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Manufacturer Profile: You Ji Machines

Posted by Anne Winslow on Dec 4, 2014 3:54:00 PM
YouJi_LogoTaiwanese manufacturer You Ji isn’t quite a household name the United States, but their reputation for quality and value is growing among users of their heavy-duty precision machinery.  The company manufactures horizontal and vertical lathes, boring and milling machines, and special purpose machinery.  

A Bit of History

You Ji was established in Taiwan in 1977 and developed their first mid-sized CNC vertical lathe in 1991.  Soon they began exporting to global markets, expanded their operations, and partnered with distributors in the United States.  In the early 2000s, the company’s vertical lathes and vertical boring mills gained popularity for their value as compared to higher-priced models from Japan, while their accuracy allowed them to be used for precision work in the aircraft and military sectors.  YouJi expanded its production capacity in 2012 to meet increased demand, and continues to develop innovative products today.

Vertical Turret LatheYouJi Vertical Lathe 2000 ATC+C  w/ Live Milling

You Ji's vertical turret lathe (also called a vertical boring machine or vertical boring mill) is able to handle even the most demanding high-precision and heavy-cutting jobs due its stability, rigidity, and quality craftsmanship.  The vertical design allows for easier loading of large, heavy parts, and gravity helps hold them in place and ensure contact with the chuck during cutting.  The gearbox is constructed to reduce vibration and heat exchange to the spindle, which further increases accuracy. Crossed roller bearings can support heavy loads, and the huge 1-piece ram is made out of high grade steel for stability.

MMI has several You Ji vertical boring mills for sale as of 2014. All are ATC models fitted with an ergonomic disc-type automatic tool changer and Fanuc controls.

The YouJi 2000 ATC+C is the largest machine available with a 90-inch max turning diameter, and 78-inch max turning height.  The most versatile feature of the machine is the C-axis table with live milling.  The magazine holds up to 16 tools, making this a true multitasking machine.  Manufactured in 2008, it is equipped with 4 Turning Tool Holders, 2 Meters, Fanuc 18iTB Control, 78.74" Dia. T-Slotted Table With 4-Face Plate Jaws, 16-Position Automatic Tool Changer, ZF Dual Speed Gearbox For Table & Live Milling, High Pressure Coolant Thru-Spindle, 4-Turning Tool Holders, Chip Conveyor, 100 HP Table Motor.


Two 1600 ATC machines are available, one of which is a vertical turret lathe with live milling and C axis.  Manufactured in 2011, it is equipped with  4-jaw Chuck, 8 Square Blocks for 1.25" Holders, 6 Round Bars for 1" Holders, 2" x 2" Bore Bar, High Pressure 300 PSI Coolant through Spindle, 20 HP Live Tool Spindle, Reinshaw Tool Presetter, and Renishaw Probe.

The second 1600 ATC was manufactured in 2007 but has low hours. It comes equipped with 4-jaw Chuck, 8 X Square Blocks 1.25" Holders, 6 X Round Bars for 1" Holders, 3" x 2" Bore Bar, and 1x 2.5" Bore Bar.  Both of the 1600-ATC lathes have a 70 inch max cutting diameter and 47 inch max cutting height, and can accommodate work pieces up to 8000 kg (17,637 lbs.).

Finally, the 1200 ATC + C is a CNC vertical turret lathe built in 2012. It features live tooling on a 20 HP spindle, C axis table, and a 16 station disc-type Automatic Tool Changer.  The 1200 series can accommodate pieces up to 5000 kg (11,000 lbs.) and has a 53 inch max cutting diameter and a 47 inch max cutting height.

If you are interested in purchasing one of these machines, please contact us or register at the website.

  Contact MMI

You-Ji makes many vertical turret lathes. Some of the most popular models are listed below. Please visit the YouJi website for more information on each of these models.

YV 320A

YV 320 AR/AL


YV 1000ATC


VTL 2000 ATC -2R

VTS 1200 ATC
VTS 1600 ATC +C

VTH 3000 ATC+C-II-2R
VTH 4000ATC +C
VTH 6000 ATC