Design, Manufacture and Installation of Theatrical Equipment Worldwide

Loft Blocks, Underhung - 19 Series

Underhung Loft Block
Underhung Loft Block
200-10819C25R

  • Underhung style, supported by a single structural beam
  • Nylon or ASTM Class 30 grey iron sheaves
  • Sealed precision ball bearings (Single line 8" nominal sheave only) or tapered roller bearings
  • 10 gauge side plates.
  • 3/4" drawbolt and steel clip allow a 4" grip adjustment to accommodate a range of beam sizes.
  • A minimum of three spacers between the side plates; to prevent cables from escaping the sheave grooves.

Ordering Information
Sheave
Diam.
Lines Bearings Cast Iron
Prod. Code
RWL Wt. Nylon
Prod. Code
RWL Wt.
Cable Blocks
8-1/2" 1 17mm BB 200-10819C25R 500 lb 14 lb 200-10819N25R 500 lb 9 lb
8-1/2" 2 17mm BB 200-20819C25R 500 lb 14 lb 200-20819N25R 500 lb 10 lb
8-1/2" 1 17mm BB 200-10819C25RT 500 lb 14 lb 200-10819N25RT 500 lb 9 lb
8-1/2" 2 17mm BB 200-20819C25RT 500 lb 14 lb 200-20819N25RT 500 lb 10 lb
8-1/2" 4 1" TRB 200-40819C25R 700 lb 34 lb 200-40819N25R 700 lb 25 lb
12"* 8 1" TRB 200-80819C25R 700 lb 44 lb 200-80819N25R 700 lb 28 lb
12" Note A 1 1" TRB 200-11219C25R 675 lb 47 lb - - -
Cable Blocks (3/16" cable) - - - - - -
8-1/2" 1 17mm BB - - - 200-10819N19R 500 lb 9 lb
8-1/2" 1 17mm TRB - - - 200-10819N19RT 500 lb 9 lb
8-1/2" 8 1" TRB - - - 200-80819N19R 700 lb 28 lb
Rope Blocks
8" 1 17mm BB 200-10819C75R 300 lb 14 lb 200-10819N75R 300 lb 9 lb
8" 1 17mm TRB 200-10819C75RT 300 lb 14 lb 200-10819N75RT 300 lb 9 lb

*AVAILABLE FOR 1/4" OR 3/8" CABLE, SPECIFY."
 
19 Series blocks grip the bottom flanges of beams. Blocks have a 3/8" throat with a grip range of 4" - 9". Change the suffix from "R" to "U" for a 3/4" throat with a 4-1/8" - 10" grip range.
 
To add Idlers to 8" Underhung Blocks -- Change last letter to "I3" or "I6" to indicate 3 or 6 idler grooves.
 
RWL: RWL is maximum load that can be applied to a block which is in "like new" condition and has been properly installed, maintained and operated.
 
7041 Interstate Island Road | Syracuse, NY USA 13209-9713 | Phone: 315-451-3440 | Toll Free: 800-836-1885
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