Mining equipment bore repair welding machine
2-in-1 Boring & Welding Function: Integrated line boring machine reduces equipment investment cost
On-site Machining Solution: Mobile boring welding machine avoids dismantling and factory transportation
Precision Hole Restoration: Accurate boring welding machine improves excavator pin hole repair quality
Product Introduction
If you run a mine or a construction fleet, you know exactly how bad a single worn pin bore can mess up your whole schedule. I’ve seen too many operations grind to a complete halt because one hole on an excavator arm got elongated. The old way? Either tear the whole machine apart, haul the 2-ton component 300km to a workshop, and wait a week for repairs, or just buy a brand new boom that costs $50,000+. Both options burn money and waste time you can’t afford to lose.That’s exactly why we built this all-in-one bore repair welding machine. It does both automatic welding and precision line boring in one unit, so you can fix any worn, damaged or out-of-round bore right there on your job site. No more tearing machines apart, no more waiting for outside shops, no more paying exorbitant replacement costs.
Product Parameters
Welding Diameter Range | 60mm - 600mm (2.4" - 24") |
Max Boring Depth | 1000mm (39") |
Spindle Speed | 0-150 RPM, fully stepless |
Welding Current | 50-350A |
Accepts Welding Wire | 0.8mm, 1.0mm, 1.2mm |
Power Supply | 380V/3Phase/50Hz (we can make 220V/440V/60Hz no extra charge) |
Main Boring Unit Weight | 85kg (187lbs) |
Welding Unit Weight | 65kg (143lbs) |
Welding Rotation Speed | 0-10 RPM, fully stepless |
Product Usage Scenarios
This boring and welding integrated machine fixes every pin bore you’ll ever run into on heavy equipment:
Excavator boom, stick and bucket pin holes
Bulldozer track frame and blade pivot points
Mining truck suspension and steering knuckle bores
Wheel loader lift arm and bucket pivots
Shovel and dragline pin joints
Factory Profile
We’re a real factory, not a trading company.We have our own R&D team of 12 engineers. We’re constantly improving the machines based on feedback from actual users.All critical parts (spindles, boring bars, gearboxes) are made on our own CNC machines. We don’t buy cheap generic parts from other factories.Every single machine runs for 48 hours straight before it leaves the factory. We test every function, every speed, every welding setting.We’re ISO 9001:2015 certified. All our processes are standardized so every machine is the same high quality.We do custom work. If you have a weird job that no standard machine can handle, we’ll design one for you.
Customer Feedback
These are real messages from real customers, not made-up testimonials.
"We’ve had 2 of your machines in our Queensland coal mines for 5 years now. They get used every single day, and we’ve only had to replace a couple of torch tips. Last month we fixed a 450mm bore on a CAT 793 truck suspension. Before we had your machine, we would have had to send it to Brisbane, which takes 10 days and costs $12,000. We did it on site in 2 days, total cost $800 in wire and tools. This mobile line boring machine has paid for itself 10 times over."
— David Miller, Maintenance Manager, Australian Mining Services
"I own a small heavy equipment repair shop in Chile. I looked at 5 different brands before buying yours. The build quality is night and day. The automatic welding is perfect—even my new guys who have never welded before can get great results. I’ve already bought 2 more machines for my other shops. The only thing I regret is not buying from you sooner."
— Carlos Rodriguez, Owner, Chile Heavy Equipment Repair
Service Commitment
We don’t just sell you a machine and disappear. We stand behind everything we make.
Warranty
12 month full warranty on all manufacturing defects. If something breaks because we made it wrong, we’ll send you a new part for free, no questions asked
Lifetime technical support. As long as you own the machine, we’ll help you with any problem you have
We keep all spare parts in stock at all times. We can ship any part you need within 24 hours
What We Offer After You Buy
Free video training for you and your operators. We’ll walk you through setup, operation and basic maintenance
24/7 phone and WhatsApp support. Our technicians speak English, Spanish and Russian
We send you regular maintenance reminders so you don’t forget to service your machine
Software and hardware upgrades as we develop them
If you ever need major repairs, you can send the machine back to us, and we’ll fix it for cost
Our promise: We will reply to any message you send within 24 hours. If we can’t fix your problem over the phone or video, we’ll send a technician to your site as fast as we can.




