Jaw Crusher Plate FAQ: Specifications, Materials, Ordering and Support

A jaw crusher plate is a replaceable wear component used in crushing equipment. It contacts raw material during the crushing process, so its material and geometry are important considerations when selecting a replacement. The product range includes high-manganese steel, high-chromium cast iron, and bimetal composite plates.

Mn18 high-manganese steel and Cr26 or Cr28 high-chromium cast iron are intended for highly abrasive materials such as granite or basalt. Mn18 offers higher work-hardened hardness than Mn13, while the Cr-series is intended for high abrasion resistance. The final selection should be confirmed against the specific crusher and feed conditions rather than made from the rock name alone.

Mn13 is described as a standard grade for general or medium-abrasive crushing. Its documented initial hardness is 200–250 HB and its work-hardened hardness is 450–550 HB. Mn18 is described as a higher-manganese option for more abrasive conditions, with an initial hardness of 220–270 HB and a work-hardened hardness of 500–600 HB. These ranges are product-material specifications; they do not establish a guaranteed service life for every application.

Buyers should confirm at least the crusher application, required material grade, plate geometry or tooth profile, and dimensional fitment. The range includes crusher-specific engineering, various tooth profiles, and dimensional inspection for fit. Material choices include Mn13, Mn18, Cr26, Cr28, and bimetal composites, but the suitable option depends on the application and material abrasiveness.

The quality checks include spectrometer analysis for material verification, ultrasonic testing for internal structural defects, and dimensional inspection. Bimetal plates use vacuum casting for metallurgical bonding between a high-chromium wear surface and a manganese-steel base.

A buyer should clarify the crusher type and model, required dimensions and fixing details, feed material and its abrasiveness, preferred or recommended alloy, and tooth-profile requirements.