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Streamlining the Production Process with Phillips Opto

← You Ji Machinery
You Ji — Vertical Turning

VLS Series

Vertical turret lathes with 12-tool automatic tool changers, engineered for precision machining of large-diameter, heavy workpieces.

You Ji VLS-2000 ATC vertical turning lathe
Series Overview

Heavy-Duty Vertical Turning for Large-Diameter Parts


The You Ji VLS Series brings heavy-duty vertical turning capacity to shops machining large-diameter, heavy workpieces — the rings, housings, and flanged components common to aerospace, energy, oil and gas, marine, and heavy equipment manufacturing. Built on Meehanite cast iron construction with box ways throughout, the VLS delivers the rigidity and vibration dampening that long, heavy cutting cycles demand, protecting both accuracy and tool life.

The vertical column and cross rail are engineered to resist radial and axial cutting forces alike, holding precision across the full machining envelope. High-torque spindle motors sustain heavy roughing and deep cuts at low spindle speeds, making the VLS well suited to hard metals and high-volume stock removal.

Configuration flexibility is a defining strength of the platform. The series is available in single or twin ram head designs, with automatic tool changers in turret or magazine styles. An optional C-axis with live tooling consolidates milling, drilling, and tapping into the same setup as your turning operations. Phillips and You Ji can further tailor the machine to your application — from table size and spindle power to full turnkey integration with robotic load/unload and process monitoring.

At a Glance

  • 98.4″ maximum swing and turning diameter
  • 22,000 lb. spindle load capacity
  • Dual 50 HP spindle motors (100 HP combined)
  • 12-position automatic tool changer, #50 taper
  • Single or twin ram head configurations
  • Optional C-axis with 20 HP live tooling
  • Meehanite cast iron construction with box ways
  • Custom and turnkey configurations available
Why the VLS

Engineered for Demanding Turning



Rigid Meehanite Construction

Meehanite cast iron and box ways absorb cutting forces and dampen vibration, sustaining accuracy and extending tool life through prolonged heavy cutting.


High-Torque Spindle Power

Twin 50 HP spindle motors deliver the low-RPM torque needed for heavy roughing, deep cutting, and aggressive stock removal in hard metals.


12-Tool Automatic Tool Changer

An umbrella-style ATC with #50 taper tooling and 110 lb. single-tool capacity keeps large-part cycles running without manual intervention.


Mill/Turn in One Setup

Optional C-axis and 20 HP live tooling add milling, drilling, and tapping to the turning envelope — fewer setups, tighter positional relationships.


Single or Twin Ram Designs

Choose the ram configuration that matches your cycle-time and process goals, with cross rail travel programmable in 200 mm steps via M-code.


Built to Your Application

Table sizes, spindle power, automation integration, and turnkey engineering — the VLS platform is customizable to fit the part, not the other way around.

Technical Data

VLS Series Specifications


Capacity
Max Swing (in.)98.4
Max Turning Diameter (in.)98.4
Max Cross Travel (X Axis, in.)-35.4; +53.1
Max Longitudinal Travel (Z Axis, in.)37.4
Max Cross Rail Travel (in.) — programmable in 200 mm steps via M-code45.2
Ram Distance to Table, Ram Retracted (max/min, in.)82.6 / 37.4
Manual Chuck79″ 4-Jaw Independent
Spindle Load (lbs.)22,000
Main Spindle
Spindle Motors50 HP × 2 (100 HP)
Spindle RPM2–200
Spindle Bearing Diameter (in.)44.5 OD / 35.5 ID
Spindle Torque (ft./lbs.)41,143
Automatic Tool Changer
ATC Tool Positions12
ATC TypeUmbrella / Electric
ATC Tool Mounting#50 Taper
OD Tool Shank Size (in.)1.25
ID Tool Shank Size (in.)2.5
ATC Tool Change Time30 Seconds
Maximum Single Tool Weight (lbs.)110
Maximum Magazine Capacity (lbs.)800
Axes & Accuracy
Z Axis Ballscrew Diameter63 mm (2.48″) × 10 Pitch
X Axis Ballscrew Diameter63 mm (2.48″) × 10 Pitch
Ballscrew TypeClass 3 Double Nut
Ballscrew Mounting TypePre-loaded, Double Anchored
X-Z Servo Motor (HP)X=9, Z=9
Rapid Traverse Rate X, Z (IPM)394, 394
Cutting Feed Rate (IPM)0.01–197
Positioning Accuracy±.0003″ Full Stroke
Repeatability±.0002″
Live Tooling & C-Axis (Optional)
Live Spindle Motor (HP)20
Live Spindle Drive System2-Speed Planetary Gearbox
Live Spindle RPM2–2,400
Tool Shank TypeBT-50
C Axis Drive SystemDual Pinion Tandem Drive
C Axis Minimum Increment.001°
C Axis Position Accuracy±10 Arc Seconds
C Axis Repeatability±5 Arc Seconds

Specifications shown for the VLS-2000 ATC configuration and subject to change. Additional VLS models and custom configurations are available — contact Phillips to discuss your application.

Get Connected

Talk with a Phillips You Ji Specialist


Evaluating the VLS Series for your parts? Tell us about your workpiece sizes, materials, and production goals, and a Phillips Engineered Products specialist will follow up to discuss configuration options, tooling, and turnkey integration.

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Ask Jason