Compact coil preparation for stamping

UL 2-in-1 Decoiler Straightener

Combine coil decoiling and straightening on one base to reduce floor space beside the press. Buyers also call it a punch decoiler straightener or an all-in-one uncoiling straightener. Select standard UL for 0.35–2.2 mm material or reinforced UL-A for the 0.35–3.2 mm range, with width and thickness matched to the job.

200–600 mm model widths500–3,000 kg coil loadsUL / reinforced UL-A

Request a UL Quote Check Specifications

Machine Options Installation Photos Selection FAQ

UL combined decoiler straightener with coil mandrel, hold-down arm, straightening head and operator controls — Coil support, straightening head and local controls on one machine base. Accessories are selected for the ordered configuration.

2 functions · 1 baseDecoiling and straightening in a compact layout.

UL · 0.35–2.2 mmStandard range for general coil-fed stamping.

UL-A · 0.35–3.2 mmReinforced range with higher listed motor power.

15 m/minListed line speed; match supply to the feeder and press.

Why choose a 2-in-1 machine?

Prepare Coil Strip in Less Floor Space

UL brings the coil reel and straightening head together. It is a practical arrangement for general hardware and component stamping where the loading area and press-side space need careful planning.

01 · UnwindThe mandrel supports the coil as strip is paid off.

02 · StraightenThe roller head reduces coil set before feeding.

03 · Buffer + FeedAn outlet loop supplies a separate NC servo feeder.

04 · StampThe feeder delivers the required pitch to the press.

UL decoiler straightener on a shared frame in the workshop

Shared machine base

Bring the Reel and Straightener Together

The integrated structure reduces the need for separate machine positions. Keep clear access to the mandrel, straightening head and electrical cabinet when arranging the line.

Overall UL machine view showing coil reel and straightening head

Installation planning

Allow Room for Loading and Access

Check the coil-loading direction, operator side and outlet strip path before ordering. The machine footprint is only one part of the complete press-line layout.

Match material supply to the stamping cycle. The outlet loop buffers the difference between continuous material preparation and intermittent press feeding. Feed length and press coordination are handled by the selected downstream feeder.

Model range and capacity

Select UL or Reinforced UL-A

Start with material grade, width and thickness, then check coil weight and line demand. Five model sizes cover nominal widths of 200, 300, 400, 500 and 600 mm.

Standard UL

0.35–2.2 mm Material

A general straightening range for coil-fed press work. Choose the model size using both the coil load and the width permitted at your material thickness.

Reinforced UL-A

0.35–3.2 mm Material

The reinforced version extends the thickness range and uses the higher motor ratings in the table. Maximum width reduces as material thickness increases.

UL and UL-A model specifications
Specification	200 size	300 size	400 size	500 size	600 size
Standard model	UL-200	UL-300	UL-400	UL-500	UL-600
Reinforced model	UL-A-200	UL-A-300	UL-A-400	UL-A-500	UL-A-600
Maximum strip width	200 mm	300 mm	400 mm	500 mm	600 mm
UL thickness range	0.35–2.2 mm	0.35–2.2 mm	0.35–2.2 mm	0.35–2.2 mm	0.35–2.2 mm
UL-A thickness range	0.35–3.2 mm	0.35–3.2 mm	0.35–3.2 mm	0.35–3.2 mm	0.35–3.2 mm
Coil load	500 kg	1,000 kg	2,000 kg	3,000 kg	3,000 kg
Listed line speed	15 m/min	15 m/min	15 m/min	15 m/min	15 m/min
UL motor power	1 HP	2 HP	2 HP	3 HP	3 HP
UL-A motor power	2 HP	3 HP	3 HP	5 HP	5 HP

Motor ratings are shown separately for standard UL and reinforced UL-A. Metric is the source unit; imperial dimensions, loads and speeds are rounded conversions. Confirm coil I.D./O.D., electrical supply and the complete build specification with the order.

