so let chilled bags warm before they are opened.
- Spout top for closed filling of fertilizer, sugar and mineral powders
- Duffle top for products loaded from a chute or a conveyor
- Spout bottom for metered discharge; flat bottom where the bag is cut or tipped
- 2,000 lb or 2,200 lb SWL, at 5:1 for single trip or 6:1 where the bag is meant to go round again
- PE liner for flour, sugar or moisture-sensitive product; food work in new bags only
Questions
Is a 35 x 35 x 50 bag a 1-ton bag?
It is the usual shape for one. At 35.4 cubic feet of box, any product around 56.5 lb per cubic foot or denser reaches 2,000 lb before the top, but the ton comes from the SWL on the label, not the size, so order it at 2,000 lb or 2,200 lb SWL.
How many 35 x 35 x 50 bags fit on a trailer?
36 floor positions single stacked in an assumed 53 ft van. Filled to 2,000 lb, the 44,000 lb payload limit makes it 22 bags.
How many litres is a 35 x 35 x 50 bulk bag?
About 1,004 litres of box volume: 61,250 cubic inches / 1,728 = 35.4 cubic feet, times 28.3 litres per cubic foot. A filled bag holds a little less because the sides round out.
Request 35 x 35 x 50 in bags
Add the top, the bottom, the SWL and the count. We confirm the spec and plan the load to your dock.