Built to Meet the Growing Demand for Bundle Six Transmission Projects
As utilities continue expanding capacity and upgrading transmission corridors, bundle six conductor configurations are becoming more common on high‑voltage lines. The heavy-duty block, model # MDL71S-34-3H-UL, was developed to support this shift with a block designed specifically for the loads, handling requirements, and installation methods crews encounter on these larger projects. This newly designed model will be available for both helicopter installation and full‑frame use, giving crews flexibility depending on job conditions.
Key Features
- Purpose‑Built for Bundle Six Configurations
Designed for projects requiring six conductors per phase, giving crews the capacity needed for today’s high‑load transmission work (Click to view design).
- 34″ Sheaves to Reduce Conductor Bending Stress
Large‑diameter sheaves with a 2.1″ bottom groove help maintain proper bend radius, support smoother handling, and reduce stress on the conductor during stringing.
- 30,000 LB. Working Capacity
Sized to handle the forces typically seen in long transmission spans without overloading the equipment.
- Available for Helicopter or Full‑Frame Use
Supports both installation methods so crews can select the setup that fits the job whether it’s helicopter stringing or full‑frame operations.
- Improved Stability on the Ground and in the Air
Anti‑tip feet help keep the block stable during staging and offer better control when lifting or positioning the assembly.
- Grounding Arm Attachment Available
- This Item is Available for Sale Only
Why It Matters
Modern transmission projects are increasing in size and complexity, especially as utilities add capacity for renewable generation and grid hardening. Crews need equipment that can handle heavier loads, larger bundles, and longer spans without unnecessary complications. The bundle six provides those capabilities in a straightforward, field‑ready design.
Your Trusted Partner
For decades, Wagner‑Smith Equipment Co. has supported contractors and utilities nationwide with dependable tools, equipment, and services:
- Equipment Sales & Rentals – Standard or custom solutions for transmission and distribution.
- Tooling Services – Most orders ship the same day.
- Rope Testing & Grounds Construction – Providing safety, reliability, and compliance you can depend on.
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