An extensive range of robust fittings and weatherproof products.
Connectivity solutions such as high brackets, busbars, and connector pins.
Connectors & structural components for cutouts, transformers, & substations.
Complex sensor housings & fracture-critical products.
Robust castings and assemblies for everyday appliances.
Finished components for commercial & residential hardware applications.
Precision metal stamped sensors, connectors and cast housings & covers.
Durable, precision products for high-pressure applications.
Handles, leveling pins, flow valves & button housings.
Custom housings to fully assembled commercial & industrial light fixtures.
Durable corrosion-resistant engineered castings and subassemblies.
Medical-grade parts for implants, housings, manifolds, and pumps.
Custom housings and covers for flow control, pressure valves & meters.
Durable yet lightweight custom metal housings.
Innovative precision metal stamped parts.
High-pressure liquid metal is pressed into a precision metal mold cavity, and then cooled & solidified under pressure.
Ideal for a wide range of applications, including automotive, agricultural, electronics, and medical.
Castings with complex shapes & inner cavities that are produced in a sand mold
Ideal for parts with complex shapes and inner cavities
A mold is filled with liquid metal using gravity and cooled and solidified in the mold to obtain a casting
Ideal for parts with complex shapes made with steel, aluminum or magnesium alloys
A process used to obtain a mold without a parting surface; creates parts with high dimensional & geometric accuracy
Ideal for near-net shaped parts with complex shapes and high precision requirements
Custom Tooling, Machining, Surface Finishing, Special Purpose Machine Design & Development
More than 80 presses convert metal sheets into custom parts
Ideal for parts for electronic connectors and microprocessor chips
A specialized CNC machine capable of producing extremely small, precise parts
Ideal for complex miniature screws, contact pins & micro-fasteners
Rapid Prototypes, Heat Treating, Automated Assembly
Learn more about our company milestones.
Learn more about our global manufacturing facilities.
See our company announcements and press releases.
Let us know how we can help create a solution for you
Download catalogs and key product guides.
Purposeful innovation – the continual improvement and innovation of custom-designed and precision-made products and solutions.
Sigma offers solutions for complex product characteristics and technical requirements.
U.S.-based supply chain management teams support our customers.
Sigma is a vertically integrated single-source solution provider.
Toggle switch covers are used to provide weatherproof protection for two outdoor switches.
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov.