Wire Straighteners & Roll Straighteners
A wire straightener is a roll-type straightener: straightening rolls in two offset rows bend wire, tube, strip, cable or profile back and forth so its incoming curvature is reduced to a defined final curvature before cutting, forming, welding or coating. Witels Albert offers 32 straightener series and 449 models for 0.1–100 mm (0.004–3.94 in), in configurations from 1 to 14 rolls, all with adjustable rolls and 11 series with quick-closing. The equipment is built in Germany by Witels-Albert GmbH and supported in the US from Branford, CT, where ER straighteners in common sizes are stocked.
- Series
- 32
- Models
- 449
- Size range
- 0.1–100 mm
- In inches
- 0.004–3.94 in
- US stock & support
- Branford, CT
- Engineered in Germany · ISO 9001 quality system (Witels-Albert GmbH, Berlin)
Materials
Roll configuration
Features
32 of 32 series
32 of 32
Series in this category
MP 3/4 PO
MegaPower MultiPurpose straightener with 7 separately adjustable rollers, each with a position counter, for 4–15 mm.
- Size
- 4–15 mm
- Rolls
- 7
- Wire
- Tube
- Cable
- Adjustable rolls
How to choose a wire straightener
1. Start with your material
Material and yield strength, cross-section (round wire or tube vs flat strip or profile) and diameter range. Round wire and tube typically need different roll geometry than strip or profile. Use the material filters on this page (wire 27 series, tube 24, strip 22, cable 20, profile 17).
2. Choose a roll count
More rolls give more alternating bends and a gentler step-down in bend size, which generally lowers residual curvature but lengthens the machine and adds contact points that can mark the surface. This range covers 1-roll (3 series), 3-roll (8), 5-roll (16), 7-roll (21), 9-roll (7), 11-roll (3), 13-roll (4) and 14-roll (1); some series are available in several roll counts.
3. One plane or two?
Single-plane straightening corrects curvature in one plane; two-plane units add a second set of rolls rotated 90° for cast or helix wire. Some series also correct helicity — twist out of the straightening plane — in addition to curvature.
4. Roll size, pitch and infeed
Roll pitch has to match material diameter; thick or high-yield material needs larger pitch and rolls. Infeed is set per material, diameter and lot — see our article on how a straightening machine works for the trade-offs.
5. Changeover and repeatability
All 32 series have adjustable rolls; 11 have quick-closing. Scales or indicators let operators return to a recorded setup — see reproducibility of straightening roller positions.
6. Line integration
Free-running straightener rolls are usually combined with a drive unit or capstan and guide rollers upstream and downstream of the straightener.
7. Rolls and surface protection
Groove profile and roll material limit marking on sensitive wire. Browse replacement straightening rolls matched to your straightener series.
8. What to send for a quote
Share material, diameter range, incoming curvature (cast and helix), target residual curvature, line speed and surface sensitivity. Use the FAQs above as a checklist, then request a quote or complete the Willy Wire questionnaire.
Frequently asked questions
What is a wire straightener?
A wire straightener corrects curvature, the deviation of the material from a straight line, so downstream cutting, forming, welding and coating start from consistently straight stock. Witels Albert straighteners are roll-type: straightening rolls in two offset rows bend the material alternately so an initial curvature becomes a defined final curvature.
How many straightening rolls do I need?
More rolls generally allow a tighter final curvature tolerance, because the material passes through more alternating bends. Fewer rolls apply a more aggressive bend over a shorter machine length. Roll count is a trade-off: more rolls also mean a longer machine and more contact points that can mark the surface.
When do I need two-plane straightening?
When incoming wire is curved in more than one plane, for example cast or helical wire from coils. A second set of rolls, rotated 90 degrees to the first, corrects the second plane. A single-plane unit corrects curvature in one plane only.
Does a wire straightener pull the wire through?
In-line wire straighteners usually have free-running rolls. A drive unit, a capstan or the line itself pulls or feeds the material through at line speed. Some rotary, bar and tube straighteners drive the material or rotate the tooling.
What information do you need to recommend a straightener?
Material and yield strength, diameter or cross-section range, how curved the incoming material is (including cast and helix), the residual curvature you need and how you measure it, line speed, and how sensitive the surface is. The more of this you share, the closer the recommendation.
About Straighteners
Wire, tube, and strip straighteners correct curvature — the deviation of process material from a straight line — so downstream operations such as cutting, forming, welding, and coating start from consistently flat or round stock. Witels Albert straightening equipment is built as roll-type straighteners, in which straightening rolls are arranged in two offset rows so material passes through a series of alternating bends that reduce an initial curvature into a defined final curvature. These straighteners handle wire, tube, strip, cable, and profile material across a range of diameters, roll counts, and configurations, from compact units to multi-roll lines built for continuous production.
Choosing between series starts with your material, cross-section, and how tightly curved the incoming stock is: round wire and tube typically call for different roll geometry than flat strip or profile. Roll count matters too — more straightening rolls generally allow a tighter final curvature tolerance, since the material passes through more alternating bends, while fewer rolls apply a more aggressive bend over a shorter machine length. Some series also correct helicity — twist out of the straightening plane — in addition to curvature. Adjustable and quick-closing roll options, where available, matter most on lines that change material or gauge frequently, since repeatable roll positioning shortens setup between changeovers.
Witels Albert has built straightening equipment since 1898, engineered and manufactured in Germany by Witels-Albert GmbH, whose manufacturing site in Berlin operates an ISO 9001 quality management system. In the US, ER straighteners in common sizes are stocked in Branford, CT, and every series is supported from there, so parts and technical guidance are available without routing through the factory. For help choosing a series, share your material type, dimensions, and target curvature tolerance with the Branford team, or read our overview of how a straightening machine works.
Selection help
Not sure which model fits your line?
Send your material, diameter, and throughput. Our team in Branford, CT works with Witels-Albert in Germany to specify the right configuration.