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RITO 4470057 Swing Motor Assembly ZX85US 4469027 Excavator Hydraulic Slewing Motor Rotary Drive Unit Swing Drive Motor

RITO 4470057 Swing Motor Assembly ZX85US 4469027 Excavator Hydraulic Slewing Motor Rotary Drive Unit Swing Drive Motor

Facing swing instability, hydraulic response delay, or reduced slewing performance in ZX85US excavator fleets? For construction contractors, equipment distributors, and maintenance specialists, a reliable swing motor assembly is essential to maintain machine efficiency and reduce unexpected downtime. RITO 4470057 Swing Motor Assembly ZX85US delivers stable torque output and efficient hydraulic-to-rotational conversion for smooth and dependable excavator swing operation.

Item NO.:
4470057
Order(MOQ):
1
Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPAL
Product Origin:
JAPAN
Lead Time：
2-3 DAYS

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Product Details

Compared with standard aftermarket swing motor assemblies, it provides consistent power transmission, stable rotary control, and reliable performance during continuous excavation cycles. Designed for OEM/OEM-equivalent replacement supply, it supports bulk procurement and dependable compatibility across construction, landscaping, utility, and earthmoving applications.

Product Specifications

Part Number	4470057 / 4469027
Part Name	Excavator Hydraulic Slewing Motor Rotary Drive Unit Swing Drive Motor Swing Motor Assembly
Compatible Brand	HITACHI
Applicable Models	ZX85US Mid-Mini Compact Excavator for Urban Narrow Construction & Light Quarry Works
Application	Excavator upper body slewing rotary hydraulic drive system
Material	High-strength alloy steel + wear-resistant bronze friction accessories
Product Color	Matte anti-rust industrial metallic gray
Working Temperature	-22℃ to +58℃
Key Function	Convert medium hydraulic pressure into stable medium-light slewing torque to drive compact excavator upper body rotation for urban road renovation, pipeline excavation, small foundation works and light aggregate loading projects
Condition	100% New, Aftermarket / OEM Quality
Packaging	Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

Key Features & Advantages

Stable Rotary Torque Output

Provides smooth and reliable swing force for ZX85US excavator operations.

Efficient Hydraulic Power Conversion

Converts hydraulic pressure into controlled rotary movement with reliable efficiency.

Durable Excavator-Grade Structure

Designed for long-term operation in demanding construction environments.

OEM-Compatible Assembly Standard

Matches 4470057 / 4469027 specifications for ZX85US excavator swing systems.

FAQ

Q: What are the common symptoms of a ZX85US swing motor assembly problem?
A: Slow swing speed, unstable rotation, abnormal vibration, oil leakage, and reduced torque output may indicate internal motor or gearbox wear.

Q: What should be checked before installing a 4470057 swing motor assembly?
A: Inspect hydraulic oil cleanliness, confirm system pressure, and verify mounting connections before operation.

Q: How does a hydraulic slewing motor improve ZX85US excavator performance?
A: It converts hydraulic energy into controlled rotary movement, providing stable torque for smooth upper structure rotation.

Q: What factors can affect the service life of a ZX85US rotary drive unit?
A: Heavy workloads, contaminated hydraulic oil, insufficient maintenance, and harsh operating conditions can accelerate component wear.

A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies

Related Tags :

4470057

Swing Motor

Hitachi Swing Motor

ZX85US Swing Motor

Excavator Rotary Motor

Swing Reduction Unit

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Subject : RITO 4470057 Swing Motor Assembly ZX85US 4469027 Excavator Hydraulic Slewing Motor Rotary Drive Unit Swing Drive Motor

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