TGK25/TGK35 CNC deep hole boring and scraping machine
Machine tool usage
● Rolling processing makes the roughness of the workpiece reach Ra0.4.
● Deep hole processing rolling technology is a kind of non-cutting processing, through plastic deformation, the inner hollow surface can reach the surface roughness required by the workpiece.
Increased advantages of rolling:
● Improve the surface roughness, the roughness can basically reach Ra≤0.4μm.
● Correct roundness, ellipticity can reach ≤0.03mm, coaxiality ≤0.06mm.
● Improve the surface hardness, eliminate the stress deformation, and increase the hardness by HV≥4°.
● There is a residual stress layer after processing. Improve fatigue strength by 30%.
● Improve the quality of the fit, reduce wear and extend the service life of the parts, but the processing cost of the parts is reduced.
Precision
● The surface roughness of workpiece boring≤Ra3.2μm.
● Roughness of workpiece rolling surface≤Ra0.4μm.
● Cylindricity of workpiece processing≤0.027/500mm.
● Workpiece processing roundness≤0.02/100mm.
The Main Technical Parameters
| The scope of work | TGK25 | TGK35 |
| Boring diameter range | Φ40～Φ250mm | Φ40～Φ250mm |
| Maximum boring depth | 1-9m | 1-9m |
| Workpiece clamping range | Φ60～Φ300mm | Φ60～Φ450mm |
| Spindle part |
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| Spindle center height | 350mm | 450mm |
| Boring bar box part |
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| Taper hole at the front end of the spindle | Φ100 1:20 | Φ100 1:20 |
| Speed range (stepless) | 30～1000r/min | 30～1000r/min |
| Feed part |
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| Speed range (stepless) | 5-1000mm/min | 30～1000r/min |
| Fast moving speed of pallet | 3m/min | 3m/min |
| Motor part |
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| Motor power of boring bar box | 60kW | 60kW |
| Hydraulic pump motor power | 1.5kW | 1.5kW |
| Fast-moving motor for top tensioner | 4 kW | 4 kW |
| Feed motor power | 11kW | 11kW |
| Cooling pump motor power | 7.5kWx2 | 7.5kWx3 |
| Other parts |
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| Rated pressure of cooling system | 2.5 MPa | 2.5 MPa |
| Cooling system flow | 200, 400L/min | 200, 400, 600L/min |
| Rated working pressure of hydraulic system | 6.3MPa | 6.3MPa |
| The maximum tightening force of the oil applicator | 60kN | 60kN |
| Magnetic separator flow rate | 800L/min | 800L/min |
| Pressure bag filter flow rate | 800L/min | 800L/min |
| Filtration precision | 50μm | 50μm |