EN
Construction machinery attachments are important supporting components that expand the operational capabilities of excavators. The grab, as one of the mainstream accessories, can change the single digging mode of excavators and adapt to the grasping, stacking, and transportation of various irregular materials. In demolition sites, material yards, forestry logging, solid waste sorting and other scenarios, ordinary buckets are difficult to stably hold long, blocky and scattered materials. The excavator grab, relying on the hydraulic clamping structure, compensates for the shortcomings of traditional buckets and enables one main machine to undertake multiple types of construction tasks.
Yantai Quansheng Machinery has been deeply engaged in the manufacturing of excavator attachments. It has developed excavator grab products based on different working conditions, covering various structural types such as multi-flange grabs, shell grabs, and wood grabs. These can be matched with multiple tonnage excavator main machines. The main body of the grab is made of wear-resistant plates, and additional reinforcement structures are added at key stressed positions to withstand the continuous impact of stones, scrap steel, and construction waste. The hydraulic cylinder, as the core driving component, is combined with sealing components to maintain stable opening and closing actions in dusty and humid construction environments, reducing leakage problems. Some models are equipped with a rotation structure, allowing for angle adjustment without moving the excavator body, enabling the adjustment of material placement posture and improving the flexibility of operations in narrow spaces.
On demolition project sites, construction waste mixed with steel bars, concrete blocks, and crushed bricks is difficult to sort and transfer manually. The excavator grab can directly grasp the mixed waste, complete the classification and stacking of materials, separate and transfer large components, and reduce the workload of on-site personnel. In forestry scenarios, the grab wood grab relies on arc-shaped claws to closely fit the contour of the logs, stably holding wood of varying lengths and completing logging and loading operations. In port and material yard operations, the shell-type grab is suitable for grasping loose materials such as sand, mud, and silt, reducing material spillage.
The equipment interface design follows universal connection standards and is paired with quick-change connectors. The disassembly and assembly process of attachments is simple, and operators can complete the switch between buckets and grabs in a short time. Quansheng Machinery controls welding and processing techniques in the production process and performs wear-resistant treatment on wear-prone parts such as pins and bushings to extend the service life of the entire machine. The company collects feedback from the front-line construction sites and continuously optimizes the arc shape of the claw body, the opening and closing stroke, and the distribution of gripping force to reduce the slipping and overloading of material grasping.
As construction machinery users increasingly value the multi-functional attributes of the main machine, they expand their business scope by replacing attachments to control equipment investment costs. After an excavator is equipped with a grab, it can undertake more types of engineering orders and reduce the expenditure on additional equipment purchases. Quansheng Machinery continuously refines excavator grab products, improves the selection service, provides suitable solutions based on the customer's operating materials and conditions, and also offers accessory supply and technical guidance to help construction machinery attachments be applied in various engineering scenarios and provide reliable equipment support for material transportation operations.
