
ABOUT US
Guangzhou Xingfan Precision Oil Pressure Co., Ltd. focuses on the after-market hydraulic maintenance and replacement of construction machinery including excavator, rotary drilling rig, pile driver, concrete mixer, delivery pump truck, crane, harvester and other equipment. Including hydraulic pump, traveling motor, rotary motor, distribution valve multi-way valve, gear pump, operating handle, walking foot valve, etc.

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FAQ
Q1: Is this swing motor gearbox compatible with my Kobelco SK140-8?
Yes, this rotary gearbox assembly is specifically designed for Kobelco SK140-8 crawler excavators. Please provide your machine serial number for exact fitment confirmation within 24 hours.
Q2: What components are included in the assembly?
The assembly includes the swing motor housing, rotary gearbox, drive gears, bearings, seals, and mounting hardware. A detailed parts list is provided with every order for installation reference.
Q3: What material is used for the gearbox components?
Internal gears are precision-cut from hardened alloy steel with heat treatment for wear resistance. The housing is cast from high-strength ductile iron. All components undergo dimensional and hardness inspection before assembly.
Q4: Do you provide installation guidance for the swing motor gearbox?
Yes, our engineers can provide installation instructions, torque specifications, and troubleshooting support via video call or email. Proper installation ensures optimal swing performance and prevents premature wear.
Q5: What is the warranty and delivery time?
We offer a 3-month warranty on all swing motor gearbox assemblies. Standard delivery is 15-30 days with export-standard packaging. Payment via T/T, Western Union, or PayPal is accepted.