● 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.

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
Spindle center height	350mm	450mm
Boring bar box part
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
Speed ​​range (stepless)	5-1000mm/min	30～1000r/min
Fast moving speed of pallet	3m/min	3m/min
Motor part
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
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

● 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.