Super accurate high performance skiving at peak of ideals High efficiency gear skiving reduces machining time to as much as 1/5 (compared to gear shaping) Proprietary technologies used to add lathe and drill to skiving machine for a multi-functional gear shaper Both mass production & multi-type-small-lot production Compact yet can be machining up to 450mm diameter part Hard-skiving achieves high-precision machining of hardened gears Interactive operation screen provides excellent man-machine interface

Reduces machining time to as much as 1/5 (compared to gear shaping)

Three jobs consolidated in one machine

Skiving machining center for Gears GMS450 achieves a high-efficiency gear skiving machine.
Plus, it also has lathe and drill functions that integrate jobs in this skiving gear shaping machine.

To achieve smart production lines by reducing floor space

Skiving machining center for Gears requires little space to improve gear production lines to be smart production lines that can handle a variety of production formats from multi-type small-lot production to high-volume production.

Proprietary technologies produce new design skiving machine

Upright machining center built with gantry-type column Skiving machine with table that rotates on B-axis

• New spindle designed for skiving
  Super-rigid spindle equipped with large diameter bearing and high-torque direct drive motor
• All axes have V-rail slides
  V-rail slides with superior rigidity and damping used on all sliding surfaces, including the tool spindle.
• X axis and B axis equipped with table clamp mechanism

Superior workability and operability

Machining application

Skiving cutter

Propose our skiving cutter and cutting conditions to match the various workpiece specifications and applications.

Features of NACHI cutters

• Analyzed cutting mechanism with the cutting tool design technology and gear cutting technology that we have developed. Improved precision of machining work and extended tool life.
• Established surface processing technology needed for skiving that produces better surfaces with optimized deposition process and design of coating components.
• Carbide skiving cutters are able to achieve hard skiving process after heat treatment.

Learn more Skiving cutter

Conbination with NACHI robots

NACHI robots combine with machining , washing, deburring, and inspection equipment to produce a fully automated process.

NACHI Robots product lineup

Main specification

Machining capacity	Max. workpiece diameter	mm	Ø450
	Max. machining module	—	m4.5
	Max. machining teeth width	mm	120
	Max. workpiece height	mm	250
	Gear cutting tool	—	Skiving cutter
Cutter spindle	Spindle taper hole (tool shank type)	—	7/24 Taper No.50 (BBT50)
	Max. RPM of spindle	min-1	3000
	Motor (30 min/continuous)	kw	26/22
Workpiece spindle	Max. RPM of spindle	min-1	1400
	Motor (30 min/continuous)	kw	26/22
Each unit traverse	Left – Right traverse (X-axis)	mm	700
	Forward – Back traverse (Y-axis)	mm	350
	Up - Down traverse (Z-axis)	mm	300
	Tool swivel angle (B-axis)	deg	±25
A.T.C.	Number of tool storage	piece	6
	Max. tool diameter	mm	Ø150
	Max. tool length	mm	250
	Tool selection method	—	Tool storage position fixed / random
NC device	Type	—	FANUC 31i-B
	Display	—	FANUC PANEL-i
Utilities	Overall power used	kVA	88
Dimensions of machine	Machine height	mm	2700
	Required floor space (width x depth)	mm	2500 x 3860
	Net machine weight (main body)	kg	22000
Options	Workpiece chuck External scale 22 piece ATC Hard machining package Workpiece handling by robots

Layout diagram

Product line-up for ring gear machining

GMS200 Main specification