Factory-direct decoiler manufacturer · 200 kg–5 ton coils

Motorized Decoiler Machine for Stamping Presses

HENLI MT decoilers hold steel and other metal coils from 200 kg to 5 tons, 200–800 mm (8–31 in) wide, on an expanding mandrel and pay strip off as the leveler, servo feeder or press takes it. In North America the same machine is also called a motorized coil reel or an uncoiler.

The demonstration shows a fully equipped decoiler: pneumatic pressing arm, hydraulic expansion and VFD speed control. Mandrel expansion is by hand crank or hydraulic, chosen by coil weight; loop sensing is contact as standard, with photoelectric or laser tracking on request. Built in our own factory in Dongguan, China, and priced factory-direct from your coil data.

200kg-5 Ton standard range MT-200 to MT-800 model selection Motorized and manual stock reel options Metric / Imperial parameter table

Get a Free Quote Check Specifications

How a HENLI motorized decoiler works 60-second demonstration

Illustrative 3D demonstration of a fully equipped HENLI motorized decoiler: pneumatic pressing arm, hydraulic expansion and VFD speed control. Hand-crank expansion and the optional coil loading car are also shown.

0:00 / 1:00

Load the coil by crane or loading car.Hand-crank expansion.Hydraulic expansion.Lock the coil and hold it down.Jog the strip in, then set the speed.Let the loop start and stop the decoiler.Feed the press line.

Fully equipped decoiler shown

Pneumatic pressing arm, hydraulic expansion and VFD speed control on one machine. The coil loading car is shown as an option.

Hand-crank or hydraulic expansion

Hand crank: turn the crank on the mandrel nose.
Hydraulic: OPEN / CLOSE on the pendant.
The expansion type is chosen by coil weight.

Three loop-sensing options

Contact gantry sensor (standard): the loop touches the bar and the decoiler stops.
Photoelectric sensor: non-contact start / stop at the loop.
Laser tracking sensor: follows loop height for smooth speed control.

200kg-5 TonStandard and reinforced builds, quoted from your coil data.

MT-200 to MT-800Model range for common coil width and load requirements.

450-530 mm (17.7-20.9 in)Standard coil inner diameter reference.

VFD Box StandardExport machines ship with a VFD control box; pressing arm, hydraulic expansion, disc brake and coil car are options.

Overview

Coil Decoiler Machine Overview

As a factory-direct coil decoiler machine manufacturer and China-based decoiler supplier, Henli supplies standard motorized coil decoilers, motorized metal uncoilers, and manual stock reels for metal coil feeding applications. These decoiler machines support steel coil, steel strip, aluminum coil, stainless steel coil, copper strip, and other coil materials before downstream equipment such as stamping presses, shearing machines, cut-to-length lines, roll forming lines, and automatic coil feeding systems.

This page covers MT series coil decoiler machines selected by coil width, coil weight, and line layout. The basic standard models cover common load requirements from 500kg to 3 ton, while reinforced or custom structures can be built for higher load requirements after confirming coil width, coil O.D., mandrel structure, expansion method, and loading method. For heavier coil loads, hydraulic expansion requirements, or automatic coil loading, buyers can move to the heavy duty hydraulic decoiler and decoiler with coil loading car pages.

coil decoiler machine used before straightening and feeding line — Decoiler machine installed before straightening and feeding equipment for coil material handling.

HENLI motorized decoiler machine with expanding mandrel and A-frame coil retainers

The machine up close

The Decoiler Up Close

Every motorized MT decoiler starts from the same base machine: an expanding four-segment mandrel, the A-frame coil retainer and the VFD control box supplied on export machines. The options change how the coil is expanded, held, sensed and loaded.

Expansion: hand crank or hydraulic, chosen by coil weight.
Coil retention: A-type coil keepers inside and outside the coil; a pneumatic pressing arm as an option.
Loop sensing: contact gantry sensor as standard; photoelectric or laser tracking on request.

Selection logic

Choose the Decoiler by Coil Data and Line Layout

A coil decoiler machine should be selected from real coil data and line layout, not only from model name. Confirm coil weight, coil width, material thickness, coil I.D./O.D., line speed, loading method, and the downstream machine that pulls or receives the strip.

Confirm coil size.
Provide maximum coil weight, coil width, material thickness, coil inner diameter, and coil outer diameter.

