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Tube End Notching Machines for Tube Mills & Processors

Hopper-fed hydraulic machines that notch both ends of cut-to-length tube at 1,000 to 2,400 parts per hour — a secondary operation sized to keep pace with mill output. Up to 2-3/8" OD, round or square. Designed and built in the USA since 1995.

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Tube Mill Secondary Operations

Notch Both Ends Before the Tube Leaves the Building

Tube mills and processors add value by shipping tube that's ready to assemble — cut to length and end-notched so the customer welds instead of fits. The bottleneck is rate: a mill cuts thousands of lengths a shift, and a hand or hole-saw notcher can't follow.

Innovo's H237DN-D and H237DN2-D are hopper-fed, hydraulic double-notch machines built for exactly that job. Bundles of cut tube go into the hopper; each cycle notches both walls of both ends; finished parts come out at 1,000 to 2,400 per hour depending on model. The tooling is built in the same shop as the machine, so a notch profile change is a tooling set, not a new machine.

Both ends, both walls, every cycle
Hopper-fed — operator loads bundles, not tubes
Up to 2" standard (2-3/8" OD × .154" wall), round or square
Offline cell standard; in-line integration as a custom build

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Innovo H237DN2-D dual-tube hopper-fed tube end notching machine for tube mills — 2,200 to 2,400 parts per hour

H237DN Series for End Notching

Pick the Rate, Then the Machine

All three share the same capacity and double-notch action. The difference is how the tube gets to the tooling.

Model	Feed	Per Cycle	Rate	Tube / Pipe	Best Fit
H237DN	Manual load	Both walls of the tube	Operator paced	2-3/8" OD × .154"	Low volume, frequent changeovers
H237DN-D	Hopper	Both walls, both ends	1,000–1,200 / hr	2-3/8" OD × .154"	Single-mill secondary cell
H237DN2-D	Hopper, 2 tubes	Both walls, both ends, two tubes	2,200–2,400 / hr	2-3/8" OD × .154"	High-volume mill output

Rates are for the standard notch tooling. Larger tube, special profiles, or in-line integration are quoted as a custom machine build.

On Your Floor

Three Ways an End Notcher Fits a Mill

/ 01

Offline Cell

Cut-to-length bundles move from the mill to the notching cell. One operator loads the hopper and unloads finished parts. This is the standard configuration and the fastest to install.

/ 02

Kitted Length Runs

Run a length, change the tooling set for the next notch profile, run the next length. Tooling sets are built here, so adding a profile doesn't mean another machine.

/ 03

In-Line (Custom)

For a dedicated product, Innovo can engineer feed and discharge to sit downstream of the cutoff. Quoted as a custom build around your mill's speed and handling.

Why Innovo

Built by the Shop That Builds the Tooling

0130+ Years

02Built in the USA

03Machine + Tooling In-House

04Run-Off Approval Before Shipment

Frequently Asked

End Notching for Tube Mills, Answered

What is a tube end notching machine?

A tube end notching machine cuts a notch into one or both ends of a cut-to-length tube so the tube fits against another tube, a post, or a flat surface for welding or assembly. Innovo's H237DN series uses a hydraulic double-notch action that notches both walls of the tube in a single cycle.

Can a notching machine keep up with a tube mill?

Innovo's hopper-fed H237DN-D notches both ends of a tube at 1,000 to 1,200 parts per hour, and the dual-tube H237DN2-D notches both ends of two tubes per cycle at 2,200 to 2,400 parts per hour. Both are typically run as an offline cell fed from bundles of cut-to-length tube; in-line integration downstream of a mill cutoff is handled as a custom machine build.

What tube sizes can be end notched?

Every H237DN model accepts tubing or pipe up to 2 inch standard — 2-3/8 inch OD with a .154 inch wall — in round or square sections. Larger sizes and special profiles are quoted as custom builds.

Does the machine need an operator?

The H237DN-D and H237DN2-D are hopper-fed, so the operator loads bundles into the hopper and unloads finished parts rather than handling each tube. The manually loaded H237DN is operator paced and suited to lower volumes or frequent changeovers.

What does Innovo need to quote an end notching machine?

Two numbers get you a quote: the tube size (OD, wall, and shape) and the parts per hour you need. A print of the notch, or a sample part, lets Innovo confirm the tooling.