Gyratory Crusher

Highest Throughput Capacity of Any Primary Crusher

The annular crushing chamber — open simultaneously around its full 360° circumference — crushes and discharges material continuously without the open-and-close cycle limitation of jaw crushers, delivering processing capacities from 1,000 TPH to over 5,000 TPH from a single machine. This throughput capability eliminates the need for multiple parallel primary crusher installations at large mining operations, reducing civil infrastructure cost, equipment count, maintenance complexity, and plant footprint compared to multi-jaw crusher primary crushing stations of equivalent total capacity.

Continuous Feed Acceptance, No Pre-Sorting Required

The large feed opening — up to 1,500 mm — accepts run-of-mine boulders directly from mine haul truck dumps or blasted stockpiles without requiring a primary grizzly or pre-crusher to remove oversize, unlike smaller primary crushers that require controlled, pre-sorted feed. The wide feed opening also accommodates occasional oversize boulders without bridging, eliminating the production interruptions and manual breaking required to clear feed bridges in smaller primary crusher installations.

Hydraulic CSS Adjustment for Consistent Product Size

The hydraulic main shaft lifting system adjusts the CSS upward or downward with millimeter precision from the remote control room without stopping the crusher, compensating for mantle wear continuously throughout the full liner service life. This real-time CSS control maintains consistent output product gradation — critical for maintaining stable feed conditions to the downstream secondary crushing circuit — and eliminates the progressive product size coarsening that occurs in mechanically adjusted primary crushers as the mantle wears between scheduled adjustment intervals.

Automatic Hydraulic Overload Protection

The hydraulic main shaft support system provides instantaneous overload protection when uncrushable tramp iron or an extremely hard boulder exceeds the maximum set crushing force. The main shaft drops automatically, widening the CSS to pass the obstruction through the chamber without damaging the mantle, concave, or bevel gear, then returns automatically to the preset CSS position within seconds — eliminating the production stoppages and manual intervention required to clear tramp iron from conventional mechanically protected primary crushers.

Low Operating Cost Per Tonne at High Throughput

The combination of extremely high throughput, long mantle and concave liner service life (typically 800,000–2,000,000 tonnes per liner set depending on ore abrasiveness), and a single large machine replacing multiple smaller units results in the lowest primary crushing cost per tonne of any crusher type at high production rates. The continuous discharge flow also eliminates the surge bin sizing requirements associated with pulsating jaw crusher discharge, reducing downstream surge handling infrastructure cost.

Robust All-Weather Design for Permanent Installation

The massive cast steel main frame, spider, and top shell are designed for permanent outdoor installation without building enclosure in open-pit mining environments, withstanding extreme temperature ranges, heavy rainfall, dust, and seismic loading over service lives of 25–40 years between major structural overhauls. The modular mantle and concave liner system allows individual liner segments to be replaced by standard maintenance crews with mobile cranes without dismantling the main frame or shaft, minimizing scheduled downtime for liner change-out at regular production intervals.