Confirm line rhythm.
Tell us whether the decoiler works before a feeder, straightener, stamping press, shearing line, cut-to-length line, or roll forming line.

Confirm handling needs.
Select manual or hydraulic expansion, pressing arm, disc brake, coil loading car or a Delta VFD cabinet upgrade according to coil weight, loading frequency, operator safety, and workshop layout.

Standard types

Motorized Coil Decoiler and Manual Stock Reel

Standard coil decoiler machines support metal coils, control coil release, and keep the strip feeding smoothly into downstream equipment. Henli provides motorized coil decoilers for controlled powered pay-off and manual stock reels for simpler non-powered coil support.

Powered

Motorized Coil Decoiler

Controlled motorized pay-off for standard coil feeding lines that need stable strip release before a feeder, straightener, press, shearing line, or cut-to-length line.

Best forStable line rhythm and loop control
Typical useStamping, feeding, shearing, CTL, roll forming

Manual

Manual Stock Reel

Non-powered coil support for light to medium coil feeding work where the downstream machine can pull the strip smoothly. See the manual decoiler page for single, double-head and 2-in-1 non-powered options.

Best forSimple layouts and lower automation needs
ConfirmCoil weight, strip strength, pulling capacity

Compact

Small Decoiler

Compact decoiler configuration for narrower coils, smaller production cells, or entry-level strip feeding applications.

Best forLimited floor space and narrow coil stock
ConfirmCoil width, coil O.D., and safety clearance

Non-Powered Decoilers

For light coils where the feeder or straightener pulls the strip, HENLI also builds non-powered decoilers, with or without a pressing arm. For a manual decoiler for sale, see the non-powered manual decoiler page for models and layouts.

Non-powered manual decoiler with hand-crank mandrel and brake handwheel — Non-powered manual decoiler with hand-crank mandrel.

Non-powered decoilers in the workshop, the front machine with a pressing arm — Non-powered decoilers; the front machine has a pressing arm.

Upgrade rule: if coils approach the upper range of the standard model, or if coil width, loading frequency, operator safety, and mandrel expansion time become important, use a stronger configuration instead of treating every standard decoiler as the same machine.

Technical range

Decoiler Specifications: Standard Load and Reinforced Options

Use this specification area as a first-pass model guide before quotation. Final selection still depends on coil width, coil weight, material thickness, coil I.D./O.D., downstream equipment, and loading method.

MT-200200 mm (7.9 in)coil widthbasic 500 kg (1,100 lb)reinforced up to 1 ton (2,200 lb)

MT-300300 mm (11.8 in)coil widthbasic 800 kg (1,760 lb)reinforced up to 2 ton (4,400 lb)

MT-400400 mm (15.7 in)coil widthbasic 1 ton (2,200 lb)reinforced up to 3 ton (6,600 lb)

MT-500500 mm (19.7 in)coil widthbasic 2 ton (4,400 lb)reinforced up to 5 ton (11,000 lb)

MT-600600 mm (23.6 in)coil widthbasic 2 ton (4,400 lb)custom up to 6 ton (13,200 lb)

MT-700700 mm (27.6 in)coil widthbasic 3 ton (6,600 lb)custom up to 7 ton (15,400 lb)

MT-800800 mm (31.5 in)coil widthbasic 3 ton (6,600 lb)custom up to 8 ton (17,600 lb)

Specification	MT-200	MT-300	MT-400	MT-500	MT-600	MT-700	MT-800
Coil Width	200 mm7.9 in	300 mm11.8 in	400 mm15.7 in	500 mm19.7 in	600 mm23.6 in	700 mm27.6 in	800 mm31.5 in
Basic Standard Load	500 kg1,100 lb	800 kg1,760 lb	1 ton2,200 lb	2 ton4,400 lb	2 ton4,400 lb	3 ton6,600 lb	3 ton6,600 lb
Reinforced / Custom Max Load	Up to 1 tonUp to 2,200 lb	Up to 2 tonUp to 4,400 lb	Up to 3 tonUp to 6,600 lb	Up to 5 tonUp to 11,000 lb	Up to 6 tonUp to 13,200 lb	Up to 7 tonUp to 15,400 lb	Up to 8 tonUp to 17,600 lb
Coil I.D.	450-530 mm17.7-20.9 in
Coil O.D.	1200 mm47.2 in
Decoiling Speed	15 m/min49 ft/min
Approx. Size	0.9 x 0.9 x 1.2 m35.4 x 35.4 x 47.2 in	0.9 x 1.0 x 1.2 m35.4 x 39.4 x 47.2 in	1.2 x 1.3 x 1.3 m47.2 x 51.2 x 51.2 in	1.3 x 1.0 x 1.3 m51.2 x 39.4 x 51.2 in	1.4 x 1.0 x 1.3 m55.1 x 39.4 x 51.2 in	1.4 x 1.0 x 1.4 m55.1 x 39.4 x 55.1 in	1.5 x 1.1 x 1.5 m59.1 x 43.3 x 59.1 in
Drive Type	Motorized
Control Box	VFD control box, standard on export machines; Delta VFD cabinet available as an upgrade
Expansion Type	Hand crank or hydraulic, chosen by coil weight
Decoiler Motor Power	0.75 kW1 HP	0.75 kW1 HP	1.5 kW2 HP	1.5 kW2 HP	2.2 kW3 HP	2.2 kW3 HP	2.2 kW3 HP