Maximum Strip Width by Material Thickness

Read down from the required thickness to find the permitted width for each model size. The reference below applies to material with yield strength ≤235 N/mm², such as Q235 mild steel.

Maximum strip width by thickness; reinforced UL-A required above 2.2 mm
UL / UL-A Model size	0.35 mm	0.8 mm	1.2 mm	1.5 mm	2 mm	2.5 mm UL-A required	2.8 mm UL-A required	3.2 mm UL-A required
200 size	200 mm	200 mm	200 mm	180 mm	120 mm	100 mm	80 mm	60 mm
300 size	300 mm	300 mm	300 mm	280 mm	240 mm	180 mm	120 mm	85 mm
400 size	400 mm	400 mm	400 mm	360 mm	280 mm	220 mm	180 mm	120 mm
500 size	500 mm	500 mm	500 mm	460 mm	380 mm	280 mm	220 mm	150 mm
600 size	600 mm	600 mm	600 mm	570 mm	460 mm	330 mm	270 mm	200 mm

The 2.5, 2.8 and 3.2 mm columns require reinforced UL-A selection. For example, the 600 size is listed for 600 mm width at 1.2 mm thickness, but 200 mm width at 3.2 mm thickness. Higher-strength material needs a separate capacity review.

The table is a UL / UL-A family selection reference. Use actual material strength, incoming coil condition, target flatness and the final machine configuration to confirm the working capacity.

Straightening setup and access

Adjust the Rollers, Check the Strip

Straightening performance depends on the material and the roller setting. Review the adjustment mechanism and access required for inspection, cleaning and material changes.

Straightening head

Prepare Strip for Downstream Feeding

The roller head reduces incoming coil set before the strip reaches the feeder. Match the setting to the actual material thickness, strength and coil condition.

Silver handwheels and spring-loaded adjusters on the UL head

Roller setting

Fine Adjustment at the Straightening Head

Adjust the straightening setting in controlled steps and inspect the outgoing material. Record useful settings with the grade, thickness and width for repeat production.

UL adjustment housing with two handwheels

Adjustment option

Worm-Gear Adjustment

The handwheel-operated adjustment arrangement can be selected for easier roller setting. Review the mechanism when setup effort and frequent material changes are part of the production routine.

UL straightener head opened to expose upper and lower roller banks

Head-access option

Flip-Top Head for Roller Cleaning

An openable head provides access to inspect and clean the material contact surfaces. This is useful for visible-surface strip where debris on the rollers can leave marks.

Set up for the actual coil. Inspect the straightened sample against the agreed flatness and surface requirements. Stop and isolate the machine before opening the head or accessing the roller area, following the supplied maintenance procedure.

Coil handling and controls

Choose Options for Your Production Routine

Select the coil restraint, expansion, speed control and sensing arrangement around the material, changeover frequency and press-line layout. Photos show configuration examples.

Orange hold-down arm with contact roller, pneumatic cylinder and coil mandrel

Coil restraint option

Pneumatic Press Arm

The arm helps hold the outer coil wraps under control during handling, threading and pay-off. Review this option when material spring-back or frequent coil changes make restraint especially useful.

UL control panel with speed knob, forward/reverse buttons and operating selector

Speed-control option

Adjust Material Delivery Speed

The operator panel provides a local speed setting and machine controls. VFD speed control is available to match delivery to line demand, while a separate feeder controls the feed pitch.

Closed UL electrical cabinet with front-panel controls and external cables

Electrical configuration

Plan Service and Operator Access

The cabinet and local controls need an accessible operating position. Confirm site power, the control arrangement and required interfaces for the selected machine and feeder.

Green and yellow UL machine with mandrel, raised press arm and blue control cabinet

Configuration example

Review the Complete Machine Layout

This overall machine view shows the reel, press arm, straightening head and cabinet. Check coil dimensions and weight together with arm movement, loading direction and operator access.

Expansion option

Hydraulic Coil Expansion

Hydraulic expansion reduces manual effort when gripping and releasing the coil bore. Select this handling option according to coil dimensions, weight and changeover frequency.

