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The T7220C cylinder boring machine is mainly used for boring cylinder holes and cylinder liner inner holes of internal-combustion engines of vehicles and tractors. It can also be used for fine boring of inner holes of other parts. With excellent rigidity and optimized dimensions, the T7220C is specially designed and mainly used for medium, large, and heavy engines.




Ideal for Medium/Large Engines: Specifically optimized for medium-duty, heavy-duty truck, and tractor engines, covering a processing diameter of 30-200mm.
Efficient Auxiliary Mechanisms: Features a rapid longitudinal moving speed for the worktable (1500mm/min) and rapid spindle movement (3900mm/min), significantly saving setup time.
Multi-speed Options: Offers 6 levels of spindle speed and 4 levels of feeding capacity, perfectly meeting the requirements of both rough and fine boring processes.
Complete Standard Setup: Comes standard with both Spindle Φ60 and Φ90 assemblies, easily handling common cylinder diameters from 60-122mm.
Application Scenarios: Comprehensive auto repair shops, agricultural machinery (tractor) rebuild stations, medium/heavy commercial vehicle service centers, bus overhaul factories.
FAQ:
Q: What is the main difference between T7220C and T2200? A: The T7220C is aimed at regular medium/heavy trucks and tractors with a max depth of 500mm. The T2200 is much larger, designed for marine and super-heavy machinery, with a max depth of 850mm.
Q: Are the spindles included? A: Yes, the standard attachment package includes both Spindle Φ60 and Φ90 assemblies.
| Parameter | Specification |
|---|---|
| Processing Diameter | 30–200 mm |
| Max. Boring Depth | 500 mm |
| Max. Milling Diameter | 250 / 315 mm |
| Spindle Speed | 53 / 75 / 106 / 150 / 210 / ... r/min |
| Spindle Feed Capacity | 0.05 / 0.08 / 0.125 / 0.2 mm/r |
| Spindle Feed Speed | 300 / 420 / 590 / 840 mm/min |
| Rapid Spindle Travel Speed | 3900 mm/min |
| Distance Between Spindle End Face and Table | 0–1250 mm |
| Distance Between Spindle Axis and Carriage Vertical Plane | 315 mm |
| Longitudinal Feed Speed of Worktable | 55–100 mm/min |
| Rapid Longitudinal Travel Speed of Worktable | 1500 mm/min |
| Max. Longitudinal Travel of Worktable | 1100 mm |
| Max. Cross Travel of Worktable | 100 mm |
| Worktable Size (L × W) | 1680 × 500 mm |
| Main Motor Power | 4 kW (1.1 / 0.85) |
| Overall Dimensions (L × W × H) | 2610 × 1655 × 2345 mm |
| Packing Dimensions (L × W × H) | 2000 × 1800 × 2500 mm |
| Net Weight / Gross Weight | 3500 / 3800 kg |



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