Width class and load are separateMT model numbers identify the material-width class, not a fixed coil weight. For example, MT-500 and MT-800 can both be engineered for a 5-ton coil.

Basic model sets the starting priceThe basic standard load is 500kg for MT-200, 800kg for MT-300, 1 ton for MT-400, 2 ton for MT-500/600, and 3 ton for MT-700/800.

Higher load changes the structureReinforced or custom load versions require stronger frame/mandrel design and a separate quotation based on coil data.

Configurations

Decoiler Machine Configurations: What Each Option Looks Like

A decoiler is the first machine for sheet coils in a press feeding line. Every motorized MT decoiler — used as a steel coil decoiler, metal sheet decoiler or aluminum strip decoiler — is a vertical decoiler: the coil stands upright on an expanding mandrel, and all models start from the same base machine. The options below change how the coil is held, expanded, stopped and loaded. Each photo shows a real HENLI decoiler with the configuration named.

Standard on Every Motorized MT Decoiler

A short summary of the standard equipment; each option is shown with real machines further down.

standard accessories for coil decoilers with retainer loop control and expansion mandrel

VFD Control Box

Compact inverter for soft start and adjustable pay-off speed. Delta VFD cabinet as an upgrade.

Contact Loop Control

A contact gantry sensor under the loop starts and stops the decoiler with strip demand from the feeder, straightener or press; photoelectric or laser tracking sensing on request.

A-Frame Coil Retainer

Keeps the coil centered and limits side movement during pay-off.

Expanding Mandrel

Hand-crank or hydraulic expansion of the unwind shaft (uncoiler mandrel), chosen by coil weight.

Configuration Options at a Glance

Option	What is added to the machine	Choose it when	Photos
Delta VFD cabinet (upgrade)	Delta inverter in the control cabinet	You specify a higher-grade inverter for the line	VFD control box
Pneumatic pressing arm	Air-cylinder arm with a roller on the outer wraps	Thick, springy or loosely wound coils	500 mm decoiler
Hydraulic expansion	Hydraulic power unit and expansion cylinder	Heavier or wider coils, frequent coil changes	200 mm decoiler
Disc brake	Disc brake on the mandrel shaft	Heavy coils that must stop with little overrun	800 mm, 5-ton decoiler
Coil loading car	Hydraulic lifting car on rails	Heavy coils, limited crane access, safer loading	Coil car
Small-I.D. mandrel	Custom small-diameter mandrel	Coil bore below the standard 450–530 mm range	Small I.D.
Narrow-strip side plates	Large bakelite side plates	Narrow strip, such as 50 mm wide coils	Narrow strip
Large I.D. / O.D. reel	Long expansion arms and a large backplate	Coils outside the standard I.D./O.D. range	Large coils
Photoelectric loop sensor	Photoelectric sensor at the loop	Non-contact start / stop control	—
Laser tracking loop	Laser distance sensor for loop height	Surface-sensitive strip, changing line speed	Laser loop
Film peeling / recoiling	Film take-up or rewinding device	Protected coil surfaces, rewinding layouts	Other options

VFD Control Box: Standard on Export Decoilers

HENLI motorized decoilers for overseas customers are supplied with a VFD control box as standard. The compact inverter starts the mandrel gently and lets the operator set the pay-off speed to match the straightener, feeder or press. For lines that call for a higher-grade drive, a Delta VFD control cabinet is available as an upgrade at extra cost.

