Product Description
Our line boring excavator is a portable on-site machining solution specifically designed for restoring worn and damaged bores on excavator components.
It supports accurate line boring directly on pending-repair excavators without dismantling major structures, enabling the excavator to be repaired and to work quickly and cost-effectively.
Because of its compact and rugged design, the excavator line boring machine can be mounted on excavator arms, booms, frames, and other attachments, making it ideal for field repair in construction sites, mining areas, and maintenance yards.
Our portable line boring for excavators provides a wonderful repair solution of on-site excavator bore repair. As the bore repair of excavators is a common problems, whether you are the equipment owners, on-repair contractors or field service providers, you should have it for enhancing onsite repair capabilities
Product Specification
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MB40160 |
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Line Boring Excavator |
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Standard Line Boring Ability |
Optional Extended Auto Bore Welding Ability |
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Boring Bar Length |
1600mm, 1200mm, 750mm |
Welding Rod Dia. |
40mm |
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Bore Dia. |
40-300mm |
Welding Dia. |
40-300mm |
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Boring Bar Dia. |
50mm,35mm |
Welding Rod Length |
200,240,300,380mm |
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Lead Screw Stroke |
280mm |
Welding Supply |
MIG |
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Power |
3.1KW |
MIG Type |
200a-500a |
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Voltage |
220V, 380V |
Welding Wire Dia. |
0.8, 1.0, 1.2mm |
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RPM |
50-300rpm |
Welding Torch Cable |
4500mm |
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Torque |
105N.m |
N/A |
N/A |
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Speed Control |
Stepless |
N/A |
N/A |
Product Advantages
Its advantages can not be provided by traditional repair methods.
- Suitable for both small and large excavator models
- Machining performed directly on the excavator
- No dismantling
- Easy to transport and set up in confined areas
- Extends service life of excavator components
Before Repair and After Repair

Broad Machining Capabilities
The typical machining positions on the excavators include:
- Boom pin bores
- Arm (stick) pin bores
- Bucket pin and linkage bores
- Frame and swing base bores
- Attachment connection bores
Why Timely Bore Repair is Important?
Timely repair can prevent excessive damage, which can increase the difficulty of repair and cause damage to other parts.
About Customization
Our company are focused on-site repair equipment, which independently handle the design, production, and sales.
We design, manufacture, and supply on-site machining machine tools in our own hands. So we are capable of providing custom machines and complete on-site repair solutions for different equipment across various industries. This allows us to ensure consistent quality and stable lead times.
FAQ
Q: Who typically uses excavator line boring machines?
A: Common users include:
Excavator owners and fleet operators
Equipment maintenance teams
On-site repair contractors
Heavy equipment service workshops
Q: Is line boring suitable for on-site repair of excavators?
A: Yes. The system is specifically designed for field line boring, allowing repairs to be completed directly on construction sites, mines, or maintenance yards.
Q: How much does an line boring excavator cost?
A: Its price range is from USD2,615 to USD 3,015.
The final price depends on the configuration, bore size range, and accessories of machine.
Q: Is the machine difficult to operate?
A: No. The system is designed for simple setup and user-friendly operation.
Operators can quickly learn alignment, boring, and measurement procedures.
Q: How does line boring compare with traditional repair methods?
A: Compared to traditional workshop repair:
No dismantling of excavator structures
No transportation of large components
Significantly reduced downtime
Lower labor and logistics costs
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