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Decoiler Guide
How Much Maintenance Does a Decoiler Need Each Year?Oct 15,2026Most decoiler maintenance schedules are written in months, and the machine wears in hours. This article builds an interval plan on three counters — running hours, coil changes and tonnes uncoiled — with checks at 250, 1,000 and 2,000 hours plus an annual alignment measurement. It lists the ten checks that prevent most unplanned decoiler and uncoiler stops, four cases where a calendar plan misleads you, and which parts belong on the shelf.- What Happens When a Coil Breaks at the Decoiler?Oct 14,2026A 6-tonne coil parted at an uninspected butt weld 40% into the coil, and eleven seconds passed between the break and the line stop. This is what the hold-down arm, the loop interlock and the brake did in that window, the three conditions that turn a break into a line-down event, and the four cases where no hold-down arm can help.
- Why Does a Decoiler Brake Overheat on Long Runs?Oct 13,2026Brake heat is a symptom, and three of the four common causes are settings rather than worn parts. The article separates a tension fault from a brake fault with one test, works the drag torque for a 5-tonne coil down to the core radius, and marks the cases where a hot brake is normal and should be left alone.
- Which Coil Loading Method Fits Your Decoiler?Oct 12,2026How a coil reaches the mandrel decides cycle time, floor space and operator exposure before the material is even unwound. This article compares crane and C-hook, coil car, ramp loading and twin mandrel, and maps each one to coil mass and changeover rate. It also names the cases where the most automated choice is the wrong purchase.
- Is Your Decoiler Payoff Speed Matched to the Press?Oct 10,2026A press consumes strip in bursts while the payoff side runs continuously, and confusing average demand with peak demand is the root of most sizing errors. This article works a 300 mm pitch at 60 SPM through the arithmetic, shows how coil diameter changes the answer, and lists what to measure on the first coil.
- Why Does an Uncoiler Need a Snubber Roll?Oct 9,2026A snubber roll rides on the coil outside diameter, keeps wraps tight and adds a small, steady back tension. This guide explains the four symptoms of a loose coil, how to tell a snubber problem from a mandrel or brake problem, and how a snubber compares with a hold-down arm and a peeler. It also sets out five cases where a snubber roll will not help.
- Is Your Uncoiler Creeping Along the Mandrel?Oct 7,2026Creep 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.
- How Does a Coil Reel Handle an Out-of-Round Coil?Oct 6,2026An 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.
- Which Decoiler Drive Suits Your Coil Line?Oct 3,2026A 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...
- How Much Coil Car Capacity Does a Decoiler Need?Sep 26,2026A coil car is bought on load and lift height, but it is specified on the worst coil the line will ever run. This works through the capacity calculation for a 5 to 15 tonne range, the lift height that is usually wrong etc.
- Which Alignment Errors Throw a Decoiler Off the Line?Sep 23,2026Strip that runs to one edge is usually blamed on the guides or the die, when the cause was set in concrete at commissioning. This covers the four alignment errors that survive installation...
- How to Change Over a Decoiler to a New Coil Size?Sep 21,2026Coil size changes are the most repeated job on a coil line and the one most often done from memory. This is the sequence in the order the checks matter, from the coil ticket and car alignment.
- Is Your Slab Strong Enough for a Heavy-Duty Decoiler?Sep 20,2026A 12-tonne coil on a slab nobody checked is the most common installation delay on a coil line. This works through the load arithmetic, the four load cases a machine datasheet omits, when a separate foundation block is cheaper, and the cases where the concrete was never the problem.
- How Does a Decoiler Mandrel Grip a Coil?Sep 18,2026Braking torque passes through a friction joint between mandrel segments and the coil bore, and that joint has far more capacity than the brake can demand. The expansion cycle step by step.
- How Do You Specify a Decoiler for a Coil Line? Capacity, Type, Mandrel and ControlSep 18,2026A decoiler is sized by the coil, not by the press. This guide runs the specification in the order that works: the six coil numbers that set capacity, how weight and width cap the frame, when hydraulic braking earns its cost, what the mandrel interface has to hold, and where a correctly specified machine is still the wrong answer.
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