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This CK series heavy-duty flat bed CNC lathe with 755 wide guide rail is a universal heavy metal cutting machine tailored for factory workshop production teams and large component processing plants. Built for ultra-rigid rough turning and high-precision finish turning, the equipment handles oversized shaft and plate workpieces ranging from 1000 mm to 1600 mm swing diameter, with customizable center distance from 500 mm to 10000 mm.
Equipped with CE, ISO and SGS certification, the machine delivers stable dimensional accuracy under long-hour heavy cutting loads. Unlike standard light-duty turning equipment, this large-size CNC turning machine supports multi-process integrated machining: internal/external cylinder turning, conical surface cutting, complex rotary curved surface forming and multi-standard thread turning. Custom mechanical configurations are available to match unique workpiece drawing requirements from factory engineering teams.
The entire machine frame adopts integrated casting via resin-sand technology, forged with high-strength iron blanks. The monoblock bed eliminates assembly gaps, greatly boosting overall rigidity and anti-deformation performance. Even under 6-ton maximum workpiece load, the bed maintains stable geometric accuracy without deflection, extending long-term precision retention lifespan of the heavy-duty CNC lathe.
All guide rail surfaces receive ultrasonic frequency quenching treatment. High-frequency ultrasonic vibration uniformly heats metal surfaces, followed by precise cooling to refine internal metal microstructure. The finished guide rail features superior wear resistance, reducing surface abrasion during continuous carriage movement and preserving smooth sliding performance for years of mass production.
Turcite B low-friction wear-resistant material is pasted on contact areas between carriage and guide rail. It effectively lowers friction coefficient during X/Z axis rapid traversal, avoids crawling motion, protects both carriage and guide rail from abrasion, and stabilizes repeated positioning accuracy of the large shaft CNC lathe.
Our in-house technical team provides full tailor-made design services. Clients can adjust bed length, spindle power, turret stations and tailstock specifications fully according to production batch and workpiece dimension demands.
SPECIFICATION | UNIT | CK61100 | CK61125 | CK61140 | CK61160 | |
Capacity | Swing over bed | mm | 1000 | 1250 | 1400 | 1600 |
Swing over cross slide | mm | 610 | 850 | 1000 | 1200 | |
Spindle | Dstance between centers | mm | 500-10000 | 1500-10000 | 500-10000 | 1500-10000 |
Guideway width | mm | 755 | 755 | 755 | 755 | |
Max.load capacity | T | 6 | 6 | 6 | 6 | |
Spirdle bore | mm | 130 | 130 | 130 | 130 | |
Spirdle bore taper | Metric φ140/MT6 | Metric φ140/MT6 | Metric φ140/MT6 | Metric φ140/MT6 | ||
Spirde nose type | A2-15 | A2-15 | A2-1 | A2-15 | ||
Spirdle speed steps | 4 NF.4 steps/4 /HYD.4STEPS | 4 MF.4steps/4 /HYD.4STEPS | ||||
Spirdle speed range | rpm | 4-300 4-300 | 4-300 4-300 | |||
Chuck | mm | φ1000 Vφ10004-jaw manual | 1000 | |||
Turrct | Turrettool post | - | 4 NC turret 4 position | 4 NC turret4 position | ||
Taol shank size | mm | 40×40 | 40×40 | 40×40 | 40×40 | |
Feed | Yovis tayd | mm | 520 | 620 | 720 | 720 |
Zaxis trave | mm | 1250-9750 | 1250-9750 | 1250-9750 | 1250-9750 | |
Xaxis rapid traverse | mm/min | 4000 | 4000 | 4000 | 4000 | |
Zaxis rapid traverse | mmmin | 6000 | 6000 | 6000 | 6000 | |
Tailstock | Tailstock quilldiameter | mm | 160/260 | 160/φ260 | φ160/φ260 | 160/260 |
Tailstock qulltaper | MT6/80 | MT6/80 | MT6/80 | MT6/80 | ||
Tailstock quill travel | mm | 300 | 300 | 300 | 300 | |
Motor | Main spindlo motor | kW | 22/30/37 | 22/30/37 | 22/30/37 | 22/30/37 |
Coolant pump motor | kW | 0.25 | 0.25 | 0.25 | 0.25 | |
Dimension | Width x Height | mm | 2100×2100 | 2250×2300 | 2350×2450 | 2350×2600 |
Lengh | mm | 5000-14000 | 5000-14000 | 5000-14000 | 5000-14000 | |
Weight | Net wcight | T | 10-19 | 11-20 | 12-21 | 13-22 |
Please note: Machine bed length of heavy duty cnc lathe can customze according to real work demand. | ||||||
Perfect for processing large transmission shafts, hydraulic cylinder barrels and marine flange plates. The 6-ton maximum load capacity ensures stable rotation of oversized raw blanks, while high rigidity eliminates chatter marks during deep cutting.
Aerospace tapered connectors, spherical medical implant blanks and hydraulic valve bodies rely on this precision heavy CNC lathe for consistent taper angle and curved surface tolerance. The CNC control system supports complex custom tool paths for irregular rotary geometries.
Produce metric, imperial and special coarse/fine threads for construction anchor rods and heavy fasteners. Uniform spindle speed output guarantees stable thread pitch accuracy for mass structural part production.
Yes. The whole machine bed length can be customized from 5000 mm to 14000 mm based on actual maximum workpiece length demands.
We support Fanuc, Siemens and domestic mainstream CNC controllers; servo direct drive and C-axis turning-milling composite structures are optional upgrades.
It stably cuts carbon steel, alloy steel, cast iron and various non-ferrous metals, suitable for both rough stock removal and mirror finish precision turning.
