Products

RITO 1709893 Swing Motor 312D 312C 313D Slewing Motor Assembly 1709893 Hydraulic Swing Motor Excavator Rotary Motor

Excessive house drifting and poor braking control on 312D excavators mean your hydraulic swing motor is losing internal pressure. Weak swing torque slows down trenching work and increases project safety risks. Fix these operational issues quickly by replacing worn units with our 312C slewing motors.

  • Item NO.:

    1709893
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Designed for high performance, our 313D rotary motors provide fast acceleration and smooth stopping power for precise handling. This reliable operation gives international parts suppliers a dependable product that lowers warranty claims. Upgrade your motors to improve overall fleet safety.

1709893 Swing Motor

 
Product Specifications

Part Number  1709893
Part Name Hydraulic Swing Motor
Compatible Brand CAT
Applicable Models Caterpillar 312D / 312C / 313D
Application Excavator hydraulic system
Material High-Strength Forged Alloy Steel
Product Color Industrial Yellow
Working Temperature -40°C to 120°C
Key Function Converting high-pressure hydraulic fluid flow into rotational mechanical speed to drive the swing gearbox
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Efficiency Piston Groups

deliver smooth rotational torque, eliminating jerky house movements during precision lifting.

Leak-Free

Integrated Time-Delay Brake Valves

ensure smooth, drift-free parking even when stopping on steep construction slopes.

Direct Fitment

Hardened Swash Plate Bores

reduce sliding friction, preventing heat buildup during non-stop swing operations.

Rigorous Testing

Global Supply Tiering

We offer Original, OEM, and high-performance Aftermarket options to provide flexible procurement strategies for diverse regional markets.

 

Excavator Hydraulic Part

FAQ


Q: Why must the motor case drain line be connected directly back to the hydraulic oil tank?
A: The case drain vents normal internal bypass oil. Connecting it directly keeps internal case pressure low, preventing the high-pressure shaft seal from blowing out.

Q: How do we fix a swing motor that hesitates when rotating in only one direction?
A: This issue is usually caused by a stuck internal relief valve spool. Remove and clean the valve assembly, then check for smooth movement to fix the rotation.

Q: Are the internal pistons and cylinder blocks sold as a pre-matched assembly?
A: Yes, our piston groups are factory-lapped together. This precise matching ensures high volumetric efficiency and prevents early pressure loss.

Q: Can this motor operate reliably using eco-friendly biodegradable hydraulic fluids?
A: Our standard sealing materials are compatible with most synthetic and mineral oils, including common biodegradable hydraulic fluids.
 
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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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Leave A Message

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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