TK7220B Boring Machine
- Automotive Engine Cylinder Block Processing: Specializes in precision boring of engine cylinder holes and cylinder liners for cars, tractors and construction machinery. The 500mm boring depth meets the processing needs of medium and large engine cylinder blocks, and the fast centering device ensures consistent accuracy of batch cylinder holes.
- Large Hydraulic Component Boring: Processes high-precision piston holes, cylinder holes and oil holes for large hydraulic cylinders, hydraulic valves and heavy-duty pneumatic actuators. The extended worktable travel and high load capacity adapt to the processing of large hydraulic components, ensuring the sealing performance and motion accuracy of the components.
- Heavy-Duty Mechanical Box Parts Machining: Bores bearing holes and positioning holes for large reducer housings, gearbox casings and pump bodies. The high spindle runout accuracy and stable feed system ensure the coaxiality and position tolerance of multi-hole systems, meeting the assembly requirements of heavy-duty transmission components.
- Precision Repair of Engine Components: Performs reboring and precision repair of worn cylinder holes and damaged bearing holes for used engine blocks. The electric-hydraulic control and digital display function can accurately restore the size and roundness of the holes, reducing the cost of replacing new components.
- Customized Machining of Large-Size Precision Parts: Undertakes customized boring of large-size precision holes such as mechanical brackets, large-scale equipment shells and metal structural parts. The combination of long travel, deep boring depth and high load capacity balances processing efficiency and precision, suitable for medium and large-scale machinery manufacturing and repair enterprises.
4,700.00$
| Parameter | Specification |
|---|---|
| Machine Model | TK7220B |
| Machine Type | Vertical hydraulic fine boring machine |
| Maximum Boring Diameter | 200mm |
| Maximum Boring Depth | 500mm |
| Spindle Taper | MT5 (Morse Taper No.5) |
| Spindle Speed Range | 53-840r/min (stepless speed regulation) |
| Spindle Feed Range | 0.05-0.20mm/rev (stepless adjustable) |
| Spindle Runout Accuracy | ≤0.003mm |
| Boring Hole Roundness | ≤0.005mm |
| Boring Hole Cylindricity | ≤0.008mm/100mm |
| Worktable Size (Length×Width) | 1000×400mm |
| Worktable Longitudinal Travel (X-axis) | 900mm |
| Worktable Cross Travel (Y-axis) | 100mm |
| Worktable Positioning Accuracy | ±0.005mm |
| Distance from Spindle Axis to Carriage Vertical Plane | 315mm |
| Maximum Workpiece Weight | 500kg |
| Main Motor Power | 5.5kW |
| Hydraulic System Power | 2.2kW |
| Hydraulic Working Pressure | 6-8MPa |
| Control Mode | Electric-hydraulic combined control (with fast centering device) |
| Overall Dimensions (L×W×H) | 2250×1588×2335mm |
| Machine Net Weight | Approx. 3300kg |
| Working Voltage | 380V/50Hz (3-phase; customizable for export) |
| Special Configuration | Workpiece fast centering device, optional longitudinal and cross digital display |
| Cooling System | Circulating liquid cooling (flow rate adjustable) |
| Lubrication System | Automatic forced lubrication (spindle/guide rail) |
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