It is mainly used for processing small pipe bore and concentric pitch holes. It is widely used for on-site maintenance of excavators, cranes, loaders and other construction machinery to reduce equipment maintenance costs and improve work efficiency.








TYPE | BM-40 | BM-50 | BWM-50S | BWM-50P | BM-60 | BM-60S |
Main motor | 1.5KW Brushless DC | 1.5KW Brushless DC | 3KW Vertical servo | 3KW Vertical servo | 2KW DC servo | 2KW DC servo |
Power of cutter moving motor | 120W | 120W | 120W | 120W | 120W | 120W |
Main motor output speed | 125r/min | 125r/min | 0-300r/min | 0-300r/min | 100r/min | 80r/min |
Motor speed control | CVT | CVT | CVT | CVT | CVT | CVT |
Feed way | Tiptronic | Tiptronic | Tiptronic | Tiptronic | Tiptronic | Tiptronic |
The boring bar diameter | 40mm | 50mm | 50mm | 50mm | 60mm | 60mm |
Scope of boring | 45-200mm | 55mm-260mm | 55mm-260mm | 55mm-260mm | 65--500mm | 65-500mm |
Feed stroke | 380mm | 380mm | 200mm | 200mm | 420mm | 740mm |
Maximum cutting capacity on one side | 2-3mm | 2-3mm | 3mm | 2mm | 2-3mm | 2-3mm |
Machining roundness | 0.03mm | 0.03mm | 0.02mm | 0.03mm | 0.03mm | 0.05mm |
roughness | 3.2um | 3.2 | 3.2 | 3.2 | 3.2um | 3.2um |
Installation | Weld | Weld | Weld | Weld | Weld | Weld |
Hole range | * | * | 55-230mm | 55-230mm | * | * |
Single side welding thickness | * | * | 3-4mm | 2-3mm | * | * |
Wire type | * | * | 1.0 | 1.0 | * | * |



Shandong Jiarun Heavy Industry Machinery Co., Ltd. was founded in 2010, is located in Jining City, Shandong Province, which is the state of etiquette and the hometown of Confucius and Mencius.
The company has 20 core R&D engineers with more than 10 years of R&D experience. The company is an enterprise integrating production, R&D and sales. The company has advanced processing equipment, strong technical force and complete testing equipment. The company produces road, construction, industrial and mining, agricultural and forestry machinery and other equipment.
Our products sell well in Europe, America, South America, Southeast Asia, Africa, Middle East, Southeast Asia and other parts of the world. In the future development project, Guangzhou Carlson Machinery Co., Ltd. will take high quality, high standard, high efficiency, high service as the strategic goal to provide users with quality products. Warmly welcome to negotiate, guidance and cooperation.



What size Linear Boring Machine should I choose?
There are many different sizes of Linear Boring Machines to choose from. No single machine can accurately machine all of the above diameters, so you need to consider the type of workpiece you want to machine.
There are many different bar lengths to choose from, depending on the needs of your job. It is important to note that for small diameter boring bars, the longer the bar, the greater the risk of sagging.
What is the lead time for a linear boring machine?
This depends on the size of the machine and stock availability. For linear boring machines, it is best to think ahead as it can take several weeks from the time payment is received until the machine arrives. This is due to the fact that each machine is customised with many options available.
Can supplier supply machines in my area?
Yes, we export our portable roadheaders all over the world.
What maintenance is required?
If properly maintained, an equipment can be used trouble-free for many years, providing accurate and consistent results every time. Simple cleaning, debris removal and oiling is all that is required.