High-speed thin-strip leveling

U-Type High-Speed Leveler for Transformer & Motor Cores

Straighten thin coil strip and buffer it in a U-shaped loop before high-speed feeding. The HENLI JMU series supports EI/UI laminations, transformer cores, motor cores and other thin-strip stamping applications.

JMU-200 / JMU-300 / JMU-400U-shaped strip bufferPhotoelectric loop sensingMetric / Imperial specifications

Get a Free Quote Check Specifications

U-Type high-speed leveler machine overview with U-shaped material loop and control panel — U-Type leveler with a visible U-shaped material path and operator controls. The final setup is matched to the strip and production line.

0.1–1.0 mmListed thickness range for the JMU models.

200 / 300 / 400 mmMaximum strip width by JMU model.

45 m/minListed strip feeding speed; match the feeding cycle.

15 Leveling RollersØ32 mm, 7 upper / 8 lower; plus 2 pinch rolls.

Why the U-loop matters

A Material Reserve Between Leveling and Intermittent Feeding

After the strip is leveled, it forms a U-shaped loop before downstream feeding. The buffer helps accommodate changes in strip demand as the feeder advances material through repeated press cycles.

Front view of U-shaped buffer loop on U-Type high-speed leveler

Strip buffering

U-Shaped Buffer Path

The pictured unit is marked TUS-400. Its U-shaped path illustrates strip buffering between leveling and feeding; check the setup for the selected material.

Multiple U-Type leveler units showing U-loop body structure in workshop

Machine structure

Machine Frame and Loop Arrangement

The workshop units show the U-loop body and leveling section. Review the footprint, working height and access when planning an installation.

Leveling, loop buffering and feed-pitch control serve different purposes. Select the leveler for the material and required result, then match the feeder and loop setup to the press cycle.

Roller setup and loop sensing

Prepare the Strip and Coordinate Its Supply

Required flatness, material condition and the downstream process guide the setup. The loop control coordinates supply during normal production.

Roller arrangement

15 Leveling Rollers

The JMU table lists Ø32 mm rollers with 7 upper and 8 lower. The 2 pinch rolls provide a separate adjustable-pressure feeding function.

Material setup

Four-Point Vertical Adjustment

Set roller engagement and pinch pressure for the actual strip. Check the resulting flatness and surface condition when establishing the working setup.

Loop feedback

Photoelectric Sensing and Speed Control

Photoelectric sensing monitors the loop condition, with frequency-controlled speed regulation. Confirm the control modes and interfaces for the supplied JMU configuration.

Line integration

From Coil Pay-Off to High-Speed Stamping

The U-Type leveler normally works between the decoiler and the downstream feeder. Match the full equipment set to the coil, die, feed pitch and press speed.

01 · Coil pay-off

Support and Unwind

Select coil handling for the weight, I.D./O.D. and changeover requirements. Review double-head decoilers.

02 · Leveling and loop

Prepare and Buffer

Straighten the strip and maintain a suitable U-loop reserve before feeding.

03 · High-speed feeding

Control the Feed Pitch

Match the feeding interval and die pitch. Review high-speed gear feeders.

04 · Press operation

Coordinate the Cycle

Confirm the press rhythm, material demand, working height and control interfaces for the installation.

U-Type leveler line overview with coil decoiler and high-speed press

Production line

Coil Pay-Off and Press-Line Overview

The installation shows the relationship between coil handling, U-Type leveling and high-speed stamping equipment.

Workshop line integration with double-head decoilers, U-Type levelers and high-speed presses

Line equipment set

Double-Head Decoiler and Leveler Arrangement

The workshop line groups coil handling and leveling equipment ahead of the presses. Plan equipment spacing and operator access for the chosen set.

Standard model selection

JMU-200, JMU-300 and JMU-400 Specifications

Use the actual width, thickness, material properties and required output to select the model. Confirm the minimum usable width, operating speed and line arrangement for the application.

Specification	JMU-200	JMU-300	JMU-400
Maximum strip width	200 mm	300 mm	400 mm
Material thickness	0.1–1.0 mm	0.1–1.0 mm	0.1–1.0 mm
Listed feeding speed	45 m/min	45 m/min	45 m/min
Pinch rolls	2 / adjustable pressure	2 / adjustable pressure	2 / adjustable pressure
Motor power	1 HP	1 HP	2 HP
Leveling rollers	Ø32 mm, 7 upper / 8 lower	Ø32 mm, 7 upper / 8 lower	Ø32 mm, 7 upper / 8 lower
Adjustment method	4-point vertical	4-point vertical	4-point vertical

On a small screen, scroll the table sideways to compare all three models. The table covers JMU-200, JMU-300 and JMU-400. Photographs illustrate machine and line layouts; working capacity and controls follow the specification of the quoted machine.

45 m/min is strip speed, not press SPM. Feed pitch and the available feeding interval determine how the strip is drawn through each press cycle. Review them together with the loop demand and required output.

Thin-strip applications

Transformer Laminations, Motor Cores and Similar Parts

Assess the electrical-steel or other strip grade, required flatness, surface condition and feeding cycle for the part you produce.

