One Machine with Thousand Faces - Accessories for Crawler Excavators
In modern engineering construction, crawler excavators are no longer limited to their primary job of "digging". By combining multiple attachments, a crawler excavator can easily handle various working conditions such as crushing and dismantling, intelligent loading and unloading, waste recycling, and earthwork handling. Mastering the types and applicable scenarios of attachments not only helps with precise selection, but also greatly improves operational efficiency, reduces equipment wear and tear, and overall costs.
This article will introduce each type of typical accessory system and its differences, applicable working conditions, working principles and structures, to help you select scientifically and flexibly apply them.
1、 Classification and Application of Accessories: Making Crawler Excavators Have "One Machine, Thousand Faces"
1.Hammer
Function: Hydraulic driven drill rod high-frequency impact, crushing concrete/rock.
Application: Building demolition, mining, permafrost fragmentation.
Technical highlights: 20 ton crawler excavator with heavy hammer impact energy exceeding 1500 joules; Mini excavator small hammer supports precise breaking and dismantling, reducing vibration by 30%.
2.Pallet Fork
Function: Forklift pallet goods to achieve material transfer.
Application: Warehouse building materials handling, pipe pile stacking, loading and unloading of agricultural and forestry materials.
Load capacity: The 1.8-ton mini excavator comes with a standard fork lift of 800kg; the widened fork arm of the crawler excavator can stably fork and transport 2-ton containers.
3. Lotus Grab
Function: Its main function is to capture and load various materials, such as scrap metal, industrial waste, crushed stone, construction waste, and household waste. Multi flap hydraulic closure, capturing loose materials without dead corners.
Application: River dredging, sand and gravel loading, waste recycling.
Efficiency comparison: A 35 ton crawler excavator can grab 1.5m ³ of silt with a single bucket, and the dredging amount in 8 hours is 50 manual labor.
4. Auger
Function: The hydraulic motor drives the drill rod to rotate into the formation and form a hole.
Application: Photovoltaic pile foundation, fence pillar, tree planting and drilling.
Precise control: Mini excavator with 300mm drill bit, ± 2 ° vertical accuracy, capable of drilling 300 holes per person per day.
5. Demolition Shear
Function: Double cylinder boosting shear metal structure.
Application: Demolition of steel structures, dismantling of waste vehicles, and cutting of steel bars.
Innovative design: With 360 ° rotating blade and self grinding technology, the efficiency of cutting H-beams in tracked excavators has been improved by 50%.
6. Rotating Grapple
Function: Hydraulic rotary gear achieves 360 ° omnidirectional grasping.
Application: Wood handling, stone loading and unloading, scrap sorting.
Grip optimization: The Steel Grabbing Machine is equipped with self-locking anti slip teeth, capable of grabbing 20 tons/hour of scrap steel.
7. Rotating Bucket
Function: A bucket that can rotate left and right, tilting the working surface.
Application: Slope trimming, channel shaping, V-groove excavation.
Construction advantage: Crawler excavator tilts 65 ° for slope repair, reducing the frequency of machine movement by 60%.
8. Hydraulic Magnet
Function: Electricity generates strong magnetic force to adsorb metals.
Application: Recycling of steel bars and sorting of scrap iron at demolition sites.
Safety design: De magnetize after 0.5 seconds of power outage to prevent the risk of metal falling from mini excavators in narrow spaces.
9. Bucket
Function: Basic earthwork excavation and loading.
Application: Earthwork engineering, trench excavation, material transportation.
Derivative variants: inclined bucket (slope shaping), dredging bucket (anti adhesion design), rock bucket (reinforced with wear-resistant plates).
10. Rake
Function: Multi tooth structure for separating soil and rock/cleaning root systems.
Application: Site leveling, shrub cleaning, pipeline burial.
Efficiency scenario: Mini excavator with 1.2m wide rake bucket, cleaning 500 ㎡ of shrubs in 1 hour.
11. SemiAutomatic Quick Change
Function: Hydraulic driven locking mechanism for quick switching of attachments.
Application: Frequent replacement of equipment on multi process construction sites.
Revolutionary value: The equipment switch from 40 minutes to 30 seconds, and the crawler excavator can complete 5 types of work in a single day.
12. Grapple
Function: Multi claw hydraulic closure for grabbing irregular objects.
Application: Waste recycling, forest transportation, and giant rock hoisting.
Lightweight breakthrough: Carbon fiber claw arms increase the grip of 1-ton mini excavators by 15%.
13. Ripper
Function: The sharp tooth structure breaks through hard soil layers.
