Inter-particle crushing, spring-based tramp-iron protection and multiple cavity profiles — the workhorse for secondary and tertiary crushing of hard rock.
PY / PYF Series Spring Cone Crusher · 9 models
Click a model for specifications, applications, selection guidance and FAQs.
The chamber is formed by a fixed concave and a mantle mounted on an eccentric sleeve. The motor drives the countershaft and the bevel gear pair, rotating the eccentric so the mantle gyrates. On the side where the mantle approaches the concave, material is squeezed and bent until it breaks; on the opposite side the chamber opens and material discharges. The cycle repeats continuously.
The parallel zone at the bottom of the chamber governs product size. Material is compressed several times there, which evens out the product and produces a near-cubic shape. The spring system provides a relief stroke when uncrushable material enters — the core protection mechanism of the machine.
The spring cone is a mature, low-maintenance design with inexpensive parts — good for small-to-medium plants and tight budgets. The single-cylinder hydraulic cone does all adjustment and protection hydraulically: more automated, quicker setting changes, better for large aggregate lines and duty that needs frequent adjustment. Both are reliable in hard-rock secondary and tertiary duty; the difference is automation level and investment.
Yes. Changing the mantle and concave switches the cavity on the same frame. Standard and short-head types differ mainly in parallel-zone length and chamber profile; before converting, have the manufacturer confirm the eccentric and main shaft are compatible.
Because it crushes by inter-particle compression. Force is transmitted through the material bed rather than directly onto the wear parts, so liners wear more evenly, energy per tonne is lower and the product is closer to cubic. A jaw crusher works mainly by single-particle compression and is better suited to the primary stage.
Send us the material type, feed size, target capacity and product requirement, and we will recommend models, propose a plant configuration and quote factory-direct.