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Run time per coil is one of the few line numbers you can calculate on paper before buying anything, and it drives more operating cost than press speed does. This article works the arithmetic for a 5-tonne coil of 1.2 mm SPCC at 200 strokes per minute, from mass per metre to parts per coil and utilisation. It then runs the sensitivity and explains where the calculation overstates real production time.

A single-speed NC servo feeder takes three to four days to commission properly, and a high-speed line with servo pilot release takes five to six. This article walks the eight steps in order with a time budget.

Creep is axial movement of the coil along the mandrel, and it is routinely confused with rotational slip. This diagnostic article separates the two, ranks the four common causes by what they cost to check.

Electrical steel is thinner, harder and less forgiving than the mild steel most lines are set up for. This article compares three ways to feed transformer core stamping from coil, with a tradeoff table covering pre-cut blanks.

A payment schedule is a risk allocation, not a formality. This guide covers how to tie deposit, pre-shipment, shipment and acceptance milestones on an NC straightener feeder order to events you can actually inspect.

This is a procedure for proving flatness on an NC straightener feeder: naming the defect first, choosing an instrument that detects it, running six checks after a gauge change.

This field case traces the loss from a failing hole-position gauge back to a tacky film on the feed rolls, sets out the four-point check that found it, and states what an NC servo feeder cannot recover by adjustment.

An out-of-round coil puts the whole payoff load on two mandrel segments instead of four. This walks through the four measurements that matter, the arithmetic that sizes the clamping force, and the coil conditions where no coil reel can help and the coil should be re-wrapped or rejected.

This article ranks the failures that end a shift, sets the three numbers that size the line, and states where a coil line should not be used at all.

This guide covers what a coil line supplier reference genuinely proves, how to run the call in thirty minutes, what a site visit adds, and the three ways references mislead a buyer before the purchase order is written.

Strip walked to the left edge for three coils and the die's entry guide wore a step into its side. This traces the five causes of lateral drift on an NC straightener feeder, ranks them by the cost of checking.

A line rated at 300 strokes a minute would not hold feed length above 180, because the setting sheet had been copied from a 150 SPM job. This is the six-step method for timing an NC servo feeder to a press.

A manual decoiler ran a 400 kg coil at 12 metres a minute for two years. At 900 kg and 22 metres a minute the operator was holding the brake lever by hand. This compares manual, motorized and hydraulic drives...

A line that had run 1.5 mm SPCC for four years started rejecting every part when it switched to 2.0 mm copper busbar. This follows the trace: copper transfers to steel rolls, springback is lower so the steel recipe over-rolls it.