The Ronen® Four spindle nut tapping machine can tap four nuts simultaneously. Processing workshops often choose to purchase this equipment from trusted suppliers because it can reduce the tapping time by 70%. Just place the nuts in the feeder, set the depth, and the machine will operate automatically.
When the Four spindle nut tapping machine is in operation, the raw materials are first placed into the feeding tray. They will be automatically sorted to four workstations, and after the tapping process is completed, the finished products will be automatically discharged.
The nut tapping machine is a dedicated machining center specifically designed for the mass production of internal threads (i.e., tapping) on nuts or other similar-shaped workpieces. Its notable feature is the integration of four independent tapping spindles into a single universal spindle head. The machine can perform tapping operations on four separate workpieces simultaneously within a single processing cycle.
The working process of a Four spindle nut tapping machine typically requires an operator or an automatic feeder to insert four raw materials into the dedicated fixtures on the indexing table. Then, the indexing table positions the raw materials beneath the spindle, and the spindle simultaneously engages to cut the threads, thereby increasing the output by four times compared to a single-spindle machine.
The mechanical structure of the Four spindle nut tapping machine is constructed around a rigid frame, which supports a central indexing mechanism. This mechanism is usually a rotating dial or cam-driven worktable used to fix four workpiece fixtures. The four main axes are driven by a central motor through a gearbox to ensure synchronous rotational speed, or by separate servo motors for more flexible control.
The feature of the Four spindle nut tapping machine is its excellent spindle synchronization and stable tapping performance. The four spindles are driven by the same motor (or by independent motors but with parameters linked together), and there will be no deviation in rotational speed. Each spindle has overload protection. For example, if it encounters hard material and cannot be tapped, the spindle will automatically stop without breaking the tap. The taps of the four spindles can be replaced separately.
| Specification | Nut Max.Out Side Diameter | Speed(pcs/min) | Main Motor(HP) | Oil Capacity | Size W*L*H/mm | Weight(kg) |
| RNNT 11B M3~M6 | 16 | 360~320 | 1HP-4 | 120 | 1100*1300*1400 | 710 |
| RNNT 14B M6~M10 | 19 | 260~200 | 2HP-4 | 120 | 1100*1300*1400 | 820 |
| RNNT 19B M8~M12 | 22 | 240~180 | 3HP-4 | 150 |
1100*1300*1400 |
1060 |
| RNNT 24B M14~M16 | 33 | 220~120 | 3HP-4 | 340 | 1650*1700*1670 | 1600 |
| RNNT 32B M18~M22 | 44 | 130~80 | 5HP-4 | 620 | 1800*2050*1950 | 2300 |
