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JNS Industries, Inc. The Precision Instrument Manufacturing Company
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CNC Machining Services 

CNC Machining Services

JNS Industries specializes in CNC milling, turning and screw machining to produce high precision medical, dental and surgical parts. Our Ontario, CA facility houses 3- and 4-axis CNC milling centers with auto tool changers and 2-axis CNC lathes with bar feeder equipment that reduce downtime for increased production. We commonly machine a variety of stainless steel from billets, forgings and bar stock.

Each CNC machining center is directly wired to the computer which is equipped with CAM software such as Feature cam. The geometry is converted into the tool path and is directly downloaded to the machines to avoid any human error. The machining centers and software are capable of generating G codes to perform either 2D or 3D machining.

For quicker delivery, customers can supply geometry in DXF, DWG, ProE, Solidwork or STL that expedite the programming of the machining centers.


Medical Tools

CNC Machining Capabilities · Design, Engineering & Quality Control Process

CNC Machining Capabilities


Titanium 6-4
Stainless steel alloys, including: 13-8, 17-4, 410, 416, 418,420, 440C, 440A

CNC Milling

Cincinnatti Arrow Vertical Milling Center: 3-axis, 22 tool magazine, auto tool changer
Bridgeport TCG Vertical Milling Center: 3-axis, 22 tools magazine, auto tool changer
Doosan 3016LD Vertical Milling Center: 4-axis, 22 tools magazine, auto tool changer
Bridgeport Interact: 3-axis, without tool changer

CNC Turning

Daewoo Linx Turning Center: 2-axis with 12 tool turret

Swiss Screw Machining

8-axis milling-turning screw machine
1/2" diameter bar feeder capacity
1 1/2" diameter capacity without bar feeder

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

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