Roller Assembly for Ultra-Precision 23-High Straightener
We proudly present our custom-engineered roller assembly for ultra-precision 23-high straightener, tailor-made for sophisticated metal flattening production lines. This optimized roller assembly delivers unparalleled sheet flatness via finely tuned multi-layer roller layout and micro-residual stress removal technology. Exclusively engineered for processing copper coils, aluminum coils and special alloy steel strips, it thoroughly erases typical flatness defects such as central ripples, edge waves and stress distortion. The built-in high-accuracy regulating unit guarantees stable finished product consistency, lifting overall production yield by as much as 25% while preserving flawless surface finish for high-standard etching processing.
1.Core strengths of the roller assembly for Ultra-Precision 23-High Straightener are listed below:
The roller assembly serves as the core wear part of the straightening machine, tasked with supporting work rollers and intermediate rollers to restrict work roller bending and distortion. This stable structural performance directly secures steady processing efficiency and uniform quality of metal coils and strips.
Its core operational performance indicators include:
- Improved Surface Rigidity:
Advanced thermal treatment attains high surface hardness ranging HRC 58-65, delivering remarkable anti-abrasion capability and preventing surface deterioration under long-duration continuous operation.
- Balanced Bulk Hardness Consistency:
Regulated quenching and tempering procedures maintain hardness deviation within ±2 HRC across the whole roller matrix, eliminating local soft zones and realizing even abrasion loss across roller surfaces.
- Thickened Hardened Layer Technique:
Custom carburization and induction hardening create a dense strengthening layer of 15–25mm depth on roller bodies, extending service lifespan and maintaining stable performance under heavy continuous loads.
- Excellent Structural Strength & Anti-Impact Property:
Both roller barrel and roller neck adopt optimized mechanical design, combining yield strength above 800 MPa and impact toughness ≥25 J (20°C) to endure intense working pressure and instantaneous shock loads.
- Superior Anti-Wear Performance:
Premium alloy raw material plus sophisticated surface processing grant great resistance to abrasive and adhesive wear, effectively lengthening maintenance cycles for high-friction flattening scenarios.
- Reliable Anti-Spalling Performance:
Optimized internal material texture and residual stress adjustment avoid surface flaking and peeling, even under repeated thermal cycling and mechanical load fluctuations.
- Strong Overload Shock Resistance:
Reinforced structural design with outstanding anti-fatigue capacity handles sudden impact and accidental overloads, sustaining stable running in heavy-duty metal straightening workshops.
2..Application Scope & Processed Materials
This series of roller assemblies is extensively adopted across multiple industrial sectors, with dominant deployment in metal rolling and finishing industries. The roller spindles are forged from premium carbon steel and stainless steel grades. Modern ultra-precision straightening equipment fitted with our roller assemblies features the following merits:
- Ultra-precise positioning tolerance
- Optimized power consumption efficiency
- Constant stable running parameters
Benefiting from the above superior features, our roller assemblies are widely applied in downstream industries:
- Automobile manufacturing: Forming automotive structural parts and shell components
- Home appliance fabrication: Producing metal outer casings for fridges, washing machines and ovens
- Construction sector: Processing architectural metal sheets and extruded profiles
3.Work Roll Bending Regulation Technology
Proprietary work roll bending adjustment technology acts as a reliable solution to eliminate strip flatness defects. In actual industrial operation, it falls into two control modes:
- Positive roll bending adjustment
- Negative roll bending adjustment
Accurate fine-tuning of bending force realizes three core processing targets:
- Uniform strip thickness control across full width
- Precision correction of metal sheet flatness imperfections
- Overall upgrade of finished metal strip quality
Adoption of this bending adjustment technology not only boosts line throughput, but also strengthens market competitiveness of finished metal products for clients.
Technical Specifications of Roller Assembly
Thermal Treatment Standards
- Surface quenching hardness: HRC 63–65
- Hardened penetration depth: 3–5 mm
Surface Protective Coating
- Full roller surface hard chrome plating treatment
- Chrome coating thickness: 0.03–0.05 mm
4.Production Value & Significance
Work rollers are the central functional components of straightening equipment, carrying decisive influence on whole production lines:
- Running status and dimensional precision directly define key quality standards of final metal strips
- Service performance and wear life determine the continuous operating efficiency of the entire flattening workflow
