SSL Series precision leveler

Precision Sheet Metal Leveler & Coil Leveling Machine for 0.03-6.0mm Materials

Henli precision levelers cover 0.03-6.0mm through SSL configurations and a dedicated ultra-precision model for 0.03-0.3mm strip. Select by thickness, width, material grade, surface requirements, and coil or sheet handling.

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How the precision leveler works 45-second demonstration

Illustrative 3D demonstration of an SSL precision leveler with Ø32 rolls.

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Fifteen Ø32 rolls, set at four points. An SSL precision leveler with Ø32mm work rolls, 7 upper and 8 lower, for 0.3-1.5mm material. Shown on a 200mm-wide machine with entry and exit trays.

Exit at thickness. Entry a little deeper. Set both gaps to the material thickness, then lower the entry slightly. The entry rolls bend the material; the exit rolls guide it out flat.

Bowed plates in, flat plates out. A plate cut from coil rocks on a surface plate. Laid on the stainless entry tray and run forward, it leaves the leveler flat.

Open the head to clean the rolls. Aluminum leaves fine powder on the rolls. Open the upper roller bank, switch to MANU and REVERSE, and jog: the rolls turn outward while you wipe them.

Decoiler, leveler, servo feeder, press. For coil, guide rollers and side stop rollers replace the tray. The strip runs from the decoiler through the leveler into the NC servo feeder, with a loop on each side.

0.03-6.0mmPrecision leveler family range selected by roller diameter and structure.

Sheet / CoilFor cut sheet, coil strip, and press line leveling requirements.

Ø10-Ø54mmØ10mm for ultra-precision; Ø20-Ø54mm for SSL configurations.

CustomSurface protection, drive control, guide rollers, and line direction by project data.

Overview

Sheet Metal Leveler and Coil Leveling Machine Overview

Select an SSL precision sheet metal leveler for coil strip or cut sheets before stamping, shearing, etching, or assembly. Start with material thickness and the corresponding work roller diameter, then confirm material grade, width, surface requirements, and target flatness. Coil feeding and individual-sheet handling require different entry support and line controls, so include your production mode when requesting a quotation.

Ultra-thin material is included in the selection range. For 0.03-0.3mm strip, including 0.04mm material, see the dedicated Ø10mm 6-Hi ultra-precision leveler. Its specifications are separate from the SSL Ø20mm model table below. For 0.1-0.6mm material requiring rough plus fine leveling, see the dual-stage precision leveler. For coil set, edge wave, center buckle, and process selection, use the sheet metal leveler solution guide.

Sheet precision leveler front view for SSL series selection — General SSL precision sheet and coil leveler reference image for broad buyer selection.

Selection logic

Choose the Leveler by Material Data and Production Mode

Confirm thickness, width, material grade and strength, surface condition, flatness target, and whether the material is fed as coil strip or cut sheets. Use these details to select the roller configuration and line arrangement.

Confirm material.
Material type, thickness, width, yield strength if available, and surface sensitivity.

Select roller structure.
Match roller diameter, roller count, and backup support to the actual leveling force.

Check working mode.
Coil strip, cut sheet, stamped blank, etched sheet, or dual-use handling.

Match the line.
Decoiler, feeder, press, shearing line, cut-to-length line, or manual handling layout.

Family selection: the 0.03-6.0mm range includes SSL roller configurations and the dedicated ultra-precision model. Use the roller diameter and thickness guide to identify a starting configuration, then confirm the material and production requirements.

Family selection · 0.03-6.0mm

Match Material Thickness to Work Roller Diameter

Start with material thickness. Choose the dedicated Ø10mm ultra-precision model for ultra-thin strip, or an SSL configuration with Ø20mm to Ø54mm work rollers.

Work roller diameter	Reference thickness	Configuration
Ø10mm	0.03-0.3mm	6-Hi ultra-precision leveler
Ø20mm	0.1-0.6mm	SSL — view Ø20mm specifications
Ø32mm	0.3-1.5mm	SSL configuration
Ø40mm	0.3-2.0mm	SSL configuration
Ø48mm	0.3-3.2mm	SSL configuration
Ø54mm	0.5-6.0mm	SSL configuration

These are typical starting ranges for HENLI configurations. Final selection also considers material grade and strength, width, surface requirements, and target flatness. The 19-roller arrangement in the detailed table applies to the Ø20mm group; roller count and support layout are confirmed separately for the selected material and process.

