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Seckin Makine | Producer of Wheel Rim and Hydraulic Cylinder
Seckin Makine | Producer of Wheel Rim and Hydraulic Cylinder 50 Years

Cylinder Group 564-4924/622-1044

10 August 2026

Cylinder Group 564-4924/622-1044

Excavator    Caterpillar    395

Boom Cylinder    Bore    210,00    Stroke    1.967,00    Hydraulic Cylinder

5644924/6221044

853 kg

Compatible Brand: Caterpillar

Part Number: 622-1044 (6221044)

Superseded / Interchange Numbers: 564-4924 (5644924)

Part Name: Excavator Boom Hydraulic Cylinder Group

Technical Specifications: Bore: 210.00 mm / Stroke: 1,967.00 mm / Weight: ~853 kg / Hydraulic Cylinder

Compatible Machinery: Caterpillar Heavy Mining Excavators (395 series)

What It Does:

Serves as the primary boom hydraulic actuator operating in a paired setup on Caterpillar 395 large mining hydraulic excavators. Powered by high-pressure hydraulic fluid, it extends and retracts to drive the vertical elevation, lowering, and heavy lifting cycles of the main boom, arm, and bucket linkage.

Importance:

Essential for carrying the main structural and hydraulic lifting load during heavy mass excavation, rock loading, and severe mining tasks on 90+ ton class excavators. Featuring a massive 853 kg heavy-walled barrel and high-strength forged rod, it effectively absorbs extreme vertical impact loads and severe bending stresses, while advanced internal seals prevent fluid bypass under continuous high-pressure operation.

As Seçkin Makine, we manufacture this product as an aftermarket item fully equivalent to the original specifications in terms of raw materials, technical dimensions, and performance characteristics. This product comes with a 1-year warranty from the invoice date.