S.I. Howard Glass CO, Inc.
S.I. Howard Glass CO, Inc.
379 Southwest Cutoff,
Worcester, MA 01064

Phone: (508) 753-8146
Fax: 1.781.395.7247
Email: Quotes@howardglass.com
Website: www.sihowardglassc.com
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Since 1912, S.I. Howard Glass Company has been delivering high quality glass products and precision glass fabrication services to customers in a wide range of industries. As a 3rd generation, family owned business, we specialize in tight tolerance fabrication, and precision cutting, machining, and edging of glass products for numerous high tech applications. Howard Glass's success is built on a commitment to quality. This is exemplified by the number of long term customer relationships, some of which are as long as 50 years. This customer base includes industries such as advanced optics, aerospace, medical/biomedical, electronics, display and glass manufacturing.

Specializing in flat glass in thicknesses from 0.1 mm to 16 mm, Howard Glass's advanced glass fabrication capabilities can cut and machine glass to tolerances of ±0.002". These precision fabrication services are augmented by our ability to work with a variety of glass materials. From optical filter shapes to signal mirrors, Howard Glass can provide advanced glass products with typical lead times of 2 to 4 weeks.

To learn more about our glass fabrication capabilities, see the table below or contact Howard Glass directly.
Unit of Measure

Specifications

Fabrication Processes

 N/A Cutting Machining Edging Heat Strengthening Surface Grinding Lapping and Polishing Sandblasting and Frosting Dicing Cleaning

Cutting

 N/A Scribe and Break Precision Computer Numerical Control (CNC) Milling

Machining

 N/A Computer Numerical Control (CNC) Processing Shapes Notching Drilling

Machine Edging

 N/A Bevels Corner Dubbing Pencil

Glass Types

 N/A B270 D263 Water White Borosilicate Soda Lime Borofloat Low Iron Float Glass 94.5% R Front Surface Mirrors A/R Coated (2 Sides) Front Surface Mirror Rear Surface Mirror Robax Eagle XG 0211 Microsheet AF-32 Alkali Free Schott Filters Hoya Filters

Shapes

 N/A Any Flat Shape

Thickness

 N/A 0.1 to 16 mm

Tolerance (±)

 N/A 0.002 in0.05 mm

Surface Tolerance

 N/A 80/50 Scratch Dig 60/40 Scratch Dig Or Better if Polished

Inspection

 N/A Magnifiers Verniers Micrometers Optical Comparators Laser Micrometers

Production Volume

 N/A Low Volume Mid Volume High Volume

Lead Times

 N/A 2 to 4 weeksJob-by-Job Basis

Certifications

 N/A ISO 9001:2015

Additional Information

Industry Focus

 N/A Optics Electronics Medical/Biomedical Glass Manufacturing Aerospace Wholesale Technical Instruments Manufacturing Display Defense Military

Intended Application

 N/A Optical Filter Parts Flat Glass Parts

File Formats

 N/A AutoCAD GibbsCAM