Item	Standard VFD control box	Delta VFD cabinet
Inverter	Compact inverter	Delta inverter
Start and speed	Soft start, adjustable pay-off speed	Soft start, adjustable pay-off speed
Supply	Standard on export machines	Upgrade, at extra cost
Typical choice	Standard stamping and feeding lines	Buyers who specify a higher-grade inverter

Why it matters for thick strip. In one customer line reported by HENLI, a decoiler with an ordinary control box started abruptly and the thicker material rubbed and scratched. After the box was replaced with a VFD control cabinet, the customer’s scratching problem was resolved. Read the case: how a VFD soft start reduces coil scratches.

VFD control box with run, stop and speed controls on a 500 mm motorized decoiler — Control box with built-in inverter on a 500 mm decoiler.

500 mm motorized decoiler with pneumatic pressing arm and VFD control box.

Pneumatic Pressing Arm (500 mm Decoiler Shown)

A pneumatic pressing arm (also called a hold-down arm) lowers a roller onto the outer wraps. It keeps thick, springy or loosely wound coils from springing open when the strip is cut or the line stops, and holds the coil end during threading. The 500 mm decoiler shown pairs the pressing arm with the standard VFD control box.

Best forThick or springy material and loosely wound coils
Works withManual or hydraulic mandrel expansion
GuidePressing arm set-up and safety limits

Hydraulic Expansion (200 mm Decoiler Shown)

Hydraulic expansion replaces the hand crank. A hydraulic power unit drives the expansion cylinder, so the mandrel grips and releases the coil bore at the push of a button instead of by hand. It is chosen by coil weight and coil-change frequency, on any width: the 200 mm decoiler shown combines hydraulic expansion, a pneumatic pressing arm and the VFD control box.

200 mm decoiler with hydraulic power unit, control box and pneumatic pressing arm — Side view: hydraulic power unit on the base, control box and pneumatic pressing arm.

Front view of a 200 mm decoiler with hydraulic expansion mandrel and pressing arm — Front view: four-segment mandrel, pressing arm and hydraulic unit.

Disc Brake for Heavy Coils (800 mm, 5-Ton Decoiler Shown)

A heavy coil keeps turning after the drive stops. A disc brake on the mandrel shaft adds braking torque, so the coil stops with less overrun and the strip loop stays under control. The 800 mm decoiler shown is built for 5-ton coils and combines a disc brake with hydraulic expansion, a pneumatic pressing arm and the VFD control box. Brake size is confirmed from coil weight, coil diameter and line speed; see when a decoiler needs a pneumatic brake.

800 mm 5-ton decoiler with disc brake, hydraulic expansion and pneumatic pressing arm — 800 mm, 5-ton decoiler with disc brake, hydraulic expansion and pressing arm.

Operator side of an 800 mm 5-ton heavy decoiler with control box — Operator side of the same 5-ton decoiler with its control box.

Decoiler with Coil Loading Car

A hydraulic coil car runs on rails in front of the decoiler. It lifts the coil to the mandrel centre and carries it onto the mandrel, reducing crane work and impact during loading. The decoiler shown also has a pneumatic pressing arm. Coil cars for 3–20 ton coils are described on the coil loading car page.

Motorized decoiler with hydraulic coil loading car on rails — Coil car with lifting cylinders on rails in front of the decoiler.

Decoiler with coil car, pressing arm and control box seen from the loading side — Loading side: coil car, pressing arm and control box.

Small-I.D. Custom Mandrel

When the coil bore is smaller than the standard 450–530 mm mandrel range, the mandrel and backplate are built to the customer’s coil. Send the actual coil I.D., O.D., width and weight for engineering review.

Custom decoiler with a small-diameter mandrel for small inner diameter coils — Custom decoiler with a small-diameter mandrel.

Side view of a small inner diameter custom decoiler — Side view of the small-I.D. decoiler.

Narrow-Strip Decoiler with Bakelite Side Plates

Very narrow coils, such as 50 mm wide strip, can shift sideways or collapse as they unwind. Large bakelite side plates support the narrow wraps and keep them aligned while the coil pays off. The two decoilers shown are built for 50 mm wide strip.

Strip widthNarrow strip, for example 50 mm
SendStrip width, coil O.D., I.D. and weight

Two narrow strip decoilers with large bakelite side plates for 50 mm wide strip — Two decoilers with large bakelite side plates for 50 mm wide strip.

