At Onsrud, "Fixed Bridge" means cast iron. It also means the spindle travels the stationary bridge along the width of the tables while the tables pass underneath the bridge along their short dimension. This design (like our moving gantry design) only uses half of the floor space that a typical "Tubular Fixed Gantry" design would use. Its design is extremely efficient, shuttling the twin tables for continuous production and 100% cutting time. With this design, the CNC's table can be loaded and off-loaded without interrupting the cutting and production that is occurring on the other table. Its heavier and thicker cast iron frame tends to naturally absorb or dampen any cutting vibrations.

Simply put, cast iron just has a better ability to absorb and dampen cutting vibrations, while steel will tend to amplify and transmit these oscillations to the rest of the frame. When you are cutting man-made materials most of the time, a heavy, tubular steel frame like our Panel Pro Series is acceptable. But, if you intend to cut primarily solid wood or non-ferrous metals, which creates significantly more vibrations, then you will definitely want the additional dampening ability of a cast iron frame, such as the Onsrud "Super Duty" Series. You'll quickly find that the cast iron frame design will not only contribute to the overall weight, mass, and rigidity of the machine, but will also promote faster feed rates, better finishes, longer tool life and less maintenance. A cast iron frame design will usually cut much deeper per pass and machine much faster while maintaining a better finish. It will simply out-produce all other designs and make more money for you in the process. Take a look at the most expensive and productive model offered by any "high-end" CNC router manufacturer. It will almost always use the same cast iron, Twin Table, Fixed Frame design as the C.R. Onsrud "Super-Duty" series routers.

Standard Features

Full 2 Year Warranty

Factory Provided 24/7/365 After Hours Emergency Tech Support

Factory Provided Onsite Machine Installation and Training

Factory Provided Advanced Technical & Applications Support

Factory Provided In Depth Remote Online Diagnostics

4-Pole, reversible, 24,000 RPM High Torque Spindle

HSK-63F Spindle Taper and Tool Holders, with 1 inch (25mm) collet capacity

Over 14 Inches of Z-Axis Clearance & 11 inches of Z-Axis stroke

Finite Element Analysis used Extensively in the Engineering Process

Thermal Heat Treated, Stress Relieved, & Normalized One-Piece Steel Machine Base

Cast-Iron Fixed Bridge & Cast-Iron Vertical Columns, Increases Weight, Mass, & Rigidity

Std. 12 Position, Aggregate Ready, Dynamic Automatic Rotary Tool Changer

Twin Tables Can Operate Locked Together or Independently for Pendulum Processing

Compact Design Saves Valuable Shop Floor Space

Intelligent Design Allows for Easy and Loading and Unloading

Efficient and Effective Integrated Dust Tranistion that Only Requires a 8 inch Dust Hose

C.R. Onsrud High-Flow Universal Vacuum Table System with Low Vacuum Sensing

Independently Controlled Vacuum Zones for Each Table

Comes Equiped with Choice of Flow Through or Dedicated Spoil Board

Onsrud B&R Handheld CNC Controller with VNC PC Front Link (Other Controls Available)

4-Port Ethernet Connection, USB, and Serial Connectivity, for Easy Network Integration

Full 3D capability with Helical Interpolation

And many more options or accessories available

Model Number	72C	96C	98C	122C	146C
Number of Axes	3 or 4
Table Size*	74in x 48in	96in x 48in	98in x 61in	122in x 61in	146in x 61in
Approx. Machine Footprint	10ft x 10ft	10ft x 13ft	10ft x 13ft	10ft x 15ft	10ft x 17ft
Z Clearance*	14in Standard*
X- Axis Travel	49in		61in
Y-Axis Travel	74in	96in	98in	122in	148in
Z-Axis Travel*	11in Standard*
Machining Speed	3400ipm
X&Y Rapid Traverse	4800ipm
Number of Spindles	1 standard
Standard Spindle	18HP; 4-Pole; 24,000rpm
Tool Shank	HSK 63F
Standard Tool Capacity	12
Vacuum Zones	2 standard (1 per table)				3 standard

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