NF Heavy Load Machinery Non Contact Conveyor Belt Backstop
Type NF non contact backstop is a high speed anti-reversal device, with compact structure, large backstop torque, light weight and working stable. Easily to install, disengage without stuck.
The inside uses new designed sprag, not only shock proof, high torque, but also work in zero wear condition while the rotation speed is higher than minimum speed. It's a long life device. This backstop is a protect device of lifting and conveying system. Suit for belt conveyor, bucket elevator, scraper conveyor and other equipment which require anti-reversal function
Mounting Example
Type | Nominal torque [N.m] | Max Rotating Speed [r / min] | Min Rotating Speed [r / min] | Dimension in Contour [mm] | Weight [kg] | |||||||||
d | D | H | H1 | L | L1 | L2 | L3 | C | d1 | |||||
NF10 | 1000 | 450 | 1500 | 40 - 50 | 190 | 273 | 150 | 173 | 25 | 20 | 5 | 145 | 28 | 27 |
NF16 | 1600 | 450 | 1500 | 45 - 60 | 208 | 295 | 160 | 182 | 25 | 22 | 5 | 150 | 32 | 31 |
NF25 | 2500 | 425 | 1500 | 50 - 70 | 230 | 323 | 170 | 190 | 25 | 25 | 5 | 155 | 38 | 38 |
NF40 | 4000 | 425 | 1500 | 60 - 80 | 245 | 350 | 185 | 207 | 28 | 30 | 5 | 166 | 42 | 49 |
NF63 | 6300 | 400 | 1500 | 70 - 90 | 260 | 370 | 195 | 221 | 30 | 35 | 5 | 180 | 45 | 62 |
NF80 | 8000 | 400 | 1500 | 80 - 100 | 275 | 396 | 210 | 226 | 35 | 35 | 5 | 185 | 48 | 73 |
NF100 | 10000 | 375 | 1500 | 90 - 110 | 295 | 425 | 225 | 261 | 35 | 45 | 5 | 220 | 52 | 98 |
NF125 | 12500 | 375 | 1500 | 100 - 130 | 330 | 473 | 250 | 296 | 40 | 50 | 8 | 250 | 58 | 154 |
NF160 | 16000 | 375 | 1000 | 110 - 140 | 360 | 512 | 270 | 306 | 40 | 55 | 8 | 260 | 62 | 175 |
NF200 | 20000 | 350 | 1000 | 120 - 150 | 400 | 565 | 300 | 306 | 50 | 58 | 8 | 260 | 65 | 214 |
NF250 | 25000 | 350 | 1000 | 130 - 160 | 430 | 620 | 335 | 316 | 50 | 63 | 8 | 270 | 70 | 256 |