Precision Manufacturing and Engineering Solutions

From concept development through full-scale production, SDP/SI partners with customers to deliver precision-engineered mechanical components and assemblies for demanding applications. With decades of manufacturing expertise, vertically integrated operations, and a strong focus on process optimization, we provide the technical support and production capabilities needed to help customers accelerate development, improve manufacturability, and scale with confidence.

Our team supports customers across aerospace and defense, medical, industrial, and advanced technology markets where precision, reliability, and consistency are critical.

Integrated Engineering and Manufacturing

Engineering and manufacturing operations are performed in-house, providing greater control over quality, lead times, and responsiveness throughout the production cycle. Early-stage collaboration with our engineering team helps streamline product designs, improve performance, reduce complexity, and optimize cost efficiency before production begins.

From prototype development to high-volume manufacturing, SDP/SI delivers comprehensive support at every stage of the product lifecycle.

• Precision components
• Custom gearboxes
• Complex machined parts
• Assembly of mechanical and electromechanical subassemblies

Precision CNC Machining and Gear Manufacturing

To ensure consistent quality and repeatability, SDP/SI continuously invests in advanced CNC equipment, tooling, and inspection technologies. Our Hicksville, NY manufacturing facility houses more than 180 machines, including:

• CNC Swiss Turning
• CNC Lathe, Mill-Turn
• CNC Milling and Machining Centers

Precision Gear Fabrication

• CNC Bevel Gear Cutting
• CNC Hobbing
• CNC Shaping
• Coniflex Bevel Gear Generators
• Rack Cutting

We machine a wide range of materials including stainless steel, aluminum, titanium, engineering plastics, brass, bronze, and alloy steels. NADCAP-approved and customer-approved finishing and surface treatment facilities are utilized to meet stringent industry requirements.

Engineering Development Support

SDP/SI engineers work closely with customers from the earliest stages of product development through production launch and ongoing manufacturing support. Backed by more than 75 years of experience in precision gearing and small mechanical component manufacturing, our engineering team provides practical guidance focused on improving performance, manufacturability, and cost efficiency.

Potential design enhancements may include:

• Reduced size and weight
• Simplified component geometry
• Improved manufacturability
• Enhanced system performance
• Lower overall production costs

Whether developing a new product or refining an existing design, our engineering team is ready to support your next project.

Standard Components and CAD Resources

SDP/SI offers a comprehensive selection of inch and metric small mechanical components for design engineers and OEMs. Engineers can quickly source standard components, request quotes, place orders, and download 3D CAD models through our online catalog.

For custom engineering and manufacturing support, contact our engineering team at (516) 328-3300.

Explore product specifications, CAD models, and online ordering at SDP/SI E-Store

Case Study: Aerospace Actuation System — Reducing Risk Through Integrated Manufacturing Partnership

Aerospace programs demand an uncompromising balance of precision, reliability, and speed to qualification. Yet even highly engineered systems can falter when design and manufacturing evolve in isolation. This case study follows an aerospace OEM developing a compact electromechanical actuation system, an effort that initially struggled under the weight of design-for-manufacturing gaps, but ultimately succeeded through partnership with SDP/SI and a system-level approach to design and production. Download Now

SDP/SI - Stock Drive Products/Sterling Instrument, a Designatronics company
250 Duffy Avenue, Hicksville, NY 11801
Phone: (516) 328-3300; (800) 819-8900
https://shop.sdp-si.com