Huida
Huida
Explore our foundational hydraulic attachments designed for seamless integration with double-locking quick couplers, maximizing machine versatility and job site safety.
In modern heavy construction, civil engineering, and material recycling operations, productivity is directly proportional to how quickly and safely an excavator can transition between different specialized tools. Historically, manual quick pin systems presented significant danger, requiring the operator or site ground crew to hammer locking pins physically into place. With the introduction of hydraulic quick couplers, this process moved inside the safety of the operator's cabin.
However, basic single-locking couplers left a vulnerability: if hydraulic pressure failed, or if an operator made an error during engagement, heavy attachments could dislodge, causing catastrophic accidents. This safety gap led to the creation of the Hydraulic Double-Locking Quick Coupler. This system employs two independent physical lock mechanisms, ensuring that even under total loss of hydraulic power, the tool remains securely locked to the excavator boom until deliberately released via complex controls.
Initially established in December 2016 and restructured in March 2019 with a registered capital of 20 million yuan, Yantai Huida Intelligent Equipment Co., Ltd. stands as a premier developer and manufacturer of advanced attachments for demolition, recycling, and heavy excavators. Our core focus spans research, development, and high-precision manufacturing of scrap steel processing machinery, automobile recycling tools, and eco-friendly energy-saving equipment.
Equipped with nearly 40 product invention patents and certified under the rigorous ISO9001 quality management system, we guarantee unmatched stability and endurance. Our strategic R&D facility incorporates high-end processing technologies to build heavy structural equipment that withstands massive hydraulic pressures and high impact cycles.
Understanding the multi-tier safety mechanisms and high-strength metallurgy that make our double-locking systems the preferred choice for major construction firms globally.
Equipped with a high-durability internal check valve within the hydraulic cylinder, preventing pressure drops even during sudden hydraulic hose ruptures or power loss.
A secondary safety jaw or independent catch mechanically grips the front pin of the attachment. This lock functions completely independently of hydraulic force via heavy coil springs.
Constructed with tempered, high-tensile structural steel (Q460V / Hardox variants), distributing high sheer forces evenly across the excavator arm structure.
Why leading contractors and heavy machinery dealers choose Yantai Huida Intelligent Equipment Co., Ltd. as their long-term supply partner.
Our location in Yantai positions us within China's foremost industrial manufacturing zone for hydraulic and excavator equipment. This grants us seamless access to first-grade domestic raw steel structures, specialized chemical treatment facilities, and highly efficient logistics corridors.
With nearly 40 product invention patents and a dedicated design laboratory consisting of 6 top-tier R&D engineers, we are pioneers in advanced structural mathematics. We simulate sheer load and hydraulic resistance using FEA (Finite Element Analysis) software to ensure long equipment life cycles.
"Putting customers at the center and providing attentive service" starts at the source. We enforce strict criteria for structural alloys and hydraulic seals, forming strategic partnerships with tier-one cylinder and seal manufacturers to guarantee zero material defects.
From heavy demolition and automotive recycling to structural civil works, our quick-change interfaces drive unmatched operating efficiency.
By using double-locking quick couplers, an excavator can instantly switch between the Hydraulic Car Scrap Shear for sorting copper and the Eagle Shear for primary structural cut-downs. This boosts throughput by up to 45% compared to dedicated single-tool setups.
High-vibration applications, such as using a Silenced Hydraulic Rock Breaker or a Concrete Crusher, put extreme stress on connection pins. Our couplers integrate heavy-duty dampening and double-pin locks to absorb shock loads and prevent disengagement.
Operators can alternate between a High-Performance Tree Shear for clearing large brush and a Sorting Grapple for stacking logs or sorting rocks, completing complex multi-phase tasks with a single excavator carrier.
Ensuring operational continuity and rapid support through our proactive industrial service and global supply framework.
At Yantai Huida Intelligent Equipment Co., Ltd., "Putting customers at the center and providing attentive service" is more than a slogan. It is the cornerstone of our global partnerships. We maintain a system of personnel management, rigorous quality controls, and safety certifications to guarantee on-time delivery of error-free products.
We provide long-term technological support, starting from your first pre-sales inquiry down to system training and operational tuning on-site.
Guaranteed response for any technical query or critical system concern.
Free replacement service for any identified hardware or structural issues.
Our commitment to reliable performance is backed by global testing standards and strict quality audits.
Our core strength is driven by a highly skilled team. We bring together 6 top-tier R&D design engineers alongside 50 experienced processing technicians to ensure every cut, weld, and assembly meets strict quality standards.
We believe in building partnerships at every step of production. By implementing comprehensive environmental and quality management guidelines, we can deliver durable structural attachments on schedule.
6 High-level engineering designers driving structural innovation.
Nearly 50 professional machinists and assembly technicians.
In-house R&D and design capabilities for high-reliability systems.
Modern excavator attachments are increasingly reliant on smart electro-hydraulic controls. To meet this standard, we integrate advanced electronic control systems into our double-locking quick couplers, enabling seamless communication between the excavator cabin and multi-valve attachments.
Whether you require multi-layered controls for scrap processing shears, real-time pressure diagnostics, or customized hydraulic configurations, our engineering team has the expertise to design systems tailored to your needs. This dedication to quality ensures reliable performance on every job site.
We work with trusted shipping and logistics providers to ensure every order is securely packed, export-compliant, and delivered safely to you, wherever your job site may be.
How we maintain high manufacturing standards from raw steel sourcing to final product assembly.
Every double-locking quick coupler design undergoes Finite Element Analysis (FEA) to identify critical load paths, optimizing weld structures and pin sizing for long fatigue life.
High-grade structural steel (Q460V or equivalent) is cut using CNC plasma tables and precision-welded under temperature-controlled environments to minimize structural warping.
Fully assembled units are cycle-tested at pressures up to 350 bar to verify primary check valve functionality, manual lock override spring forces, and overall dimensional accuracy.
Yantai Huida works directly with major shipping lines to manage custom clearings and export processes without delays. By keeping critical components in stock, we offer reliable shipping times and minimize machinery downtime for our customers.
Our global shipping protocols ensure your high-value hydraulic attachments arrive in perfect condition, complete with user manuals, safety certificates, and assembly instructions.
Get answers to common technical, maintenance, and safety questions regarding double-locking quick couplers.
Complete your operations with our extensive line of heavy duty attachment equipment, engineered for long service life under tough conditions.