Technical range

SSL Ø20mm Model Specifications

The detailed table below covers the SSL Ø20mm group for 0.1-0.6mm material. The family guide above shows the dedicated ultra-precision model and other SSL roller diameters.

SSL-1000-100mm0-3.94 inworking width example

SSL-2000-200mm0-7.87 inworking width example

SSL-3000-300mm0-11.81 inworking width example

SSL-4000-400mm0-15.75 inworking width example

Swipe the table sideways to compare SSL-100 to SSL-400.

Item	SSL-100	SSL-200	SSL-300	SSL-400
Material Width	0-100mm0-3.94 in	0-200mm0-7.87 in	0-300mm0-11.81 in	0-400mm0-15.75 in
Reference Thickness	0.1-0.6mm0.004-0.024 in	0.1-0.6mm0.004-0.024 in	0.1-0.6mm0.004-0.024 in	0.1-0.6mm0.004-0.024 in
Roller Arrangement	Ø20 x 19 rollers, 9 upper / 10 lowerØ0.79 in x 19 rollers, 9 upper / 10 lower
Leveling Speed	0-16m/min reference configuration0-52.5 ft/min reference configuration
Leveling Method	4-point floating adjustment
Working Mode	Coil strip, cut sheet, and press line leveling
Drive and Direction	VFD stepless synchronization control; left / right discharge direction

Roller diameter selection

Choose the Precision Roller Leveler by Thickness and Roller Diameter

The following machine details illustrate SSL roller options from Ø20mm to Ø54mm. Use the family thickness guide to select a starting diameter, then confirm material grade, width, and flatness requirements.

Precision leveler roller diameter selection for thinner sheet materials

Thin / precision

Ø20mm / Ø32mm Work Rollers

Typical thickness selection: Ø20mm for 0.1-0.6mm material and Ø32mm for 0.3-1.5mm material. Confirm the final setup against material grade, width, surface condition, and flatness requirements.

CheckThickness, surface sensitivity, width, yield strength
UseLight sheet, strip, coil leveler machine applications

Larger roller diameter precision leveler selection for thicker material

Stronger force

Ø40mm / Ø48mm / Ø54mm Work Rollers

Typical thickness selection: Ø40mm for 0.3-2.0mm, Ø48mm for 0.3-3.2mm, and Ø54mm for 0.5-6.0mm material. Material strength and width are checked when confirming the configuration.

CheckMaterial strength, width, flatness target
UseStamping blanks, wider sheet, heavier leveling needs

Sheet precision leveler detail view for buyer selection guide

Custom path

Custom Sheet Metal Leveling Machine

Selected when material strength, width, surface condition, line speed, or downstream process requires a non-standard leveling structure.

ConfirmCoil or sheet mode, guide structure, drive control
QuoteBased on real material and production data

Working mode

Coil Leveling Machine or Sheet Leveler

The same buyer may need a coil leveling machine before a press line, or a sheet leveler for cut sheets after shearing, laser cutting, punching, or etching. Working mode changes the entry guide, feeding control, operator handling, and quotation data.

Coil strip

Coil Strip Leveling for Press Feeding Lines

Choose coil strip mode when the precision leveler works with a decoiler, loop control, NC servo feeder, and stamping press. A coil-fed press line leveler must be checked together with synchronization, loop height, feeding pitch, and surface protection.

Cut sheet

Cut Sheet and Parts Leveling

Choose cut sheet mode when the process handles single sheets, blanks, etched parts, punched sheets, or laser-cut parts. Entry support, manual or automatic feeding, sheet size, and downstream flatness are important.

Engineering note

Why Thickness Alone Is Not Enough

Two materials with the same thickness may need different leveler configurations. Yield strength, material width, coil set, crossbow, residual stress, burr direction, and surface coating all affect how much leveling force and roller contact the machine must provide.

This is why Henli checks roller count, backup support, adjustment method, entry guide, synchronization control, and whether the material is fed continuously or handled as individual sheets.

Configuration details

Surface Requirement, Process Control, and Leveling Stability

Surface-sensitive material, frequent recipe changes, higher line speed, press feeding stability, and maintenance access can change the roller surface, guide structure, adjustment method, and synchronization control.