EI / UI laminations

Transformer-Core Stamping

Prepare thin strip for repeat feeding and blanking of EI/UI lamination shapes.

Motor laminations

Motor-Core Components

Coordinate the incoming strip condition with the high-speed feeder and lamination die.

Reactor sheets

Cutting and Blanking

Review the strip preparation and required result before cutting or stamping reactor components.

Other thin-strip parts

Suitable Thin-Strip Blanking

Confirm the material and selected JMU working range for other thin-strip stamping applications.

Workshop and installation

Plan the Equipment Around Your Existing Line

Check coil handling, machine position, transfer height and access for setup. A line drawing or site photographs help define the required equipment arrangement.

Workshop setup with decoiler, roller table and U-Type high-speed leveler

Workshop layout

Decoiler, Transfer Area and Leveler

This workshop setup shows coil pay-off, a transfer table and the U-Type leveler. Check strip support and equipment spacing against the actual installation.

Multiple U-Type high-speed leveler machines in Henli workshop

Equipment preparation

U-Type Units in the Workshop

The machine group shows the leveler bodies prepared for line projects. Specify the model and installation requirements for each production line.

Equipment selection

Compare the Strip Path, Process and Feeding Task

U-Type and S-Type are different thin-strip layouts. Compare their actual setup, available space and required result; the layout name alone does not establish better flatness or a particular storage length.

U-shaped buffer

JMU U-Type Leveler

Review this route when thin-strip leveling and a U-loop buffer need to be integrated ahead of high-speed feeding.

Alternative loop layout

S-Type High-Speed Leveler

Compare the S-shaped material route and line arrangement with the S-Type leveler. Confirm usable storage and output for the selected setup.

Required leveling result

Precision Sheet & Coil Leveler

For material conditions, individual sheets or flat parts that call for precision leveling, review the appropriate SSL configuration.

Feeding equipment

Gear Feeder or NC Servo Feeder

Choose a gear feeder or NC servo feeder for the feed pitch, speed and press interface. A feeder controls advancement; the need for leveling is assessed separately.

EI / UI Lamination LineCoil handling, U-Type leveling and feeding layout.Motor Lamination LineComplete high-speed press-line configuration.Precision Leveler SelectionMaterial and output requirements for leveling.

For an existing feeding line, read when coil feeding requires a leveler.

Factory video

U-Type Leveler Operation and Factory Run

Review the machine arrangement and material loop in operation, then compare them with your strip and press requirements.

U-Type leveler operation video thumbnail — U-Type leveler operation reference. Watch on YouTube.

Quotation checklist

Send Your Strip and Press Data for JMU Selection

HENLI reviews the material, leveler, decoiler, feeder and press as a complete production setup.

1Material and coil: grade, thickness, width, coil weight and I.D./O.D.; required flatness and surface condition.

2Press and die: press model, strokes per minute, feed pitch, part or die details and feeder type.

3Installation: available space, working height, coil change requirements, voltage and a line drawing or site photographs.

For a wider comparison, browse the coil leveler product range or the EI/UI lamination line.

FAQ

Frequently Asked Questions

What is a U-Type high-speed leveler used for?

It straightens thin coil strip and provides a U-shaped material buffer before downstream feeding, stamping, cutting or blanking. Typical applications include EI/UI transformer laminations, motor-core components, reactor sheets and other suitable thin-strip parts.

Why does the material pass through a U-shaped loop?

After leveling, the strip forms a U-shaped buffer before the feeder. This reserve of material helps accommodate the difference between strip supply and intermittent press feeding. The loop position, usable storage and machine setup are matched to the material and feeding cycle.

How does the loop control work?

Photoelectric sensing monitors the loop condition, and frequency-controlled speed regulation coordinates material supply during normal production. The exact controller, operating modes and interfaces are confirmed with the supplied JMU configuration.

How do I choose JMU-200, JMU-300 or JMU-400?

The listed maximum strip widths are 200, 300 and 400 mm, with motor powers of 1, 1 and 2 HP respectively. The table lists 0.1–1.0 mm thickness and 45 m/min feeding speed for all three. Confirm the actual width–thickness combination, material properties, required flatness and feeding cycle. Minimum usable strip width is checked for the application.

Is 45 m/min the press speed?

No. It is the listed strip feeding speed for the JMU models. Press speed is measured in strokes per minute. Feed pitch, the available feeding interval and loop demand must also be considered when matching the leveler, feeder and press.

How should I compare U-Type and S-Type levelers?

Compare the actual material, required result, strip path, feeding cycle and available installation space. Both are high-speed thin-strip layouts. Their names alone do not establish a flatness advantage or a particular usable storage length; confirm those requirements for the selected configuration.

Can the U-Type work with a double-head decoiler and gear feeder?

Yes. A suitable line can combine a double-head decoiler, U-Type leveler, high-precision gear feeder and high-speed press. Match coil handling, feed pitch, working height, line speed and control interfaces to the material, die and production requirements.

What information is needed for a quotation?

Provide material grade and condition, strip width and thickness, coil weight and inner/outer diameter, required flatness and surface condition, press model and speed, feed pitch, die or part details, feeder type and the available line layout. Include the working height, voltage and installation photographs where available.