Sigma Z

 OverviewSigma Z is Rex-Cut's most aggressive grinding wheel, engineered for rapid stock removal on cast iron, stainless steel, carbon steel, titanium, nickel alloys, hard-face materials, and superalloys. Precision-balanced for noticeably smoother and quieter grinding, Sigma Z helps operators remove material quickly while maintaining control and reducing fatigue.

Key Benefits
• Extremely fast and aggressive stock removal
• Precision-balanced for smooth, chatter-free grinding
• Long wheel life with high productivity
• Cool grinding action on stainless steel and alloys
• Reduces operator fatigue during prolonged grinding

Material & Performance
Manufactured with premium abrasive grain, Sigma Z combines aggressive grinding performance with exceptional operator control. Its precision-balanced construction minimizes vibration and chatter while delivering cool grinding action, consistent performance, and long life in demanding applications. Sigma Z will not discolor or warp stainless steel surfaces during grinding.

Applications
• Heavy weld removal
• Tank fabrication
• Welding and metal fabrication
• Petrochemical refinery and power plant maintenance
• Shipbuilding and foundry work
• Beveling for weld preparation
• Grinding slag from castings
• Removing mill scale from steel
• Grinding hard-face materials and wear surfaces

Results
• Increase grinding productivity
• Remove material faster with less effort
• Reduce operator fatigue
• Maintain consistent grinding performance throughout wheel life

Specifications

Grain Type

  • Premium Grain

Grain Size

  • 24

Tips

  • Follow Sigma Z with Max Flex 54 grit to achieve a #4 finish

Product Specifications Chart

SIZE SPEC PART NUMBER MAX RPM
5 x 1/4 x 5/8-11 24 730041 12,200
6 x 1/4 x 7/8 24 730032 10,100
7 x 1/4 x 7/8 24 730033 8,500
7 x 1/4 x 5/8-11 24 730043 8,500
4-1/2 x 1/4 x 7/8 24 730030 13,300
4-1/2 x 1/4 x 5/8-11 24 730040 13,300
5 x 1/4 x 7/8 24 730031 12,200
6 x 1/4 x 5/8-11 24 730042 10,100
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