Core Application Scenarios
The Shenyang CA6250A lathe is an upgraded enhanced model derived from the classic CA6250 series by Shenyang Machine Tool, a century-old leader in China’s machine tool industry. Based on the proven heavy-duty performance of its predecessor, it optimizes key configurations such as spindle precision, tool change efficiency, and load-bearing capacity, making it more suitable for processing medium to large-sized, high-precision, and heavy-duty rotating workpieces. It has become a core processing equipment in small and medium-sized enterprises, heavy machinery manufacturing plants, power generation equipment workshops, and large-scale maintenance bases.
Medium to Large-Sized Precision Heavy Parts Processing: With a maximum swing diameter of 500mm and an optional spindle bore of 130mm, the CA6250A excels at turning heavy shafts, large-diameter flanges (up to Φ500mm), thick-walled sleeves (wall thickness ≥60mm), and large discs. These components are widely used in construction machinery (excavator main shafts), power generation equipment (turbine accessories), and shipbuilding (propeller connectors). It can efficiently process high-hardness and high-strength materials like HRC35 alloy steel and titanium alloy, achieving dimensional tolerance ±0.01mm and surface roughness Ra ≤1.2μm, fully meeting the precision requirements of heavy-duty core parts.
High-Efficiency Thread Machining: Equipped with an ultra-precision ground lead screw and a multi-stage hardened gear transmission system, the lathe can accurately process metric, inch, trapezoidal, buttress, and triangular threads with large pitches (up to 24mm). It is particularly suitable for manufacturing large bolts, nuts, and threaded sleeves for heavy-duty connectors in mining equipment and bridge structures, ensuring tight thread fit, strong load-bearing capacity, and no loosening during long-term use.
Small to Medium Batch Production with High Efficiency: The 11kW high-efficiency energy-saving main motor provides strong and stable cutting torque, while the 6-way hydraulic tool post realizes fast tool change (tool change time ≤3 seconds), reducing auxiliary processing time by 70% compared to manual tool posts. This combination enables the lathe to adapt to both single-piece trial production of customized parts and small to medium batch production of standardized heavy parts, significantly improving production efficiency and meeting the flexible scheduling needs of enterprises.
Heavy Equipment Maintenance and Overhaul: In industries such as metallurgy, mining, and port machinery, the CA6250A plays an irreplaceable role in maintenance work. It can repair worn parts like large rollers, heavy gear sleeves, and hydraulic cylinders, and fabricate high-precision replacement parts according to samples or drawings. Its strong load-bearing capacity and stable processing performance ensure that the repaired equipment can restore its original working accuracy, minimizing downtime and economic losses for enterprises.
Batch Advantages of Equipment
Century-Brand Credibility and Mature Quality: Shenyang Machine Tool has accumulated rich experience in manufacturing heavy-duty lathes for over 100 years, and the CA6250A is a market-verified upgraded model. It has undergone strict load tests and durability tests, with an annual failure rate of ≤0.2%, far lower than the industry average. Meanwhile, its spare parts are available globally, solving the after-sales concerns of international customers.
Enhanced Heavy-Duty Structure with Superior Rigidity: The lathe adopts a reinforced integral cast iron bed, which undergoes three times of stress relief treatment (natural aging + artificial aging + vibration aging) to completely eliminate internal stress and avoid deformation during long-term use. The widened guideways (width 350mm) and reinforced spindle box structure enhance the overall rigidity and vibration damping performance. Even during heavy cutting (cutting depth up to 15mm, cutting speed up to 80m/min), the lathe remains stable without obvious vibration, ensuring consistent processing accuracy.
Upgraded Configuration for Higher Precision and Efficiency: Compared with the basic CA6250 model, the CA6250A is equipped with an ultra-precision ground lead screw and high-precision double-row tapered roller bearings, which improve the rotation accuracy of the spindle and the transmission accuracy of the feed system. The automatic forced lubrication system can deliver lubricating oil to key components such as guideways and spindle bearings at fixed time and quantity, reducing wear and extending the service life of the lathe by 40%. The optional frequency conversion control system allows stepless speed regulation, adapting to more processing scenarios.
User-Friendly Design and Low Operation Cost: The lathe adopts an ergonomic operation panel, with clearly marked buttons, smooth handwheels, and an optional digital display device, which is convenient for operators to accurately adjust parameters and reduce operational errors. The modular design of key components (spindle box, feed box) simplifies maintenance procedures, and the widely available spare parts reduce maintenance costs. As a used lathe, it only costs 30%-50% of the new machine, but can provide equivalent or even better processing performance, bringing high cost-effectiveness to enterprises.