Knight Curved Aluminum Rail RAD4112/6112/7512

Overview

A lightweight, high-strength aluminum enclosed track with a curved radius that lets loads travel around corners and stationary objects.

Knight’s RAD4112, RAD6112 and RAD7512 Curved Aluminum Rail Series has a curved radius enclosed track that is 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

Features

Mechanical Properties: ASTM B221 6005-T5 Series Aluminum.
Standard Radiuses:
- RAD4112
  - 3 ft. [0.92m] Min. Radius.
  - 8 ft. [2.43m] Max. Radius.
- RAD6112
  - 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

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

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

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

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.