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Gundlach Nanosiz

NANOSIZ-R HC by Gundlach Crushers are ideal for fine-grinding applications of limestone, fertilizers (including nitrate, phosphate, and potash), and other friable materials. The NANOSIZ-R HC roll mill delivers crushing performance that provides a real edge in day-to-day operations. It’s compact, affordable, and perfect for making 1 to 2 mm (.04″ to .08″) product, generating less dust and noise compared to other crushers. The standard version can crush up to 40 short tons per hour, while the high-capacity version can handle up to 132 short tons per hour. With various roll groove configurations, durable construction, and versatile design, these roll mills offer efficient, cost-effective, and precise crushing capabilities for a range of materials.

Inlet View of Corrugated Rolls
nanosiz set
High Capacity Model
Nanosiz 2
Close-Up of Corrugated Rolls
Features and Benefits
  • Compact and affordable design.
  • Available in standard and high-capacity models.
  • Less dust generation and low noise compared to similar crushers.
  • Grooved (corrugated) rolls for consistent fine product output.
  • Various roll groove configurations available to suit different applications.
  • Rolls can be re-grooved for extended use.
  • Close-clearance double-row spherical roller bearings for tight product size control.
  • Special combination shaft/housing seals and ventilation ports for efficient airflow management.
  • Available in different roll lengths to meet capacity requirements.
  • Real edge in day-to-day operations with high crushing performance.
  • Crushes up to 40 short tons per hour (standard) or 132 short tons per hour (high-capacity).


  • Suitable for fine-grinding applications of limestone, fertilizers, and other friable materials.
  • Lower capital and energy costs compared to existing technologies.
  • Small footprint for installation in limited spaces.
  • Versatility for processing salts and fertilizers with different material characteristics.
  • Reliable roll mill technology with proven performance in fine-grinding applications.
  • High service reliability with reported online service of 98%.
  • Heavy-duty construction for durability and long-lasting performance.
  • Accurate roll gap adjustment system for precise control over product size.
  • Adjustable side and end liners for optimal fit and performance.
  • Flanged input and discharge connections for easy integration into processing lines.


Cement Production  •  Chemical Processing  •  Limestone & Lime Processing  •  Mining Operations (Coal, Potash, and Other Minerals)
Petroleum Coke Processing  •  Power Generation. •  Steel Production

Technical Details

  • 18″ diameter rolls (standard model) and 32″ diameter rolls (high-capacity model) are constructed of a chilled iron alloy for high surface hardness.
  • Rolls are grooved (corrugated) to produce a consistently fine product.
  • A variety of roll groove configurations, including LePage and LePage Ring, are available on the standard model to suit various applications.
  • Multiple configurations are available on the high-capacity model as well to meet your specific applications or crushing needs.
  • With proper care, rolls can be re-grooved to extend their useful life.
  • Close-clearance double-row spherical roller bearings are used to help maintain tight product size.
  • Shaft material: 4140 steel, Forged.
  • Special combination shaft/housing seals and ventilation ports facilitate system airflow management.
  • Standard model NANOSIZ-R® roll mills are available with roll lengths of 508 mm (20″), 1016 mm (40″), and 1524 mm (60″) to suit a wide variety of capacity requirements. High-capacity model is available with a 1524mm (60″) roll length.


Potash 101 Webinar Video
Gundlach Crushers NANOSIZ-R® Webinar Video