You need to be more specific with a problem description. There are many reasons for wear. It is helpful to concentrate on your problem. First, give some details on:

1. product strength, size and its properties

2. rate through crusher and if continuos or highly intermitent

3. crusher manuifacturer and size or model

4. concave and mantle shape being applied

5. how crusher is fed - ie choked or light flow wrt crusher size

THis last point is referencing the wear brought about due to product heaving in crusher bowl if you do not keep bowl full. Keeping the crusher opening full holds the rock in the crusher bite from slipping upward during the pinching cycle. When the rock breaks during crushing, much of the explosive fracture causes reverse motion of the material above product unless it is captured.

There are different concave and mantle forms/shapes that are ideal or optimized for certain products, strength and size distribution.

Have you discussed this problem with Metso, Kobe Steel, or other cone crusher mfgrs.? We have worked with both of these suppliers and can vouch for their understanding of cone crusher physics. ■

If the profiles are correct & the feed is operating correct, you can improve the wear life by changing to a better grade of manganese steel.

I would recommend the use of M6 manganese steel, manufactured by Yoonsteel in Ipoh, Malaysia, for problems such as this.

We have used this material successfully in many high abrasion applications, and can generally improve liner life by between 35 and 50%. ■

Dear Sir,

I am a free consultant on wear-concerned questions and would like to offer my expertise.

Your question is not quite clear to me as there is wear on the cones as well as on the concave linings.

Both sections can be discussed and I would also like to know the wear-conditions like the type of media being crushed, temperatures of surroundings and type of base material of the crusher.

We have optimized technologies for reconditioning such crushers up to five times with guarantee for minimum double the lifetime of a new crusher like the NIHARD 4 type base-material.

Please do not hesitate contacting me on my direct E-Mail address.

Please also let us know your full address details.

Thank you very much and kind regards

Manfred Wiegel ■

Are you using the correct backing resin & application procedures? ■

Mr Azhar,

We have used M6 steel successfully in many applications - iron ore, copper & gold ores, quartz & bluemetal to name a few.

I represent Crushing and Mining Equipment pty ltd in Australia, and can assist you if your mine is in Australia or Indonesia. We offer a consulting / liner wear analysis service and have solved similar problems many times.

If you are closer to Malaysia, you should contact Yoonsteel on 605-545 1700. They will be able to discuss your application and provide you with any information you require.

Regards,

Brett Holmes

Crushing and Mining Equipment pty ltd

ph: 618 9437 1477

email: b.holmes@crushingandmining.com.au ■

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