Hydraulic Cone Crusher for Hard Rock
A hydraulic cone crusher for hard rock is the secondary or tertiary machine that reduces granite, basalt and diabase with a Mohs hardness of 6-7 and a compressive strength of 150-300 MPa. Baichy builds two hydraulic lines for this duty: the multi-cylinder hydraulic cone crusher series from HP200 to HP800, and the single-cylinder CH series.
What Rock Types and Hardness Can a Hydraulic Cone Crusher Handle?
Granite, basalt, diabase and metal ores are the standard duty, published at a Mohs hardness of 6-7 with a compressive strength of 150-300 MPa.
• Granite and basalt aggregate: needle-and-flake content stays below 10%, meeting the aggregate requirements for C50 and C60 concrete.
• Metal ore feed for ball mills: iron, copper and gold ore, where discharge stability matters more than peak tonnage.
• Mine waste rock: mixed hardness with uncrushable material in the feed makes tramp iron protection the deciding feature.
HPC Multi-Cylinder Hydraulic Cone Crusher Specifications
Hydraulic Cone Crusher for Hard Rock
The HPC series controls its discharge opening and tramp iron protection with 4 to 8 hydraulic cylinders; one-touch opening adjustment and automatic wear compensation run without stopping production. Five cavity types are published for each size class.
| Model | Cavity Type | Feed Opening Size (mm) | Max Feed Size (mm) | Min Discharge Opening (mm) | Capacity (t/h) | Power (kW) |
|---|---|---|---|---|---|---|
| HP200 | Extra Coarse - EC | 185 | 145 | 19 | 145–250 | 160 |
| HP200 | Fine - F | 75 | 60 | 10 | 90–190 | 160 |
| HP300 | Extra Coarse - EC | 234 | 190 | 25 | 220–445 | 220 |
| HP300 | Fine - F | 107 | 85 | 14 | 145–280 | 220 |
| HP400 | Extra Coarse - EC | 295 | 240 | 30 | 300–630 | 315 |
| HP400 | Fine - F | 110 | 90 | 13 | 180–345 | 315 |
| HP500 | Extra Coarse - EC | 330 | 270 | 38 | 425–795 | 400 |
| HP500 | Fine - F | 135 | 105 | 16 | 270–535 | 400 |
| HP800 | Extra Coarse - EC | 350 | 280 | 38 | 570–1200 | 630 |
| HP800 | Fine - F | 220 | 175 | 16 | 370–800 | 630 |
Power (kW) is published once per model and repeated on each row. The output will vary according to different materials, feed particle size and other factors is the note published under the source table. The HP100 size class and the C, M, MC and EF cavity rows of HP200 to HP800 - 20 of the 30 published rows - are omitted here.
CH Single-Cylinder Hydraulic Cone Crusher for Hard Rock
CH Single-Cylinder Hydraulic Cone Crusher for Hard Rock
A single-cylinder hydraulic cone crusher sets its discharge opening and protects against iron with one cylinder under the main shaft, at a published adjustment range usually of 3-60 mm. An accumulator buffers impact force, and hydraulic cavity clearing lifts the moving cone in one operation.
| Model | Max Feed Size (mm) | Discharge Opening Range (mm) | Capacity (t/h) | Power (kW) |
|---|---|---|---|---|
| CH420 (DG100) | 155 | 10–32 | 46–128 | 90 |
| CH430 (DG200) | 185 | 13–38 | 69–208 | 160 |
| CH440 (DG300) | 220 | 16–44 | 114–395 | 220 |
| CH660 (DG500) | 321 | 16–51 | 177–662 | 315 |
Those rows are the Extra Coarse (EC) rows of the standard cavity type; the C, M, MF and F cavity rows, and the DG100S to DG500S Extra Coarse block, are omitted. Liner life is published at 8000-12000 hours with high manganese steel or composite alloy liners, and the closed dust-proof design at below 75 dB.
Which Cavity and Discharge Setting Should You Choose for Hard Rock?
For hard rock the cavity fixes the feed limit and the discharge opening fixes the product size, so both come from the table above.
• Extra Coarse (EC) takes the largest lumps: 350 mm feed on HP800 EC at 570-1200 t/h, 185 mm on HP200 EC at 145-250 t/h.
• Fine (F) produces the finest product: a 10 mm minimum discharge opening on HP200 F at 90-190 t/h, and 16 mm on HP800 F at 370-800 t/h.
• The discharge opening cannot be set below the published minimum for its cavity: 19 mm on HP200 EC, 38 mm on HP800 EC.
• Capacity inside one row is a range, not a rating: HP300 EC covers 220-445 t/h across its discharge settings.
Typical Hard Rock Crushing Configurations
Baichy publishes PE900x1200 jaw crusher (primary) - HP400 cone crusher (secondary) - HP300 cone crusher (tertiary) as the typical hard rock arrangement.
• Aggregate supply: lines producing 3000-10000 tons per day depend on automatic hydraulic compensation for liner wear to keep running 24 hours without stopping.
• Metal ore: a discharge opening fluctuation within ±2 mm keeps ball mill feed consistent and reduces grinding energy consumption by 10%-15%.
Published hard rock aggregate solutions start at the 150-200 t/h hard rock aggregate production line and above.
FAQ: Hydraulic Cone Crusher for Hard Rock
1. How much can a hydraulic cone crusher for hard rock process per hour?
Throughput runs from 145-250 t/h on HP200 Extra Coarse to 570-1200 t/h on HP800 Extra Coarse at 160 kW and 630 kW installed power. Every cavity row lists a range rather than one figure, because throughput depends on the discharge setting and the feed gradation.
2. Can a hydraulic cone crusher crush granite and basalt?
Yes. Granite, basalt and diabase at a Mohs hardness of 6-7 and a compressive strength of 150-300 MPa are the published duty of the multi-cylinder HPC series, and lamination crushing keeps needle-and-flake content below 10%.
3. What is the difference between a single-cylinder and a multi-cylinder hydraulic cone crusher?
A single-cylinder model uses one hydraulic cylinder under the main shaft for opening adjustment and iron protection. A multi-cylinder model uses 4 to 8 cylinders for one-touch opening adjustment and automatic compensation for liner wear without stopping production.
4. How does tramp iron protection work on hard rock?
When an unbreakable object such as a drill bit enters the chamber, the hydraulic system releases pressure automatically and the moving cone descends to discharge it, which prevents unplanned downtime on feeds carrying uncrushable material.
5. What is the minimum discharge opening for hard rock?
In the HPC table above the lowest minimum discharge opening is 10 mm, on HP200 Fine; HP800 Extra Coarse is published at 38 mm. Tight settings reduce throughput.
Baichy Heavy Industry
Baichy Heavy Industry is a high-tech mining equipment company integrating R&D, manufacturing, sales, and after-sales service. Focusing on crushing, grinding, and mineral processing equipment, we provide professional solutions to our customers. We are ISO9001:2015 、certified, and our products include mobile crushing palnts, crawler crushing plant, construction waste crushing plants, jaw crushers, sand making machines, cone crushers, fine crushers, grinding mills, ball mills, etc., all with reliable performance to meet diverse project needs.
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