Special connecting bolts for construction machinery have completed working condition verification and are suitable for high loss connection requirements of heavy-duty equipment

2026-07-15 09:21:51

In response to the characteristics of strong impact, high wear, and complex connection conditions in heavy construction machinery such as excavators and loaders, dedicated high-strength connecting bolts have been completed for full condition simulation verification and officially launched in bulk on the market. This series of products focuses on vulnerable connection parts such as Bucket teeth, buckets, and track frames. From structural design, material selection to surface treatment, targeted optimization is carried out, which can effectively reduce the probability of bolt fracture and loosening under heavy load operations and extend the equipment maintenance cycle.

In terms of structural design, the dedicated matching bolts for bucket teeth adopt a countersunk fitting structure, which fits smoothly with the installation surface after assembly, reducing direct erosion and wear of sand, gravel, and materials during operation, and avoiding difficulties in disassembly due to head damage caused by collisions. In terms of material, high-strength alloy structural steel is selected, which combines surface hardness and core toughness after quenching and tempering heat treatment, and can withstand repeated impact loads without easy brittle fracture. The threaded part adopts precision rolling technology, combined with compatible anti loosening Nut components, to maintain stable pre tightening force under continuous vibration conditions.

In response to the corrosion requirements of outdoor operations, this series of bolts can be matched with various surface treatment solutions such as hot-dip galvanizing and Dacromet. The salt spray anti-corrosion duration can be adapted to different climatic environments in different regions. At present, the product has completed installation verification on multiple excavator and loader models, and the connection stability and service life meet the requirements for use. It can directly replace imported accessories of the same specifications, reducing customer maintenance and procurement costs.

We will continue to follow up on the equipment upgrade needs in the field of construction machinery, refine specialized fastener solutions for different parts and working conditions, and provide more suitable connection products for construction machinery manufacturing and aftermarket operation and maintenance.