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CNC Skiving Roller Burnishing Machine for Cylinder Tube

The processing property of the CNC skiving roller burnishing machine:
Machine bed is manufactured by the high quality cast iron, with strong rigidity and strong stability.
Boring bar box spindle is driven by 70KW ac servo motor, boring bar box spindle is driven by servo motor, wide speed range, large output torque, feed system uses 48NM ac servo motor driven double rack transmission, smooth feeding, long service life and can adapt to the needs of all kinds of deep hole machining process, workpiece loading card adopts tight hydraulic cylinder, stable and reliable, easy handling, electrical system adopts centralized control CNC system, can be interactive, graphical display, flexible operation, safe and reliable.
In production it is suitable for mass production can also be suitable for small batch production.

Technical parameters:
| Item | Parameter |
Working scope | Boring hole diameter range | Dia38-250mm |
Workpiece length | 3000mm | |
Boring bar box spindle parameters | Center height | > 350mm |
Leading end of cone hole boring bar box Spindle | Dia85mm 1:20 | |
The spindle speed range | 50-1000r/min Ac frequency conversion stepless speed regulation) | |
Output shaft torque | ≥1500N.m | |
Feed parameters | Feed speed range | 5-2000mm/min(stepless) |
Plate moving fast | 3m/min | |
Machining accuracy
| Locate the length | 0-6m |
Workpiece surface roughness of boring | ≤Ra3.2μm | |
Workpiece surface roughness of rolling | ≤Ra0.4μm | |
Workpiece machining straightness | ≤0.05/500 mm | |
Workpiece machining roundness | ≤0.036/200mm | |
Motor capacity
| Boring bar motor power | 60KW Ac servo motor |
Feed motor | 48NM Ac servo motor | |
Hydraulic pump station motor | 3KW Ac motor | |
Output cooling pump motor power | 11KW one set, 7.5KW one set | |
Automatic chip removal motor power | 1.5KW one set | |
Magnetic separator motor power | 0.75KW one set | |
Centralized lubrication motor | 0.75KW one set | |
Others | Head of the biggest pre-tightening force for the workpiece | 50KN |
The cooling system flow | 600L/min | |
Cooling system rated pressure | 0.36Mpa | |
Magnetic separator flow | 600L/min |

General machine layout and main parts structural detail:
1. Machine components
The machine tool is composed by the bed body, head of a bed frame, feeding oiler, oiler feeding system, boring bar, boring bar drag plate feeding system, the work support, boring bar support, work calipers, chip removal filter system, hydraulic system, cooling system, CNC electrical system, automatic lubrication system and other major parts.
2. Boring bar box
Boring rod box is box structure, drive by 70 KW ac servo motor through the synchronous belt, rated speed of motor is 1500r / min, top speed is 4500 r/min, the motor is fixed on the upper of the boring bar box, and drive with the boring bar box through the synchronous belt, good driving rigidity, good vibration resistance. Select 70 KW ac servo motor of Germany Siemens.
3. Boring bar support
The machine tool has three boring bar brackets, and boring bar support plays a part in increasing the stiffness of the boring bar, reducing the vibration and stability of the boring bar, make it more smoothly when turns.
Boring bar bracket adopts the centripetal ball bearing support, to ensure not only the accuracy of axial but also the accuracy of radial, using the rotation of the bearing sets makes small rotational resistance and steady running. Manual lubrication pump is mounted on the boring bar bracket, to regularly provide lubrication for rotating assembly.

4. Workpiece calipers
The machine tool is equipped with two hydraulic workpiece calipers, the purpose of the workpiece calipers is to load and unload workpieces conveniently, at the same time to guarantee the stability of workpiece when processing.

5. Work support
The machine tool is equipped with two work supports, bracket with V type rack can adjust the height from top to bottom, in order to suit the diameters of different work-pieces, head frame to loosen the work-piece when unloading work-pieces, and the work-pieces will fall into the center of the V type roller.

6.Cooling system
The cooling system is on the side of the machine tool, the main parts are the fuel tank, pump station, oil pipe, automatic chip removal machine and magnetic separator. The roles of the coolant are cooling and removing chips.
CNC skiving roller burnishing machine


Guanlu Precision has been engaged in the Deep Hole Processing Machine Tools manufacturing and exporting since 2009. Our machines are running well in more than 20 countries all over the world( including France, Singapore and etc).
We have built very good and long-term business relationships with our customers. And they are satisfied with our machine’s high performance very much. too.

Our experienced engineering design team can work out the best solutions as per the customer’s processing requires. We have one well-trained fitters team and qualified inspectors for machine assembling quality controlling.

The after sales team consists of 1-2 machinists/engineer and 1 translator(Chinese vs English), can supply on-site machine commissioning, maintaining and operators training services all over the world.
Now for more details, welcome send an inquiry below!
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