Large Coils and Non-Contact Loop Control

custom decoiler for large inner diameter coil based on customer coil data

large coil ID customized decoiler workshop view

Large Coil I.D. / O.D. Customization

For coils with an unusually large inner or outer diameter, the mandrel arms, backplate and pay-off structure can be engineered from the customer's actual coil data instead of forcing the coil into a standard mandrel range. Please provide the coil I.D., coil O.D., width, weight, material, and loading method for engineering review.

Best forNon-standard large-I.D. or large-O.D. coils
ConfirmI.D., O.D., width, weight, material, and loading method

Customer-specific decoiler with long expansion arms and a large backplate. Final dimensions are confirmed from the actual coil drawing and coil data.

laser loop sensor for higher-speed surface-sensitive coil pay-off

Non-Contact Laser Loop Control

A laser distance sensor monitors material-loop height without touching the strip and sends a continuous signal to the powered decoiler drive. The decoiler accelerates or decelerates with downstream demand instead of relying only on start-stop control. This supports smoother active pay-off in lines with changing or higher downstream speed and reduces contact-related marking risk on surface-sensitive material.

Best forSurface-sensitive strip and lines with changing downstream speed
ControlLaser loop sensing with VFD or drive speed adjustment

Final line speed depends on coil data, motor and drive selection, transmission design, and downstream equipment.

Other Options

Film Peeling Device

For surface-protected coil material, a film peeling device can remove protective film during feeding while keeping the coil support and pay-off process controlled.

Recoiling Support

Some layouts require pay-off and re-coiling or controlled rewinding. The structure and control method should be confirmed with strip tension, coil direction, and line speed.

Comparison

Powered vs Non-Powered Decoilers

Both powered and non-powered decoilers support coil material, but they behave differently in the production line. The main difference is whether the decoiler actively drives the coil or relies on the downstream machine to pull the strip.

Selection Point	Powered Decoiler	Non-Powered Decoiler
Drive Method	Motor drives the mandrel for controlled coil pay-off.	Downstream machine pulls the strip and rotates the coil.
Typical Use	Stamping press feeding, coil feeding line, shearing line, cut-to-length line, and higher stability applications.	Light coil feeding, simple pull-off applications, and compact layouts.
Material Suitability	Better for thin, soft, surface-sensitive or heavier coil material.	Better for stronger strip material where pulling tension is acceptable.
Line Control	Can work with loop control, VFD speed adjustment and safety accessories.	Depends more on the pulling capacity and control of the downstream machine.
Recommendation	Recommended for most standard coil decoiler machine projects that need stable pay-off.	Use after confirming coil weight, material strength, line speed, and feeder pulling capacity.

For single, press-arm, large-O.D., double-head and 2-in-1 non-powered layouts, see the non-powered manual decoiler page.

Recent project references

Customized Decoiler Project Examples

These project photos show how standard MT decoilers can be adjusted with hydraulic expansion, VFD speed control, pressing arms, loading cars, and special coil handling devices according to coil data and production layout.

customized decoiler for 800mm width 8 to 12mm thickness coil material

USA: 800 mm (31.5 in) WidthNon-standard decoiler for 8-12 mm (0.315-0.472 in) material thickness and wider coil handling.

customized non-standard decoiler project for special coil handling layout

Finland: Customized Non-Standard DecoilerProject-built decoiler for special coil size and line layout requirements.

coil decoiler for cut-to-length line project

Italy: Cut-to-Length LineDecoiler selected to support strip pay-off before a cut-to-length process.

MT-500 2 ton decoiler with hydraulic expansion and VFD speed control

Spain: MT-500, 2 Ton (4,400 lb)Hydraulic expansion and VFD speed control for smoother coil setup and pay-off.

MT-500 2 ton decoiler with pressing arm and VFD speed control

Germany: MT-500 With Pressing Arm2 ton (4,400 lb), 500 mm (19.7 in) width configuration with VFD speed control and coil layer control.

MT-1300 5 ton decoiler with pressing arm hydraulic expansion and loading car

Mexico: MT-1300, 5 Ton (11,000 lb)Hydraulic expansion, pressing arm, support device, VFD control, and loading car.