Application: Excavation of frozen soil, fragmentation of weathered rocks, and deep cultivation of farmland.
Mechanical design: The arc-shaped main board guides the force, and the tooth tip introduction force of the crawler excavator is increased by 40%.
14. Root Topper
Function: Rotate the blade to cut through tree roots and shrubs.
Application: Clearing forest land, opening fire prevention belts, and leveling roadbeds.
Special adaptation: Mini excavator equipped with anti winding blade head, capable of cutting 200mm diameter tree roots during slope operation.
15. Steel Grabbing Machine
Function: Strengthen the gripping teeth and hydraulic locking to grip metal.
Application: Scrap steel plant loading and unloading, metal scrap sorting.
Industrial grade performance: A 10 ton crawler excavator can lift 2.3 tons of scrap steel and is designed to withstand high temperatures and prevent deformation.
16. Trimmer
Function: Hydraulic leveling blade for fine surface repair.
Application: Fine leveling of roadbeds, lawn maintenance, and compaction of trench sidewalls.
Precision control: The laser guidance system ensures that the edge flatness error of the mini excavator is ≤ 3mm.
17. Mechanical Thumb Clamp
Function: An auxiliary clamping device fixed to the bucket wall.
Application: Accurately grasp pipes/stones/wood.
Flexible modification: After installation, the crawler excavator can clamp 1.5m diameter concrete pipes, saving crane costs.
Summary of Technological Evolution
Lightweight: Carbon fiber fittings expand the operating radius of mini excavators by 20%
Intelligence: The adaptive flow system of the accessory (such as the LiuGong CN222415455U patent) reduces fuel consumption by 22%
Modularization: Semi automatic quick change interface supports the transformation of tracked excavators into "mobile workstations"
2、 Quick change system: achieving ultra-high efficiency breakthroughs
Traditional accessory replacement takes more than 40 minutes, while the Semi Automatic Quick Change connector compresses the switching time to within 30 seconds through a wedge-shaped locking mechanism. Its core technologies include:
Dual insurance design: front axle hook+spindle locking ring, completely eliminating the risk of accessory detachment, especially ensuring the safety of mini excavators working in narrow spaces.
Hydraulic integrated module: The Rotating Quick Coupling developed by KYUNGWONTECH in South Korea embeds a gear mechanism between the upper and lower components to achieve 360 degree rotation of the accessory. For example, a crawler excavator equipped with a rotating bucket can tilt laterally at 65 degrees to trim slopes without the need for repeated adjustments to the body.
3、 Technological evolution: dual breakthroughs in lightweighting and intelligence
1. Material upgrade
The popularization of high-strength alloy steel hydraulic cylinders has reduced the weight of equivalent performance components by 30%. The 1.8-ton mini excavator adopts a carbon fiber boom, which increases the load ratio by 10%.
Wear resistant plate application: The hydraulic scissor blades are made of detachable high toughness steel, which extends the service life by 2 times; The tooth tip of the soil loosening tool is welded with tungsten carbide, which increases wear resistance by 50%.
2. Intelligent control
Liugong belongs to the flow control system (patent number CN222415455U), which achieves millimeter level regulation through an electromagnetic valve group. After installing the system, the mini excavator's movement speed error in municipal pipeline laying is controlled within 0.2 meters per second.
Predictive maintenance: The hydraulic cylinder is equipped with built-in sensors that monitor pressure and temperature in real-time, and 5G transmission alerts for faults, reducing accidental shutdowns of tracked excavators by 60%.
4、 Future trend: From a single tool to ecological collaboration
Accessory sharing mode: Sany Heavy Industry has launched a "hydraulic system+6 accessory" rental package, with customer usage skyrocketing by 300%; Caterpillar's intelligent interface allows 1030 ton tracked excavators to share the same set of eagle beak scissors.
Human machine collaboration upgrade: Mechanical Thumb Clamp combined with artificial intelligence, self-learning and grasping parameters through historical data. Tests have shown that mini excavators equipped with AI grab buckets can reduce the damage rate of seedling transplantation by 90%.
By equipping diversified attachments, tracked excavators have transformed from a single "digging tool" to a "multifunctional work platform" that integrates demolition, loading and unloading, screening, handling, and drilling. Whether in urban demolition, resource recycling, or high-intensity scenarios such as mining and infrastructure construction, the flexible combination of equipment greatly expands the application boundaries and construction efficiency of equipment. We adhere to customer-oriented working conditions and continuously provide customized accessories and complete machine solutions. In the future, we will continue to use professional tools to assist customers in conquering more complex working conditions and jointly expand the global engineering landscape.
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