Electric roll grooving machine, used to form grooves on the ends of steel pipes so they can be joined using grooved couplings (Victaulic-style piping systems).
Major components
1. Upper Roll Shaft Assembly
* Holds the drive roller that rotates the pipe.
2. Lower Hydraulic/Feed Assembly
* Applies pressure to form the groove.
3. Feed Handwheel (Silver Star Knob)
* Adjusts groove depth.
4. Electric Motor Housing
* Black rectangular enclosure on the right.
5. Power Switch
* Green and red push buttons.
6. Speed/Direction Control Knob
* Located beside the switch.
7. Pipe Support Rails
* Support longer pipes during grooving.
Pipe Size & Groove Depth
1–11⁄4 in 1.8–2.0 mm
11⁄2–2 in 2.1–2.4 mm
21⁄2–6 in 2.3–2.8 mm
8 in 2.8–3.3 mm