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| MODEL | FEED OPENING (MM) | POWER (KW) | CAPACITY (T/H) | DISCHARGE RANGE (MM) | WEIGHT (KG) |
|---|---|---|---|---|---|
| ZK42-65 | 1,065 | 400 | 1,385-2,300 | 140-175 | 150,000 |
| ZK50-65 | 1,270 | 450 | 1,480-2,810 | 140-175 | 175,000 |
| ZK54-75 | 1,370 | 630 | 2,355-3,500 | 150-200 | 285,000 |
| ZK63-89 | 1,600 | 800 | 2,400-5,580 | 150-230 | 350,000 |
| ZK70-110 | 1,800 | 1,250 | 4,100-11,000 | 165-250 | 570,000 |
Notes: Capacity figures are based on feed with a loose bulk density of 1.6 t/m³ entering the crushing chamber freely. Values represent instantaneous maximum throughput at the stated discharge settings and vary with material properties, feeding method, moisture and clay content. Contact our engineers for setting-by-setting capacity tables for your ore.
Stock-listed crushing and screening equipment manufacturer, serving 2,000+ operations since 2003.
A gyratory crusher is a primary crushing machine for large-scale operations. It takes run-of-mine rock and ore directly from the pit and reduces it continuously to a size that conveyors and secondary crushers can handle. Typical installations are large metal mines, high-tonnage quarries and cement raw material plants where feed arrives around the clock.
The crushing cone is mounted on a vertical main shaft and gyrates inside a fixed concave shell. Rock entering the chamber is squeezed, split and bent between the mantle and the concave until it breaks small enough to fall through the discharge opening. The main shaft rests on a hydraulic piston, so changing the oil volume below the piston raises or lowers the cone and sets the discharge size.
Tonnage is the dividing line. Up to roughly a thousand tonnes per hour, a jaw crusher is usually the more economical primary machine. Above that, and wherever feed arrives continuously from a large pit, a gyratory crusher wins: it accepts larger lumps, runs without stopping between strokes, and delivers a lower operating cost per ton at scale.
The ZK series spans five models, from just under fourteen hundred tonnes per hour at the entry model to eleven thousand tonnes per hour at the flagship. Actual output depends on ore characteristics, feed gradation and the discharge setting, so confirm the selection against the capacity tables for your material.
On the ZK series the main shaft sits on a hydraulic support piston. Adding or releasing oil below the piston raises or lowers the crushing cone, which opens or closes the discharge gap. Adjustment happens from the control room while the crusher runs, and the system automatically detects the setting to keep product size stable.
The hydraulic system acts as the fuse. When an uncrushable object enters the chamber, pressure under the piston rises and oil is forced into an accumulator, so the main shaft drops quickly, opens the gap and lets the object pass. Once the chamber clears, the shaft rises slowly back to its set position and crushing resumes.
Mantle and concave life depends on ore abrasiveness, feed gradation and chamber selection. In practice, liner sets in hard ore service run for months of continuous operation. The ZK chamber profile distributes wear evenly across the crushing surface, and liner materials are selected to match the ore, which stretches the interval between change-outs.
Support covers installation guidance, commissioning, operator training, technical response and spare parts supply for the life of the machine. Wear parts are factory-original from the manufacturer that built the crusher, and critical items such as mantles, concaves and bearings can be planned into the order so stock is in place before you need it.
Buying a primary gyratory crusher is a decision measured in decades. The machine anchors the whole flowsheet, and a wrong choice in sizing or chamber selection shows up every shift in lost tonnage. The notes below reflect how large-mine teams evaluate and run these machines in practice.
A gyratory crusher sits at the head of the line and works continuously: trucks or vibrating feeder systems discharge directly into the spider opening, and crushed ore flows out without the stop-start cycle of reciprocating machines. Because both the feed and discharge sides are always open, the machine holds its throughput even under surging pit supply. Reduction ratio runs at six to one and above, and the product carries far fewer flaky particles than a jaw crusher product, which the downstream stages appreciate. Its product feeds secondary cone crusher units, screens and, in ore processing, the grinding circuit built around a ball mill. One correctly sized gyratory routinely replaces two or more smaller primary machines, which simplifies the plant layout, the foundations and the maintenance plan.
The choice between a gyratory crusher and a jaw crusher follows tonnage and duty pattern. The table below summarizes where each machine fits.
| POINT | JAW CRUSHER | GYRATORY CRUSHER |
|---|---|---|
| Tonnage window | Up to roughly 1,000 t/h | Above roughly 1,000 t/h, up to 11,000 t/h and beyond |
| Feed pattern | Intermittent, tolerates gaps between loads | Continuous direct dumping from trucks or feeders |
| Feed size | Large, limited by feed opening width | Largest of all primary machines |
| Foundation and height | Low profile, simple civil works | Tall machine, deeper excavation and heavier civil works |
| Operating cost per ton | Lower at small and medium scale | Lower at large scale and continuous duty |
| Maintenance access | Ground-level, simple tooling | Planned shutdowns, liner handling equipment |
The practical reading: if your pit plan calls for steady high tonnage over many years, the gyratory wins on cost per ton despite higher installation cost. If tonnage is moderate, the site is constrained, or the operation relocates periodically, the jaw crusher — or a mobile crushing station — is the more flexible answer. For underground mines with tight headroom, low-profile jaw gyratory crusher designs exist, and semi-mobile stations can be engineered around gyratory units when the pit plan calls for periodic relocation.
At gyratory tonnages, an hour of downtime costs more than most components. Three systems carry the availability of the machine. The hydraulic support and adjustment system sets the discharge opening under load and doubles as tramp protection. The dust sealing system — a positive-pressure blower on the ZK series — keeps abrasive dust out of the eccentric and bearing assemblies, which is where neglected gyratory crushers usually fail first. Watch the spider bushing at the top of the shaft for wear and temperature drift, keep the feed distributed around the full chamber — segregated feed wears liners unevenly on one side — and measure liner wear at every planned shutdown so change-outs land on the wear curve. And the condition monitoring layer watches oil level, temperature, pressure and flow, transmission bearing temperature, cone position and silo level, so developing faults are caught on the trend curve before they stop the crusher.
Liner cost is the largest wear expense on a gyratory crusher, and it has to be actively managed. Chamber selection comes first: the profile must match the ore hardness and feed gradation, because a mismatched chamber wears fast at one zone and wastes the rest of the set. The ZK chamber uses a large inclination angle and a long crushing surface, which spreads wear evenly and keeps capacity stable as the liners age. Plan change-outs against production targets, keep one spare mantle and a concave set in site stock,.
Selection starts with three numbers: the largest lump the pit will deliver, the target tonnage, and the product size the next stage needs. Feed opening must clear the largest lump with margin — the ZK series takes feed up to 1,800 mm. Capacity should be read at the real discharge setting from the tables, not at the brochure maximum. And ore character matters as much as size: share a crushability and abrasiveness analysis with the manufacturer, because copper ore, gold ore, iron ore and granite of the same hardness still wear liners very differently. For hard and abrasive ores in particular, confirm the liner material and chamber option at order stage.
