J.R. Clancy, Incorporated - Universal Loft Block 55 / 56 / 59 Series

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  • May be mounted upright or underhung.
  • May be supported by I-beams, grid wells, or Unistrut™.
  • Nylon or ASTM Class 30 grey iron sheaves are available.


Category: rigging systems | stage equipment | stages...

MasterFormat: Entertainment and Recreation Equipment | Broadcast, Theater, and Stage Equipment | Rigging Systems and Controls



J.R. Clancy, Incorporated
7041 Interstate Island Road
Syracuse, NY 13209
Tel: (800) 836-1885
Fax: (315) 451-1766

marilynlarsen@jrclancy.com

http://www.jrclancy.com

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Overview


Universal Loft Block 55 / 56 / 59 Series

  • May be mounted upright or underhung.
  • May be supported by I-beams, grid wells, or Unistrut™.
  • Nylon or ASTM Class 30 grey iron sheaves are available. Nylon sheaves are quieter, have a higher capacity, lower weight, and lower cost than blocks with cast iron sheaves.
  • 8" blocks have a 24" base angle with a continuous pattern of holes and slots for universal mounting for a grip range up to 20". Multi-line block base angles have a series of mounting holes.
  • 8-Line blocks have the base angles turned in, requiring different upright and underhung models.
  • A clip package is available for single line blocks with a combination of J-bolts and clips for both underhung, and upright mounting options.
  • Sealed precision ball bearings (Single line, 8" nominal sheave only) or tapered roller bearings
  • Side plates fully enclose sheave.
  • Five spacer between the side plates, three of which prevent cables from escaping the sheave grooves
  • Pivot adapters (070-PIVOT) are available for single line 8" blocks used in applications where the mounting surface is sloped.
  • Underhung loft blocks may need to be welded to loft beams after final alignment - consult the factory for specific information.


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Specifications

Ordering Information
SheaveDiam. Lines Bearings Cast IronProd. Code RWL Wt. NylonProd. Code RWL Wt.
Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable) Cable Blocks (1/4" (6.35 mm) cable)
8-1/2"
216 mm
1 17mm BB 200-10855C25 500 lb
227 kg
20 lb
9 kg
200-10856N25 750 lb
340 kg
15 lb
6.8 kg
8-1/2"
216 mm
2 17mm BB 200-20855C25 700 lb
317 kg
20 lb
9 kg
200-20855N25 750 lb
340 kg
16 lb
7.25 kg
8-1/2"
216 mm
1 17mm TRB 200-10856C25T 500 lb
227 kg
20 lb
9 kg
200-10856N25T 750 lb
340 kg
15 lb
6.8 kg
8-1/2"
216 mm
2 17mm TRB 200-20855C25T 700 lb
317 kg
20 lb
9 kg
200-20855N25T 750 lb
340 kg
16 lb
7.25 kg
8-1/2"
216 mm
4 1" TRB
25.4 mm
200-40855C25 1300 lb
590 kg
40 lb
18 kg
200-40855N25 1300 lb
590 kg
31 lb
14 kg
8-1/2" Upright
216 mm
8 1" TRB
25.4 mm
200-80855C25 1300 lb
590 kg
52 lb
23.5 kg
200-80855N25 1300 lb
590 kg
32 lb
14.5 kg
8-1/2" Underhung
216 mm
8 1" TRB
25.4 mm
200-80859C25 1300 lb
590 kg
52 lb
23.5 kg
200-80859N25 1300 lb
590 kg
32 lb
14.5 kg
8-1/2" Upright
216 mm
10 1" TRB
25.4 mm
200-100855C25 1300 lb
590 kg
55 lb
25 kg
- 1300 lb
590 kg
33 lb
15 kg
8-1/2"Underhung
216 mm
10 1" TRB
25.4 mm
200-100859C25 1300 lb
590 kg
55 lb
25 kg
- 1300 lb
590 kg
33 lb
15 kg
12"*
305 mm
1 1" TRB
25.4 mm
200-11255C25 700 lb
317 kg
50 lb
22.7 kg
- - -
12"
305 mm
2 1" TRB
25.4 mm
200-21255 1400 lb
634 kg
50 lb
22.7 kg
- - -
12" Upright
305 mm
8 1" TRB
25.4 mm
200-81255C25 3000 lb
1361 kg
74 lb
33.5 kg
- - -
12" Underhung
305 mm
8 1" TRB
25.4 mm
200-81259C25 2500 lb
1134 kg
74 lb
33.5 kg
- - -
16"+
406 mm
1 1" TRB
25.4 mm
200-11655S38 1400 lb
634 kg
110 lb
50 kg
- - -
Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable) Cable Blocks (3/16" (4.76 mm) cable)
8-1/2"
216 mm
1 17mm BB - - - 200-10855N19 500 lb
317 kg
15 lb
6.8 kg
8-1/2"
216 mm
1 17mm TRB - - - 200-10855N19T 500 lb
317 kg
15 lb
6.8 kg
8-1/2"
216 mm
8 1" TRB
25.4 mm
- - - 200-80855N19 1300 lb
590 kg
28 lb
12.7 kg
8-1/2"
216 mm
8 1" TRB
25.4 mm
- - - 200-80859N19 1300 lb
590 kg
28 lb
12.7 kg
Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope) Rope Block (3/4" (19 mm) rope)
8"
203 mm
1 17mm BB 200-10855C75 300 lb
136 kg
20 lb
9 kg
200-10855N75 300 lb
136 kg
15 lb
6.8 kg
8"
203 mm
1 17mm TRB 200-10855C75T 300 lb
136 kg
20 lb
9 kg
200-10855N75T 300 lb
136 kg
15 lb
6.8 kg
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