Roller Construction

Roller material, surface treatment, hardness, backup support, and grinding quality affect flatness stability and surface protection.

Circulating lubrication system for precision sheet and coil leveler transmission

Lubrication and Transmission

Automatic or timed lubrication can reduce maintenance risk in production lines that run continuously or change material frequently.

Protective entry guide rollers for sheet and coil leveling machine

Entry Guide Protection

Guide rollers and support design help reduce dragging, edge contact, lateral movement, and surface damage at the material entry point.

Worm gear adjustment system for heavy precision leveler gap control

Gap Control for Stronger Materials

For thicker or higher-strength stock, the adjustment structure must hold the leveling gap under greater material reaction force.

Four-point floating adjustment detail on precision leveler

4-Point Fine Adjustment

Visual dial references help operators record settings and repeat leveling recipes for different materials.

Dial indicator adjustment detail for precision sheet leveler

Adjustment Assembly Detail

Independent adjustment points help the leveler control roller contact and fine-tune the leveling gap.

Openable Upper Roller Bank

Openable structure supports roller cleaning and inspection when processing surface-sensitive metal or frequent material changes.

Precision leveler upper roller bank maintenance access

Maintenance Access Structure

The upper roller bank can be opened for access to internal rollers and guide areas during maintenance.

Stepless synchronization control for precision leveler line integration

VFD Speed Control

VFD control helps the leveler match feeder, press, shearing, or cut-to-length line rhythm.

VFD control detail for precision sheet and coil leveler synchronization

Line Synchronization Panel

Synchronization control is checked with the real feeding mode, line speed, and downstream process.

PU-coated roller option for sensitive sheet leveling

PU Roller Reference

PU-coated or surface-care roller options may be considered for polished, plated, aluminum, copper, or stainless steel material.

Flexible roller contact option for surface-sensitive material leveling

Surface-Care Roller Setup

Surface-sensitive setups are selected according to coating, scratch risk, flatness target, and handling method.

Buyer check

Before Final Selection

Send the real material thickness, width, surface condition, flatness target, line speed, feeding mode, and downstream process. These details decide whether the project should use the general SSL path or a more specific thin-strip or dual-stage model.

Model routing

Related Precision Leveler Models

Move from the general SSL precision sheet metal leveler page to a dedicated model page when the material range or process requirement is already clear.

0.03-0.3mm

6-Hi Thin Strip Precision Leveler

Choose this high-precision sheet metal leveler for thin strip, terminal strip, plated strip, copper strip, and surface-sensitive narrow strip applications.

View thin strip leveler

Precision leveler reference model for thin coil and sheet stock selection

0.1-0.6mm

Dual-Stage Precision Leveler

Choose this dual-stage sheet metal leveler when the process needs rough leveling plus fine leveling before high-speed stamping or precision coil feeding.

View dual-stage leveler

General SSL

Precision Sheet & Coil Leveler

Use the SSL selection path when the buyer needs to compare roller diameter, material thickness, working mode, and surface requirement before confirming structure.

Current selection page

Application fit

Applications for Sheet Metal Leveler and Coil Leveler Machines

These application images are grouped by production meaning so buyers can connect the photo evidence with the selection question instead of scanning an endless thumbnail gallery.

Cut-to-length line reference for sheet and coil leveling selection

Cut-to-Length Line LevelingFlatness correction before shearing, stacking, or downstream sheet processing.

Sheet leveling line layout reference with downstream cutting equipment

Sheet Leveling Line LayoutReference for sheet leveling and downstream cutting equipment layout.

Narrow strip precision leveler reference for related model selection

Narrow Strip and Terminal MaterialNarrow strip reference where surface condition and roller support should be reviewed.

Openable precision strip leveler reference for sensitive materials

Openable Precision Strip LevelerMaintenance and surface-care reference for sensitive strip handling.

High-flatness precision leveler reference image for model comparison

High-Flatness Model ReferenceReference image for broader model comparison and stronger material discussion.

Precision leveler roller bank reference for stronger material selection

Roller Bank and Leveling ForceRoller bank reference for higher leveling force or stronger material selection.

Surface-sensitive component leveling reference for precision sheet applications

Surface-Sensitive ComponentsReference for component materials where flatness and surface protection must be checked together.

Precision sheet leveling reference image for delicate component materials

Delicate Sheet MaterialReference image for delicate component materials and surface requirement review.

