Pin hole repairing equipment
All-in-one designCombines boring and welding in one machine for simplified operation.
High efficiencyOne-time clamping completes multiple processes, saving time and labor.
Compact & portableSmall size, easy to move and use on-site.
High precisionStable performance ensures accurate machining and welding.
Product Introduction
This 2-in-1 portable line boring and welding machine is made for on-site repair—plain and simple. It’s meant to fix worn, damaged, or too-big pin holes, pivot holes, and bearing seats on heavy machinery. No need to juggle multiple machines, no need to tear apart big components just to fix a single hole. We’ve combined precision boring and inner-hole overlay welding into one small, easy-to-assemble unit—so your team can get started right away, no delays.We designed this machine for folks out in the field—construction crews, mining teams, farmers, and marine maintenance workers. It’s tough enough to handle rough job sites, accurate enough to get your equipment back up and running, and quick to set up.
Product Parameters
Item | Specification |
Boring Diameter Range | φ45mm – φ200mm (we can customize it up to φ350mm if you need) |
Welding Diameter Range | φ45mm – φ200mm |
Boring Bar | φ50mm × 1500mm, made of 45# steel—it’s stiff, won’t bend easily even when you’re working hard |
Main Motor | 1.5KW brushless motor, stepless speed 0–180rpm—it runs smooth, quiet, and doesn’t break down often |
Feed Mode | Both automatic and manual feed—easy to switch between them depending on what you’re repairing |
Working Voltage | AC220V / 380V (50Hz, your choice)—fits power supplies in different countries, no need for extra adapters |
Machining Accuracy | IT7, surface roughness ≤ Ra3.2—meets standard fitting needs, no loose gaps after repair |
Single Stroke | 280mm |
Net Weight | 58kg per set—two people can carry it easily, and it fits in most work trucks |
Package Size | 950×550×450mm |
Product Usage Scenarios
This machine is made for on-site repair—no need to take parts off and ship them to a workshop. That saves time, labor, and money, especially for big or hard-to-move equipment. Here’s where it really shines:
•Construction Machinery: Fix worn pin holes on excavator booms and arms, pivot holes on loaders, and hinge holes on bulldozers. Keep construction sites running without long waits—no more sending parts off-site for repair.
•Mining Equipment: Fix bearing seats on mine trucks, crushers, and conveyors. Perfect for remote mines where moving heavy parts is hard and expensive. Set it up on-site and get equipment back to work fast.
•Agricultural Machinery: Repair linkage holes on tractors, harvesters, and seeders. Works right in the field—no need to move equipment to a repair shop during busy planting or harvest seasons. Keep your farm running smoothly.
Factory Profile
We’re a direct manufacturer with over 10 years of experience making portable machining and maintenance equipment. Our workshop is automated production lines that make sure every machine is consistent—no hit-or-miss quality.
We do everything in-house: design, casting, machining, assembly, and testing. Our engineers have 8+ years of experience with heavy equipment repair tools—they know what works on the job site because they’ve been there. We don’t just make machines; we make tools that solve real problems for your team.
Customer Feedback
“We use this machine to fix excavator booms at our shop. It cuts repair time in half compared to our old setup. It’s easy to operate—our techs learned it in a day. No more sending parts out, which saves us a lot of money.” — John, Maintenance Shop Owner, Australia
