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Engineering notes
Selection, sizing and the details that decide whether a machine commissions in a day or a week. Written for the people who specify, not for the search engine.
How to choose an HMI panel for an export machine
Screen size is the last decision, not the first. The cut-out, the protocol list and the destination market settle most of the panel before the diagonal is ever discussed.
Read Motion · 9 minServo sizing without the spreadsheet
Three numbers decide a servo axis: load torque, inertia ratio and the speed you actually need. The rest is margin and cable length.
Read Motion · 6 minPulse or EtherCAT: where the bus starts to pay
Pulse control is cheaper per axis and perfectly adequate — until axes have to move together. The crossover is earlier than most people expect.
Read Reliability · 5 minIP65 front or IP67 whole unit: what the second number buys
IP65 on the front panel protects the face. It does not protect the mainboard from the water that runs down the back of the door.
Read Engineering · 6 minPlanning PLC I/O with 20 % headroom
Every machine grows by a sensor or two per revision. The cost of headroom at the quotation is a fraction of the cost of a second controller at the retrofit.
Read Reference · 7 minReading a Rockhood model code
Every part number states its own specification. Once the fields are known, a quotation can be read like a wiring diagram — and an order can be checked before it ships.
ReadNext step
Tell us what the machine has to do.
Send the axis count, the I/O list or a photo of the existing panel. You get a model recommendation, a wiring note and a quote — usually within one business day.