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  SDP/SI Manufacturing Capabilities

  • Capabillities

  • Our Manufacturing Team

  • Our Community

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.

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.

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

Manufacturing as a Career:

Manufacturing is a stable and secure career path with high pay and many opportunities for advancement. During the next decade manufacturers will need to fill 4.6 million high-skills, high-tech and high paying jobs, as well as leadership positions.

The average USA manufacturing worker earns $81,289, almost $20,000 more than an average employee working in other industries. The industry has one of the lowest employee turnover rates among the private sector. Today’s manufacturing jobs require high-level technical and problem solving skills.

Looking for a Career in Manufacturing?


Manufacturing Jobs May Include:

  • CNC Machinist
  • Machine Operator
  • Manufacturing/Production Planning and Management
  • Quality Control
  • CNC Programming
  • Supply Chain
  • Materials Manager
  • Mechanical Assembly
  • Manufacturing Engineering
  • Design Engineering
  • Sales Engineering
  • Applications Engineering
  • Customer Service

Meet our Manufacturing Team:

We work hard to build a strong sense of community, recognizing that growth and success originate with our people and not the latest design. Daily, weekly, and monthly meetings are held to identify opportunities, improve processes and to recognize achievement. Companywide as well as individual milestones are celebrated.

SDP/SI consistently makes the Modern Machine Shop “TOP SHOPS” list, but in 2019 we were named an honoree and presented an award at the annual Top Stops Conference in Cincinnati, OH.

We have also been recognized by Newsday as a "Top Long Island Work Place" for years 2018, 2019, and 2021.

Video Interviews with some of the team:

Michael Garcia InterviewAdele Hager
Senior Product Analyst
Michael Garcia InterviewJohn Lowe Shop
Manufacturing Manager

Michael Garcia InterviewKaren Hearne
MFG Gear Cutting Manager
Michael Garcia InterviewJuan Torres
CNC Operator

Michael Garcia InterviewRichard Morgan
CNC Operator
Michael Garcia InterviewJamie Vargas
Quality Control / Assembler

Michael Garcia InterviewLisa Grant-Woodly
Shop Technician
Michael Garcia InterviewSue Ellen Catlett
QC Inspector

SDP/SI Acknowledges Engineering and Manufacturing Advances with the help of our products:

Uniondale High School Pre-Manufacturing and PTech Students Connect with Manufacturing Leaders Virtually

On May 20, 2020 - Mr. Robert Kufner, President of Designatronics, Inc., participated in an online lesson for the PTech and pre-manufacturing students of Uniondale High School, which is located here on Long Island, NY in western Nassau County. The main idea... behind the virtual lesson was that the future of manufacturing lies in the hands of our youth. The meeting touched on the fact that manufacturing has an aging workforce and through efforts like these, CEO's and business owners hope to get young students excited about a career in Manufacturing.

Click here to download the official press release from the Euity First Foundation.



SwapStop - Autonomous Battery Replacement System

SwapStop (download the team poster) is a fourth-year design project, which was an eight-month long cumulative task, designed for the Mechatroncis Engineering Fourth Year Design Project Symposium. The idea for this project came from the team member's love of all things robotic and autonomous. Swapstop seeks to help make coordinated swarms of multi-rotor drones practical for extended use. Unfortunately, the design symposium was cancelled due to COVID-19, so the team never had the chance to show their prototype to the public. Watch their youtube video above to see their innovative design, we think it's great!

Autonomous Robot: Goose

Goose is a mobile autonomous robot designed by Paul Bupe, Jr. Built over 6 months in his spare time for a robotics competition. "This was a fully custom and challenging build that tested my competence in electrical engineering, mechanical engineering, control systems, and computer science."...

"SDP/SI was gracious enough to provide me with the timing belts and pulleys I used in my custom drivebase (shown in the image above) so thanks to them! I also would not have been able to build this robot without the amazing engineering/manufacturing facilities at Georgia Southern University that have state of the art equipment (such as the waterjet and laser cutter I used) available to students."


Mike Bemiss,

Chemist, engineer, tinkerer, and gamer; Mike Bemiss, is building a small robot arm from scratch and controlling it with a Raspberry Pi. His vlog is really interesting and worth a look.

Go to

Solon Science Olympiad

On Behalf of Solon High School Science Olympiad, we would like to thank you for your generous donation towards our 25th annual invitational tournament this past February. This year, we hosted 72 teams from six states. With your sponsorship, our team was able to raise over $10,000 to provide students of all financial backgrounds the opportunity to explore their interests in STEM and successfully compete in Science Olympiad....

We are also pleased to inform you that our team placed second in the nation last month at the 2019 Science Olympiad National Tournament at Cornell University in Ithaca, New York. We qualified for the national tournament for the eighth time in the past ten years after placing first at the 2019 Ohio State Tournament in April. Your support made it possible for our students to afford their travel to both competitions. Additionally, your donations were used to purchase critical materials for our competition devices and provide our students with academic experiences in their areas of interest.

Thank you once again for your donation to our team. We hope you will consider returning as a sponsor for our 26th annual invitational tournament next year. Our team, school, and community greatly appreciate your continued support.

Cherese Fiorina (Head Coach, Solon High School Science Olympiad)
Nick Maurer (Assistant Coach, Solon High School Science Olympiad)

Voorheesville Praetorians Robotic Team 5964

The Voorheesville Praetorians robotic team 5964. Designatronics helped us by donating some parts to our team last year. We are getting ready to compete at Rensselaer Polytechnic Institute. – Joe McDonnell...

TROY, N.Y. — Hundreds of high school students will find themselves immersed in a challenging space-themed simulation as they compete for a slot in the FIRST World Championship and more than $80 million in scholarship funding. Rensselaer Polytechnic Institute will once again host the three-day New York Tech Valley FIRST Robotics Competition starting on March 7, 2019. Continue Reading

Industrial Technology (ITec) Club Robotics Team

Taken From: The Iowa State University 2048 ATMAE Robotics Competition, Technical Report.

The Industrial Technology (ITec) club’s robotics team placed first in the Robotics Competition overall while also receiving the Stephen Harris Cup. This was the first time that the ITec club Robotics team took first in this competition and only the second time in the history of the competition that an Iowa State team had brought home the competition title. The team is multidisciplinary and comprised of the following students: Ben Gibson, ITec; Nathaniel Hall, ABE; Cody Kapka, ABE; and Nathaniel Stewart, ITec. The team also received the Robotics Competition Peoples’ Choice Award....

SODA (Semi-automated Object Detection and Avoidance). SODA was the Iowa State University Industrial Technology Club’s entry for the 2018 ATMAE annual Robotics competition. The development of SODA utilized a wide variety of skills and tools. Nearly every part of the robot was modeled in CAD prior to construction, and a range of fabrication methods were used. We utilized CNC vertical mills, FDM 3D printers, a water-jet cutter, and a sheet metal brake in addition to drilling and tapping. Electronic fabrication work included soldering, prototype board construction, and terminal crimping. Software work included Arduino programming, firmware flashing, serial communication, Windows and Linux environments, and Robot Operating System development.

The motors are mounted in custom machined aluminum fixtures that hold not only the motors, but the rotary encoders. The motor fixtures are more complex than necessary, but were designed this way so that they would qualify as a final project for a manufacturing class. The wheel axle is mounted in a separate machined block. The axles, bearings, belts, and pulleys were donated by Stock Drive Products – Sterling Instrument.