ERAIL ELECTRIFIED RAIL SYSTEMS*

Electrified Rail Systems are a complete power supply suspension system that can be used in combination with a Knight Servo System, VFD tractors, power tools, and other electrical devices.

The ERAD Series is a fully enclosed electrical system that eliminates the stack-up of runway festooning. The power travels through a conductor power rail (ERail), mounted on top of Knight’s ERAD4000, ERAD6000, or ERAD7000 ergonomically friendly aluminum rail. The standard ERail is equipped with (4) four poles, nominal current 60 amp, 240/480V which can run multiple systems on (1) one rail assembly.

The Electrified Rail is incredibly diverse in that it can also be mounted to the side of the aluminum rail. The benefits to this configuration include shorter stack-up heights and the use of Knight’s standard rail rather than the custom rail used with the top-mounted style. The side-mounted style can also be retrofitted onto an existing Knight system to eliminate the need for electrical festooning.

*Top-mounted style is Patent Pending

General Information

Features

Patent Pending
Fully Enclosed Electrical System
ERail Electrical Capacity:
Up to 60 amps / 690 volts
Horizontal curved sections available.
Max Weight Capacity:
Up to 3,000 lbs [1,360 kg]
Compliant with International Standards.
Added safety against shock.
Knight’s unique hanger design allows for adjustments while leveling the system.

Benefits

Optional mounting configuration: side mounted.
Eliminates stack-up of festooning trolleys and hanging electrical cables.
Simplifies installation by including electrical rail within suspension.
Eliminates need for tow bars.
Stacked compact design eliminates need from installing load rail and power rail separately.
Twice the power of the competition.

System Components

ERail

Available in 4 poles with a nominal current of 60 A. Optional 5, 6, and 7 poles available upon request.

ERail Conductor Trolley

Travels inside of the ERail and is combined with the Knight load trolley. Copper graphite shoes are used for energy and control voltages over 35 V.

ERAD4000/ERAD6000/ERAD7000

Combined with Knight’s load trolleys, provides the most ergonomically friendly rail system. Rail comes in lengths up to 25ft [9.1m] without a splice. Capacities up to 3,000 lbs. [1,360 kg].

Suspension Points

Knight adjustable hangers and End Trucks support both the Load Rail and ERail. Hangers have the ability to mount to I-Beams, C-Channels, Angle Iron, and many others.

ERail End Caps and Stops

Attaches to the end of the ERail Series Rail. The Redundant End Cap is primarily used to prevent load and ERail trolleys from exiting the rail.

Power Supply End Feed

Power supply feed for ERail. Comes standard with 4 poles, 5-7 poles available upon request.

ERAD4000 Capacity Chart

ERAD4000 Capacities

Hanger Span		Deflection Criteria
Hanger Span		1:350 Capacity*		1:450 Capacity*		1:550 Capacity*
ft	m	lbs	kg	lbs	kg	lbs	kg
5	1.52	1140	517	1140	517	1140	517
6	1.83	945	429	945	429	945	429
7	2.13	810	367	810	367	790	358
8	2.45	705	320	705	320	600	272
9	2.74	625	283	575	261	470	213
10	3.05	560	254	460	209	375	170
11	3.35	490	222	375	170	300	136
12	3.66	405	184	310	141	245	111
13	3.96	340	154	255	116	205	93
14	4.27	285	129	215	98	170	77
15	4.57	240	109	180	82	140	64
16	4.88	205	93	150	68	120	54
17	5.18	175	79	130	59	100	45
18	5.49	150	68	110	50	80	36
19	5.79	130	59	90	41	65	29
20	6.10	110	50	75	34	55	25
21	6.40	90	41	60	27	40	18
22	6.71	80	36	50	23	30	14
23	7.01	65	29	40	18	20	9
24	7.32	50	23	30	14	15	7

*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 1:350 (1” of deflection for each 350” of length), 1:450 (1” of deflection in 450” of length) or 1:550 (1” of deflection for each 550” of length).

For purposes of estimating approximate ergonomic force requirements, the following formula may be used:

0.009 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 lbs. (1.03 kg) mass x 0.009 = 2.25 lbf (0.9 kg) to overcome inertia

2.25 (0.9 kg) x 0.35 = .79 lbf (0.36 kg) to sustain movement

ERAD6000 Capacity Chart

ERAD6000 Capacities

Hanger Span		Deflection Criteria
Hanger Span		1:350 Capacity*		1:450 Capacity*		1:550 Capacity*
ft	m	lbs	kg	lbs	kg	lbs	kg
5	1.52	2030	921	2030	921	2030	921
6	1.83	1690	767	1690	767	1690	767
7	2.13	1445	655	1445	655	1445	655
8	2.45	1260	572	1260	572	1260	572
9	2.74	1115	506	1115	506	1115	506
10	3.05	1000	454	1000	454	895	406
11	3.35	905	411	900	408	730	331
12	3.66	825	374	750	340	605	274
13	3.96	760	345	630	286	510	231
14	4.27	700	318	535	243	430	195
15	4.57	600	272	455	206	365	166
16	4.88	520	236	395	134	310	141
17	5.18	450	204	340	154	270	122
18	5.49	395	179	295	134	230	104
19	5.79	345	156	255	116	195	88
20	6.10	300	136	220	100	170	77
21	6.40	265	120	190	86	145	66
22	6.71	230	104	165	75	125	57
23	7.01	205	93	140	64	105	48
24	7.32	180	82	120	54	85	39

For purposes of estimating approximate ergonomic force requirements, the following formula may be used:

0.009 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 lbs. (1.03 kg) mass x 0.009 = 2.25 lbf (0.9 kg) to overcome inertia

2.25 (0.9 kg) x 0.35 = .79 lbf (0.36 kg) to sustain movement

ERAD7000 Capacity Chart

ERAD7000 Capacities

Hanger Span		Deflection Criteria
Hanger Span		1:350 Capacity*		1:450 Capacity*		1:550 Capacity*
ft	m	lbs	kg	lbs	kg	lbs	kg
5	1.52	3000	1360	3000	1360	3000	1360
6	1.83	3000	1360	3000	1360	3000	1360
7	2.13	3000	1360	3000	1360	3000	1360
8	2.45	2940	1334	2940	1334	2940	1334
9	2.74	2610	1184	2610	1184	2610	1184
10	3.05	2345	1064	2345	1064	2345	1064
11	3.35	2130	966	2130	966	2130	966
12	3.66	1945	882	1945	882	1945	882
13	3.96	1795	814	1795	814	1720	780
14	4.27	1660	753	1660	753	1475	669
15	4.57	1545	701	1545	701	1275	578
16	4.88	1445	655	1370	621	1110	503
17	5.18	1355	615	1205	547	975	442
18	5.49	1280	581	1065	483	860	390
19	5.79	1205	547	950	431	765	347
20	6.10	1105	501	845	383	680	308
21	6.40	995	451	760	345	610	277
22	6.71	895	406	685	311	545	247
23	7.01	810	367	615	279	490	222
24	7.32	735	333	555	252	440	200

For purposes of estimating approximate ergonomic force requirements, the following formula may be used:

0.009 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 lbs. (1.03 kg) mass x 0.009 = 2.25 lbf (0.9 kg) to overcome inertia

2.25 (0.9 kg) x 0.35 = .79 lbf (0.36 kg) to sustain movement

Videos

*ERail Electrified Rail Systems