The ECM-500 HD system provides a geared rotating spindle to mark around the circumference of large bulky products. Cylindrical products such couplings or fittings are set on the spindle tooling and rotated while the inkjet printer is triggered. Multiple options for spindle tooling are available or the customer may provide their own. Print head mounting can be done with fixed positioning, micro-slide adjustment or motor controlled adjustment. Rotation speed can be manual or tied to radius parameters. Full position and speed control for a family of products with bar code recall can be set up with our touch-screen PC and motorized slide options.