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  SDP/SI Manufacturing Capabilities


Manufacturing Precision Gears and High-Quality Mechanical Components in New York since 1950



Capabilities Include:

  • Turning: 1/8" to 8" diameter
  • Milling: 8" x 20"
  • Machining Tolerances: as tight as: +/- .0001
  • Gear Cutting: Gears and Racks: 16DP to 200DP
  • Gear Cutting: Worms and Worm Wheels: 16DP to 72DP
  • Gear Cutting Tolerances: Molded Gears: AGMA 5 / Machined Gears: to AGMA 14
  • Custom Precision Shafting: 1/32" to 1-1/2" diameter / Tolerance: +/- .0001" / Straightness: up to .0003"/Inch / Length: up to 12 feet
  • Materials: Aluminum, Stainless Steel, Steel Alloys, Acetal, Nylon, Cast Iron, Brass, Bronze, Greek Ascoloy, Inconel, Titanium
  • Plating Options, Include, But Not Limited To: Zinc, Chrome and Nickel Plating, Anodizing Finishes, Black Oxide Finishes, Painting.
    Call For Options 800-819-8900
  • Assembly: Mechanical Assemblies – ISO 7 Cleanroom



SDP/SI’s manufacturing capabilities are the cornerstone of our business and the key to our long-term partnerships. Our precision gears, high-quality machined components, and molded parts are used around the world in a wide range of applications.

Many of the components are customized and manufactured to meet the strict requirements of the aerospace, defense, and medical industries. Not only do we support our customers with manufacturing, but provide assembly of parts for easy integration into larger systems.

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Precision Gears and Custom Gear Assemblies developed and manufactured for OEMs worldwide

Specializing in the development and production of spur gears, bevel gears, racks, worm gears, shafts, spline components, sector gears, precision gearboxes, differentials, speed reducers, and other precision motion control products.

Gear Tolerance: AGMA Quality up to 14 (ISO 4)
Diametral Pitch: 16DP (406.4 m) to 200DP (5080 mm)
Max. Outside Diameter: 8" (203.2 mm)
Min. Outside Diameter: 1/8" (3.175 mm)
Precision: Tolerances as tight as +/- .0001 (+/- 0.003 mm)


When ultra precision is not required, we provide high-quality commercial grade components, shorter lead times, and lower cost!



Rapid Tooth Cutting Only Capabilities

Send Us Your Blanks for Precision Tooth Cutting – 3/16” to 4” OD

Many customers rely on us for their tooth cutting needs. With the world’s most advanced manufacturing equipment we provide fast turnaround while meeting your exact specifications. Cut and deburr Fine Pitch to Medium Pitch Gears, Pulleys, Worm Gears, Bevel Gears, and Helical Gears.



Contact us today for a quote or to learn more about our manufacturing capabilities.


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Universal Robot

Our self sustaining robot that keeps work moving overnight!




Investing in the World’s Finest Manufacturing Equipment


Continuous Measurable Improvement

SDP/SI, a Designatronics company, is committed to an ongoing approach to improving processes, services, and products. As a precision gear and small component manufacturer we make continuous investment in the newest technologies and CNC manufacturing equipment. John Lowe, SDP/SI Manufacturing Manager collaborates with Allendale Machining Systems Inc, see it here!

  • CNC Swiss Turning – Multiple Spindle, 9-Axis
  • CNC Lathe (Mill-Turn) – Multiple Spindle, 5-Axis
  • CNC Milling & Machining Centers – 4- & 5-Axis, with Automation
  • Gear Cutting – CNC Bevel, CNC Hobbing, CNC Shaping, Coniflex Bevel
  • Gear Generators, Rack Cutting
  • Deburring Department
  • Drilling Equipment
  • Grinding Equipment
  • Honing Machines
  • Plastic Injection Molds
  • Plastic Injection Machines
  • Timing Belt Slicing Machines
  • Timing Belt Ink Jet Printers
  • Ultrasonic Welders
  • Miscellaneous Equipment
  • Certified Inspection Equipment
  • SPC Capabilities
  • ISO 7 Class 10000 Clean Room - Assembly
  • 3D Printing for prototypes and low rate production