The Sherman + Reilly XS-100B Universal Stringing Block is a light-weight, yet exceptionally rugged, reliable, and durable distribution stringing block. Combined with its family of associated hardware and accessories, it affords utilities and their contractors exceptional versatility in how and where it may be deployed and in the range of installation problems it can help solve. Its low-friction bearings render high block efficiency, which helps to maximize stringing distances while minimizing pulling tensions and reducing loads on stringing equipment.
The XS-100B’s light weight and durability derive from the materials and methods used to make it. The material used for the frame is “virgin” A356-T6 aluminum, which is an aluminum alloy with very tightly controlled proportions of other materials to assure optimum performance during manufacture and in the field. Virgin material is material that has not been mixed with scrap material, not even with scrap of what may have once been the same alloy. The fact that Sherman + Reilly uses “virgin” material assures that the material is exactly and only the pure and correct alloy, and that it has not been contaminated by impurities (notably iron) that often accompany non-virgin material.
XS-100B frames are cast (molded) as molten metal. The properties and purity of the A356-T6 Aluminum used by Sherman + Reilly assure that the molten metal flows smoothly and evenly throughout the mold, assuring proper and uniform density throughout the finished frame. Proper density and uniformity combined with the purity and metallic properties of the alloy assure that the frame is strong but lightweight, and assure that there are no internal voids or brittleness that could cause sudden complete failure of the block in the field.
Standard (Original) Polished Groove Sheave:
The 7" x 3" aluminum alloy sheave is a permanent mold casting that is heat treated for strength and extended life for multiple applications of conductor stringing and cable placement. The sheave has anti-friction sealed ball bearings lubricated for life under normal conditions. This sheave will provide a constant 98% efficiency during stringing to reduce the amount of force during pulling and tensioning operations.
Fittings are the hardware attachments that fit into the socket connector at the top of the blocks in order to hang the blocks from fixtures – hooks, lines, brackets, etc. Order your blocks with fittings if the blocks will be hung or suspended (either immediately or in the future).
Compatible Fittings (not included):
No. 1 Hook w/ Clasp
No. 8 Clevis
No. 3030 Y-Ball Fitting
No. 6 Oval Eye
No. 1 Ball Hook
High strength, low weight
2,500 lb. maximum working load
Positive locking handle (a secure spring-loaded latch and largeID pull-loop) on the side-gate assembly for easy conductor clip-in and for hot-stick operations