EN
The construction site conditions vary greatly, and the hardness and form of the materials are different, which pose different requirements for the structural strength and clamping stability of the grab. Ordinary grabs are prone to problems such as claw body deformation and accelerated wear at the hinge connection position under continuous impact and heavy-load grasping scenarios, which affect the continuity of construction. In response to the pain points of construction sites, Qian Sheng Machinery has optimized the structural design of the excavator grab, selected better materials and processing techniques, and improved the performance of the equipment in complex environments.
The excavator grab of Qian Sheng Machinery adopts a split claw body structure. The contour of the claw flaps has been optimized to increase the contact area when grasping irregular materials, reducing the probability of material slippage. The hinge connection position uses a wear-resistant bushing to reduce the wear caused by the long-term reciprocating rotation of the pin shaft and reduce the frequency of equipment maintenance. The hydraulic drive system has a smooth response and controllable opening and closing actions, allowing operators to adjust the clamping force according to the type of materials, reducing the impact of crushing and impact when handling fragile materials, and maintaining a stable clamping effect when handling heavy materials. The grab with a rotating function has a strengthened rotating support, capable of withstanding lateral loads and maintaining smooth operation during repeated rotation operations.
Different scenarios have distinct requirements for the type of grab. Multi-flap grabs are suitable for scattered and irregular materials such as scrap steel and miscellaneous materials, and are more suitable for handling scrap metals and garbage sorting operations through coordinated wrapping of materials. Shell grabs have a larger cavity volume and are suitable for river dredging, sand and stone loading, and soil extraction from foundation pits. The arc-shaped claw body of the wood-grab fits the original wood, and the force on the wood is distributed evenly, preventing the wood from slipping or cracking. Qian Sheng Machinery can adjust the number of claw flaps, opening size, and structural thickness according to the user's usage scenarios, providing suitable accessory solutions that fit different-tonnage excavator mainframes.
In the production and manufacturing process, the enterprise strictly controls each process such as sheet cutting, welding, and machining. Weld seams undergo non-destructive testing to avoid structural hazards caused by welding defects. Before the products leave the factory, load-bearing and load-free tests are carried out to inspect the opening and closing actions, rotation operation, and sealing performance. After passing the inspection, the equipment is delivered to the customer. At the same time, a spare part supply service is provided. When the bushing, tooth plate, and other components are worn, they can be replaced quickly, reducing the downtime of the equipment.
In the construction machinery industry, the durability of the accessories directly affects the project schedule. Many construction units, in addition to basic grasping capabilities, pay more attention to the long-term stability and maintenance convenience of the product when choosing grab products. Qian Sheng Machinery continuously communicates with construction projects, recycling resources, forestry, and other industry customers, collects on-site usage data, iterates product details, optimizes the force-bearing structure of the grab, and reduces the failure probability during use. Relying on accessory manufacturing experience, it continuously improves the series of excavator grab products to facilitate various material grasping operations and help construction units expand business scenarios and improve on-site material handling efficiency.
