HPT hydraulic cone crusher

HPT adopts hydraulic‑driven gear‑rotating adjustment assembly instead of shims. Hydraulic force rotates adjustment sleeve to change gap between mantle and concave so as to modify output size. Real‑time gap value can be read on control system and parameters are set under shutdown condition. Some configurations support remote gap monitoring. Compared with shim adjustment, it improves efficiency and reduces part disassembly work. After adjustment, verify actual discharge size under no‑load and loaded conditions to meet product requirements.

Choke‑feeding means keeping the upper crushing cavity continuously filled with material, which is essential for inter‑particle crushing. It does not mean jamming the chamber but maintaining proper material height inside observation window with steady sufficient feed. Upstream conveying equipment must match capacity to avoid feed shortage. Feed particle size should stay within permitted range. Choke‑fed condition delivers best particle shape and throughput. Irregular feeding leads to poor product quality and unstable machine load.

HPT multi‑cylinder hydraulic cone crusher is designed for secondary and tertiary crushing, receiving feed from jaw crushers to produce high‑quality manufactured sand and aggregates. It suits medium‑hard and hard ores and is not intended for large lump raw ore feeding. Adopting inter‑particle crushing principle, it produces well‑rounded aggregates with low flaky content. It is widely deployed in aggregate lines, metal‑ore beneficiation and hard‑stone deep‑processing projects demanding good particle shape.

When iron or foreign objects enter crushing chamber, crushing load rises sharply. HPT multi‑cylinders quickly release pressure, moving the mantle downward to widen discharge gap and let foreign matter pass through. After discharge, hydraulic system automatically resets gap to original setting for continuous production. The whole process runs automatically without manual operation, preventing severe damage to mantle, liners and frame. Nevertheless, magnetic iron removal equipment is still recommended upstream to reduce tramp‑release triggering frequency.

Inter‑particle crushing realizes comminution through particle‑to‑particle compression instead of liner impact alone. It greatly reduces flaky particle ratio to meet aggregate standards for high‑grade concrete. Liners wear more evenly, extending wear‑part service life and cutting downtime for replacements. Stable product gradation can be maintained. Choke‑fed operation maximizes throughput and lowers comprehensive operating cost per ton of finished product.

HPT cone crusher is not suitable for highly‑viscous, wet feed with massive clay. Excessive clay and moisture tend to form sticky deposits inside crushing chamber, block discharge passage and lead to chamber stall and hydraulic alarms. Pre‑screening is recommended to remove fine clay fractions before feeding into cone crusher. If slightly wet material has to be processed, reduce choke‑feed material level and lower throughput, closely monitoring motor current and hydraulic pressure.