Heavy-duty excavation demands strong and responsive swing performance. The Swing Motor Assembly for Hitachi EX1900-5 / EX1900-6 Excavator works with the swing reduction system to deliver controlled upper-structure rotation, helping maintain smooth operation, consistent hydraulic power transmission, and dependable productivity during continuous mining and large-scale earthmoving work.
Item NO.:
EX1900-5Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockA properly matched swing drive solution can reduce performance interruptions and simplify component replacement when major excavator systems require service. This EX1900-5 Swing Motor Assembly is positioned as a practical replacement option for mining equipment distributors, repair contractors, and fleet operators seeking reliable swing system components for demanding operating environments.
| Part Number | EX1900-5 |
|---|---|
| Part Name | Excavator Swing Motor Assembly |
| Compatible Brand | EX1900-5 EX1900-6 Swing Drive |
| Applicable Models | EX1900-5 EX1900-6 Excavator |
| Application | Swing drive motor for EX1900-5 EX1900-6 excavator upper structure rotation |
| Material | Precision alloy steel rotating group, sealed housing |
| Product Color | Industrial finish |
| Working Temperature | -30°C~+80°C |
| Key Function | Converts swing circuit flow into rotary torque for EX1900-5 EX1900-6 upper structure rotation |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
The EX1900-5 rotating group maintains correct clearances to keep case-drain flow within OEM limit on the EX1900-5 EX1900-6.
Brake valve set to EX1900-5 EX1900-6 deceleration spec, providing controlled swing stop without overswing.
EX1900-5 motor displacement restores the swing speed and torque the EX1900-5 EX1900-6 is designed for.
EX1900-5 flange and port configuration confirmed for the EX1900-5 EX1900-6 swing gearbox input for direct bolt-on replacement.
FAQ
Q: What symptoms indicate the EX1900-5 swing motor needs replacing on a EX1900-5 EX1900-6?
A: Swing speed progressively slower, cab overswings on deceleration, motor case-drain flow above OEM spec, and oil leaking from the swing motor seals.
Q: Does the EX1900-5 assembly include the swing gearbox?
A: This is the swing motor assembly. The reduction gearbox is a separate unit; confirm which component requires replacement before ordering.
Q: What is the pre-fill procedure for the EX1900-5 swing motor?
A: Fill the motor case with clean hydraulic oil through the case-drain port before connecting, preventing dry start that scores the new rotating group.
Q: How to confirm EX1900-5 fits my EX1900-5 EX1900-6?
A: Match the motor flange bolt pattern and port sizes. Provide the machine serial number to our team for cross-reference.
Q: What quality options are available?
A: We provide original, OEM and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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