In the heavy machinery industry, an excavator long arm is often the absolute workhorse on demanding job sites. Whether it is operating in muddy riverbanks, highly corrosive coastal environments, dusty mines, or underground tunnels, a long arm excavator faces brutal conditions every single day. Among all structural components, bolts and fasteners may seem small, but they bear the tremendous responsibility of holding massive forces together. A rusted or seized bolt can lead to difficult maintenance, costly project delays, and even severe safety hazards.
Driven by our relentless pursuit of premium quality, we are proud to announce a major upgrade: All connecting bolts across our entire range of specialized equipment—including the excavator telescopic arm, piling arm, tunneling arm, demolition arm, and sliding arm—are now fully treated with industry-leading Dacromet coating.
Why Dacromet? The Ultimate Armor for Your Long Reach Excavator Boom
Traditional electro-galvanizing or standard painting often falls short when exposed to intense outdoor operations. They easily peel off, degrade, and eventually rust. In contrast, the Dacromet process acts as an impenetrable "silver-gray armor" for every single bolt used on a long reach excavator boom. Through specialized coating and high-temperature baking, overlapping zinc-aluminum flakes form a dense, labyrinth-like barrier. This not only blocks corrosive elements from entering but also uses sacrificial anode protection to actively defend the base steel against erosion.
1000 Hours Rust-Free Guarantee: Elevating Your Long Excavator Reach
With this comprehensive upgrade, the overall quality and durability of our machines have been significantly elevated. The most direct benefit is the outstanding corrosion resistance. Rigorous neutral salt spray tests prove that all Dacromet-treated fasteners easily exceed the strict standard of 1000 hours without any sign of rust.
For end-users, this translates to real-world reliability. Even under prolonged exposure to moisture or extreme weather, your long excavator reach maintains perfect clamping force. You can finally say goodbye to the nightmare of struggling with seized bolts or having to cut them off during maintenance. This dramatically reduces downtime and long-term maintenance costs.
Built for Extreme Stress: Protecting the Excavator Rock Arm
Beyond rust resistance, the Dacromet treatment offers exceptional hydrogen embrittlement-free properties and high-temperature tolerance. This is especially critical for heavy-duty applications like the excavator rock arm, which endures high-frequency vibrations and massive impact loads. The coating ensures that the mechanical strength of high-strength bolts remains completely uncompromised, eliminating the risk of sudden fractures. Furthermore, its heat resistance up to 300°C allows the equipment to perform flawlessly even in high-temperature working environments.
Our Commitment to Excellence
True quality lies in the details. Starting from a simple bolt, we demonstrate our deep respect for engineering safety and our unwavering commitment to our customers. Choosing our upgraded series means choosing peace of mind, unmatched durability, and superior efficiency.
Zhonghe Machinery is a big Manufacturer of Excavator Arm and Boom
Any interest,
Welcome to contact Aria--sales manager of Zhonghe Machinery.
Whatsapp: wa.me/+8613822325403
Email: aria@excavatorlongarm.com
Website link: www.excavatorlongarm.com
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