Applications

Applications of Coil Decoiler Machines

A coil decoiler machine can work before different metal strip processes when coil data, material behavior, and line speed are within the selected model range.

coil decoiler for controlled recoiling and rewinding application

Recoiling Coil Material

For rewinding or controlled recoiling, confirm strip tension, line speed, coil direction, and whether the decoiler needs additional control devices.

Automotive Parts Stamping

Automotive part stamping lines often require stable coil support, controlled feeding rhythm, and reliable coordination with downstream press equipment.

Construction Hardware

For brackets, fittings, and building hardware, the decoiler is selected according to coil width, strip thickness, coil weight, and production speed.

coil decoiler feeding line for copper strip terminal stamping

Precision Terminals and Hardware Parts

For copper strip and precision terminal stamping, the decoiler must release material smoothly before the straightener, feeder, and progressive stamping press.

High-Speed Lamination Stamping

High-speed lamination stamping lines need coordinated decoiling, loop control, and feeding to keep material supply stable during continuous production.

coil decoiler for zig-zag circle blanking and cutting line

Zig-Zag Blanking

For circle blanking and material-saving layouts, the decoiler supports stable strip release before the zig-zag feeding and cutting process.

Double Head DecoilerFor continuous coil changeover. Horizontal Flat DecoilerFor selected thin or narrow strips. Customized Decoiler ExamplesFor non-standard coil handling layouts.

Photo gallery

Coil Decoiler Machine Photo Gallery

The following workshop and project photos show typical coil decoiler machine structures, standard MT decoiler configurations, and special line configurations without repeating the main application images above.

MT-200 decoiler machine workshop photo for standard coil support — MT-200 decoiler machine for standard coil support.

decoiler arrangement for continuous coil changeover preparation — Decoiler arrangement for continuous coil changeover preparation.

decoiler project for larger coil loads and heavier loading conditions — Project reference for larger coil load handling.

decoiler with film peeling device for protected coil material handling — Decoiler with film peeling device for protected coil material.

Price & delivery

Decoiler Machine for Sale: Price, Lead Time and Export

Looking for a sheet metal decoiler for sale, or a steel coil decoiler for heavier coils? HENLI decoilers for sale are supplied factory-direct from Dongguan, China. The same machine is also searched as an uncoiler machine, steel coil uncoiler or metal coil uncoiler; whichever name you use, every decoiler or uncoiler for sale is quoted from your coil data. The price of a decoiler machine is set by the width class (MT-200 to MT-800), the basic or reinforced load and the configuration: the VFD control box is included on export machines, while a pressing arm, hydraulic expansion, disc brake, coil loading car or Delta VFD cabinet are quoted as options. The decoiler machine price guide explains how each factor affects the quotation.

Factory-directDongguan, Guangdong; building coil feeding equipment since 2003.

7–10 daysTypical build time for standard machines after the configuration is confirmed; non-standard builds usually 15 days or more.

CE certifiedDecoilers are supplied with CE certification.

Export packingWooden cases, with installation guidance after delivery.

Quotation checklist

Send Your Coil Data for Decoiler Selection

For accurate model selection and quotation, please provide the actual coil and line data. This helps us decide whether a standard motorized coil decoiler, non-powered decoiler, manual stock reel, hydraulic expansion option, or customized configuration is more suitable.

1Coil data: material type, maximum coil weight, coil width, material thickness, coil I.D. and coil O.D.

2Line data: downstream machine type, required line speed, loading method, available workshop space, site voltage and frequency, and optional automation needs.

3Options: pressing arm, hydraulic expansion, disc brake, coil loading car, Delta VFD cabinet, film peeling, narrow-strip side plates, small or large I.D. mandrel, or custom layout.

The electrical configuration can be customized to the customer's local site voltage and frequency after project confirmation.

FAQ

Frequently Asked Questions

What else is a decoiler machine called?

The same machine is also called an uncoiler, a coil reel or motorized coil reel (common in North America), a pay-off reel, or a motorised or powered decoiler in the UK. Whatever the name, it is selected by coil weight, width, thickness, coil I.D./O.D. and line speed.

How do I choose a coil decoiler machine for my coil weight and width?

Start with the maximum coil weight, coil width, material thickness, coil I.D., coil O.D., line speed, and downstream machine. For lighter coils and simple layouts, a manual stock reel or non-powered decoiler may be enough. For stable feeding, higher coil weight, frequent production, or automated coil feeding, a motorized coil decoiler is usually the better choice.

