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Help CenterCNC Oil Country Lathe QKA1212, (120mm, 190mm, 230mm, 260mm, 350mm)
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These lathes were developed mainly for the truning of oil-field pipe threads.They are suitatle ofr the turning of various kinds of pipe threads,andare also can be used as universal CNC lathes.
These CNC pipe thread lathes are controlled by semi-closed circle controlling systems.They are suitable for the turning of circumgyration bodies of various curving generatrixes,the turning distinguishability is 0.001mm.They can be used to the turning of cylindrical and conical threads,and threads connected continuously by them,and end-face threads as well,They have functions of automatic tool compensation,rough-turned piece circle,thread-cuttig circle,slotting circle,and absolute zero can be set at your will.These machines are suitable for varified workpieces machining in medium and small batches,and are of good flexibility,high efficiency,finishing up with good conformity,and are easy to program,simple to operate.So they are ideal medium-type mechanical machining equipment.
| Main specifications | QKA1212 | QKA1219 | QKA1226 | QKA1235 | |||
| Capacities | |||||||
| Cente height r from guideway | mm | 385 | 500 | 550 | |||
| Swing over bed | mm | 770 | 1000 | 1100 | |||
| Swing over carriage | mm | 480 | 630 | 730 | |||
| External diameter of pipes | Manual chuck | mm | Φ120 | Φ190 | Φ70-260 | Φ114-340 | |
| hydraulic chuck | mm | ||||||
| pneumatic chuck | mm | ||||||
| Max.length of workpiece | mm | 750 1000 1500 2000 3000 | 1500 3000 5000 | ||||
| Max.cutting length | mm | 550 800 1300 1800 2800 | 1300 2800 4800 | ||||
| Span of guideway | mm | 550 | 755 | ||||
| Spindle | |||||||
| Step of spindle speed | three-phase asyn-chronous motor | ,16 | ,8 | ||||
| variable frequency variable speed motor | , | , | |||||
| Range of spindle speed | three-phase asyn-chronous motor | 25800 | 90450 | ||||
| variable frequency variable speed motor | 6400 | 5320 | |||||
| Power of main motor | three-phase asyn-chronous motor | kW | 11 | ||||
| variable frequency variable speed motor | kW | 18.5 | |||||
| Diameter of spindle bore | mm | 130 | 200 | 275 | 355 | ||
| Chuck type | Manual chuck | 3-jaw Φ380 | 3-jaw Φ500 | 4-jaw Φ630 | 4-jaw Φ780 | ||
| hydraulic chuck | |||||||
| pneumatic chuck | |||||||
| Feed motion | |||||||
| Min.feed increament of X-/ Z-axis | mm | 0.001/0.001 | |||||
| Rapid speeds of X-/Z-axis | mm | 3000/6000 | |||||
| Max.travel of X-axis | mm | 390 | 520 | ||||
| Tool post | |||||||
| Turret type | V4 240 | V4 300 | |||||
| Size of tool shank | mm | 32 | 45 | ||||
| turret indexing time | s | 2.5 | 4 | ||||
| Indexing repeatability | mm | 0.01 | |||||
| Tailstock | |||||||
| Diameter of tailstock quill | mm | 100 | 160 | ||||
| Travel of tailstock quill | mm | 250 | 300 | ||||
| Taper hole of tailstock quill | morse | Morse 5# | morse 6# | ||||
| Accuracy and acceptance conditions | |||||||
| Workpiece accuracy | IT67 | ||||||
| Surface roughness | Ra1.6 | ||||||
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