| Protection structure |
Spring safety device with mechanical iron-release protection | Bottom single hydraulic cylinder with hydraulic clearing and overload protection | Multiple hydraulic cylinders with laminated crushing and overload protection |
| Main working condition |
Small and medium aggregate plants, old mine upgrades and lower-budget projects | Standard secondary / fine crushing in aggregate lines; common hard-rock applications | Large mines, premium aggregate, very hard rock and high-capacity lines |
| Cavity type |
PYB coarse / PYZ medium / PYD fine cavities | S coarse cavity and F fine cavity | EC extra coarse, M medium and EF extra fine cavities |
| Maximum feed size reference |
75-215 mm, depending on 600-1750 specifications | 175-400 mm, depending on GPY100-GPY400 | 185-420 mm, depending on HPY200-HPY800 |
| Discharge range reference |
3-60 mm; ordinary mechanical adjustment | 6-85 mm; hydraulic discharge adjustment | 6-90 mm; fine hydraulic adjustment according to cavity and model |
| Finished particle shape |
Basic cubical aggregate; flaky content depends strongly on feed and screening | Good aggregate shape for common road aggregate requirements | Laminated crushing for premium aggregate shape; final flaky content still depends on process conditions |
| Automation level |
Manual discharge adjustment; no automatic clearing | Hydraulic clearing support and semi-automatic control | PLC and load-monitoring options can be discussed for automated production lines |
| Maintenance profile |
Lower-cost parts and simple mechanical maintenance; blockage often needs manual handling | Simpler hydraulic structure, fewer operating steps and easier cavity clearing | Higher load-bearing structure for long-term heavy-duty production; larger parts and higher configuration level |
| Investment level |
Lowest equipment investment among the three types | Medium investment and common market option | Higher investment, suitable for long-term scale production |
| Typical capacity reference |
15-420 t/h | 40-720 t/h | 60-1100 t/h |