High-Precision CT8 Oblique Y-Axis Turning Center: A Technical Overview
The demand for multifunctional, high-rigidity turning centers capable of complex and precise machining continues to grow in modern manufacturing. The CT8 Oblique Y-Axis Turning Center emerges as a technologically advanced solution, integrating high accuracy, high dynamic performance, and a compact footprint into a versatile 4-axis universal machining platform. It is ideally suited for both batch production and small-lot processing of precision shaft, disc, and complex contour components.
1. Machine Overview: Integrated 4-Axis Functionality
The CT8 is a 4-axis universal turning center equipped with live tooling and a C-axis, featuring a comprehensive standard package:
High-Power Main Spindle:
A2-8 spindle with AC motor, delivering 15/18.5 kW power and 268 Nm torque. Maximum speed reaches 4000 rpm, with full C-axis positioning and contouring control.
Versatile Turret:
12-station BMT65 power turret. All stations are capable of mounting live tools, enabling complete operations (turning, milling, drilling, tapping) in a single setup.
Sub-Spindle System:
Built-in sub-spindle (A2-6) with a maximum speed of 5000 rpm supports automatic part transfer for complete back-side machining and synchronized twin-spindle operations.
Oblique Y-Axis:
Features a frame-structured oblique Y-axis with ±50 mm travel, providing high rigidity for complex milling, eccentric, and off-center machining operations.
2. Core Technical Features
2.1 High-Rigidity Slant Bed and Guideway System
The machine utilizes a 45° inclined high-quality cast iron bed, offering excellent thermal stability and torsional resistance. All axes are equipped with 45 mm wide linear guideways. The Z-axis employs a 4-guideway design to prevent tailstock collision and enhance motion stability and machining precision.
2.2 Oblique Y-Axis Design
Unlike conventional turning centers, the CT8's oblique Y-axis significantly expands machining capabilities. It enables complex operations such as eccentric turning, contour milling, and angled features, making it a true multi-tasking machining center.
2.3 Advanced FANUC CNC System
Powered by the FANUC 0i-TF Plus CNC system with a 10.4" display, it supports 2GB external storage and EES (Execution from External Storage) functionality. The system offers high responsiveness (1.5 ms minimum block cycle time), supports multiple coordinate systems, and includes extensive canned cycles (roughing, threading, drilling, grooving), streamlining programming and operational efficiency.
2.4 Full Closed-Loop Measurement and High Accuracy
Each axis incorporates an absolute encoder measurement system, combined with pitch error compensation and backlash compensation. Positioning accuracy conforms to the VDI 3441 standard, achieving ≤6/8/12 µm for X/Y/Z axes and repeatability of ≤5/6/8 µm, meeting demands for high-precision part manufacturing.
3. Key Performance Specifications
Working Range:
Max. swing over bed 680 mm, recommended turning diameter 250 mm, bar capacity ø65 mm.
Spindle System:
Spindle through-hole 87 mm, hydraulic hollow clamping cylinder with clamping confirmation control.
Live Tools:
12 live tool stations, 4.5 kW rated power, max. 5000 rpm, standardized BMT65 interface.
Feed Drives:
Rapid traverse X/Z 24 m/min, Y 12 m/min.
Hydraulics & Coolant:
Hydraulic system pressure 55 bar, coolant tank capacity 200 L, includes chip conveyor and filtration.
Electrical & Environment:
Power supply 400 V ±10%, maximum installation altitude 1000 m, suitable for standard workshop conditions.
4. Design Details and User-Oriented Configuration
Safety & Operation:
Fully enclosed guard with large viewing window and sliding door ensures operator safety and excellent process visibility.
Lubrication & Maintenance:
Centralized automatic lubrication system for guideways and ball screws ensures long-term reliability with minimal maintenance.
Connectivity:
USB 2.0 ports and Ethernet interface facilitate easy program management and data transfer.
Standard Accessories:
Includes hydraulic 3-jaw chuck with jaw sets, BMT65 tool holder set, chip conveyor, signal lamp, and electrical cabinet heat exchanger, enabling immediate production readiness.
5. Conclusion: A Complete Solution for Demanding Machining Applications
The CT8 Oblique Y-Axis Turning Center, with its rigid slant bed construction, versatile Y-axis, high-performance guideways, intelligent FANUC CNC, and comprehensive standard package, presents a highly efficient, stable, and flexible solution for precision component machining. It is particularly advantageous for industries such as automotive, aerospace, medical devices, and precision instruments, where complex parts require high accuracy and reduced process cycle times.