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JNS Industries, Inc. The Precision Instrument Manufacturing Company
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CNC Machining Laser Marking & Laser Welding Wire EDM Metal Stamping Induction & Torch Brazing Bead Blasting Surface Grinding Metal Polishing Secondary Services
Surface Grinding Services 

Surface Grinding Services

JNS Industries offers surface grinding for surface finishes ranging from 8-16 RMS, with 4 RMS available upon request.

We use a combination of automatic and manual surface grinders to achieve high volume production with expert craftsmanship.

Our Ontario, CA facility can receive outside parts, such as dies, that require maintenance and/or re-work projects.

Surface Grinding Capabilities · Design, Engineering & Quality Control Process

Surface Grinding Capabilities

Maximum Part Dimensions

10" x 20"

Grinding Tolerance


Surface Grinding Equipment

Kent Hydraulic Auto Surface Grinder 10-20 ADH
Kent Hydraulic Auto Surface Grinder 8-18 ADH
Kent Surface Grinder 6-18 ADH
Harrig Surface Grinder 6-18 ADH
Boyer Schultz Surface Grinder 6-12 ADH
Supermax Surface Grinder 6-12 ADH

Support Equipment

10 HP Milwaukee Horizontal Milling Machine
10 HP Kerney Trekker Horizontal Milling Machine
Bridgeport Vertical Milling Machine
2 ½" X 60" Burr King Variable Speed Belt Sanders
Baldo 1 ½" HP High Speed Buffers
Media Blast Glass Bead Blasting Cabinet
Kent 10"x20" Hydraulic Surface Grinders
6" x 12" Boyer Schults Surface Grinder
6" x 12" Harig Surface Grinder
Vertical and Horizontal Band Saws and Drill Presses

Industries Served


Design, Engineering & Quality Control Process

Research & Development

Concept based on customer design contraints
Reverse Engineering
3D Modeling
CAD to CAM for rapid prototyping

Drawing Conversions

Converting customer supplied electronic data (blueprint specifications) into dfx.iges file program formats for CNC equipment

Design/CAM Software

Feature Mill / Delcam

Inspection Equipment

Deltronic comparator
Deltronic pin gauges
Gauge blocks
Surface plates
Standard inspection equipment: micrometers, calipers