Material detection

Review the Loop-Sensing Arrangement

Material sensing regulates supply as the outlet loop changes with downstream demand. Photoelectric sensing can be reviewed when non-contact detection suits the strip. Confirm the method and position for the selected UL build.

UL in production lines

Plan the Machine Around the Press

The installation photographs show different coil, strip-path and press-side arrangements. Use them to review access and line integration, then confirm the layout with the actual workshop dimensions.

UL combined decoiler straightener in a production workshop

Press-line installation

Keep the Material Path Clear

Arrange the machine so the strip can travel from the coil through the straightener and into the downstream buffer without interference from loading or operator access.

Coil preparation machine positioned near production equipment

Downstream connection

Allow an Outlet Buffer

The outlet loop supplies material while the feeder follows the stamping cycle. Review loop clearance and material support together with press speed and feed pitch.

UL installation showing coil handling and surrounding workshop space

Workshop arrangement

Coordinate Coil Changes and Production

Leave access for coil loading and removal while keeping the reel, straightener and feeder aligned with the required strip travel.

Integrated decoiler straightener beside production-line equipment

Compact line layout

Check the Complete Working Area

Include control access and maintenance clearance in the floor plan. The integrated base helps arrange coil preparation close to the downstream process.

General hardware

Stamped and Formed Components

Prepare strip for brackets, clips and similar coil-fed components within the selected width, thickness and strength combination.

Appliance and enclosures

Component Production

Check part surface requirements, coil specifications and available press-side space before selecting the straightening and handling options.

Automotive hardware

Material-Based Selection

Use actual material grade and strength when selecting equipment for automotive components. Match the feeder and press arrangement to the production demand.

Material and surface requirements

Prepare for Consistent Strip Handling

Visible-surface parts need careful roller cleanliness, strip support and setup. Material name alone does not establish capacity: strength, thickness and width must be checked together.

UL machine and coil strip in a production installation

Strip handling

Support the Coil-to-Straightener Path

Check strip guidance and contact surfaces for the selected coil and surface requirement. Review openable-head access when cleaning needs are frequent.

Decoiler straightener installation with a loaded metal coil

Material review

Confirm the Required Surface Result

For stainless steel, aluminum or copper, provide the grade and representative material. Review the finished surface and flatness requirement alongside the machine capacity.

UL machine installation showing strip preparation near a press

Production setup

Match Supply to the Feeder

Confirm the feeder, feed pitch and press demand so the straightening speed and buffer arrangement can be reviewed as part of the complete line.

UL coil handling machine in a press workshop

Operator access

Keep Setup and Inspection Accessible

Locate the controls where operators can manage setup and observe strip travel. Check working access around the reel, straightening head and downstream equipment.

Choosing between UL and PUL: UL serves general coil straightening within its published material capacity. For a thinner precision-strip application, review the PUL precision 2-in-1 decoiler leveler and its roller configurations.

Machine builds and delivery

Review the Supplied Configuration

Machine appearance and accessories vary with the order. These build and delivery photographs provide additional views of the integrated frame, coil support and straightening head.

Two UL decoiler straightener machines in a factory yard

Machine builds

Paired Units at the Factory

Review the ordered model and selected accessories against the final machine specification, including coil capacity, adjustment, expansion and controls.

UL-200 machine views

Check the Operating-Side Arrangement

The machine views show the relationship between the reel, straightening head and controls. Confirm the layout for the intended loading and feeding direction.

Wrapped machines loaded on trucks in the factory yard — Wrapped machinery loaded for transport at the factory.

Before delivery

Confirm the Machine and Line Requirements

Review the selected UL or UL-A model, coil dimensions and weight, site power, accessories and material direction. Include the downstream feeder and any required control interface in the order details.

Use the final configuration and layout drawing to plan unloading, installation, coil loading and maintenance access.

