Specification :

QKA-series CNC pipe thread lathes were developed mainly for the turning of oil-field pipe threads. But now they are also used to the turning of pipe threads of various kinds, e.g. cylindrical and conical threads, threads connected continuously one another, and end-face threads as well, and they can also be used as universal CNC lathes for the turning of circumgyration bodies of various curving generatrices. These machine are suitable for verified work-pieces 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 ate ideal medium-type mechanical machining equipment.

Item unit QKA1226 QKA1235
Swing over bed mm 1000 1100
Swing over carriage mm 630 730
External diameter of pipes( manual chuck) mm $ 70-260 $ 114-340
External diameter of pipes( hydraulic chuck) mm $ 127-340
Maximum length of workpiece mm 1500/ 2000/ 3000 1500/ 2000/ 3000
Maximum turning length mm 1350/ 1850/ 2850 1350/ 1850/ 2850
Span of guideway mm 755 755
Spindle nose A2-15 A2-15
Step of Spindle speed( Three-phaseasyn-chronous motor) auto 4 gear steps, stepless speed change in the step. auto 4 gear steps, stepless speed change in the step.
Range of spindle speed( Three-phaseasyn-chronous motor) 6-400 5-320
Main motor power kw 18.5 18.5
Spindle bore mm 275 355
Chuck type( manual chuck)  manual 4 jaw $ 630  manual 4 jaw $ 800
Chuck type( hydraulic chuck) ² 3 jaw $ 760
Center height from bed mm 500 550
Min.feed increment of X-/ Z-axis mm 0.001/ 0.001 0.001/ 0.001
Rapid speeds of X-/ Z-axis mm/ min 3000/ 6000 3000/ 6000
Max.travel of x-axis mm 630 630
Tool-post working position Vertical 4-position¡ 300 Vertical 4-position¡ 300
Indexing time s 4 4
Indexing repeatility " mm 0.01 0.01
Section of tool shank mm ¡ 40 ¡ 40
Diameter of tailstock quill mm 160 160
Travel of tailstock quill mm 300 300
Taper hole of tailstock quill Morse 6 Morse 6
Workpiece accuracy IT6-IT7 IT6-IT7
Surface roughness ¼ m Ra1.6 Ra1.6
Acceptance conditions JB/ T8324.1-96 JB/ T8324.2-96 JB/ T8324.1-96 JB/ T8324.2-96
Machine mass kg 10000/ 12000/ 13000 10000/ 12000/ 13000
Length mm 4800/ 6300/ 8300 4800/ 6300/ 8300
Width mm 2460 2460
Height mm 2120 2120
 Standard ² Optional