ECK6516AL Oval Turning Machine
The machine tool adopts a vertical Z-axis layout. On the left side of the X-axis slide, a rotary turret, comb-type tool holder, butterfly ring groove dedicated tool holder, etc., can be configured according to customer requirements. A patented "linear servo tool post", a direct-drive product, is configured on the right side of the X-axis slide.
Mainly used for machining piston irregular outer circles, precision cutting ring grooves, ring groove chamfering, and precision turning of the top surface.
The machine tool's built-in software can edit various irregular outer circles required by the piston (including standard ellipses, superimposed eccentric circles, eccentric ellipses, rotating ellipses, or discrete data fitting, etc.).
The machine tool provides a robot interface and can be equipped with an automated unit according to customer requirements.
- Technical Parameter
- Describe
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- Commodity name: ECK6516AL Oval Turning Machine
Serial Number Item Unit ECK 6516AL 1 Piston Diameter mm Φ60~Φ160 2 Piston Length mm 60~160 3 Spindle Type A2-6 bearing spindle 4 Spindle Accuracy mm 0.003 5 Spindle Speed rpm 50~1750 6 Linear Servo Tool Post Flat linear servo tool post system EJX1260A 7 Numerical Control System SIIMENS 828D 8 Linear Motor Stroke mm 6 9 Linear Motor Repeat Positioning Accuracy mm 0.0003 10 Maximum Workpiece Ovality (Diameter) mm 4.0 11 Maximum Workpiece Roundness (Diameter) mm 4.0 12 Machining Roughness μm Ra0.8 13 X-axis Drive Mode Servo drive closed-loop control 14 Process Capability Index ΦD±0.075mm CmK≥1.67 15 Main Machine (Length × Width × Height) mm 2000×1500×2500 16 Net Weight of Main Machine kg 5000 17 Total Power Kw 30 -
Main Machine Configurations
1. Basic ComponentsThe machine's base, slide, spindle box, and other basic components are made using high-strength casting technology, resulting in a stable internal microstructure. The casting structure has undergone machine dynamics analysis and finite element analysis to optimize its geometry and ensure high rigidity. The wide and solid machine base, with its full-support load design, adheres to advanced material mechanics design principles, ensuring load capacity during machining.
2. High-Precision Spindle UnitUtilizes a Taiwan high-precision bearing rolling spindle A2-6, configured with a 1PH8133 spindle servo motor, offering high precision, long lifespan, and easy maintenance.
3. Spindle Rotary EncoderThe spindle coaxially mounts a Heidenhain or Renishaw rotary encoder, providing a TTL signal to the linear servo tool holder's dedicated driver for the spindle angle signal. Coaxial rotary encoder installation ensures high positioning accuracy and effectively improves the outer diameter machining accuracy of non-circular parts.
4. Linear AxesBoth the Z and X axes use high-precision ball screw pairs and imported high-precision linear rolling guides. The Z-axis uses imported high-precision 45mm roller linear guides, and the X-axis uses imported high-precision 35mm roller linear guides. The ball screw adopts a pre-tensioned assembly process, significantly increasing transmission rigidity and eliminating thermal deformation during high-speed movement, thus ensuring the machine's positioning accuracy, repeatability, and stable machining accuracy. A high-precision linear scale on the Z-axis provides the Z-axis position signal to the linear servo tool holder's dedicated driver.
5. Linear Servo Tool Holder(1) Employs the flat linear servo tool holder EJX1260A developed by YiPai, which has reached internationally advanced levels. This tool holder boasts extremely high dynamic accuracy, dynamic stiffness, and frequency response. (2) The single-knife linear servo tool holder used in the tool holder is a core component of this machine tool, with a repeat positioning accuracy of up to 0.0003mm.
6. Numerical Control (NC) and Electrical Control Systems

(1) Uses the internationally advanced Siemens 828D numerical control system, which is simple to operate and highly reliable. (2) The wiring in the electrical cabinet complies with national electrical safety standards, ensuring that the control system is not affected by external interference during operation. An air conditioner is used to quickly exhaust hot air from the electrical control box, maintaining a constant temperature within the box, allowing the control system to operate stably for extended periods.
7. Machine Software
(1) The "Non-circular Part Surface Data Processing Software" and "Non-circular Machining Control Software" can edit and control various irregularly shaped outer circles required for non-circular part machining, including standard ellipses, superimposed eccentric circles, eccentric ellipses, rotating ellipses, or discrete data fitting, etc. The interface is clear, user-friendly, easy to understand, and simple to operate. Personnel with basic computer skills can quickly master it.
(2) Non-circular part surface data input uses a chart interface for intuitive and convenient data input. Cross-sectional shape data is displayed using polar coordinates, providing a clear and concise visual representation.
(3) After data input, the software automatically displays the profile curve after calculation, facilitating verification and enhancing reliability.
(4) The machining software parameters are easy to input, the human-machine interface is user-friendly, and the machining status process is monitored and displayed throughout.
8. Lubrication System
High-efficiency automatic lubrication system: Guide lubrication uses a volumetric dispenser with oil injection, providing a fixed amount of oil to the guides, reducing oil waste, and preventing environmental pollution.
9. Tailstock
A fixed tailstock is used, with tailstock-to-spindle coaxiality less than 0.005mm, ensuring stability and reliability. Pneumatic/hydraulic/servo tailstocks can be configured according to customer needs.
10. OthersThe machine tool has a small footprint, increasing factory space efficiency. A large-angle back chip removal design is used, combined with powerful cutting water flushing, preventing chip residue. The chip removal device is simple, environmentally friendly, practical, and reliable.