Low Profile Jib Cranes

Knight’s Low Profile Jib Cranes are ergonomically designed to accommodate workstations where ceiling heights are inconvenient for an overhead crane system. This series offers a large tool coverage area with a single rotating rail on a floor-mounted pedestal.

The MJBA2050 is typically used in applications that require tools to be suspended.

The MJBA2300 Light Duty Low Profile Jib Cranes allow for maximum hoist height on low head room applications.

MJBA2050

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Features

  • For low headroom clearance applications.
  • Level Adjustment End Bracket used to adjust horizontal boom on rail.
  • TR2000 Series Rail Only.
  • Timken® Precision thrust bearing.
  • Max. Jib Length: Up to 10 ft. [3m].
  • Max. Under Rail Clearance Height: Up to 12 ft. [3.7m].
  • Max. Capacity: Up to 50 lbs. [23kg].

Benefits

  • Eliminates need for overhead system.
  • Easy (2) Two Piece Installation.
  • Thrust Bearing design Eases Rotational Effort.

MJBA2300 and MJBA2600

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Features

  • For low headroom clearance applications.
  • Level Adjustment End Bracket used to adjust pitch of rail.
  • RAD7510 Series Rail Only.
  • Adjustable Hard Stop.
  • Max. Jib Length: Up to 20 ft. [6.1m].
  • Max. Under Rail Clearance Height: Up to 15 ft. [4.5m].
  • Max. Capacity: Up to 1150 lbs. [522kg].

Benefits

  • Eliminates need for overhead system.
  • Timken® Tapered Roller Bearing.
  • McGill® Cam Yoke Roller Bearing.
  • Optional MRES7522 Telescoping Rail.
  • Round post allows for 360° rotation.

MJBA3000

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Features

  • For low headroom clearance applications or when an overhead system is inconvenient.
  • RAD7510 Series Rail Only.
  • Max. Jib Length: Up to 20 ft. [6.1m].
  • Max. Under Rail Clearance Height: Up to 15 ft. [4.5m].
  • Max. Capacity: Up to 2000 lbs. [908kg].

Benefits

  • Eliminates need for overhead system.
  • Optional Rail Mounting Kits JSA9130 and JSA9131 are available.
  • Timken® Tapered Roller Bearing.
  • McGill® Cam Yoke Roller Bearing.
  • Optional MRES7522 Telescoping Rail.

Capacity Charts

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MJBA2300 JIB BOOM CAPACITY CHART
Based on L/350 Deflection Criteria

Jib Boom
Length

Jib Boom Under Rail Clearance
8ft.
[2.44m]
9ft.
[2.74m]
10ft.
[3.05m]
11ft.
[3.35m]
12ft.
[3.66m]
13ft.
[3.96m]
14ft.
[4.27m]
15ft.
[4.57m]
ft.
m.
lbs
kg
lbs
kg
lbs
kg
lbs
kg
lbs
kg
lbs
kg
lbs
kg
lbs
kg
6
1.83
1150
522
1070
485
940
426
840
381
760
345
700
318
640
290
590
268
7
2.13
970
440
860
390
770
349
690
313
620
281
570
259
520
236
490
222
8
2.44
820
372
720
327
640
290
570
259
520
236
480
218
440
200
410
186
9
2.74
700
318
610
277
550
250
490
222
450
204
410
186
380
172
350
159
10
3.05
600
272
530
240
470
213
430
195
390
177
360
163
330
150
310
141
11
3.35
530
240
470
213
420
191
380
172
340
154
320
145
290
132
270
123
12
3.66
470
213
410
186
370
168
330
150
310
141
280
127
260
118
240
109
13
3.96
420
191
370
168
330
150
300
136
270
123
250
113
230
104
220
100
14
4.27
370
168
330
150
300
136
270
123
250
113
230
104
210
95
200
91
15
4.57
340
154
300
136
270
123
250
113
230
104
210
95
190
86
180
82
NOTE: Capacities over 1,000 lbs [454 kg] require a Dual Load Trolley in applications that use chain or cable.
Custom Lengths Available Upon Request.

 

MJBA2600 JIB BOOM CAPACITY CHART
Based on L/350 Defection Criteria

Jib Boom
Length

Jib Boom Under Rail Clearance
8ft.
[2.44m]
9ft.
[2.74m]
10ft.
[3.05m]
11ft.
[3.35m]
12ft.
[3.66m]
13ft.
[3.96m]
14ft.
[4.27m]
15ft.
[4.57m]
ft.
m.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
lbs.
kg.
6
1.83
1150
522
1150
522
1150
522
1140
517
1000
454
890
404
800
363
730
331
7
2.13
970
440
970
440
970
440
920
417
810
367
720
327
650
295
590
268
8
2.44
840
381
840
381
840
381
770
349
680
308
600
272
550
250
500
227
9
2.74
730
331
730
331
730
331
650
295
580
263
520
236
470
213
430
195
10
3.05
640
290
640
290
640
290
560
254
500
227
450
204
410
186
370
168
11
3.35
570
259
570
259
560
254
490
222
440
200
390
177
360
163
330
150
12
3.66
510
231
510
231
500
227
440
200
390
177
350
159
320
145
290
132
13
3.96
460
209
460
209
440
200
390
177
350
159
310
141
290
132
260

118

14
4.27
410
186
410
186
400
181
350
159
310
141
280
127
260
118
240
109
15
4.57
370
168
370
168
360
163
320
145
280
127
260
118
240
109
220
100
NOTE: Capacities over 1,000 lbs [454 kg] require a Dual Load Trolley.
Custom Lengths Available Upon Request.

Accessories

General

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