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301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane
301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane
301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane
301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane
301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane

301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane

301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane

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Product Detail

301RC006502 Bucher Rotary Control Valve – XCMG Truck Crane Slewing Buffer Valve

The 301RC006502 rotary control valve is a genuine hydraulic component for XCMG truck crane slewing systems. This Bucher valve serves as a rotary buffer valve, managing the crane's slewing function to ensure smooth, controlled rotation of the superstructure.

This valve is part of XCMG's genuine spare parts program, for truck crane hydraulic systems . It is compatible with a wide range of XCMG QY series and XCT series truck cranes, providing reliable slewing control in demanding lifting applications.

  • Genuine OEM Quality – Manufactured to XCMG original equipment specifications for guaranteed fit and performance 
  • Slewing Buffer Function – Provides smooth start and stop of crane rotation, reducing shock loads on the hydraulic system
  • Overload Protection – Built-in buffering function protects the slewing system from pressure spikes and overload conditions
  • Free-Sliding Capability – Enables the superstructure to float and automatically align with the load center of gravity 
  • Precision Control – Allows stepless slewing speed regulation for precise load positioning 
  • Durable Construction – Designed for demanding truck crane applications with reliable long-term performance 
SpecificationDetail
Part Number301RC006502
Product TypeRotary Buffer Valve / Slewing Control Valve
ManufacturerBucher Hydraulics
Material Code803072538
ApplicationXCMG Truck Crane Slewing System 
FunctionSlewing buffering, free-sliding control, overload protection
Quality StandardOEM Genuine Part 
Warranty1 Year 

Compatible XCMG Truck Crane Models

The rotary buffer valve is compatible with the following XCMG truck crane models :

SeriesModels
QY SeriesQY20K5C, QY25K5, QY25K5-I, QY25K5-II, QY25K-II, QY25K5A, QY25K5C, QY30K5-I, QY30KC, QY35K5, QY40KC, QY50KA, QY50KC, QY55KC, QY70K-I, QY70KC, QY75K
XCT SeriesXCT16, XCT20, XCT25, XCT35, XCT55, XCT75, XCT80, XCT80L5, XCT90L5

The valve works in conjunction with the slewing brake, which is controlled by a solenoid valve. During slewing operations, the brake is released by pressure oil to allow rotation .

The 301RC006502 valve operates within XCMG's comprehensive hydraulic system for truck cranes. Related hydraulic components include :

  • Load sensitive proportional multi-way control valves
  • Impact-resistant valves
  • Anti-cavitation corrosion valves
  • Hydraulic oil coolers (air-cooled)
  • Suction and return filters
Part NumberEnglish Part NameEquipment / Application
803072538Rotary Buffer Valve / Rotary Cushion ValveXCMG QY Series & XCT Series Truck Cranes 
803078332Reversing Buffer ValveXCMG XGC55K Crawler Crane 
803078334Rotary Buffer ValveXCMG XGC55K Crawler Crane 
803000304WY-5 Rotary ValveXCMG QUY55E.00 Crawler Crane 


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Product Detail

301RC006502 Bucher Rotary Control Valve – XCMG Truck Crane Slewing Buffer Valve

The 301RC006502 rotary control valve is a genuine hydraulic component for XCMG truck crane slewing systems. This Bucher valve serves as a rotary buffer valve, managing the crane's slewing function to ensure smooth, controlled rotation of the superstructure.

This valve is part of XCMG's genuine spare parts program, for truck crane hydraulic systems . It is compatible with a wide range of XCMG QY series and XCT series truck cranes, providing reliable slewing control in demanding lifting applications.

  • Genuine OEM Quality – Manufactured to XCMG original equipment specifications for guaranteed fit and performance 
  • Slewing Buffer Function – Provides smooth start and stop of crane rotation, reducing shock loads on the hydraulic system
  • Overload Protection – Built-in buffering function protects the slewing system from pressure spikes and overload conditions
  • Free-Sliding Capability – Enables the superstructure to float and automatically align with the load center of gravity 
  • Precision Control – Allows stepless slewing speed regulation for precise load positioning 
  • Durable Construction – Designed for demanding truck crane applications with reliable long-term performance 
SpecificationDetail
Part Number301RC006502
Product TypeRotary Buffer Valve / Slewing Control Valve
ManufacturerBucher Hydraulics
Material Code803072538
ApplicationXCMG Truck Crane Slewing System 
FunctionSlewing buffering, free-sliding control, overload protection
Quality StandardOEM Genuine Part 
Warranty1 Year 

Compatible XCMG Truck Crane Models

The rotary buffer valve is compatible with the following XCMG truck crane models :

SeriesModels
QY SeriesQY20K5C, QY25K5, QY25K5-I, QY25K5-II, QY25K-II, QY25K5A, QY25K5C, QY30K5-I, QY30KC, QY35K5, QY40KC, QY50KA, QY50KC, QY55KC, QY70K-I, QY70KC, QY75K
XCT SeriesXCT16, XCT20, XCT25, XCT35, XCT55, XCT75, XCT80, XCT80L5, XCT90L5

The valve works in conjunction with the slewing brake, which is controlled by a solenoid valve. During slewing operations, the brake is released by pressure oil to allow rotation .

The 301RC006502 valve operates within XCMG's comprehensive hydraulic system for truck cranes. Related hydraulic components include :

  • Load sensitive proportional multi-way control valves
  • Impact-resistant valves
  • Anti-cavitation corrosion valves
  • Hydraulic oil coolers (air-cooled)
  • Suction and return filters
Part NumberEnglish Part NameEquipment / Application
803072538Rotary Buffer Valve / Rotary Cushion ValveXCMG QY Series & XCT Series Truck Cranes 
803078332Reversing Buffer ValveXCMG XGC55K Crawler Crane 
803078334Rotary Buffer ValveXCMG XGC55K Crawler Crane 
803000304WY-5 Rotary ValveXCMG QUY55E.00 Crawler Crane 


301RC006502 Rotary Valve Control valve BUCHER XCMG Truck Crane
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WeChat:172 6962 9279

E-mail:asher@wuchenjialianspareparts.com

Tel:+86-172 696 29279

Address:No. 667, Zhujiang Road, Xuejiadao 

Street, Huangdao District, Qingdao, Qingdao Area, China (Shandong) Pilot Free Trade Zone

Products

Excavator Parts
Wheel Loader Accessories
Bulldozer Parts
Crane Accessories
Truck Parts
Engine Parts
Transmission Parts
Road Roller Accessories
Grader Accessories
Tire

Service

Pre-Sale Consultation

Logistics Services

After-Sale Services

Downloads

Company

About Us

Contact Us

 

Industry

Mine Applications
Construction
Port Logistics
Agricultural Applications

© Copyright - 2026 Qingdao Wuchen Jialian International Trade Co., Ltd . All Rights Reserved.

© Copyright - 2026 Qingdao Wuchen Jialian International Trade Co., Ltd . All Rights Reserved.

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