Curved Aluminum Rail Series

Knight’s RAD4112, RAD6112 and RAD7512 Curved Aluminum Rail Series has a curved radius enclosed track that is extruded from a lightweight, high-strength aluminum alloy. This rail design allows loads to travel around corners and stationary objects. The Curved Aluminum Rail Series is the ideal solution for direct loads on single curved sections. This series, combined with nylon trolley wheels, provides the lowest rolling resistance in the industry.

Contact a Knight Global representative for more information on Curved Rail accessories.

General Information

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Features

  • Mechanical Properties: ASTM B221 6005-T5 Series Aluminum.
  • Standard Radiuses:
    • RAD4112
      • 3 ft. [0.92m] Min. Radius.
      • 8 ft. [2.43m] Max. Radius.
    • RAD6110
      • 4 ft. [1.21m] Min. Radius.
      • 8 ft. [2.43m] Max. Radius.
    • RAD7512
      • 5 ft. [1.52m] Min. Radius.
      • 8 ft. [2.44m] Max. Radius.

Benefits

  • Custom Radiuses Available.
  • Load Trolleys and End Trucks are designed for cantilevered and direct load applications.
  • All Hangers and End Trucks are designed to prevent binding of bridges and runways.
  • Multiple Pre-Assembled Accessories.
  • Accessories can be positioned along the rail, no welding required.

Specifications

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Curved Aluminum Rail Series

Series Max. Capacity Product Weight
RAD4112 1,100 lbs. [499kg] 1.9 lbs/ ft. [.86kg/m]
RAD6112 1,600 lbs. [725kg] 2.5 lbs/ ft. [1.13kg/m]
RAD7512 3,000 lbs. [1,360kg] 4.0 lbs/ ft. [1.81kg/m]

RAD4112

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Rail Capacities

Hanger Span Deflection Criteria
1:350 Capacity* 1:450 Capacity* 1:550 Capacity*
ft m lbs kg lbs kg lbs kg
5 1.52 1100 499 950 431 700 317
6 1.83 1100 499 950 431 700 317
7 2.13 1050 476 875 397 500 227
8 2.45 1050 476 775 351 500 227
9 2.74 950 431 675 306 425 193
10 3.05 850 385 650 295 425 193
11 3.35 700 317 550 250 350 159
12 3.66 550 250 450 204 300 136
13 3.96 500 226 385 175 250 113
14 4.27 435 197 300 136 250 113
15 4.57 350 159 250 113 200 90
16 4.88 335 152 250 113 200 90
17 5.18 280 127 175 79 150 68
18 5.48 265 120 175 79 150 68
19 5.79 230 104 150 68 125 56
20 6.10 210 95 150 68 125 56
21 6.40 195 88 125 57 125 57
22 6.70 175 79 125 57 100 45
23 7.01 160 73 125 57 100 45
24 7.31 145 66 100 57 75 34
*Due to Ergonomic considerations, each rail span distance is tested to determine the maximum single point load required to achieve a predetermined deflection based on a ratio of L/350 (1” of deflection for each 350” of length), L/450 (1” of deflection in 450” of length) or L/550 (1″ of deflection for each 550″ of length).
For purposes of estimating approximate ergonomic force requirements, the following formula may be used:
0.017 x total mass = maximum effort (in lbf) required to overcome inertia. Effort required to sustain movement is generally 0.35 x effort to overcome inertia e.g.,
250 lb. (113 kg) mass x 0.017 = 4.25 lbf (1.9 kg) to overcome inertia.
4.25 (1.9 kg) x 0.35 = 1.48 lbf (0.67 kg) to sustain movement.
Elastic deformation: This type of deformation is reversible. Once the forces are removed, the object returns to its original shape. The elastic range ends when the material reaches its yield strength. At this point tic deformation begins.
Plastic deformation: This type of deformation is not reversible. Once an object reaches this point, it will not return to its original shape. Plastic deformation ends with the fracture of the material.
Knight Global follows material handling industry standards in determining the capacity ratings for enclosed track overhead workstation crane systems. Each component (e.g. rail, hangers, trolleys,etc.) is individually tested to establish its ultimate failure point. From this number, a safe working load is then assigned to the component. Each rail span length is then tested to determine the maximum single point load required to achieve a predetermined deflection based on a 1:350 ratio (1″ of deflection for each 350″ of length). The recommended rated capacity chart is based upon single point loading for the listed spans.

