Heavy-Duty Excavator Boom & Arm
Maximize your excavator’s uptime and structural integrity with DZR’s Premium Excavator Booms and Arms. Engineered with high-strength structural steel and manufactured to precise OEM standards, our front attachments are built to withstand the harshest mining, quarrying, and heavy excavation environments.
Application: Standard Reach, Long Reach, Demolition, and Heavy-Duty Mining.
Warranty: Up to 12–24 months operational guarantee.
At DZR, we know that the boom and arm bear the highest stress during operation. We do not compromise on material integrity.
High-Strength Steel Construction: Built utilizing premium Q355B, Q460, or authentic Hardox® / NM400/500 wear-resistant steel at critical high-stress points (such as the arm tip and boom foot).
Advanced Welding Technology: Processed with submerged arc welding and strict ultrasonic non-destructive testing (NDT) to eliminate internal defects and ensure zero weld failures.
Precision Boring & Bushings: All pin holes are bored on high-precision CNC machines to guarantee perfect alignment, reducing friction and extending the lifespan of pins and bushings.
Internal Reinforcement: Specially designed internal baffle plates distribute stress evenly, preventing cracking or bending under extreme mining loads.
Our booms and arms are fully compatible with major global heavy machinery brands. We build according to precise factory dimensions, ensuring seamless installation.
Caterpillar (CAT): 320, 330, 336, 345, 349, 374, 390, D9R/D10 series components.
Komatsu: PC200, PC300, PC400, PC450, PC800, PC1250, and mining series.
Hitachi: ZX200, ZX330, ZX470, ZX670, ZX870.
Volvo: EC210, EC290, EC360, EC480, EC750, EC900, EC950.
Other Major Brands: Kobelco, Sany, Shantui, XCMG, Hyundai, Doosan.
Looking for custom dimensions? We offer full custom engineering (OEM/ODM) based on your specific machine modifications or structural drawings.
Zero-Downtime Reliability: Engineered to deliver thousands of hours of trouble-free operation in high-impact environments.
Global Shipping & Structural Integrity: Safely packed in heavy-duty steel frames to prevent any structural or paint damage during international ocean freight.
Complete Assembly Support: Available as bare structures or fully assembled with internal hydraulic hard piping, lubrication lines, bushings, and link-assemblies.
Let us help you minimize downtime and maximize productivity. Contact our engineering support team to get direct factory-direct pricing and technical drawings.
Contact us via TEL / WhatsApp / WeChat Quick response within 12 hours
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+86 1588 0208980
doozer@doozergroup.com
