High Precision Boring for Full Connecting Rod Alignment Restoration
The AB320 delivers ultra-precise boring to recondition worn connecting rod bores after bushing replacement. It perfectly recovers coaxiality between the big-end and small-end holes, eliminating misalignment issues that trigger engine vibration, abnormal wear and power loss during operation.
Flexible Adjustable Fixture Fits Auto & Diesel Connecting Rods
Featuring fully adjustable positioning jigs, this machine accommodates connecting rods of various sizes for passenger cars, light commercial vehicles and heavy-duty diesel engines. It adapts seamlessly to mixed fleet overhaul tasks, making it a universal core device for multi-service auto repair and engine remanufacturing workshops.
Rigid Anti-Vibration Frame for Consistent Long-Term Accuracy
Constructed with heavy solid cast base and high-precision dedicated boring spindle, the rigid overall structure effectively suppresses machining vibration. Multiple reliable positioning modes guarantee stable repeatable boring precision during continuous daily high-volume rod reconditioning work.
All-In-One Cost-Effective Connecting Rod Reconditioning Workstation
Covers full-cycle connecting rod refurbishment from worn rod repair to new blank component machining. It upgrades your workshop’s engine overhaul capacity, slashes expensive whole connecting rod replacement costs, and speeds up boring cycles to boost daily repair output and overall workshop profit margins.
Technical Specifications
| Model | AB320 |
|---|---|
| Boring Bar Rotation Speed | 480 / 700 / 960 / 1400 RPM |
| Min-Max. Boring Diameter | 15–100 mm (15–36 mm Optional) |
| Min-Max. Con-Rod Center Distance | 60–500 mm |
| Distance Table-Spindle Axis | 130 mm |
| Max. Table Travel | 260 mm |
| Max. Vertical Table Shift | 20 mm |
| Table Automatic Feed Speed | 0.06–0.12 mm/rev |
| Table Manual Travel | 75.4 mm/rev |
| Motor Power | 0.85–1.1 kW |
| Packing Dimensions (L × W × H) | 1030 × 800 × 1750 mm |
| N.W. / G.W. | 280 / 320 Kg |
FAQ
1. What types of connecting rods can the AB320 machine recondition?
The AB320 is designed for precision boring and reconditioning of connecting rods used in gasoline and diesel engines. It is suitable for passenger cars, commercial vehicles, heavy-duty trucks, agricultural machinery, marine engines, and industrial power equipment. Its adjustable fixturing allows workshops to service a wide range of connecting rod sizes with high accuracy.
2. Why is connecting rod boring necessary during engine rebuilding?
Over time, the big-end bore of a connecting rod can become worn, out-of-round, or misaligned after long-term operation or cap replacement. Precision boring restores the correct bore diameter and roundness, ensuring proper bearing clearance, smooth crankshaft rotation, and longer engine life. Accurate measurements should always be taken before machining to determine the required repair size.
3. How does the AB320 ensure accurate connecting rod alignment?
The AB320 uses dedicated locating fixtures and precision boring technology to accurately position the connecting rod before machining. Stable clamping and precise alignment help maintain concentricity between the connecting rod bore and crankshaft journal, reducing the risk of premature bearing wear and improving overall engine reliability. Dedicated connecting rod boring machines provide better alignment control than general-purpose machine tools.
4. Can the AB320 improve workshop productivity?
Yes. The machine is designed for quick setup and efficient machining, allowing technicians to recondition connecting rods with consistent quality and reduced manual adjustment. This helps workshops shorten repair cycles, increase daily output, and provide complete engine rebuilding services in-house instead of outsourcing.
5. Why choose a dedicated connecting rod boring machine instead of using a conventional lathe or milling machine?
A dedicated connecting rod boring machine is specifically engineered to maintain bore alignment, roundness, and repeatable accuracy during connecting rod reconditioning. Compared with conventional machine tools, it offers specialized fixturing, easier centering, and higher machining consistency, making it the preferred choice for professional engine rebuilding workshops.
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.
