Combined Boring & Milling Capability in One Machine
Integrating dual functions of cylinder boring and engine block surface milling, the BM150 model enables workshops to complete cylinder bore restoration and block surface machining with a single device. The multi-functional design greatly optimizes processing efficiency and effectively reduces redundant equipment investment and workshop space occupation. The B150 model provides dedicated cylinder boring capability without milling function for focused reboring applications.
Accurate Machining for Small and Medium Engine Blocks
Featuring a versatile machining range with a boring diameter of 31 – 150 mm and a maximum boring depth of 350 mm, the machine is perfectly tailored for precision restoration of automobile and motorcycle engine blocks, as well as various small and medium-sized engine components. A useful table surface of 400 × 1,000 mm supports most conventional engine repair scenarios in professional rebuilding workshops.
Stable Processing with Flexible Machining Adjustment
Built with a rigid reinforced structure and equipped with six-speed adjustable spindle speeds at 105, 201, 280, 390, 550 and 780 RPM, plus variable spindle feed options of 0.06, 0.12 and 0.18 mm/r, the equipment delivers steady and accurate cutting performance. The precision feed control system flexibly adapts to different machining materials and diverse engine repair requirements, ensuring consistent high-quality finishing.
Practical Solution for Engine Rebuilding Workshops
Ideal for engine rebuilding factories, automotive repair garages, motorcycle maintenance centers and professional machining workshops. The compact structure combined with dual processing functions effectively improves overall repair efficiency and expands the service scope of engine overhaul businesses. Precision boring achieves H7 tolerance with surface roughness Ra 2.5, while milling surface roughness reaches Ra 3.2 (BM150).
BM150 / B150 Technical Specifications
| Model | BM150 | B150 |
| Boring range | 31 – 150 mm (1.22 – 5.91″) |
|
| Max. boring depth | 350 mm (13.8″) |
|
| Max. milling width | 300 × 800 mm (11.8 × 31.5″) |
Without milling |
| Max. spindle head travel | 530 mm (20.9″) |
|
| Distance from spindle C/L to column ways | 335 mm (13.2″) |
|
| Useful table surface | 400 × 1,000 mm (15.7 × 39.4″) |
|
| Longitudinal traverse of table | 830 mm (32.7″) |
|
| Cross traverse of table | 60 mm (2.36″) |
|
| Spindle speed | 105 / 201 / 280 / 390 / 550 / 780 RPM | |
| Spindle feed – variable per rev. | 0.06 / 0.12 / 0.18 mm/r | |
| Spindle fast feed | 1,200 mm/min (47.2″/min) |
|
| Table work feed | 52 – 104 mm/min (2.05 – 4.09″/min) |
|
| Spindle motor | 1.5 / 1.2 kW | |
| Fast spindle motor | 0.09 kW | |
| Table feed motor | 0.19 kW | |
| Overall dimensions (L × W × H) | 257 × 117 × 192 cm (101.2 × 46.1 × 75.6″) |
|
| Packing dimensions (L × W × H) | 171 × 145 × 220 cm (67.3 × 57.1 × 86.6″) |
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| Net weight | 1,700 kg (3,748 lbs) |
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| Gross weight | 1,950 kg (4,299 lbs) |
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| Precision of boring dimension | H7 | |
| Roughness of boring surface | Ra 2.5 | |
| Roughness of milling surface | Ra 3.2 | |
FAQ
1 What machining operations can the BM150 perform?
The BM150 is a combined surfacing and boring machine that performs two essential engine machining operations: precision cylinder boring for engine blocks and surface milling for cylinder heads and block decks. This dual functionality makes it a compact, all-in-one solution for the core machining needs of an engine rebuilding shop.
2 What engine types is the BM150 compatible with?
The BM150 handles engine blocks and cylinder heads from passenger cars, motorcycles, and light-duty engines. It is well-suited for workshops that primarily service automotive gasoline engines and small diesel engines, covering the most common engine machining requirements in general auto repair and rebuilding.
3 Why choose a combined boring and milling machine over separate single-function machines?
A combined machine like the BM150 requires less floor space, costs less than purchasing two separate machines, and simplifies operator training. It also reduces workpiece handling since the technician can perform both boring and milling operations on the same station, maintaining alignment and reducing setup time between operations.
4 Is the BM150 suitable for small workshops?
Yes, the BM150 is specifically designed with small workshops in mind. Its compact footprint, affordable price point, and dual-function capability make professional engine machining accessible to smaller facilities. It provides the essential boring and surfacing capabilities that a general repair shop needs to offer in-house engine rebuilding without requiring a large dedicated machine shop.
5 What level of machining accuracy does the BM150 deliver?
The BM150 is built with a rigid cast iron frame, precision-ground spindle, and stable feed mechanism that together deliver the dimensional accuracy and surface finish quality needed for professional engine rebuilding. It achieves the cylinder bore geometry and deck flatness required for reliable piston ring sealing and head gasket performance.
6 If the machine breaks down, how do you provide after-sales support? Do you provide operation videos?
Yes. We provide comprehensive after-sales support, including remote technical assistance, online troubleshooting, operation manuals, demonstration videos, maintenance tutorials, and live video guidance. If replacement parts are required, genuine spare parts can be supplied quickly to minimize downtime and keep your machine running efficiently.
7 Can you issue Certificates of Origin (CO), Form A, Form E, or other export documents?
Yes. We can provide the necessary export documents — including Certificates of Origin (CO) and other preferential certificates such as Form E — in accordance with the trade agreements and customs requirements of the destination country. We can also assist you in preparing commercial invoices, packing lists, bills of lading, and other export documentation.
8 What is your minimum order quantity (MOQ)? Do you support OEM & ODM customization?
Our standard MOQ is 1 machine for most models. We also provide OEM and ODM services for distributors and equipment brands, including custom logos, machine colors, nameplates, voltage, packaging, and other specifications to meet your market requirements.
9 Which shipping ports do you use? Can you deliver to my designated warehouse?
We typically ship from major Chinese ports, including Shenzhen, Guangzhou, Ningbo, and Shanghai. We can also arrange delivery to your designated warehouse, freight forwarder, or project site through flexible international shipping solutions.
10 How long does delivery take to my country?
Production typically takes 7-35 days, depending on the machine model and order quantity. Shipping time varies by destination and transportation method. Once your order is confirmed, we will provide a detailed production schedule and estimated delivery time.
