The Mn18Cr2 designation alone does not establish dimensional fit or service life. A useful enquiry identifies the requested component and gives the supplier enough information to review the proposed material against the application. Treat a material change and replacement-part identification as separate points to confirm. This guide prepares that discussion; it does not prescribe a grade or certify a casting.
Identify the bowl liner and installed arrangement
Record the crusher make, model and machine version, the chamber designation and the complete public reference number, including its suffix. Identify the bowl liner separately from the mantle. Add the required quantity and unit for each component, and state whether accessories are requested. If a number or chamber detail is uncertain, mark it as unknown and request confirmation against the installed arrangement before agreeing the replacement.
Describe the operating conditions and wear history
Provide the feed material, available feed-size information, operating setting and position in the crushing circuit. Include the current material grade if known, the service period and clear photographs of the worn surfaces. Explain what the maintenance team wants to review, such as uneven wear or a replacement interval that no longer suits the operation. Observations and photographs support a technical review; they do not establish the cause of damage on their own.
Compare the material specification on the quotation
Ask the supplier to state the proposed grade and, where specified, the applicable material standard and revision. Keep the original designation in the enquiry rather than substituting a similar grade name. Separate the requested material from what the supplier has confirmed. Agree which composition, process or inspection information will be provided for this order, the acceptance basis and any additional charges. Do not treat a general material table as the specification for the supplied part.
Read material records with their limits in view
Check that the report identifies the material being tested and states the relevant result and basis of comparison. If the report applies to a heat or batch, ask how that record is linked to the delivered part. Keep the original supplier record in the private order file.
Do not decide that a liner will last longer from a manganese figure alone. Material selection and service conditions need a separate technical review. A chemistry result does not establish dimensional fit, and an example report does not certify another shipment.
Use our crusher parts quality-document checklist to agree the records needed for the order. Document availability and any inspection charges must be confirmed in the quotation.
Send the details behind the price request
For each line, include the machine version, cavity designation, complete public reference if available, requested material and quantity. Ask the supplier to itemize mantle, bowl liner and accessories. State the destination and commercial delivery term, then ask what inspection evidence, packing and delivery commitment are included. There is no useful universal price per liner: geometry, material, supply scope and freight arrangement must be known for the order at hand.
Send your replacement-parts list to GUBT
Chengdu GUBT Industry Co., Ltd. supplies aftermarket replacement parts. Brand and model names identify equipment applications and do not imply affiliation with the original equipment manufacturer. Supply scope, material and inspection requirements are confirmed for the individual quotation.
