重型动臂枢轴接头在长期使用后会产生磨损，导致连接间隙与对中失准。这不仅会降低设备挖掘效率，更可能引发安全隐患。

解决方案： Expander® 膨胀销专为定制化设计，可有效消除枢轴磨损，恢复动臂枢轴等大型连接副及磨损部位的原始结构配合精度——整个过程无需焊接或镗孔加工。

Swing racks and pinion retainer bolts are subjected to continuous rotational loading and shock, which can cause bolts to loosen and welds to crack.

Solution: Superbolt® tensioners apply consistent preload on swing rack segments and support structures, replacing torque-intensive methods. Boltight® hydraulic tools ensure even preload during rebuilds or replacements