YZH High‑Performance Static Rockbreaker System for Jaw Crusher | BB430 Precision Oversize Control at the Crusher Inlet

How the BB430 static rockbreaker supports a jaw crusher

Jaw crushers lose efficiency whenever oversize or hard inclusions sit across the inlet or wedge between the jaws, forcing operators to stop and clear the blockage. The BB430 static rockbreaker is positioned at the crusher mouth so the boom can reach into the feed zone and apply rapid, controlled blows to fracture large rocks before they choke the chamber, then rake broken material into the nip area.

Because the system is static—fixed to a pedestal beside the crusher rather than on a mobile carrier—it can be optimized for this one job, with hydraulics tuned for fast impact cycles and structure sized for long‑term reliability.

Performance and efficiency characteristics

• Rapid, powerful impact cycles

• YZH static rockbreaker systems integrate a hydraulic mechanism and optimized fluid dynamics that produce quick, repeatable blows for efficient rock and concrete fracturing.

• The result is shorter clearing times and fewer interruptions to the crusher’s operating rhythm, improving overall plant throughput.

• Robust structure for continuous heavy use

• Constructed from high‑strength alloys and reinforced steel, the BB430 is engineered to withstand harsh conditions and continuous heavy breaking duty.

• The durable design minimizes wear, extending system service life and lowering maintenance frequency.

• Lower operating and maintenance costs

• By combining precision hydraulics with a strong mechanical frame, the system enhances crushing effectiveness while reducing unplanned downtime and associated maintenance costs.

BB430 working envelope (specification)

The BB430 static rockbreaker system offers the following working dimensions:

• Max. horizontal working radius: 6,770 mm

• Max. vertical working radius: 4,710 mm

• Min. vertical working radius: 1,640 mm

• Max. working depth: 4,710 mm

• Rotation: 170°

These values mean the boom can:

• Reach across the jaw crusher inlet and into the rockbox to deal with oversize at different positions in front of the feed opening.

• Work close to the mouth for detailed clearing or further out in the feed zone without relocating the pedestal.

Typical applications

The BB430 high‑performance static rockbreaker system is well suited for:

• Primary jaw crushers in quarries and mining sites where oversize is frequent and fast, reliable breaking at the mouth is essential.

• Stationary or semi‑stationary jaw installations where a dedicated, fixed rockbreaker station is preferred over mobile equipment.

By combining optimized hydraulics, a robust structure and a well‑sized working envelope, the YZH BB430 static rockbreaker system provides an efficient, long‑life tool for controlling oversize at jaw crusher inlets.