Define the approval question
Shear-resilient should describe demonstrated application behavior, not a universal property guaranteed by a marketing label. A buyer needs to know which contact and mechanical conditions were tested and whether the supplied grade can reproduce that result through the installed centrifuge.
Identify the product code, representative sludge and operating constraint before requesting a commercial commitment.
Locate the relevant stress
Map solution transfer, sludge injection, pumps and the centrifuge feed path. Record current machine settings, solids and throughput. The centrifuge operating guide supplies the baseline sequence.
Keep initial activation energy distinct from later handling of mature polymer solution. A useful comparison should not deliberately damage one prepared solution while protecting the other.
Specify the comparison evidence
Request identified candidates and a preparation record. Where a controlled shear screen is available, apply a repeatable method to the same feed and dose basis, then compare fines and recovery. Use the result to narrow the set rather than claiming the bench device exactly reproduces the machine.
The trial profile should stay tied to actual evidence; no catalogue adjective substitutes for centrate and cake measurements.
Approve production performance
Run the candidate against the incumbent under comparable stable settings. Measure centrate solids, cake, throughput and calibrated consumption. Test representative feed and load changes before fixing the recurring order scope.
If machine tuning is needed, report initial substitution and subsequent tuned results separately. This allows procurement to see which benefit came from the product and which required an operating change.
Challenge a favorable comparison
A candidate that gives large bench floc but loses capture after the feed zone has not met the proposed shear duty. Raising dose may be a valid trial point, but its cost and output must be evaluated rather than hidden behind the resilience claim.
Record the unresolved boundary with the trial result. An expected operating benefit is not a measured saving or an unrestricted product guarantee.
Keep the acceptance record
| Buying check | Evidence | Acceptance limit |
|---|---|---|
| Stress | Mapped contact and machine path | Relevant scope stated |
| Screen | Repeatable method and dose | No universal resilience claim |
| Production | Centrate, cake and throughput | Commercial duty demonstrated |
Retain sample identity, measured preparation conditions and synchronized feed and outlet results. Use the record to distinguish an agreed product change from a change in sludge or equipment.
Prepare the supplier brief
Send machine and injection details, current product, preparation, solids loading and baseline outputs. Ask the supplier for the tested scope behind the recommendation and the commercial code associated with that evidence.
Send the evidence through the cationic emulsion sample and RFQ form. Confirm the offered code, availability, packaging and document scope with Gongyi Xinqi Polymer Co., Ltd. before ordering.