Stack Sizer Screening
Stack sizer screening is a direction on the supplier PU page, with its own panel page on this site. This article describes the direction in plain terms and turns it into inquiry questions.
What the stack sizer direction covers
The stack sizer direction covers screening work where a stack sizer is the machine named in the inquiry. The supplier PU page lists a mesh panel for stack sizers, and this site gives that panel its own page. An inquiry in this direction names the stack sizer, so the reply addresses the stack sizer panel rather than the general panel range.
A stack sizer inquiry follows the same discipline as any panel inquiry: name the machine, name the panel direction, describe the material and the setting, and ask. The direction matters because a panel suggested for a general screen may not be the panel suggested for a stack sizer, and the reply needs the direction stated to judge.
Where the chain includes other steps, name them: a crusher before the sizer, a washer after it, or a further screen. The reply can then judge the stack sizer step as one step among others, and the buyer can check the suggestion against the whole chain.
Describe the stack sizer task
Describe the material in ordinary words: what it is, whether it runs fine or coarse, and whether it arrives wet or dry. Describe the setting: indoor or outdoor work, and the duty, steady or intermittent. Describe the stream that matters most, and what happens to the stream held back.
Describe what the stack sizer step must give the next step. A sizer step that feeds a washer has a different result in mind from a sizer step that feeds a further screen, and the reply should be asked to address the result the buyer actually needs.
Where a stack sizer step already exists, describe how it performs today: what passes well, what struggles, and what the buyer hopes to change. A reply grounded in that experience can suggest a panel for a stated reason.
Panel questions for a stack sizer inquiry
Ask which mesh panel the reply suggests for the stack sizer task described, and ask what makes that panel the suggestion for this task. Ask how the panel is fitted to the stack sizer named, and ask what the buyer must check on arrival.
Ask whether the suggested panel suits the duty and the setting described, and ask what limits apply. Ask about availability for the panel named, and ask about certificates in the standard form used on this site: certificates are available upon request.
Ask about the minimum order quantity, the lead time, and the price for the items actually named, and ask for confirmation of those terms before payment. Ask which documents accompany an order. Keep those questions in the same message as the task description.
Stack sizers and the wider media range
The stack sizer panel sits inside the wider screen media range, which also covers polyurethane screen panels, fine screens, special screen panels, self-cleaning screens, and poly ripple screens. Where the task could suit more than one surface, name the surfaces under consideration, and ask the reply to compare them for the stack sizer task.
A comparison grounded in the task is worth more than a comparison in general terms. Name the material, the setting, and the stream that matters most, and ask the reply to weigh each surface against those points. The buyer can then judge the comparison directly.
Where the task is firmly a stack sizer task, say so, and do not dilute the message with general panel questions. A focused inquiry is answered faster than a message that spreads across the whole media range.
What to leave for the reply
No specification table is published on this site, and no figure for any stack sizer panel is stated. Fitting, limits, availability, and documents all belong in the reply, tied to the items actually named. A message that asks for them, rather than assuming them, is the message most likely to be answered in one round.
Where the reply suggests a panel different from the one first named, compare the suggestion with the task description: the material, the setting, the duty, and the stream that matters most. A suggestion that fits those points deserves attention, whatever name it carries.
Keep the thread anchored: one message per stack sizer task, with the machine and the panel direction named together, and follow-up messages repeating both names alongside each new point.
A short checklist before sending
Read the message once for names: the stack sizer and the panel direction are named, and the steps before and after are named where the chain has them. Read it once for questions: the panel suggestion, fitting, limits, availability, certificates, and commercial terms are all asked.
Read it once for gaps: anything the buyer does not know is framed as a question, not as an assumption. Attach the task description, not a specification: the material, the setting, the duty, and the result the step must give.
Send the message, and judge the reply against the task description when it arrives. A reply that addresses the task, the material, and the setting is a reply the buyer can act on.
Stack sizer panels and neighbouring steps
A stack sizer step rarely stands alone. Name the step that feeds the sizer and the step the sizer feeds, and describe what each step must receive. A panel suggested for the sizer step alone may still disappoint if the feed it receives has changed, or if the next step needs a different result.
Where the upstream step is a crusher, describe the crushed feed in ordinary words, and ask the reply how the suggested panel suits that feed. Where the downstream step is a washer, describe what the washer must receive, and ask the reply how the sizer step serves that need.
Keep the sizer inquiry focused: the machine, the panel direction, the feed, and the result the next step needs. A message that spreads across the whole media range loses the sizer direction, and the reply must then ask which direction the buyer means.
Describing the feed to a stack sizer
The feed to a stack sizer deserves its own paragraph in the first message. Describe the material, the way it arrives, and whether the arrival is steady or in surges. A sizer step that receives surges faces a different task from one that receives a steady stream, and the reply should be asked how the suggested panel suits the arrival pattern described.
Describe the fine fraction in the feed in ordinary words, and describe what the sizer step must separate from it. Name the stream that matters most, and name what happens to the rest. A reply that knows the feed and the desired result can suggest a panel for a stated reason.
Where the feed has changed recently, say so, and describe the change: a new source, a new upstream step, or a new blend. A panel that suited the old feed may not suit the new one, and the reply needs the change stated to judge the panel afresh.
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