Crankshaft grinder is a CNC machine tool specially used for precision grinding of engine crankshafts. It is mainly used to process the main journal and connecting rod journal of the crankshaft to ensure that its dimensional accuracy, roundness, cylindricity and surface roughness meet strict technical requirements. It is a key processing equipment in the engine, ship, heavy machinery and other industries.
As a high-precision grinding equipment, crankshaft grinders are mainly used for precision machining and repair of crankshafts (core components of engines). Their application areas cover multiple power system-related industries, as follows:
1.Automobile industry
Fuel engine: Grinding the main journal and connecting rod journal of gasoline and diesel engine crankshafts to ensure dimensional accuracy (usually required within ±2 microns) and surface roughness (Ra≤0.4μm), which directly affects the smoothness and life of the engine.
Hybrid/extended-range vehicles: With the popularization of hybrid technology, crankshaft grinders need to take into account high-precision machining of traditional fuel segments and high torque requirements.
Racing cars and high-performance vehicles: Higher requirements for lightweight and dynamic balance of crankshafts require precision grinding of special materials (such as alloy steel).
2.Ships and heavy machinery
Large marine diesel engines: The length of ship crankshafts can reach more than 10 meters. The grinder needs to have a large load capacity and segmented grinding function to solve the problem of thermal deformation compensation.
Engineering machinery: The crankshafts of equipment such as excavators and generator sets require higher wear resistance and fatigue strength due to their heavy loads, and grinding technology is the key.
3.Aerospace
Aircraft engine crankshafts: The crankshafts of turboprop engines or piston aircraft engines require extreme precision (such as micron-level roundness), and some use special processes such as ceramic coating.
4.Energy equipment
Gas turbines: The rotor shafts of some small gas turbines are similar to the crankshaft structure and require high dynamic balance.
Nuclear power/thermal power maintenance: Used to repair the wear or deformation of large crankshafts in generator sets.
5.Repair and remanufacturing
Crankshaft repair: Grinding removes the wear layer and restores the original size, which saves more than 60% of the cost compared to replacing a new shaft. It is widely used in automobile 4S stores, ship repair plants, etc.
Remanufacturing industry: In line with the trend of circular economy, such as green reprocessing of retired engine crankshafts.
6.Other fields
Compressor/pump equipment: finishing of high-pressure reciprocating compressor crankshafts;
Special vehicles: customized production of crankshafts for heavy equipment such as armored vehicles and mining trucks.
If you have similar needs, please contact Shanghai ANTISHICNC: contact@antsmachine.com. We not only have grinders, crankshaft grinders, follow-up grinders, center-less grinders, but also cylindrical grinders, internal cylindrical grinders, and universal grinders. Our technical team will definitely be able to match you with the most suitable technical solution.
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