Ask the Expert
Thirty-five named specialists in conveying, feeding, screening, mixing and dust control. Tell us what you are running into and we route your question to the person whose technology zone it belongs to.
Asking a question is free and puts you under no obligation. Every answer carries the expert’s name and employer, so you can weigh it for yourself.
Your question
Material, throughput, what goes wrong. The more concrete, the more useful the answer.
Your question goes to a specialist at a manufacturer, and the reply comes back with their name and employer attached.
Not every zone has an expert on call at all times. If yours is one of them, we will tell you rather than route your question to someone who cannot answer it.
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What happens next
Material, equipment, throughput, and what is actually going wrong. A photo or a spec sheet helps, but is not required.
Our editors match your question to the technology zone it belongs to, and to an expert who works on that equipment every day.
The answer comes back to you by email, normally within seven days. When we publish it, it joins the question archive under the expert’s own name so the next reader finds it too.
What an answer looks like
What Is Saltation Velocity?
“Saltation velocity is basically the gas or air-conveying speed at which suspended particles being transported in a conveying system start to fall and deposit at the bottom of pipes or tubes. In order to prevent this, the minimum velocity in horizontal pipelines, also known as pick-up speed, is usually at least 20% higher than the saltation velocity.”
Answered by Todd Allison, Progressive Products, Inc
Read the full answer →Who answers
Rather choose your own expert? Every profile lists the technology zones that person covers.
Matthew BaileyBFM® Global Ltd.
David HyerThayer Scale
Doan PendletonVAC-U-MAX
Gareth MeeseEriez
Chris BrennanSpiroflow Ltd
Chris NawalaniecStedman Machine Company
Ian K HancockBradley Pulverizer
George BougioukasAcmon Systems
Steve MassmanGeneral Kinematics
Nathan GrubeBinMaster Level Controls
Todd AllisonProgressive Products, Inc
Helen YangRETTAR
Alex McCansHammerTek Corporation
Jeff LuckeSolimar Pneumatics
Adrian FordhamMoistTech Corp.
Aristidis MeliosVraykos Mechanical Limited
Rob van ZettenDMN-WESTINGHOUSE
Chris HarrisonTrantec Solids Handling Limited
Andreas HarndtHense Wägetechnik GmbH
Carrie HartfordJenike & Johanson
Arie SrugoPerMix
Sami KoskelaLaitex
James SeagravesEastern Instruments
Neal CassHydronix Ltd
Robert MeirickMaterial Transfer
Gerard van SchotenHethon
Ron Van Ostenbridge, Jr.Coperion
Pablo BalanBoss Products, LLC
Karen Van AelstStuvex International NV
Laurence MillingtonVortex Global Limited
Russell GrottoElcan Industries Inc.
Tim PorcoErie Technical Systems Inc.
Emre ErgunIEP TechnologiesFAQ
Nothing. Asking a question is free and puts you under no obligation.
That is the intention, and a published answer helps the next reader with the same problem. We do not publish everything we receive. Tell us in advance what should stay out — a customer name, a plant location, a figure — and it stays out.
A specialist working at a manufacturer in the relevant technology zone. Every answer is published under that person’s own name and employer, so you can see who you are reading and weigh the advice yourself.
Leave the technology zone on the default option. Our editors read every submission and route it to the zone it belongs to.
There is no fixed turnaround. Your question goes to an expert once our editors have matched it to the right technology zone. Some are answered within days, others take longer, and if no expert is available for your zone we will tell you rather than leave you waiting.
If your engineers answer this kind of question every week anyway, put their name on it. Experts are listed with their photo, their employer and the zones they cover.
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