Repuestos para molinos de martillos

Bi-metallic (Cr26 tip fusion-bonded to Mn18Cr2 body): extended service life compared to Cr26 mono-block in abrasive clinker and slag applications. The carbide-rich tip resists wear while the Mn body absorbs impact. Cr26 mono-block: suitable for soft limestone where impact energy is high but abrasion is low. TIC-tipped: maximum abrasion resistance for alumina, clinker with high silica, and iron ore.

Rotor balance. A 1% mass difference between opposite hammers at normal operating speed creates vibration, premature bearing failure, and fatigue cracking in the rotor shaft. Every hammer is individually weighed and laser-marked with its weight and part number for balanced installation.

Spacing determines product top size. 25–40 mm for fine grinding (cement finish), 40–60 mm for medium (raw meal), 60–75 mm for coarse (clinker breaking). Replace grate bars when the gap widens 3–5 mm beyond original spec — wider gaps allow oversize particles to escape, increasing downstream mill energy consumption.

Visual check every 1,000 operating hours at minimum. More frequent in abrasive applications (every 400–600 hours). Always inspect alongside hammer rotation or replacement.