A Vietnamese customer purchased a 150-ton-per-hour crushing production line from Shimeite Machinery.

The Solution: A Unique Two‑Stage All‑Jaw Crusher Circuit

Different from traditional jaw‑cone layouts, this plant uses a two‑stage jaw crusher system for higher robustness and simplicity when processing abrasive hard rock.

1.Primary Crusher: Jaw Crusher PE600x900

This heavy‑duty jaw crusher handles large raw material up to 500mm directly from the quarry. With a large feed opening and strong crushing force, it efficiently reduces hard andesite to a medium size of about 100–150mm for secondary processing.

2.Secondary Crusher: Fine Jaw Crusher PEX300x1300

Two sets of fine jaw crushers are used in the secondary stage instead of a cone crusher. Oversized material from the screening stage is evenly distributed to these two units for further fine crushing.

Main benefits:

• Cubical product shape ideal for concrete and road construction

• Simple mechanical structure, easier to maintain in remote areas

• Dual units provide redundancy; one can maintain while the other runs

3.Process Flow

Raw material → Vibrating feeder → Primary jaw crusher → Vibrating screen

• Finished sized materials go to product piles

• Oversized materials go to two fine jaw crushers

• Crushed materials return to the screen in a closed circuit

• All final products meet required grading standards