Engineering notes
Short technical notes on pressure stages, filter cleanliness, cartridge valves and gear pump selection.
A cost-focused comparison between Hydac gear pumps and brushless DC motors for industrial drive applications—covering acquisition cost, installation, energy, maintenance, and performance, with real numbers from a 2025 specification project.
2026-08-24 / HYDAC Engineering DeskComparing HYDAC official homepage vs a HYDAC industrial parts reseller for genuine filters, top gear motors, servo motor control and VFD replacements. A purchasing administrator shares what to check before you order.
2026-08-21 / HYDAC Engineering DeskA 5HP 3 phase induction motor needs a properly sized VFD, but horsepower alone won't tell you which one. Here's the step-by-step checklist I've used on 120+ replacement jobs, including the steps most people miss, plus guidance on servo motor repair and keeping the right industrial spare parts on hand.
2026-08-21 / HYDAC Engineering DeskWhat motors are compatible with VFD? A practical buyer's guide to squirrel cage induction motors, AC motor diagrams, and verifying HYDAC industrial parts.
2026-08-20 / HYDAC Engineering DeskI've spent six years ordering industrial drive components and made $14,000 worth of mistakes with HYDAC filters, gear couplings, and stepper motors. This 6-step checklist covers the traps I hit so you don't.
2026-08-20 / HYDAC Engineering DeskA procurement manager's field notes on buying HYDAC industrial parts: why filter specs beat price, how to spec valve electric actuators, when to choose a brushless AC motor, and what a servo motor actually adds.
2026-08-19 / HYDAC Engineering DeskA procurement manager explains why total cost of ownership beats unit price when sourcing industrial components—ball bearings, induction motors, and HYDAC filters included.
2026-08-19 / HYDAC Engineering DeskAn admin buyer's practical checklist for ordering induction motors, Century AC motor replacements, HYDAC industrial supplies, and VFD applications.
2026-08-18 / HYDAC Engineering DeskA HYDAC quality inspector shares a real gear-selection story involving a gear pump, straight bevel gears, a worm gear reducer, and the evergreen question: which gear is most likely to use a spur gear?
2026-08-18 / HYDAC Engineering DeskA maintenance engineer shares hard-won lessons about HYDAC catalog PDFs, industrial parts, servo motor repair, squirrel cage induction motors, and VFD speed control — with a total-cost mindset.
2026-08-17 / HYDAC Engineering Desk