The RHG-4b, manufactured by Gamor, is a tapping machine that is integrated with a hydraulic tensioner and an external cooling and discharge chip conveyor. It has tapping head that is installed with a reduction gear. It also has a guide arm that has 4 slide bears in the SKF bearings.
Its cast iron table is integrated with T-slots and measures 1200 mm x 800 mm. Its hydraulic components are comprised of a lifting column frequency variator and 2 electric motors which are designed for speed regulation. The machine also has a tapping security system and a digital revolution display.
Furthermore, the RHG-4b shares the same features with RHG-M130 (M3-M130) but with various options for thread cutting in struts or identical intricate parts.