Dual-Material Compatible Stable Machining
It works well with both aluminum alloy and cast iron cylinder heads. The rigid frame and precision grinding system lower vibration to deliver consistent accuracy and premium surface finish, while its mature honing structure guarantees stable precision for bore processing in automotive and agricultural machinery engine repair.
Flexible Expandable Processing Range
It meets resurfacing standards of gasoline and diesel engine cylinder heads, and extra jigs can extend its honing capacity to more part bores. With easy setup and a broad 25 – 170 mm honing hole diameter range, it fits both small-batch repair and high-volume regular finishing tasks in engine remanufacturing factories.
Heavy-Duty Equipment for Professional Workshops
Widely adopted in engine remanufacturing factories, cylinder head repair centers, agricultural machinery stations and auto machine shops, the 3MB9817 provides efficient honing and cylinder head grinding services to boost the productivity of engine overhaul businesses. Its robust 820 kg construction and 1.5 kW main motor ensure reliable continuous operation.
Multi-Scenario Precision Machining Solution
The 3MB9817 specializes in honing cylinders for automobiles, motorcycles, and tractors, and can handle inner hole honing of other workpieces with customized jigs. Meanwhile, it performs high-precision grinding on deformed or worn cylinder heads to restore flatness and sealing performance, making it a versatile dual-function machine for professional engine rebuilding workshops and cylinder head repair centers.
Technical Specifications
| Model | 3MB9817 |
| Honing hole diameter | 25 – 170 mm (0.98 – 6.69″) |
| Max. depth of honing hole | 320 mm (12.6″) |
| Main shaft rotation speed | 120 / 160 / 225 / 290 r/min |
| Main shaft stroke speed | 35 / 44 / 60 s/min |
| Horizontal motion distance of main shaft | 900 mm (35.4″) |
| Lifting height of machine table | 150 mm (5.9″) |
| Main motor power | 1.5 kW (2.0 HP) |
| Main motor voltage | 3-phase 380 V |
| Main motor frequency | 50 Hz |
| Cooling pump power | 0.125 kW |
| Cooling pump voltage | 3-phase 380 V |
| Cooling pump frequency | 50 Hz |
| Overall dimensions (L × W × H) | 1,640 × 1,670 × 1,920 mm (64.6 × 65.7 × 75.6″) |
| Machine weight | 820 kg (1,807 lbs) |
Product Video
FAQ
1. Why is cylinder honing essential after engine boring?
Cylinder boring restores the bore diameter, while honing creates the final surface finish and crosshatch pattern required for proper piston ring seating. The 3MB9817 delivers precision honing that improves compression, oil retention, and engine durability, making it an essential step in professional engine rebuilding.
2. Can the 3MB9817 restore worn cylinder bores?
Yes. The 3MB9817 is designed to remove minor surface imperfections, improve cylinder roundness, and produce a consistent finish after boring. It prepares the cylinder wall for new piston rings, helping restore sealing performance and reduce excessive oil consumption.
3. What types of engine blocks can the 3MB9817 process?
The 3MB9817 is suitable for inline and V-type engine blocks used in passenger cars, diesel trucks, agricultural machinery, construction equipment, motorcycles, marine engines, and industrial power units. Its adjustable working table provides the flexibility needed for a wide variety of engine rebuilding applications.
4. How does the correct honing pattern improve engine performance?
A precision crosshatch pattern retains lubricating oil on the cylinder wall while allowing piston rings to seat evenly during engine break-in. This improves compression, reduces friction and blow-by, minimizes oil consumption, and extends engine service life.
5. Why choose the 3MB9817 for professional engine rebuilding?
The 3MB9817 combines stable spindle performance, precision honing technology, and a flexible worktable to deliver consistent cylinder bore finishing across a wide range of engine types. It is an ideal solution for automotive machine shops, diesel engine repair centers, engine remanufacturing facilities, and vocational training schools seeking reliable and repeatable honing results.
