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The 2M2217 is mainly used for honing cylinder holes and cylinder liner inner holes of internal-combustion engines of vehicles and tractors. It can also be used for the fine honing of inner holes of other precision parts. The machine features hydraulic-driven up/down movement with infinitely variable speed, and a safe, reliable mechanical rotation speed change system for the honing head.



High Precision Machining: Achieves a roundness of 0.003mm, cylindricity of 0.005mm, and surface roughness up to Ra 0.4.
Flexible Operation: Hydraulic-driven up/down stroke supports infinitely variable speed (stepless), adapting to various working conditions.
Wide Applicability: Honing diameter ranges from 40-170mm, with a maximum honing depth of 300mm, meeting the needs of various vehicle models.
Rich Standard Attachments: Comes standard with MT60 series honing heads of different specifications and accessories, ready to use out of the box.
Application Scenarios & FAQ:
Application Scenarios: Auto repair shops, engine rebuilding facilities, tractor & agricultural machinery service centers, precision machining workshops.
FAQ:
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Q: How do I change the speed on this machine? A: The spindle's up/down reciprocating movement is hydraulically driven with stepless speed control (0-18m/min); the spindle's rotation uses mechanical gear shifting, providing four-speed options.
Q: What is the maximum processing depth? A: The machine can hone up to a maximum depth of 300mm.
| Parameter | Specification |
|---|---|
| Honing Diameter Range | 40–170 mm |
| Max. Spindle Stroke (To & Fro) | 270 mm |
| Max. Honing Depth | 300 mm |
| Expanding & Contracting Length of Spindle Connecting Shaft | 120 mm |
| Distance from Spindle Centerline to Column Vertical Face | 345 mm |
| Spindle Speed | 15 / 160 / 225 / 320 rpm |
| Spindle Reciprocating Speed (Stepless) | 0–18 m/min |
| Table Size | 500 × 1350 mm |
| Longitudinal Travel | 1000 mm |
| Roundness Accuracy | 0.003 mm |
| Cylindricity Accuracy | 0.005 mm |
| Surface Roughness | Ra 0.4 |
| Overall Dimensions | 2600 × 1650 × 2090 mm |
| Package Dimensions | 1440 × 1770 × 2230 mm |
| Net Weight / Gross Weight | 2000 / 2500 kg |



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