Benchtop leveling for thin metal parts

Desktop Precision Roller Leveler for Small Parts & Thin Sheets

The HENLI DPL series levels suitable thin strips, small flat parts and test samples for labs, R&D and small-batch production. Choose DPL-100 or DPL-200 for the material width, thickness and part geometry, then confirm the result through sample testing.

DPL-100 / DPL-200Manual hand-wheel adjustmentVariable leveling speedSample testing available

Get a Free Quote Check Specifications

DPL desktop precision roller leveler with hand-wheel adjustments and compact machine body — Compact roller leveling for suitable small flat parts and thin strips. Match the model and sample to your required result.

0.08–1.0 mmCombined coverage across two models; check each model range.

100 / 200 mmMaximum material width by model.

21 / 19 RollersDPL-100 / DPL-200 roller counts respectively.

0–10 m/minVariable leveling speed listed for both models.

Two models, different working ranges

Choose the Model for Your Actual Part

Start with thickness and width, then review the material hardness, part length, openings or formed features, incoming deformation and target flatness. A thickness range alone does not establish a usable part size.

DPL-100

Narrow Strips and Thinner Samples

For suitable small flat parts and strips up to 100 mm wide. Its listed 0.08–0.6 mm range covers thinner material than DPL-200.

0.08–0.6 mmMaterial thickness

100 mm max.Material width

21 · Ø15 mmLeveling rollers

≤35 kgMachine weight

DPL-200

Wider Thin Strips and Small Sheets

For suitable samples and small sheets up to 200 mm wide. Its listed 0.1–1.0 mm range extends to thicker material than DPL-100.

0.1–1.0 mmMaterial thickness

200 mm max.Material width

19 · Ø20 mmLeveling rollers

Approx. 60 kgMachine weight

The series range combines two models. For example, 0.08 mm material is within the listed DPL-100 thickness range, while 1.0 mm material is within the DPL-200 range. Confirm the width, material and part handling for either application.

Small-part and sample work

Bring Leveling to the Workbench

DPL supports laboratory trials, prototype work and small batches of suitable flat metal parts. A representative sample helps establish settings and the practical handling route before regular production.

DPL roller leveler on a workshop bench with visible hand-wheels and machine body

Workbench use

Benchtop Machine Layout

The workshop view shows the compact machine body, adjustment hand-wheels and working area. Review bench stability, material support and operator access for your setup.

Thin metal strips and a flat circular sample displayed on the DPL machine cover

Sample candidates

Thin Strips and Flat Sample Shapes

The pictured thin pieces and disc illustrate sample shapes to review. Each part still needs a check of its dimensions, material, roller engagement and support.

Flat stamped parts

Shims and Small Flat Pieces

Assess curl or handling deformation before inspection or assembly. Terminals and contact parts need a geometry review, particularly if they have formed features.

Thin metal strips

Material and Surface Trials

Review stainless steel, copper, aluminum, brass, phosphor bronze or carbon steel within the selected model range, including the actual grade and temper.

R&D and prototypes

Test Before Scaling Up

Evaluate settings, handling and the resulting flatness on representative samples before selecting equipment for a larger production process.

Model specifications

DPL-100 and DPL-200 Technical Comparison

Use these values for initial screening. Confirm the material properties, part geometry and target flatness, together with the installation and electrical configuration, for the ordered machine.

Specification	DPL-100	DPL-200
Maximum material width	100 mm	200 mm
Material thickness	0.08–0.6 mm	0.1–1.0 mm
Leveling rollers	21 rollers	19 rollers
Roller arrangement	10 upper / 11 lower	9 upper / 10 lower
Roller diameter	Ø15 mm	Ø20 mm
Leveling speed	0–10 m/min	0–10 m/min
Motor power	120 W	Confirm with quotation
Adjustment	Manual hand-wheel	Manual hand-wheel
Machine weight	≤35 kg	Approx. 60 kg

On small screens, scroll the table sideways to compare both models. Imperial values are rounded conversions. DPL-200 motor power and the complete supply voltage, frequency and phase are confirmed with the quotation.

Small-part fit needs more than a maximum width. Send the minimum and maximum part length and width, outline, holes, cutouts and formed features. Confirm whether the piece can engage the rollers and remain supported through entry and exit.

Machine access and material support

Check the Working Area Against Your Part

Review the entry and exit layout, adjustment access and handling route. Very short, narrow or irregular parts need an application review; the page does not specify a universal minimum part size.

Desktop leveler with yellow front guard, upper adjustment scales and a side support table

Working layout

Guarded Working Area and Support Table

This machine view shows the front cover, top adjustments and adjacent material support. Check how your sample is presented to the rollers and supported after leveling.

Desktop leveler with front cover open to show the roller area and adjacent support table

Inspection view

Roller Access for Inspection

The open-cover view shows the roller area and table arrangement for inspection. Follow the supplied machine instructions for access, setup and operation.

How the roller system works

Repeated Bending Through a Compact Roller Set

Staggered rollers bend and reverse-bend suitable thin material as it passes through. Diameter, spacing, roller count and adjustment work together; more rollers alone do not establish a better result for every part.

CAD illustration of a desktop leveler motor connection, gear train and roller assembly

Engineering illustration

Drive and Roller Structure

The engineering illustration shows the motor connection and roller assembly. Use it to understand the compact arrangement, then confirm the supplied model configuration.

