Mn jaw liners

Jaw Plate Set

Manganese jaw plates sized for primary circuits that eat abrasive feed without early cheek washout.

Jaw Plate Set
Mn13 / Mn18 optionsGrade
180 to 420 kg per plateTypical mass
OEM-compatible profilesSeat
Work-hardening on feedHardness

Why plants choose Jaw Plate Set

Quarries lose hours when jaw plates crack early or seat poorly. This set ships with seat notes, hardness bands, and a change window that plant leads can defend.

  • Mn grade options for abrasive rock
  • Seat and cheek clearance notes
  • Change-window checklist for shift handoff
  • Pairs with cheek plates and toggles

Specs · Fitment · Service

GradeMn13 / Mn18 options
Typical mass180 to 420 kg per plate
SeatOEM-compatible profiles
HardnessWork-hardening on feed
LeadStock or cast window
RegionGauteng and coastal showrooms

Jaw plates for hard-working plants

Every primary jaw crusher at a South African quarry, mobile contract circuit or recycling yard depends on its jaw plate set to bite into abrasive stone and keep output moving. When the feed is hard quartzite from the Highveld, round granite boulders or stubborn dolerite, standard grades often wash out early. These jaw plates are cast in manganese (Mn13 or Mn18) and built specifically for the kind of high-impact, high-abrasion conditions that stop production if you run the wrong liner. Abrasive fines accelerate wear at the jaw ends and corners, while tramp steel in recycled material can spell disaster if the plate cracks or the toggle doesn’t give.

  • Primary and mobile jaw plants
  • Handles quartzite, granite, dolerite, recycled feed
  • Withstands heavy, uneven loading

What ships with your Jaw Plate Set

When you order a jaw plate set from Crusher Consumables, you receive two manganese jaw liners in your selected grade, along with a seat note pack that flags cheek and seat clearances for your machine’s OEM profile. Hardness bands help you track work-hardening on the liner as tonnes go through. The set includes a change-window checklist, making shift handover simple for plant leads managing high wear. Mass ranges from 180 to 420 kg per plate, so safe lifting is a must. Options for stock or just-in-time casting mean there’s a window to suit urgent breakdowns or planned campaigns.

  • Choose Mn13 or Mn18
  • Seat and cheek fit notes included
  • Change-out checklist supplied

South African wear conditions and plate choice

Joburg’s quartzite wears even the best liners fast, while in the Karoo and coastal quarries, salt exposure and clay build-up introduce new complications. In Durban’s humidity or with Cape southeaster winds blowing dust, you need to keep an eye on seating, as fines pack in behind the plate and can threaten tightness. Recycle yards introduce rebar and tramp, so a well-matched toggle plate and cheek set are vital. For all these conditions, Crusher Consumables can advise on the optimal manganese grade and supply the correct profile to fit your plant’s make and region.

  • Highveld: quartzite, granite, dolerite
  • Coastal: salt, fines, humidity
  • Recycling: tramp, rebar, dust

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