Hydraulic Hose for Forklifts

Mast circuits decide it on fit, not pressure. At 3/8 inch the single-braid code is 18.0 MPa at 0.27 kg/m and the double-braid is 33.0 MPa at 0.43 kg/m, both bending to 90 mm. Tilt and side-shift run far below 180 bar, so the lighter body is the better hose.

Same pressure, less space. At 1/4 inch both are rated 22.5 MPa, but this body measures 13.2 mm outside and bends to 75 mm, against 14.1 mm and 100 mm for the standard single-braid. On a mast that 25 mm is the whole argument.

The 10 mm code is rated 18.0 MPa (180 bar, 2,611 psi) with 72.0 MPa (720 bar) minimum burst. Minimum bend radius is 90 mm, mass is 0.27 kg/m, and the outside diameter runs 15.1 to 16.5 mm.

The 12.5 mm code is rated 16.0 MPa (160 bar, 2,321 psi) with 64.0 MPa (640 bar) burst. Bend radius is 130 mm, mass is 0.35 kg/m, and the outside diameter is 20.3 mm — the size where the line usually leaves the mast.

1/4 inch for tilt on most trucks, at 22.5 MPa with a 75 mm bend, and 3/8 inch for side-shift where the flow is higher. Both sit far inside the pressure rating; the choice is made on the channel.

Only at the 1/2 inch code, which is rated 16.0 MPa (160 bar). Lift pressures on a 2.5 tonne truck sit well under that, but the lift line is usually the one that leaves the mast, so 130 mm of bend radius has to be available at that point.

Because the hose folds and unfolds a hundred times a shift against a steel channel. On a 3/8 inch line at 0.27 kg/m the cover wears first, then the braid, and a line that has lost its cover at the fold is a line that will fail inside the month. A sleeve at the fold costs less than a stopped truck.

Because the failure is geometric, not pressure. At 1/4 inch the minimum bend is 75 mm; force the line tighter and the bore ovalises, the tilt cylinder responds slowly and the operator blames the pump. Lay it out at 90 mm and the symptom disappears.

YIBO, in Luohe, Henan, supplies the compact single-braid range in 4 codes from 6.3 mm to 12.5 mm, all crimped and proof-tested in-house, with a bend radius from 75 mm and mass from 0.18 kg/m.

Price follows the body: 0.18 kg/m at 1/4 inch, 0.27 kg/m at 3/8 inch, 0.35 kg/m at 1/2 inch. Mast lines are usually bought as a kit per truck, so send the model, the line count and the destination for a firm figure.