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QK-440

QK-440

CNC Oil Country Lathe



Model: QK-440
Spindle bore: 440mm

Pipe threading: 270-430mm
Swing over bed: 1000mm
Bed width: 755mm

Spindle speed: 8-205r/min
CNC system: SIEMENS 808D

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Product Description

CNC Oil Country Lathe



Model: QK-440
Spindle bore: 440mm

Pipe threading: 270-430mm
Swing over bed: 1000mm
Bed width: 755mm

Spindle speed: 8-205r/min
CNC system: SIEMENS 808D



Technical Specification


Specification

Unit

QK-440

QK-520

Capacity




Swing over bed

mm

1000

1200

Swing over cross slide

mm

610

710

Distance between centers

mm

1500/3000

1500/3000

Pipe threading range

mm

270-430

330-510

Bed width

mm

755

755

Max. load capacity

kg

6000

6000

Spindle




Spindle bore

mm

440

520

Spindle speed steps

steps

stepless (3shifts)

stepless (3shifts)

Spindle speed

rpm

8-205

8-205

Chuck size

mm

1000

1000

Chuck type (electric)

-

4-jaw

4-jaw

Turret




Turret type (electric)

-

V4

V4

Tool shank size

mm

40x40

50x50

Feed




X-axis travel

mm

520

520

Z-axis travel

mm

1250

1250

X-axis rapid feed speed

mm/min

4000

4000

Z-axis rapid feed speed

mm/min

4000

4000

Tailstock




Tailstock quill diameter

mm

140

140

Tailstock quill taper

-

MT6

MT6

Tailstock quill travel

mm

300

300

Others




Main motor power

kw

22

22

Coolant motor power

kw

0.125

0.125

Machine dimensions

mm

5000/6500x2200x2200

5000/6500x2200x2200

Machine weight

kg

13000/14000

15000/16000






Product Details


  • Oil country lathe is mainly developed for the turning of oil field pipe thread, it is not only suitable for all kinds of pipe thread turning, but also can be used for ordinary CNC lathe, suitable for processing complex shape of the shaft, sets, disk parts, such as turning inside and outside cylindrical surface, conical surface, circular surface, end face, chamfer. Especially for multi-species, small batch of turning processing, process adaptability, high processing efficiency, low scrap rate, good product consistency, easy programming, simple operation, reducing the technical requirements of workers, it is the ideal medium mechanical processing equipment.

  • Pipe threading lathe adopt high quality cast iron (HT300) one molding casting, bed width (755mm), loading capacity 6000kg. After the second aging treatment,  it has the feature of stable performance, good rigidity, anti-vibration ability.

  • Spindle bore diameter is 440/520mm for choice, spindle is two-point supported by precision heavy load bearing, rotating stability and smoothly.

  • Spindle driven by 22kw large torque frequency main motor, torque of spindle is big, heavy-powerful cutting.

  • Spindle speed change is semi-automatic, manual 3 gear shift, stepless speed within segment controlled by the S code, achieving stepless speed and constant linear cutting.

  • Complete with front 4-jaw chuck and rear 4-jaw chuck comes standard, according to users’ need different types of manual, pneumatic and hydraulic chuck can be chosen.

  • Complete with double electric 4-jaw chuck comes standard.

  • Standard complete with 4-station turret, it is free lifting and index quickly and easily; the vertical 6-station and horizontal 6/8-station and other electric turret can be chosen.

  • The X-direction and Z-direction use the precision grinding grade ball screw, ensured a high processing accuracy, positioning accuracy and accuracy of retention.

  • Automatic forced circulation lubrication make the transmission system is flexible and effectively cool.

  • CNC system uses the internationally renowned FANUC, SIEMENS or China GSK AC servo control system.

  • The lathe machine adopts semi-closed protection, equipped with emergency stop safety button, when the lathe machine suddenly encountered unexpected power failure or self-failure, due to the special design of the control circuit, it can be self-protection, to ensure that the lathe machine and personnel safety.

  • Before delivery all lathe machines should be tested by British RENISHAW laser detector for dynamic accuracy detection and compensation, so the lathe machine has a high positioning accuracy and repeat positioning accuracy.






Standard Accessories


  • SIEMENS 80D CNC system

  • 4-jaw chuck (front-rear)

  • 4-station electric tool-post

  • Work lamp

  • Pilot lamp

  • Cooling system

  • Semi-closed guard

  • Electronic handwheel

  • Dead center

  • Oil gun

  • Automatic lubrication pump

  • Manual moving tailstock

  • Tools & tool-box

  • Leveling wedge & bolts

  • Operation manual (English)




Optional Accessories


  • FANUC/GSK CNC system

  • Penumatic chuck

  • Other tool-post

  • Chip conveyor

  • Live center

  • Air conditioner

  • Rear bracket for long piece



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