Stamping line reference using precision sheet and coil leveling equipment

Stamping Line IntegrationPress line reference for buyer discussion about coil strip leveling before stamping.

Press line equipment reference for coil strip leveling selection

Coil Strip Feeding and LevelingReference for coil strip feeding, leveling, and press line integration.

Quotation input

Send Material Data for Leveler Selection

A correct quotation depends on more than the machine name. Send the following data so Henli can select roller diameter, working width, adjustment structure, drive control, and line integration correctly.

Material data: material type, thickness range, width range, yield strength if available, coating, and scratch sensitivity.

Working mode: coil strip, cut sheet, or dual-use operation; coil ID/OD and coil weight if used with coil feeding equipment.

Line data: decoiler, feeder, press, shearing machine, cut-to-length system, manual handling, speed, and control requirements.

What Henli Checks Before Recommending a Model

Henli checks whether the buyer is trying to remove simple coil set, improve stamped part consistency, correct cut sheet distortion, protect a cosmetic surface, or prepare material for a high-speed feeding line.

For a faster quotation, send a short video or photos of the current material problem if available. Show whether the material bends upward, bends downward, twists, waves across the width, or scratches during feeding.

Request a Quote

Selection resources

Related Technical Guides for Leveler Theory and Buyer Questions

Use these Henli technical articles for theory, troubleshooting, buyer questions, and problem terms such as roller leveling process, sheet metal leveling methods, leveler vs straightener, and coil set correction.

Sheet Leveler vs. Coil StraightenerClarifies where sheet leveling and coil straightening fit in a stamping or sheet-processing workflow. How Precision Levelers Remove Internal StressExplains repeated bending through rollers and residual stress reduction before forming or assembly. Sheet Metal Leveler Engineering GuideReviews roller count, roller diameter, material width, thickness range, and sizing factors. Thin Plate Precision Leveling GuideUseful when the material is thin, sensitive, or easily scratched. Precision Leveler Machine Price GuideSummarizes cost drivers such as roller system, width, control method, and surface protection. Does Every Coil Feeding Line Need a Leveler?Helps decide whether a press feeding line needs independent leveling or simple coil set correction.

Application notes

Material Leveling Application Notes for Sheet and Coil Projects

These material-focused articles show the kinds of flatness, warpage, surface, and downstream-process questions Henli needs to check before recommending a precision sheet metal leveler or coil leveling machine.

Laminated Sheet Etching Pre-treatmentFor laminated sheet and appliance-related processes where flatness and surface handling matter. High-Density Mesh Aluminum PanelsFor mesh, perforated, and panel materials where local deformation affects assembly. Copper Busbar WarpageFor conductive copper parts where warpage, thickness, and surface pressure need review. Perforated Metal and Etched MeshFor punched, etched, or perforated materials where roller support and part geometry matter.

Buyer questions

FAQ: Precision Sheet & Coil Leveler Selection

How does the 0.03-6.0mm range relate to the available models?

The family selection range includes a dedicated Ø10mm ultra-precision model for 0.03-0.3mm material and SSL configurations with Ø20mm to Ø54mm work rollers. The detailed SSL table on this page covers the Ø20mm group for 0.1-0.6mm material. Use the roller diameter guide for the other starting ranges, then confirm material grade, width, surface requirements, and working mode.

When should I choose a 6-Hi thin strip precision leveler?

The dedicated Ø10mm 6-Hi ultra-precision model covers the 0.03-0.3mm starting range, including 0.04mm strip. Confirm the material grade, width, surface requirements, and target flatness using its separate product specifications.

When should I choose a dual-stage precision leveler?

Choose the dual-stage model when the material is mainly 0.1-0.6mm thin coil or sheet stock and the process needs rough leveling plus fine leveling before stamping.

What information is needed for leveler selection?

Send material type, thickness, width, yield strength if available, coil or sheet mode, surface requirement, target flatness, line speed, feeding equipment, and downstream press or cutting process.

Need a precision sheet metal leveler matched to your material?

Share your material thickness, width, coil or sheet mode, surface requirement, flatness target, line speed, and downstream equipment. Henli will help confirm whether the project should use the SSL precision sheet metal leveler path, a dedicated thin-strip leveler, a dual-stage leveler, or another coil straightening solution.

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