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RITO Swing Motor with Gearbox 4440905 EX1900-5 MX750 4439383 Mining Excavator 9217606 Swing Motor Gearbox Slewing Motor Unit

RITO Swing Motor with Gearbox 4440905 EX1900-5 MX750 4439383 Mining Excavator 9217606 Swing Motor Gearbox Slewing Motor Unit

Facing swing delay, gearbox wear, or unstable slewing performance in EX1900-5 mining excavator fleets? For mining contractors, heavy equipment distributors, and maintenance specialists, a reliable swing motor gearbox unit is essential to maintain large-scale excavation productivity and reduce costly downtime. RITO Swing Motor with Gearbox 4440905 EX1900-5 MX750 provides stable torque transmission and efficient hydraulic power conversion for smooth and dependable excavator swing operation in extreme mining environments.

Item NO.:
4440388
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 gearbox units, it delivers consistent power transfer, improved gear engagement stability, and reliable performance during continuous heavy-load mining cycles. Designed for OEM/OEM-equivalent replacement supply, it supports bulk procurement and dependable compatibility across open-pit mining, quarrying, heavy construction, and large earthmoving applications.

Product Specifications

Item	Parameter Details
Main Part Number	4440905
Cross OEM PN	4439383, 9217606
Built-in Hydraulic Motor Model	MX750
Full Product Name	Mining Excavator Swing Motor with Reduction Gearbox, Slewing Drive Motor Unit Assembly
Compatible Brand	HITACHI
Applicable Excavator Model	EX1900-5 Ultra-Large Open-Pit Mining Excavator
Application	Upper carriage slewing hydraulic drive system for large-scale ore stripping, hard rock blasting excavation, bulk mineral loading and mine stockyard operation
Raw Material	Super thick forged high-strength alloy steel + ultra-heavy load wear-resistant bronze friction accessories
Surface Coating	Heavy-duty matte anti-rust industrial gray coating with outstanding anti-corrosion & dust resistance for mine sites
Operating Temperature Range	-22℃ ~ +58℃
Core Function	Convert ultra-high hydraulic pressure into stable extreme heavy slewing torque to rotate giant mining excavator upper body for high-intensity round-the-clock open-pit mining production
Product Condition	100% New Aftermarket / OEM Replacement / Remanufactured Optional
Export Packaging	Extra reinforced thick solid wooden mining-grade case / Steel frame double reinforced carton / Neutral packing / Customized ultra-large mining machinery spare parts export package

Key Features & Advantages

Integrated Motor & Gearbox Structure

Combines hydraulic motor and reduction gearbox for efficient swing control and reliable power transmission.

High-Torque Mining Performance

Provides strong rotary force for EX1900-5 heavy-duty mining excavator operations.

Heavy-Duty Gear Reduction System

Designed for continuous operation under high-load excavation conditions.

OEM-Compatible Assembly Standard

Matches 4440905 / MX750 / 4439383 / 9217606 specifications for EX1900-5 systems.

FAQ

Q: What are the common symptoms of an EX1900-5 swing motor gearbox problem?
A: Slow swing response, abnormal gearbox noise, unstable rotation, oil leakage, and reduced torque output may indicate internal motor or gear wear.

Q: Why choose a swing motor with gearbox assembly for EX1900-5 mining excavators?
A: The integrated motor and gearbox design provides efficient power matching, high torque output, and reliable performance for heavy-duty mining operations.

Q: What should be checked before installing a 4440905 swing motor gearbox unit?
A: Inspect hydraulic oil cleanliness, verify system pressure, and check gearbox mounting and related swing components before operation.

Q: What factors affect the service life of an EX1900-5 swing drive motor?
A: Continuous heavy loads, hydraulic contamination, insufficient lubrication, and harsh mining environments can accelerate component wear.

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

Related Tags :

4440388

Swing Motor

MX750 Swing Motor

EX1900-5 Swing Motor

Hydraulic Swing Motor

Rotary Drive Unit

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Subject : RITO Swing Motor with Gearbox 4440905 EX1900-5 MX750 4439383 Mining Excavator 9217606 Swing Motor Gearbox Slewing Motor Unit

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