Heavy-Duty Precision Boring-Finishing Integrated Cylinder Boring Machine for Medium and Large Engine Cylinder Boring and Fine Boring

Integrates rough boring, semi-finish boring, and fine boring processes in one machine, eliminating the need for secondary transfer to separate honing equipment. The tool setting gauge configuration enables precise tool setting and diameter control. Bore dimensional accuracy and surface finish meet OEM repair standards for medium and large engines, reducing process steps and improving overall repair efficiency.

Optimized for medium and large diesel engines and marine power equipment, with a maximum boring diameter of 200 mm and maximum boring depth of 500 mm, covering most mainstream heavy-duty internal combustion engine models on the market. The reinforced cast iron frame and column ensure stable accuracy under long-stroke heavy cutting conditions, maintaining long-term precision even in high-intensity continuous operation scenarios.

Equipped with standard straight milling disc and round milling disc interfaces, fully compatible with T8018 series boring bars, cutter heads, and auxiliary fixtures. The optional accessory system covers V-type fixtures, parallel brackets, quick fixtures, and tool gauges, which can be flexibly matched according to different workpieces while following industry general interface standards.

The spindle is equipped with three-gear feed rates (0.05 / 0.90 / 1.2 mm/r), selectable according to rough boring, fine boring, and different material processes. The longitudinal rapid moving speed of the worktable reaches 3900 mm/min, effectively reducing non-cutting auxiliary time and improving overall production efficiency. The stroke limit and overload protection mechanism ensures stable and safe operation in the workshop environment.

The main spindle adopts heavy-duty precision bearing support with small radial runout and high axial rigidity. The standard Morse taper interface is compatible with various specifications of boring bars and cutter heads. The spindle speed of 390 r/min is matched with three-gear feed rates, adapting to different cutting processes from rough boring to fine boring. The long-stroke spindle design is optimized for deep hole boring of heavy engines, and the built-in lubrication and cooling system ensures stable accuracy during long-time continuous processing.

The worktable adopts a longitudinal automatic feed design with stepless speed regulation and rapid traverse function. The maximum longitudinal travel of 1100 mm and cross travel of 100 mm can meet the clamping and alignment requirements of in-line and V-type multi-cylinder engine blocks. It is equipped with stroke limit and overload protection devices that automatically stop when reaching the set position, ensuring safe and reliable operation in the maintenance workshop environment.

Supports optional straight milling disc and round milling disc, which can mill the top surface of the cylinder block while boring. One clamping completes two processes, avoiding secondary positioning error and improving the joint accuracy of the cylinder block top surface and cylinder bore. The milling interface is designed in accordance with industry general standards and can be interchanged with the same type of tooling on the market.

Equipped with a special tool setting gauge, it can quickly and accurately set the tool extension and bore diameter, reducing tool setting time and improving batch processing consistency. The factory pre-calibrates the tool setting reference, and users can directly perform tool setting operations according to the manual, reducing the requirement for operator experience.