Has anyone seen long-term reliability differences versus die-type when terminating 4/0–500 kcmil Al/Cu? On a school retrofit last week, a 12‑ton dieless head gave me about 1–2 mΩ lower joint resistance than a 6‑ton die set, but I’m weighing repeatability, heat rise under load, and maintenance intervals — worth standardizing on the Greenlee/Milwaukee dieless options for better efficiency?
If you’re already seeing 1–2 mΩ better with the 12‑ton dieless, standardize — but police technique. > heat rise under load, and maintenance intervals — worth standardizing on the Greenlee/Milwaukee dieless Yes — double‑cycle and rotate 90° on 500 kcmil and put the head on a 12‑month calibration; that cut our 300 A, 15‑min rise by about 6°C vs a 6‑ton die set. You brushing and using inhibitor on the Al lugs?