1、Process Introduction | What can CNC lathes solve?
High roundness/concentricity: spindle runout ≤ 0.003 mm, complete inner and outer circles, end faces, and grooves in one clamping, concentricity ≤ 0.01 mm Complex rotary profile: X-Z two axis+Y-axis module, capable of turning polygons, eccentric axes, and non-circular surfaces High precision thread: encoder 0.001 °, metric/imperial/modulus/radial pitch thread cumulative error ≤ 0.02 mm/25 mm Hard car replacement grinding: CBN blade HRC>62 quenched parts Ra ≤ 0.4 µ m, saving secondary grinding Large scale unmanned: bar feeding machine+automatic feeding machine+feeder, 24-hour continuous operation, monthly production of 300000 pieces
2、Capabilities
| Item | Specification |
|---|---|
| Maximum Swing Diameter | 600 mm (Horizontal) / 500 mm (Vertical) |
| Maximum Turning Length | 1000 mm (Horizontal) / 700 mm (Vertical) |
| Bar Feeder Capacity | Φ5-80 mm, 3m length |
| Machining Accuracy | IT6-IT7, Roundness ≤0.003 mm, Surface Ra≤0.4 μm |
| Material Hardness | Soft Materials - HRC62 (Hard Turning) |
| Batch Capacity | 1-100,000 pieces/batch, Changeover<15 min |
3、Our Equipment
Doosan PUMA 2600Y
8-inch chuck, Y-axis ± 50 mm, with power turret 12 positions
Car milling composite, completing car milling and drilling in one go, reducing secondary clamping
Mazak QT-200MS
Dual spindle+dual turret, front/back processing without manual flipping
Bar material machine with a diameter of 65 mm, suitable for large quantities of small shafts
Hardinge T51SP SUPER-PRECISION
0.1 µ m X-axis grating, with a spindle runout of 0.001 mm
Specializing in ultra precision turning of bearing seats and spindle sleeves
Star SB-20R
Swiss type walking machine, 7-axis linkage, slender shaft within Φ 20 mm
Complete turning, milling, side drilling, and tapping in one clamping operation, with a length to diameter ratio of 20:1
4、CNC Turning Case Studies | Turning Cases
Material: 42CrMo4 quenched and tempered HB 280
Size: Φ 35 × 220 mm, coaxiality 0.01 mm
Features: Outer circle+tool groove+thread M24 × 1.5+flat position
Solution: PUMA 2600Y one-time turning milling, hard turning CBN blade
Result: Roundness 0.003 mm, cumulative thread error 0.015 mm, monthly production of 50000 pieces
Material: 7075-T6 aluminum
Size: Φ 80 × 60 mm, wall thickness 1.2 mm
Difficulty: Thin wall deformation, inner hole tolerance H7
Solution: QT-200MS dual spindle, low clamping force+vacuum chuck
Result: Inner hole roundness of 0.005 mm, batch of 100000 pieces without deformation
Material: 316LVM stainless steel
Size: Φ 4 × 50 mm, length to diameter ratio of 12:1
Solution: Star SB-20R walking machine, 7-axis turning milling+side drilling transverse hole
Result: Surface Ra ≤ 0.2 µ m, no polishing required, directly passivated packaging
5、 Cutting Tools and Automation
Sandvik CoroTurn HP high-pressure cooling tool holder, reliable chip breaking, iron chip length<30 mm
Ceramic/PCBN/CVD diamond blade, HRC62 hard car, replacing external grinding
Automatic bar feeding machine+feeder+online measurement, 24-hour unmanned operation
QR code laser marking: part number+material furnace number for each batch, scan the code for traceability
6、 Quality and Certification
ISO 2768-f Precision Tolerance Standard
ISO 6789 Thread Accuracy Testing
Three coordinate measurement of the first piece of each batch+online measurement of the batch outer diameter, with data automatically uploaded to MES
Surface roughness meter+contour meter+roundness meter, Ra ≤ 0.4 µ m actual measurement report attached
AddressNo. 66 Xingpu Road, Lujia Town,Kunshan City, Factory Buildings 3 and 4 
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