Specify the opening, not only the mesh count

When ordering a replacement for a gyratory screen, a mesh count alone may not describe the required separation. Opening size also relates to wire diameter and the applicable mesh convention. This article focuses on preparing an unambiguous replacement specification.

Start with the existing approved specification

Check the machine manual, approved spare-parts list and previous accepted order. Record the deck identification and required aperture in a stated unit. If a sieve or mesh standard is used, identify it explicitly. Avoid converting a mesh number to an opening from an unverified chart.

Describe construction and mounting

Record the wire diameter, material grade and weave where applicable. Confirm the frame dimensions, sealing profile and attachment arrangement using the equipment drawing. A replacement that has the intended opening may still be unsuitable if its frame or mounting does not match the machine.

Check the received component

Compare identification and dimensions against the purchase specification before installation. Inspect for transport damage and confirm the inspection documents required by the order. Any discrepancy should be resolved with the supplier rather than corrected through an unapproved modification on site.

Verify separation after installation

Fit the component under the manufacturer maintenance procedure and complete the approved restart checks. Sample the outlet fractions against the process requirement. For a gyratory screen mesh inquiry to Tianteng, provide the aperture, wire and frame information together with the machine identification. A complete specification helps reduce ambiguity during the replacement discussion.