4694563 Original Excavator Compressor Rod for EX1900-5

The original compressor rod part number 4694563 is a compressor connecting rod assembly provided by Hitachi Construction Machinery for the EX1900-5 190 ton hydraulic excavator (with a total working weight of approximately 190 tons). This connecting rod is mainly used in the air compressor of equipment (usually piston type), connecting the crankshaft and piston, converting the rotational motion of the crankshaft into the reciprocating motion of the piston to generate high-pressure compressed air, providing power for auxiliary functions such as pneumatic braking system, clutch assist, tire inflation, etc. of excavators. Its universal model is usually directly labeled as 4694563, which is a high-strength connecting rod made of forged alloy steel material. It may be compatible with other EX1900 series (such as EX1900-6) or Hitachi large excavator compressors of the same power level. However, to ensure matching accuracy and reliability, it is strongly recommended to use genuine original parts from the factory.

This product is an original compressor connecting rod, forged from high-strength alloy steel (such as 42CrMo), subjected to quenching and tempering heat treatment and precision grinding processing, with a tensile strength of ≥ 1000 MPa and excellent fatigue strength and impact toughness. Its structure is designed with an I-shaped cross-section, with small heads (piston pin holes) and large heads (crankshaft bearing holes) at both ends, and the middle rod body is surface blasted to improve its stress corrosion resistance. The large end of the connecting rod is usually equipped with separable bearing shells (made of copper lead alloy or aluminum based alloy), while the small end is fitted with bronze bushings. The working temperature range is -40 ℃ to+150 ℃, and the maximum reciprocating inertia force is ≥ 5000 N. It is suitable for harsh working conditions such as high-frequency and high load of excavator compressors. The connecting rod bolts are made of high-strength alloy steel (such as 40Cr), and the torque tightening value must strictly follow the original factory specifications (usually 120-150 N · m).

This product is an original compressor connecting rod, forged from high-strength alloy steel (such as 42CrMo), subjected to quenching and tempering heat treatment and precision grinding processing, with a tensile strength of ≥ 1000 MPa and excellent fatigue strength and impact toughness. Its structure is designed with an I-shaped cross-section, with small heads (piston pin holes) and large heads (crankshaft bearing holes) at both ends, and the middle rod body is surface blasted to improve its stress corrosion resistance. The large end of the connecting rod is usually equipped with separable bearing shells (made of copper lead alloy or aluminum based alloy), while the small end is fitted with bronze bushings. The working temperature range is -40 ℃ to+150 ℃, and the maximum reciprocating inertia force is ≥ 5000 N. It is suitable for harsh working conditions such as high-frequency and high load of excavator compressors. The connecting rod bolts are made of high-strength alloy steel (such as 40Cr), and the torque tightening value must strictly follow the original factory specifications (usually 120-150 N · m).