C.R. Onsrud
Roller hold-down CNC router
C.R. Onsrud RH Series (Roller Hold Down) CNC routers provide the ultimate in flexibility for CNC routing, single sheet or stacked sheet, small part or large part, rollers engaged or disengaged, delivering the capability and flexibility of having multiple CNC machines for the cost (and footprint) of one. The rugged, fixed bridge design of the RH Series features 2 fully automated rollers on each side of the cutting spindle envelope, which engage the sheet material to maintain firm contact with the router’s table.

Product overview
Designed for Performance
The RH design makes this machine perfect for holding down warped stock, multiple stacked sheets, or when machining narrow, low surface area parts. Each roller offers full, independent control over regulating holding pressure, which serves to prevent premature wear and tear (which may occur on other brands) due to continuous slamming of rollers into the table and/or raw material. It is important to understand the rollers are designed to supplement (not replace) the standard vacuum holding, creating optimal performance and maximum speed without moving parts.
Multi-Sheet, Nested-based Capabilities
The RH Series is an established CNC workhorse in the industry, and C.R. Onsrud continues to add the options and improvements customers need to keep outperforming the competition. This machine is at the top of its class, and truly one to be reckoned with for its extremely powerful multi-sheet, nested-base capabilities.
Accuracy that Delivers
In addition to the superior cutting speed, and accuracy it delivers, the rigid fixed bridge CNC machine can become the backbone of a totally automated production line, offering even greater efficiencies to your operation. Material handling, part identification, pusher sweeper, debris collection, automated infeed/outfeed tables, robotic arm loading and more are all components which deliver time-savings and world-class production power when mated to the RH Series by C.R. Onsrud.
Specifications
| Model | 145G18R | 241G18R | 333G18R | 98RH18 |
|---|---|---|---|---|
| Number of Axes | 3 | 3 | 3 | 3 |
| Table Size | 48” X 96” | (2X) 96″ X 48” | (2X) 96″ X 48” | 48″ X 96″ |
| Z Clearance | 4” | 4” | 4” | 4” |
| X-Axis Travel | 145” | 241” | 325” | 132″ |
| Y-Axis Travel | 60” | 60” | 60” | 78″ |
| Z-Axis Travel | 11” | 11” | 11” | 11” |
| Approx. Footprint | 16’ X 8’ | 24’ X 8’ | 32’ X 8’ | 30’ X 12’ |
| Machining Speed | 2500 ipm | 2500 ipm | 2500 ipm | 3600 ipm |
| X & Y Rapid Traverse | 3000 ipm | 3000 ipm | 3000 ipm | 4000 ipm |
| Standard Spindle | 18HP 24,000 rpm | 18HP 24,000 rpm | 18HP 24,000 rpm | 18HP 24,000 rpm |
| Tool Shank | HSK 63F | HSK 63F | HSK 63F | HSK 63F |
| Standard Tool Capacity | 12 | 12 | 12 | 12 |
| Standard Vacuum Zones | 2 | 2 | 3 | 2 |
See it run
Roller Hold Down CNC Router with Robot
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