RAD6112

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Rail Capacities

Hanger Span Deflection Criteria
1:350 Capacity* 1:450 Capacity* 1:550 Capacity*
ft m lbs kg lbs kg lbs kg
5 1.52 1600 725 1300 590 100 499
6 1.83 1600 725 1300 590 100 499
7 2.13 1500 680 1175 533 995 451
8 2.45 1475 699 1075 488 900 449
9 2.74 1400 635 1025 465 870 395
10 3.05 1325 601 925 453 785 356
11 3.35 1100 499 875 397 740 336
12 3.66 950 431 750 340 640 290
13 3.96 825 374 650 295 550 250
14 4.27 750 340 575 261 490 222
15 4.57 675 306 515 233 435 197
16 4.88 600 272 470 213 400 181
17 5.18 525 238 405 184 345 157
18 5.48 450 204 350 159 295 134
19 5.79 425 193 325 147 275 125
20 6.10 400 181 300 136 255 116
21 6.40 360 163 275 125 230 104
22 6.70 320 145 250 113 210 95
23 7.01 285 129 210 95 180 82
24 7.31 245 111 185 84 160 73
*Due to Ergonomic considerations, each rail span distance is tested to determine the maximum single point load required to achieve a predetermined deflection based on a ratio of L/350 (1” of deflection for each 350” of length), L/450 (1” of deflection in 450” of length) or L/550 (1″ of deflection for each 550″ of length).
For purposes of estimating approximate ergonomic force requirements, the following formula may be used:
0.017 x total mass = maximum effort (in lbf) required to overcome inertia. Effort required to sustain movement is generally 0.35 x effort to overcome inertia e.g.,
250 lb. (113 kg) mass x 0.017 = 4.25 lbf (1.9 kg) to overcome inertia.
4.25 (1.9 kg) x 0.35 = 1.48 lbf (0.67 kg) to sustain movement.
Elastic deformation: This type of deformation is reversible. Once the forces are removed, the object returns to its original shape. The elastic range ends when the material reaches its yield strength. At this point tic deformation begins.
Plastic deformation: This type of deformation is not reversible. Once an object reaches this point, it will not return to its original shape. Plastic deformation ends with the fracture of the material.
Knight Global follows material handling industry standards in determining the capacity ratings for enclosed track overhead workstation crane systems. Each component (e.g. rail, hangers, trolleys,etc.) is individually tested to establish its ultimate failure point. From this number, a safe working load is then assigned to the component. Each rail span length is then tested to determine the maximum single point load required to achieve a predetermined deflection based on a 1:350 ratio (1″ of deflection for each 350″ of length). The recommended rated capacity chart is based upon single point loading for the listed spans.

RAD7512

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Rail Capacities

Hanger Span Deflection Criteria
1:350 Capacity* 1:450 Capacity* 1:550 Capacity*
ft m lbs kg lbs kg lbs kg
5 1.52 3000 1360 2700 1225 1700 771
6 1.83 3000 1360 2700 1225 1700 771
7 2.13 3000 1360 2700 1225 1700 771
8 2.45 3000 1360 2700 1225 1700 771
9 2.74 2700 1225 2400 1088 1700 771
10 3.05 2500 1134 2000 907 1700 771
11 3.35 2500 1134 1900 862 1500 680
12 3.66 2500 1134 1800 816 1500 680
13 3.96 2000 907 1800 816 1500 680
14 4.27 2000 907 1500 680 1300 590
15 4.57 1900 861 1500 680 1300 590
16 4.88 1800 816 1200 544 1000 454
17 5.18 1700 771 1200 544 1000 454
18 5.48 1600 726 1000 453 900 408
19 5.79 1450 658 1000 453 900 408
20 6.10 1300 590 900 408 800 363
21 6.40 1100 499 900 408 800 363
22 6.70 900 408 800 363 600 272
23 7.01 900 408 700 317 600 272
24 7.31 885 402 700 317 600 272
25 7.62 850 386 700 317 575 261
26 7.92 725 329 700 317 500 250
27 8.23 725 329 675 306 500 227
28 8.53 600 272 550 250 485 220
29 8.83 600 272 550 250 450 204
*Due to Ergonomic considerations, each rail span distance is tested to determine the maximum single point load required to achieve a predetermined deflection based on a ratio of L/350 (1” of deflection for each 350” of length), L/450 (1” of deflection in 450” of length) or L/550 (1″ of deflection for each 550″ of length).
For purposes of estimating approximate ergonomic force requirements, the following formula may be used:
0.017 x total mass = maximum effort (in lbf) required to overcome inertia. Effort required to sustain movement is generally 0.35 x effort to overcome inertia e.g.,
250 lb. (113 kg) mass x 0.017 = 4.25 lbf (1.9 kg) to overcome inertia.
4.25 (1.9 kg) x 0.35 = 1.48 lbf (0.67 kg) to sustain movement.
Elastic deformation: This type of deformation is reversible. Once the forces are removed, the object returns to its original shape. The elastic range ends when the material reaches its yield strength. At this point tic deformation begins.
Plastic deformation: This type of deformation is not reversible. Once an object reaches this point, it will not return to its original shape. Plastic deformation ends with the fracture of the material.
Knight Global follows material handling industry standards in determining the capacity ratings for enclosed track overhead workstation crane systems. Each component (e.g. rail, hangers, trolleys,etc.) is individually tested to establish its ultimate failure point. From this number, a safe working load is then assigned to the component. Each rail span length is then tested to determine the maximum single point load required to achieve a predetermined deflection based on a 1:350 ratio (1″ of deflection for each 350″ of length). The recommended rated capacity chart is based upon single point loading for the listed spans.