| Grade | Mn18 / Mn22 |
|---|---|
| Circuit | Primary gyratory |
| Mass | Heavy |
| Supplier | our contact form |
Use our contact form for a tailored pack.
Also see wear notes and projects.
Understanding mantle grades and profiles
South African mines typically choose between Mn18 and Mn22 austenitic manganese for primary gyratory mantles. Mn18 suits moderate-impact, moderate-abrasion jobs, while Mn22 is recommended for longer campaigns or highly abrasive feeds. Both grades work harden in service, forming a tough outer shell after the first run. Check your OEM profile before ordering: a correct match improves nip angle and crushing chamber performance.
Mass is critical. Always confirm the mass range for your crusher, as the wrong weight can affect rotor balance and liner fitment. For most primaries, mantles weigh 180 to 420 kg. We match the supplied part to your make and model.
How to measure your existing mantle and confirm fit
Before ordering, inspect and measure your worn mantle. Key dimensions include the base diameter, height, and seating profile. A tape measure and vernier caliper will cover most checks, but if in doubt, send us photos from several angles. Also, note any unusual wear patterns or cracks. For crushers where the serial plate is accessible, send the model and serial number.
A clear photo of the chamber and any marking on your current mantle helps us confirm the correct profile. This avoids costly downtime from incorrect supply. If your site has a spare mantle, compare dimensions before fitting.
- Base diameter
- Height
- Seating profile
- Crusher model and serial
What to send us for a quick accurate supply
For fast turnaround, email us detailed photos of your worn mantle, the crusher serial plate, and a note on the feed type and typical campaign length. If you have previous liner reports, share those too. Our team will match your requirements and confirm the correct part.
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