Hyundai excavator swing slow, uncontrollable or motor overheating? A worn 31N6-10210 swing motor allows internal bypass that builds heat faster than the cooler can reject it, progressively degrading swing response until the circuit reaches thermal shutdown. RITO's precision swing motor restores correct bypass clearance, bringing oil temperature back into the normal operating band.
Item NO.:
31N6-10210-OTOrder(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time:
In Stock31N6-10210 Hydraulic Swing Motor (Single Motor Unit) for Hyundai excavator. This is the motor-only unit without integrated gearbox reduction, fitted where the swing planetary gearbox is a separate assembly. Precision cylinder block, piston shoes and valve plate restore motor volumetric efficiency; the calibrated brake valve restores correct swing deceleration torque without cab overswing.

| Part Number | 31N6-10210 |
|---|---|
| Part Name | Hydraulic Swing Motor (Single Motor) |
| Compatible Brand | Hyundai |
| Applicable Models | Hyundai Excavator Swing Circuit |
| Application | Standalone hydraulic swing motor driving the separate swing planetary gearbox |
| Material | Precision alloy steel rotating group, sealed motor housing |
| Product Color | Industrial finish |
| Working Temperature | -30°C~+80°C |
| Key Function | Converts swing circuit hydraulic flow into rotary torque input to the separate swing gearbox |
| Condition | 100% New Aftermarket OEM Quality |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |

Cylinder block-to-piston shoe clearance maintained within OEM limits to keep case-drain flow below specification and oil temperature within the normal operating band.

Brake valve relief pressure set to OEM specification for the 31N6-10210 circuit, providing the correct swing deceleration ramp without abrupt cab stop or overswing.

Standalone motor design allows replacement of the motor without disturbing the separate swing gearbox when gearbox inspection confirms it remains serviceable.

Port sizes, case-drain port location and motor flange bolt pattern confirmed for Hyundai swing motor mounting for direct bolt-on replacement.

FAQ
Q: How do I confirm the 31N6-10210 swing motor has failed rather than the gearbox?
A: Measure motor case-drain flow at rated swing speed. If case drain exceeds OEM spec (typically 8-12 L/min for a motor this size) with normal gearbox oil condition, the motor rotating group is worn and the 31N6-10210 motor needs replacement.
Q: Can I replace 31N6-10210 swing motor without removing the swing gearbox?
A: Yes. The motor disconnects from the gearbox input flange independently. Inspect the gearbox input shaft and oil before refitting to confirm the gearbox is serviceable.
Q: What is the correct case-drain connection procedure for 31N6-10210?
A: Fill the motor case with clean hydraulic oil through the case-drain port before connecting it to the drain line. This pre-fills the motor and prevents a dry start that would score the new rotating group.
Q: How to confirm 31N6-10210 fits my Hyundai excavator?
A: Match hydraulic port sizes, motor case bolt pattern and case-drain port position. Provide the excavator model and 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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