The decision problem in servo stepper motion control is usually not the difference between servo and stepper technology; it's whether the hardware you can actually mount and wire fits your axis count, torque, and feedback plan. For a two-axis lathe retrofit, the Yaskawa 2 axis AC servo kit gives you a concrete answer: two 850W Yaskawa AC servo motors, two LG-built drives, and the couplings to connect them to 25mm ballscrews, all for a listed USD 599.00.
Quick verdict
If you need X and Z axis servo control on a lathe, this is a well-scoped takeout package. The motors are Japanese-made Yaskawa units, the drives were built by LG Industrial under license from Yaskawa, and the kit was removed working from a Hyundai KIT30 CNC lathe. You get a brake-equipped X motor and a non-brake Z motor, both rated at 850W, 1500 rpm, and 5.4 Nm torque. That's a coherent two-axis foundation for a retrofit rather than a random assortment of parts.
Who it suits
This kit suits a builder who is comfortable integrating used servo hardware into an existing machine. It is not a new-in-box system, and the listing makes that clear with removed working in the title. If your project is specifically about the X and Z slide axes, the two motors and drives line up with your needs. The X motor includes a brake; the Z motor does not, so the two channels are not identical.
What stands out from the listed details
- Both servo motors are 850W, 200V class, rated at 1500 rpm and 5.4 Nm torque.
- The X motor uses a 5000 PPR incremental encoder; the Z motor uses a 6000 PPR incremental encoder.
- The drives are LG Industrial units built under license from Yaskawa, so the package keeps a Yaskawa-oriented servo family even though the drives have their own LG lineage.
- Two stainless-steel leaf couplings for 25mm ballscrews are included, which removes one sourcing step during the mechanical part of the retrofit.
That combination matters for a machine-tool retrofit because torque and encoder resolution are central to how the axes behave. With 5.4 Nm available from both motors, you have a realistic servo-level torque figure to compare against your machine's existing axis requirements.
Meaningful trade-offs
The trade-off is that this is used takeout hardware. You are buying components that were removed from a running machine, so the value depends on your ability to wire and integrate them with the rest of your machine. The title says MOTORS + DRIVES, which means the scope of the kit is the motor-and-drive pair for the X and Z axes. The realistic question for you is how those components will connect into the control path you already have in mind.
Bottom line
The Yaskawa 2 axis AC servo kit earns consideration if you are assembling a two-axis lathe servo retrofit and you want a matched motor-and-drive set with useful mechanical extras. The brake on the X motor, the 5000/6000 PPR encoder split, and the included leaf couplings all give you concrete details to plan around. The used takeout condition is the main thing to respect: bring your own integration skill, and this $599.00 kit can be a solid foundation for X and Z only.
Yaskawa 2 axis AC servo kit, MOTORS + DRIVES, LATHE X and Z, removed working
For your two-axis lathe retrofit, this kit gives you two matched slide-axis servo channels with a clear mechanical fit: two 850W Yaskawa AC servo motors, LG-built Yaskawa-licensed drives, and stainless-steel leaf couplings for 25mm ballscrews. The X motor carries a brake while the Z motor is the non-brake version, so the two axes are not identical in behavior. The main limitation is the used takeout nature of the hardware. You can orient your build around the listed USD 599.00 and the two-axis scope, but the integration effort sits on your side. If your retrofit is only X and Z, this is a focused starting point; if you need additional servo axes, this kit does not cover them.
