A Family Tradition of Growth

Headquartered in Hanover, Massachusetts, Sturtevant Inc. is a family-owned manufacturer of materials processing equipment, including crushers, fine grinders and air classifiers. Since 1883, the company has provided processing solutions to the chemical, pharmaceutical, foods and mineral processing industries. Founded by Thomas L. Sturtevant, the company is currently managed by W. Sturtevant English, Jr., the fifth generation from the company's founder.

Fine Grinding and Air Classification Product Lines

  • Micronizer ® - Jet Mills
  • Air Classifiers
  • Simpactor ® - Pin Mills
  • Powderizer ® - Air Classifying Mills
  • Hammermills
  • Roll Crushers
  • Jaw Crushers
  • Rotary Crushers
  • Sample Grinders

Company Services


Using the latest CAD and finite Element Analysis, Sturtevant models equipment to understand and eliminate stresses that could cause failure. Less carefully designed equipment could break down more often or fail catastrophically. Sturtevant takes these extra steps to protect company investments and their employees' safety.

Consultation with Application Specialists

Sturtevant Inc. offers free consultation on size-reduction or product-classification challenges with over 125 years of experience helping customers evaluate the best way to achieve fine particle sizes, validate product expectations and confirm economic feasibility.

Replacement Parts

Manufactured to strict original factory specifications, Sturtevant's OEM replacement parts ensure safer operation and less downtime and carry full factory warranties.

Testing Facility

Sturtevant's test facility in Hanover, Massachusetts, is capable of milling or air classifying dry solids to ¼" - 0.5 microns. Qualified laboratory technicians optimize equipment capacity and recommend wear-protection and material-handling requirements. Customers can visit the facility and benefit from hands-on experience, equipment operator training and technical presentations.

Field Services

Sturtevant's service department is available to assist in the installation and start-up of new equipment. Qualified servicemen can provide comprehensive field inspections to evaluate equipment condition and recommend adjustments and/or parts replacement.

Remanufacturing Services

Rebuilding and remanufacturing of entire machines or sub-assemblies to original factory specifications.


Sturtevant Inc.
Sturtevant Inc.
Sturtevant Inc.
  • Aggregates, Crushed Stone
  • Agricultural Chemicals
  • Carbon Black
  • Ceramics
  • Chemicals
  • Clay
  • Cocoa
  • Cornstarch
  • Corn Slurry
  • Deagglomeration
  • Densification
  • Diatomaceous Earth
  • Epoxy Powder Coatings
  • Flour
  • Fly Ash
  • Food Products
  • Gypsum
  • Heat Sensitive Materials
  • Hydrated Lime
  • Infestation Destruction
  • Limestone
  • Magnesium Hydroxide
  • Minerals and Metals
  • Packed Product Recovery
  • Pharmaceutical Powders, Cosmetics
  • Pigments
  • Plastics
  • Powdered Milk
  • Precious Metals
  • Propellants
  • Resins
  • Silica Sand
  • Soda Ash
  • Sodium Bicarbonate
  • Starch
  • Stucco
  • Sugar
  • Talc
  • Titanium Dioxide
  • Toner

Supplier Directory Categories

Sturtevant Inc. is listed in these categories:

Technical Articles

Contamination-Free Milling (Materials Processing Equipment) Initially developed for the pharmaceutical industry, the Micronizer jet mill became so popular that it was soon modified for use in other industries-including ceramic manufacturing. Designed with an... (View Full Article)
Minimizing Minus No. 200 Mesh (.pdf) (Materials Processing Equipment) A Texas-based contractor turns de-dusting into dollars via an innovative air classifier. (View Full Article)