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Excelsior Inc.

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Rockford, Illinois, US

About Excelsior Inc.

Excelsior is a manufacturer of custom gaskets, washers, seals, insulators, packings, shims, protective covers and other precision parts from both synthetic materials and thin gauge metals.

We first opened our doors in 1916 in Rockford, Illinois. Throughout the years, we have been able to combine the sophistication required to deal with large international OEM manufacturers while retaining the scale and personal service valued by companies of all sizes. Whether it is a standard part for a household consumer product or proprietary piece for an aerospace company, our team will work with you to design, prototype and manufacture parts that meet the exact specifications of your project.

A lot has changed since 1916 but what has not changed is our value proposition! We offer economical parts backed by:

  • An expansive material stock
  • A high level of technical competence and rapid prototyping
  • The right processes for the specific component and material
  • Flexible delivery/stocking programs
  • AS9100 Aerospace quality management system

Diversity Certificates

Small business

Our Services (2)


Fabrication and Materials Processing Services

Price on request

Proper selection of the right process or combination of processes based on the material and part complexity enables the lowest cost highest quality result. This is a core competency at Excelsior.

Excelsior has the capability to fabricate 2 dimensional synthetic parts from .100" diameter to 4 ft. square. Whether it be a simple shape or a sophisticated configuration with tight tolerances, in high volume or low volume, we have the manufacturing capability to produce a quality economical part.


  • Cut thickness of material
  • Cut width of material
  • Coil material
  • Apply adhesives

High volume cutting

  • Rotary die cutting
  • Hydraulic presses
  • Punch presses

Medium and low volume cutting

  • Manual presses
  • Programmable travel head presses
  • From roll or sheet stock

Large parts

  • Minimal set-up
  • Large parts - 36" x 54"
  • Low tool cost

Waterjet / Laser cutting

  • Minimal set-up
  • High accuracy/finish
  • Ideal for prototypes

Micro-Vu vision system

  • Accurate to .00005"
  • 27 x 27 bed
  • Used for all first and last piece inspection


Engineering and Fabrication

Price on request

Engineering & Devices Services

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Steve Zarembski

Director Marketing & Sales

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