Vale3302n rulo cun dy in kiu l xo t cun rulo vit hn represents a precise technical specification used in industrial roll forming and material handling systems. Professionals rely on this notation to communicate roll geometry, material limits, and operational boundaries clearly across teams and equipment manuals.
Understanding the exact meaning of each symbol helps avoid misalignment, reduces downtime, and supports consistent quality in high-volume production environments. The following sections break down the most relevant dimensions, performance factors, and practical guidance tied to this specification.
| Parameter | Symbol in Vale3302n | Typical Unit | Design Implication |
|---|---|---|---|
| Roll Outer Diameter | rulo | mm or inches | Controls bite angle and cross-sectional shape |
| Core Inside Diameter | cun | mm or inches | Determines mandolin fit and clamping method |
| Working Offset Dy | dy | mm | Adjusts load distribution across the roll face |
| Line Speed Requirement | kiu | m/min or ft/min | Matches roll inertia to process throughput |
| Material Hardness Limit | xo t | HRB or MPa | Defines maximum workpiece hardness for roll life |
| Roll Length Direction | vit | mm | Inferences contact length and deflection control |
| Bearing Configuration | hn | Type or code | Supports roll end loading and thermal growth |
Roll Diameter and Geometry Guidelines
Optimizing Roll Outer Diameter
The rulo dimension directly influences contact pressure and forming accuracy. Larger diameters spread load over a longer arc, reducing local stress but requiring more torque.
Matching Mandolin ID
The cun measurement must align with your shaft or mandrel system. Tolerance selection here prevents wobble, avoids premature bearing wear, and simplifies roll changes during setup.
Offset Dy and Load Distribution
Role of Working Offset Dy
Adjusting dy allows engineers to fine-tune the force path through the roll. Proper offset reduces edge wear and minimizes deflection, especially in wide or high-strength materials.
Validation Methods
Use strain gauges or finite element analysis to confirm that offset values keep stress below the roll material yield limit under peak production loads.
Speed, Material, and Line Integration
Balancing kiu and xo t
The kiu parameter sets the line pace, while xo t defines the maximum workpiece hardness the roll can handle without chipping or excessive flattening. Faster speeds typically require materials with higher toughness grades.
Throughput Planning
Match the selected roll to target machine speed, considering thermal expansion at higher rolling temperatures and possible shifts in dimensional tolerances over long runs.
Mechanical Design and Support
Roll Length and Vit Considerations
The vit value defines the active rolling length. Longer rolls demand stronger frames and more precise leveling to maintain uniform gap across the width.
Bearing and Housing Selection
The hn code identifies bearing type, sealing, and lubrication strategy. Select configurations that tolerate expected shock loads, vibration, and contamination levels in your environment.
Key Recommendations
- Verify rulo and cun against mandrel or shaft standards before ordering.
- Confirm dy offsets through simulation or measured trials for critical tolerances.
- Set kiu based on line goals while respecting xo t hardness limits.
- Choose hn bearing types that match environmental and load conditions.
- Document vit length to ensure frame rigidity matches expected roll loads.
FAQ
Reader questions
How do I interpret vale3302n rulo cun dy in kiu l xo t cun rulo vit hn on a drawing?
Treat each segment as a fixed parameter: rulo is the outer roll diameter, cun is the inner bore, dy is the radial or axial offset, kiu is the recommended line speed, xo t is the maximum material hardness, vit is the roll axial length, and hn is the bearing type code.
Can I substitute a different cun size without changing other parameters?
Changing the core diameter affects shaft fit, bearing load paths, and roll inertia. Verify that the new cun remains within manufacturer specified limits and that bearings and drive components are re-evaluated for capacity.
What happens if dy is set incorrectly for my application?
An incorrect offset can cause uneven wear, edge waves, or unexpected roll deflection. Follow setup guidelines or run trial passes with measurement checks to confirm proper load distribution along the roll face.
How do xo t and kiu interact when selecting rolls for a new material?
Higher material hardness usually requires slower speeds or specialized roll coatings to preserve surface finish and roll life. Cross-reference material data sheets with kiu recommendations to avoid overstressing the roll or the process equipment.