Yama Seiki GLS-2000LYS CNC Turning Center – Year 2016
Year
2016
Make
Yama Seiki
Model
GLS-2000LYS
Description
CNC Lathe
Chuck Size
8″
Bar Capacity
2.5″
Swing
22.05″
Turning Diameter
15.35″
Spindle Speed
4,500 RPM
Control
Fanuc
Distance Between Centers
60″
Turret
12
Sub-Spindle
Yes
Chip Removal
Chip Conveyor
Features
Y Axis Included
Yama Seiki GLS-2000LYS CNC Turning Center – Technical Evaluation (Year 2016)
1. Technical Evaluation Overview
The Yama Seiki GLS-2000LYS is a CNC turning center manufactured in 2016, configured with a Y-axis and a sub-spindle, enabling multi-axis turning and milling operations in a single setup. Based strictly on the provided information, the machine features an 8″ chuck, 2.5″ bar capacity, and a maximum swing of 22.05″ with a maximum turning diameter of 15.35″.
The spindle is rated at 4,500 rpm, and the machine supports a distance between centers of 60″, indicating capability for longer shaft-type parts. Tooling is handled by a 12-station turret. Control is provided by a FANUC CNC system (exact model not specified). Chip management is supported by an integrated chip conveyor.
Critical parameters such as spindle motor power, Y-axis travel, sub-spindle speed/power, rapid traverse rates, and live tooling specifications are not provided and must be verified for a complete assessment.
2. What to Check Before Buying
Considering the configuration and missing details, inspection should focus on:
Mechanical and axes:
Condition and alignment of the main spindle and sub-spindle, including concentricity and synchronization during part transfer.
Verification of Y-axis function (travel, accuracy, rigidity), which is essential for off-center milling.
Assessment of guideways and ballscrews over the 60″ distance between centers, checking for wear and straightness.
Spindles and tooling:
Performance of the 4,500 rpm main spindle under load; confirm bearing condition and thermal stability.
Identification of live tooling capability (if present) and its drive specifications, which are not stated.
Turret indexing accuracy and clamping force across all 12 stations.
CNC and electrical system:
Identification of the exact FANUC control model, installed options (Y-axis, sub-spindle, synchronization), and parameter backups.
Review of alarm history and I/O health.
Chip handling and auxiliaries:
Functional test of the chip conveyor and coolant delivery (coolant pressure not specified).
3. Typical Industrial Applications
Based strictly on the stated envelope and configuration, the GLS-2000LYS is technically suitable for:
Complete machining of medium-size turned parts requiring Y-axis milling and sub-spindle part transfer.
Shaft-type components up to 60″ between centers.
Production environments seeking reduced setups through combined turning and milling operations.
Material types, achievable tolerances, and cycle performance cannot be confirmed from the provided data.
4. Common Risks in Used Machines
Typical risks for used CNC turning centers with Y-axis and sub-spindle include:
Spindle and sub-spindle wear, affecting transfer accuracy and surface finish.
Y-axis calibration drift, impacting milled feature accuracy.
Turret wear and live-tool drive issues (if equipped).
Documentation gaps, such as missing CNC backups or option lists.
5. Maintenance and Service Considerations
With no service history provided, maintenance considerations are limited to general technical points:
Regular inspection of spindle bearings, axis geometry, and lubrication systems is essential.
Turret mechanisms and any live tooling drives should be monitored for wear.
CNC parameters and machine data should be backed up prior to continued operation or relocation.
Any service or refurbishment planning should be based on on-site inspection and functional testing rather than assumptions.
Final Note:
The Yama Seiki GLS-2000LYS, as specified, is a capable CNC turning center with Y-axis and sub-spindle designed for process consolidation. While the provided information defines its core envelope and features, a complete technical evaluation requires verification of spindle power, Y-axis travel, live tooling specifications, and CNC configuration through direct inspection and testing.
