SPARKLING Excavator Swing Reducer – Reliable & Precise Parts

Heavy-Duty Swing Gearbox Reducer for Hitachi JS Excavators
Engineered for JS200, JS210, JS220, JS220LR, and JS235 excavators, the Swing Gearbox Reducer (JRC0007) is the precision heart of your machine’s rotation system. This OEM-compatible reducer delivers unmatched torque transmission and smooth 360° slewing motion under extreme loads. Forged with hardened helical gears and triple-sealed bearings, it resists wear, minimizes backlash, and withstands relentless job site vibrations. SPARKLING MACHINERY’s JRC0007 undergoes rigorous cycle testing to ensure perfect meshing alignment and extended service life – because precise rotation isn’t a luxury, it’s the core of your excavator’s productivity.

   SPARKLING MACHINERY NEW EC200B EC235D EC200D VOE14541069 Swing Reducer is a dedicated power transmission component exclusively designed for EC200B, EC235D, and EC200D excavators. As the core of the excavator’s swing system, it reduces the high-speed input from the swing motor to generate high torque, enabling smooth, controlled 360° rotation of the upper structure (cabin, boom, and bucket). This function is critical for precise positioning during digging, loading, and material handling tasks in construction, mining, and earthmoving scenarios—ensuring the excavator operates with stability and accuracy even under heavy loads.

   Engineered to match original equipment performance standards, it maintains reliable torque output and rotational smoothness even in harsh working conditions, such as intense vibration, dust, and temperature fluctuations. It prevents rotational lag or jitter, safeguards the swing motor from overload damage, and supports continuous operation to minimize workflow interruptions. Backed by strict performance verification, it guarantees long-term operational stability for the excavator’s swing function.

   SPARKLING MACHINERY NEW K9007266 Axial Joint is a premium China-made mechanical component engineered for compatible excavators and heavy machinery. As a critical articulating part in hydraulic and structural systems, it enables smooth axial rotation and angular movement between connected components, ensuring flexible and precise operation of boom, arm, or transmission assemblies during heavy-duty tasks.

   Designed to original equipment standards, it maintains stable load-bearing capacity and rotational precision, performing reliably even under continuous stress and vibration. With optimized structural design for enhanced durability, it adapts seamlessly to harsh working environments, from dusty construction sites to muddy terrain. Backed by strict quality verification, it guarantees consistent performance to support uninterrupted machinery operation.

   SPARKLING MACHINERY NEW 320D 320D2 312-8338 Oil Cooler is a dedicated thermal management component exclusively designed for 320D and 320D2 excavators. As a core part of the excavators’ hydraulic and engine systems, it efficiently dissipates heat from hydraulic oil and engine oil—preventing oil overheating during heavy-duty operations like construction digging, mining loading, and infrastructure maintenance. This function is critical for preserving oil viscosity and lubrication performance, which directly protects key components (such as hydraulic pumps, valves, and engine bearings) from premature wear, ensuring stable power output and extending the service life of 320D/320D2 machinery.

   Engineered to match original equipment performance standards, it maintains strong heat dissipation efficiency even under harsh working conditions, including high ambient temperatures, dust accumulation, and continuous excavator vibration. It resists oil leakage and internal blockages, avoiding system failures that could lead to unplanned downtime or costly component repairs. Backed by strict performance verification, it guarantees reliable heat exchange to support uninterrupted operation of 320D and 320D2 excavators.