The H237DN series of hydraulic double-notch machines notches both walls of the tube every cycle — from a proven manually loaded unit to a hopper-fed dual-tube system running 2,200–2,400 parts per hour. Designed and built by Innovo Corporation in the USA since 1995.
Three configurations, one proven platform. Every H237DN accepts tubing or pipe up to 2" standard (2-3/8" OD × .154" wall) and notches both walls of the tube per cycle. Pick the feed system that matches your production rate.
Notches both walls of the tube per cycle. Manually loaded — the proven, flexible entry point into automated tube and pipe notching.
Notches both walls of both ends of the tube per cycle. Hopper-fed system for continuous, high-output tube and pipe notching.
Notches both walls of both ends of two tubes per cycle. Hopper-fed system engineered for maximum tube and pipe notching throughput.
Three things decide it: your tube or pipe spec, your target parts per hour, and whether you notch one end or both. Here's the series side by side.
| Specification | H237DN | H237DN-D | H237DN2-D |
|---|---|---|---|
| Feed System | Manually Loaded | Hopper Fed | Hopper Fed · 2 Tubes |
| Notching Action | Both Walls / Cycle | Both Walls · Both Ends | Both Walls · Both Ends · 2 Tubes |
| Tube / Pipe Capacity | 2-3/8" OD × .154" Wall | 2-3/8" OD × .154" Wall | 2-3/8" OD × .154" Wall |
| Output Rate | Operator Paced | 1,000–1,200 PPH | 2,200–2,400 PPH |
| Best For | Flexible / lower-volume runs | Continuous single-line production | Maximum throughput |
Every H237DN is designed, fabricated, and assembled by Innovo Corporation in Elk Grove Village, Illinois. The same in-house tool and die capability that builds the machine builds your notching tooling — so the machine, the tooling, and the die are engineered together.
Send your tube size and target parts per hour — we'll match you to the right H237DN model and quote it.