23 Roll Stretch Leveler for Copper Strip in Electrical Systems
Stretch leveling combines elongation with bending so residual stress is worked out of the strip rather than simply bent flat. On copper for electrical systems that matters, because the parts are stamped and formed after leveling and any locked in stress shows up as distortion.
- 23 roll stretch leveling configuration
- Copper strip 0.08-1 mm
- Aimed at electrical systems manufacturing
- Q235A welded open frame with hydraulic servo control
Key Benefits
What stretch leveling adds.
Stress Removed Not Hidden
Elongation under tension redistributes internal stress, so the strip stays flat after it is cut and formed.
Consistent Feed For Precision Parts
Electrical and electronic parts are made to tight tolerance, and consistent flat feed protects both tooling and yield.
Fine Control Across 23 Rolls
The roll count allows the correction to be applied gradually rather than in a few heavy steps.
Where It Is Used
Applications.
- Copper strip leveling for electrical systems
- Electronic component material preparation
- Automotive electrical parts
- High and low voltage component production
Who It Is For
- Copper strip processors serving electrical customers
- Electrical component manufacturers
- Plants with distortion problems after stamping
- Buyers comparing stretch and tension leveling
Problems It Solves
- Distortion appearing after stamping and forming
- Residual stress left by rolling
- Flatness variation across thin copper coil
- Tooling wear caused by uneven feed material
Technical Features
Machine composition.
Stretch Plus Bending
Elongation is applied together with the bending sequence so stress is redistributed through the thickness.
Servo Controlled Positioning
The hydraulic servo system positions the pressing and swing mechanisms with sensor feedback.
Rigid Open Frame
The Q235A welded frame keeps the geometry stable while elongation load is applied.
Specifications
Configuration is matched to the copper grade and gauge band.
| Roll Count | 23 roll stretch leveling configuration |
|---|---|
| Strip Material | Copper strip |
| Thickness Range | 0.08-1 mm |
| Frame Material | Q235A steel plate, continuously welded |
| Control | Hydraulic servo system with sensor devices |
| Target Sector | Electrical systems and electronic components |
Materials
- Q235A steel plate frame
- Ground small diameter work rolls
- Hydraulic servo and tension components
Manufacturing Process
Material Review
Copper grade, temper, gauge and target flatness define the configuration.
Frame Manufacture
The frame is welded, stress relieved and machined for elongation load.
Roll Production
The roll set is produced and finish ground for copper contact.
Assembly And Test
Tension, elongation and roll parallelism are verified before shipment.
Quality Control
- Frame and roll alignment inspection
- Roll surface finish verification
- Tension and elongation system test
- Servo positioning check
Customization Options
- Elongation range for your copper temper
- Roll diameters for the gauge band
- Width and tension capability
- Automation interface
Use Guide
- Set elongation from the temper and gauge, not a single recipe
- Monitor elongation to avoid work hardening the strip
- Keep roll surfaces clean of copper pickup
- Record settings per product for repeatable stamping performance
How It Compares
Stretch leveling against plain tension leveling.
| Tension leveling without elongation control | Controlled elongation redistributes residual stress so the strip stays flat after forming. |
|---|---|
| Roller leveling | Bending alone can flatten the strip visually while leaving the stress that causes distortion later. |
| Fewer roll configurations | 23 rolls apply the correction gradually, which suits soft thin copper. |
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Read More23 Roll Stretch Leveler for Copper Strip FAQ
What is the difference from a tension leveler?
A stretch leveler applies controlled elongation together with bending, which redistributes residual stress rather than only correcting visible shape.
What copper thickness does it handle?
0.08 mm to 1 mm, configured to the gauge band you run most.
Which industries use it?
Electrical systems and electronic component manufacturing, plus automotive electrical parts.
How much elongation should we run?
It depends on copper grade, temper and incoming flatness. We set the range during commissioning so the strip is corrected without work hardening.
Can it be retrofitted into an existing line?
Yes. Send the line layout, tension data and available length.
What do you need to quote?
Copper grade and temper, thickness and width range, incoming flatness, line speed and target flatness.
Remove Stress From Your Copper Strip
Send your copper grade and gauge range and we come back with a stretch leveler configuration.