The Enduring Legacy of Loro & Parisini Cone Crushers: Engineering Excellence Forged in Tradition

Within the demanding world of aggregate production and mineral processing, certain names resonate with a legacy of robust engineering and proven performance. Loro & Parisini stands as one such pillar within Italy's rich industrial heritage and the broader global crushing landscape. While formally integrated into Italia SpA following its acquisition by (later part of ) decades ago, cone crushers bearing the Loro & Parisini nameplate represent a significant chapter in crushing technology history – machines renowned for their durability, simplicity of design, and effectiveness across diverse applications.

Rooted in Italian Industrial Prowess

The story begins far earlier than modern cone crusher dominance. Founded in Milan in 1922 by engineer Felice Loro and entrepreneur Cesare Parisini, Officine Meccaniche Loro & Parisini initially focused on pumps and compressors for Italy's burgeoning industrial sector. Their reputation for precision engineering grew rapidly during the interwar period and post-WWII reconstruction boom. Recognizing the critical need for efficient size reduction equipment supporting infrastructure development – roads, buildings – Loro & Parisini strategically expanded into crushing machinery during the 1950s.

This era coincided with significant advancements globally in compression crushing theory and practice concerning cone crushers – moving beyond simple gyratory concepts towards more efficient secondary and tertiary reduction machines capable of producing consistent cubical aggregates essential for high-quality concrete and asphalt production.

Engineering Hallmarks: Simplicity Meets Robustness

Loro & Parisini cone crushers earned their reputation through fundamental design principles emphasizing reliability under tough conditions:

1. البناء القوي: Utilizing high-grade castings (often Ni-hard liners later became standard) forgings for critical components like shafts, main frames (bowls), adjustment rings were built exceptionally heavy-duty compared to some contemporaries.
2. Proven Mechanical Design: Early models relied on time-tested mechanical principles:
Eccentric Mechanism: A sturdy main shaft driven via V-belts or direct drive from an electric motor transmitted motion through large-diameter roller bearings supporting an eccentric assembly.
غرفة سحق: Characterized by relatively steep nip angles initially common at the time.

Spring-Based Tramp Release: Heavy coil springs surrounding the main frame provided overload protection against uncrushable material entering the chamber ("حديد متشرد"). This system prioritized mechanical integrity over instant reset capability but offered excellent shock absorption.