Precision Knife Edge Ruler China Factory and Professional Suppliers

Get high-precision knife edge rulers from a leading China factory. Specialized suppliers of magnesium aluminum tools for straightness and planarity measurement using the light gap method. Featuring 1um accuracy and 0.025m roughness for industrial machining.

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Details

Detailed Parameters

Material Options	Magnalium / Stainless Steel / Alloy Tool Steel	Accuracy Grade	0 Class / 1 Grade / 2 Grade
Available Sizes	75mm - 2000mm (Custom up to 4000mm)	Straightness Error	Controlled within 1 μm
Surface Roughness	Approximately 0.025 μm	Yield Point	110kg/mm²
Certification	ISO9001 Certified	Warranty	1 Year Standard Warranty
Custom Support	OEM and ODM Available	Packaging	Professional Plywood Box

Key Advantages

High Stability

Undergoes rigorous stability and demagnetization treatment to prevent measurement drift.

Efficient Operation

Simple structure allows for rapid flatness verification using the light gap method.

Extreme Precision

0-class accuracy ensuring that straightness errors remain within 1 micron.

Lightweight Design

Magnesium aluminum options provide ease of handling without sacrificing rigidity.

Corrosion Resistant

High-grade materials ensure the ruler does not rust, maintaining a pristine edge.

Easy Storage

Supplied in protective plywood boxes to prevent damage and maintain calibration.

Product Gallery

Management Platforms

Material Sourcing

Strict selection of Magnalium and Alloy Tool Steel for maximum dimensional stability.

Precision Grinding

Advanced grinding processes to achieve 0-class accuracy and 0.025μm roughness.

Quality Testing

Each unit is verified against ISO9001 standards for strict flatness compliance.

Stability Treatment

Thermal and magnetic treatments to ensure long-term precision in varied climates.

Logistics Control

Secure plywood packaging for safe sea or air shipment globally.

OEM Customization

Tailored lengths from 75mm to 4000mm based on specific industry requirements.

Investment Return Comparison

Feature	Standard Steel Ruler	Storan Knife Edge Ruler	Business Value
Accuracy	General Grade	0-Class Precision	Higher QC Pass Rate
Weight	Heavy/Bulky	Lightweight Magnalium	Faster Inspection Speed
Durability	Prone to Rust	Stability Treated	Lower Replacement Cost
Verification	Visual Only	Feeler Gauge Compatible	Quantifiable Data
Stability	Thermal Drift	Demagnetized/Stable	Reduced Measurement Error

Frequently Asked Questions

Q: What is the difference between Magnalium and Stainless Steel knife edge rulers?

Magnalium rulers are significantly lighter and easier to handle for large-scale measurements, while stainless steel offers higher hardness and wear resistance. Both maintain the required precision levels.

Q: How do I measure flatness using the light gap method?

Place the ruler edge perpendicular to the surface. If light passes through unevenly, the surface is uneven. Use a feeler gauge in the gaps to determine the exact flatness error.

Q: Is the ruler compatible with feeler gauges?

Yes, our knife edge rulers are specifically designed to be used in conjunction with feeler gauges to quantify the gap and determine the precision of the plane.

Q: What does "0-class accuracy" mean for these tools?

0-class represents the highest precision grade, where the straightness error is strictly controlled within 1 micron (1μm), suitable for high-precision aerospace and automotive parts.

Q: Can you provide customized lengths for specific industrial needs?

Yes, we support OEM and ODM services. While our standard range is 75-2000mm, we can manufacture straight edges up to 4000mm upon request.

Q: How should these rulers be stored to maintain accuracy?

Rulers should be stored in their original plywood boxes in a temperature-controlled environment to prevent thermal expansion and physical damage to the edge.

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