How is the Closed-side Setting Selected for the Required Product Size?

The CSS is typically set at 60–70% of the desired top product size to allow for the spread in particle sizes produced by compression crushing. For example, a 20 mm top-size product normally requires a CSS of approximately 12–14 mm. The hydraulic adjustment system allows the operator to dial in the exact setting from the […]

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Can the THP Series Operate in an Open Circuit Without the Return Screen?

Yes – the return screen and return conveyor can be bypassed, and the plant can discharge all crusher output onto the main conveyor for classification by a separate static or mobile screen. Open-circuit operation is sometimes used when the downstream screen has capacity to handle the full product stream, or when two products are being blended […]

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What is the Difference Between a Cone Crusher Plant and an Impact Crusher Plant?

A cone crusher is suited to hard, abrasive rock such as granite, basalt, and iron ore. It crushes by compression, producing low wear-part consumption on hard material. An impact crusher is more effective on soft-to-medium rock such as limestone and concrete rubble, producing excellent particle shape at lower capital cost, but blow bar wear increases […]

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How Does the Closed-circuit Return Screen Affect Product Gradation?

The return screen aperture directly controls the maximum particle size in the final product. Oversized material is recirculated and reduced until it passes the screen – producing a tightly graded output with minimal oversize. Aperture selection depends on the required product size; multiple deck configurations are available for plants producing two or more sized fractions simultaneously.

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How Long do Blow Bars Last?

Blow bar life depends on material hardness and abrasiveness. On limestone, high-chromium blow bars typically run 200–400 operating hours before rotation or replacement. On abrasive material such as river pebble with silica content, expect 80–150 hours. We supply OEM blow bars in high-chrome and martensitic steel grades for all SLF and LF series crushers.

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Can the Plant Process Hard Rock Such as Granite or Basalt?

Impact crushers are optimised for soft-to-medium hardness material (compressive strength up to approximately 200 MPa) – limestone, concrete, river pebble, coal, and similar. For granite, basalt, or other hard abrasive rock above 200 MPa, a jaw or cone crusher plant is more suitable. Using an impact crusher on hard rock significantly increases blow bar wear and […]

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What is the Difference Between the AT250 Integrated and AT250 Standard?

Both use the same LF250 impact crusher, 65T crawler chassis, and 500 KW generator. The AT250 Integrated features a PLC intelligent control system with a visual touchscreen, real-time parameter display, fault history logging, and engine load-adaptive speed control. The AT250 Standard uses a conventional Schneider-based panel with VFD start on the crusher motor and direct […]

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Is Remote Monitoring Available?

An optional remote monitoring module can be added to the Schneider control cabinet, providing real-time data on crusher load, conveyor speed, generator output, and fault codes via a mobile app or web dashboard. This is recommended for operations where the plant runs unattended during shift changes or in remote locations.

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What is the CSS Adjustment Range on the Jaw Crusher?

CSS range depends on the specific SC-series jaw crusher model fitted. As a guide, the SC96–SC120 series supports a CSS range of approximately 60–150 mm, adjustable via rear wedge while the machine is stopped. Hydraulic CSS adjustment is available as an option for applications requiring frequent product size changes.

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