Manufacturer

Built in Dongguan, China

HENLI builds UL and UL-A decoiler straighteners in its own factory in Dongguan, Guangdong, China (Dongguan Xinxiang Machinery Equipment Co., Ltd., founded 2003) and has exported coil feeding equipment for more than 20 years. Standard units are usually ready 7–10 days after the configuration is confirmed. A CE certificate is on file for the 2-in-1 decoiler straightener range, machines ship in export wooden crates, and quotations come directly from the factory.

See the factory, CE records and export packing

Material and line review

Find the Right UL Configuration for Your Coil

Send the coil specifications and a workshop layout. HENLI can review the model size, reinforced version and options for your stamping line.

Request a UL Quote View NC Servo Feeders

What to Include

1Material: grade, yield strength, thickness and width ranges, coil weight and inside/outside diameters.

2Required result: incoming coil condition, target flatness and surface acceptance.

3Production line: feeder, feed pitch, press speed, available space, loading direction and site power.

4Options: press arm, expansion method, VFD, sensing, adjustment and openable-head access.

FAQ

UL Model Selection Questions

What does the UL 2-in-1 machine combine?

UL combines coil decoiling and roller straightening on one machine base. In a stamping line, the prepared strip normally passes through an outlet buffer to a separate feeder, which controls feed length and coordinates delivery to the press.

What is the difference between UL and UL-A?

Standard UL has a listed material range of 0.35–2.2 mm. Reinforced UL-A extends the family range to 0.35–3.2 mm and has the higher motor ratings shown in the model table. Both must be selected against the actual width, thickness and material strength.

Can a 600 mm model straighten 600 mm wide material at 3.2 mm thickness?

The maximum width and maximum thickness are not simultaneous capacities. In the published family reference, the 600 size is limited to 200 mm width at 3.2 mm thickness, with reinforced UL-A selection and yield strength no greater than 235 N/mm². Confirm the actual material before ordering.

How much space can the integrated machine save?

Combining the decoiler and straightener reduces the installation positions required for those two functions. The final footprint also includes coil loading access, the outlet loop, the feeder and maintenance clearance. Send the workshop layout for a line-specific arrangement.

Can UL process stainless steel, aluminum or copper strip?

These materials can be reviewed for a suitable configuration using their grade, strength, thickness, width and surface requirements. The published width-thickness table is based on yield strength up to 235 N/mm² and must not be assumed to cover every grade. Representative material trials help confirm the required result.

When are hydraulic expansion and a pneumatic press arm useful?

Hydraulic expansion reduces manual effort when gripping and releasing the coil bore. A pneumatic press arm helps restrain the outer wraps during coil handling and pay-off. Select them according to coil weight, dimensions, material spring-back and changeover frequency.

Does VFD speed control replace an NC servo feeder?

VFD control adjusts material delivery speed. The separate NC servo feeder performs feed-length control and press-related feeding functions. Confirm the feeder and buffer arrangement against feed pitch, press speed and average strip demand.

Why choose a flip-top straightener head?

An openable head gives access to the rollers for cleaning and inspection. This is useful when accumulated debris could mark the strip, particularly on visible-surface parts. Confirm the head-access option for the selected build and follow the supplied maintenance procedure.

What should I send for a UL quotation?

Send material grade and yield strength, thickness and width ranges, coil weight, inside and outside diameters, target flatness and surface requirements, feed pitch and press speed, loading direction, available space and site power. Include any preferred control, expansion, press-arm or head-access options.

Where are UL decoiler straighteners made?

HENLI builds UL and UL-A decoiler straighteners, also called punch decoiler straighteners or all-in-one uncoiling straighteners, in its own factory in Dongguan, Guangdong, China. Standard units are usually ready 7–10 days after the configuration is confirmed; non-standard large projects usually take 15 days or more.

2-in-1 Leveler RangeCompare combined decoiling and leveling machines.PUL Precision 2-in-1 LevelerReview precision thin-strip roller configurations.NC Servo FeederSelect downstream feed-length control for the press.