Which decoiler model should I choose for 500kg, 800kg, 1 ton, 2 ton, 3 ton, 5 ton, or heavier custom coils?

For the basic standard structure, MT-200 is 500kg, MT-300 is 800kg, MT-400 is 1 ton, MT-500 and MT-600 are 2 ton, and MT-700 and MT-800 are 3 ton. If a buyer needs higher load on the same model width, the decoiler should be quoted as a reinforced or custom structure: MT-200 up to 1 ton, MT-300 up to 2 ton, MT-400 up to 3 ton, MT-500 up to 5 ton, MT-600 up to 6 ton, MT-700 up to 7 ton, and MT-800 up to 8 ton after confirming coil O.D., mandrel structure, expansion method, and loading method.

Which decoiler size do I need for a 2,000 lb coil?

A 2,000 lb coil is about 0.9 t (907 kg). Choose the width class from your coil width: MT-400 to MT-800 carry 1 ton (2,200 lb) or more on the basic build, and MT-200 or MT-300 can be reinforced up to 1 ton or 2 tons.

What information is needed for a coil decoiler machine quotation?

Please provide material type, maximum coil weight, coil width, material thickness, coil inner diameter, coil outer diameter, required line speed, downstream equipment, loading method, available workshop space, site voltage and frequency, and required options such as pressing arm, hydraulic expansion, disc brake, coil loading car or a Delta VFD cabinet. The electrical configuration can be customized to the customer's local site voltage and frequency after project confirmation.

When is hydraulic expansion recommended for a decoiler machine?

Hand-crank or hydraulic expansion is chosen by coil weight. Hydraulic expansion is useful when the coil is heavy, wide, changed frequently, or when hand-crank expansion becomes slow for the operator; it opens and closes the mandrel at the push of a button. For larger coil loads and heavy-duty configurations, see the heavy duty hydraulic decoiler page.

Which loop sensing options are available?

Contact sensing with a gantry sensor frame is standard: the decoiler stops when the loop touches the bar and runs again when the line lifts the loop. A photoelectric sensor or a laser tracking sensor can be supplied instead; laser tracking follows the loop height so the decoiler speeds up and slows down with the line.

When should a decoiler use a coil loading car?

A coil loading car is recommended when coil loading is frequent, the coil is heavy, crane access is limited, or the operator needs a safer loading method. It helps align the coil with the decoiler mandrel and reduce the risk of impact damage during loading.

When should I choose a powered decoiler instead of a non-powered decoiler?

Choose a powered decoiler when the coil is heavier, the line needs more stable strip pay-off, or the downstream equipment requires better coordination. A non-powered decoiler can be used when the coil is lighter and the downstream machine has enough pulling capacity.

Can one decoiler work with a stamping press, shearing line, or cut-to-length line?

Yes. A standard coil decoiler can work before stamping presses, straighteners, NC servo feeders, shearing machines, compact cut-to-length lines, and roll forming lines when the coil weight, width, thickness, and line speed are within the selected model range.

How is a decoiler for sale priced?

The price depends on the width class (MT-200 to MT-800), whether the basic or reinforced load is needed, and the configuration. The VFD control box is included on export machines; a pressing arm, hydraulic expansion, disc brake, coil loading car or Delta VFD cabinet are quoted as options. See the decoiler machine price guide for details.

Is a VFD control box standard on HENLI decoilers?

Yes. Motorized decoilers for overseas customers are supplied with a VFD control box (compact inverter) for soft start and adjustable pay-off speed. A Delta VFD control cabinet can be specified as an upgrade at extra cost.

When does a decoiler need a disc brake?

When the coil is heavy enough to keep turning after the drive stops, for example the 800 mm decoiler for 5-ton coils shown on this page. A disc brake on the mandrel shaft helps stop the coil with less overrun. Brake size is confirmed from coil weight, coil diameter and line speed.

Can a decoiler handle narrow strip or a small coil I.D.?

Yes, as a custom build. Narrow strip, such as 50 mm wide coils, can be supported with large bakelite side plates, and coils with a bore smaller than the standard 450–530 mm range can use a custom small-I.D. mandrel. Send the coil I.D., O.D., width and weight.

Not sure how much your coil weighs?

Enter the material, outer diameter, inner diameter and width to estimate coil weight and PIW. Use the result as the first load-class check, then send the complete coil and line data to HENLI for a custom decoiler selection.

Calculate Coil Weight & PIW →