CAD cutaway showing staggered upper and lower rollers in a compact desktop leveler

Engineering illustration

Staggered Roller Arrangement

The section view illustrates upper and lower rollers along the material path. The specification table lists 10 upper / 11 lower for DPL-100 and 9 upper / 10 lower for DPL-200.

Set hand-wheel adjustment and speed for the actual material. Check both flatness and surface condition during the sample run, and record a suitable setup for repeat work.

Sample testing

Agree the Result Before Final Selection

Share the sample details first, then agree the quantity and test requirements with HENLI before shipping parts. A test video or result review helps your team assess handling, flatness and surface condition.

01 · Describe the sample

Material and Part Geometry

Provide grade, temper or hardness, thickness, width, length, photos and a drawing where available. Identify openings, formed features and delicate surfaces.

02 · Define the target

Flatness and Inspection

Describe the incoming curl, coil set or wave. State the required flatness, measurement length, inspection method and expected downstream use.

03 · Review the trial

Handling and Output

Review entry and exit support, the tested settings, surface condition and the measured result. Use those findings to confirm model fit and the work process.

DPL desktop roller leveler test video preview — DPL leveling test video. Watch on YouTube. Assess your own material through an agreed sample test.

Arrange a Sample Test

Installation and equipment selection

Plan the Bench, Support and Production Route

A compact machine still needs a suitable installation. Review machine dimensions, weight, working clearance, material support and the electrical supply before ordering.

Workbench preparation

Confirm the Installation Details

Check bench load capacity and stability against the selected machine, including DPL-100 at ≤35 kg or DPL-200 at approximately 60 kg. Obtain the installation drawing and confirm supply voltage, frequency and phase.

Larger workpieces or coil lines

Review a Larger Leveler

For material wider than 200 mm, thicker than 1.0 mm, larger individual sheets or flat parts, or a continuous coil-fed press line, review a suitable precision sheet and coil leveler and the required equipment arrangement.

Sheet & Coil Leveler OptionsCompare equipment by material and process.Roller Diameter GuideUnderstand roller selection and material range.Precision or Standard LevelingCompare the required result and application.

Further reading: guide to sheet metal leveling and why roller leveling may be necessary.

Quotation and sample-test checklist

Send Your Part Data for DPL Selection

HENLI can review whether DPL-100, DPL-200 or a larger leveler fits your material and production needs.

1Material and geometry: grade, hardness, thickness, width, part length, outline and any formed features; photos or drawings.

2Required result: incoming deformation, target flatness, inspection method, surface requirements and batch volume.

3Installation: available bench space, material support, power supply and whether a sample test is required.

Start with the material data and part description below. HENLI can then confirm which drawings or samples are needed for the next step.

FAQ

Frequently Asked Questions

What is a desktop precision roller leveler used for?

The DPL series levels suitable thin strips, small flat parts and test samples for labs, R&D, prototyping and small-batch production. Typical candidates include flat stamped pieces, shims and small sheet samples. Confirm the material, part geometry and required result before selecting a model.

How do DPL-100 and DPL-200 differ?

DPL-100 has a maximum material width of 100 mm, a listed thickness range of 0.08–0.6 mm, 21 leveling rollers of Ø15 mm and a 120 W motor. DPL-200 has a maximum width of 200 mm, a listed thickness range of 0.1–1.0 mm and 19 rollers of Ø20 mm. Confirm DPL-200 motor power with the quotation.

Can both models process the full 0.08–1.0 mm range?

No. The 0.08–1.0 mm range describes the coverage across the two models. DPL-100 is listed for 0.08–0.6 mm and DPL-200 for 0.1–1.0 mm. Selection must also consider width, material hardness, deformation and part geometry.

What is the minimum part size?

Minimum usable length and width depend on whether the part can engage the rollers and be supported through entry and exit. Send the dimensions, outline and photographs or drawings for a handling review. Very short pieces, narrow shapes, openings and formed features may require sample testing or another process.

Why are there 19 or 21 leveling rollers?

The staggered rollers apply a sequence of bending and reverse-bending steps as suitable thin material passes through. Roller count works together with diameter, spacing and adjustment; it does not on its own establish suitability or a guaranteed flatness. Compare the complete model and the actual sample result.

Which metals can be assessed for DPL leveling?

Typical candidates include stainless steel, copper, aluminum, brass, phosphor bronze and carbon steel within the selected model range. Share the grade, temper or hardness and surface requirements. Special alloys, unusually hard material and delicate surfaces need an application review and may require a sample test.

Does DPL guarantee a particular flatness?

The result depends on material properties, incoming curl or deformation, part geometry and the setup. Specify the target flatness, measurement length and inspection method, then use a representative sample test to assess the result. A general thickness range is not a flatness guarantee.

What should I confirm for workbench installation?

Check machine dimensions, bench load capacity and stability, entry and exit support, access for adjustment and the required power supply. DPL-100 is listed at ≤35 kg and DPL-200 at approximately 60 kg. Confirm the installation drawing, handling arrangement and electrical configuration for the ordered machine.

Can Henli test my parts before purchase?

Yes. Share material data, dimensions, photographs or drawings and the target flatness first. Agree the sample quantity and test requirements with Henli before sending parts. A leveling test video or result review helps your team assess model fit and handling before final purchase.

When should I choose a larger precision or coil leveler?

Review a suitable larger leveler for widths above 200 mm, thicknesses above 1.0 mm, larger individual sheets or flat parts, or continuous coil processing integrated with a decoiler, feeder and press. Henli can review the material and production setup to select the appropriate equipment.