Engineering Machinery Main Boom Cylinder 150/75-419 150/75-419

The Engineering Machinery Main Boom Cylinder 150/75-419 150/75-419 is built for heavy construction machinery and civil engineering equipment. Robust welded or flanged construction, deep-chrome rod plating, and multi-lip seal systems ensure reliable performance in abrasive, dusty field environments. Suitable for integration into excavator arm circuits, loader booms, and construction platform systems. Bore diameter Ø150mm, piston rod diameter Ø75mm, stroke 419mm. Materials: barrel — seamless honed steel tube; piston rod — 45# or 40Cr alloy steel, induction hardened Ø0.03-0.05mm oversize then hard chrome plated to Ra≤0.4μm; seals — Parker (USA) or Merkel (Germany) standard. All cylinders are hydraulically pressure-tested before dispatch. Custom bore, stroke, mounting, port position and surface treatment available on request. Contact Hengshui export sales for technical drawings and quotation: sales@wx-hxy.com | WhatsApp +86 133 8224 8877.