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RITO Swing Motor 121-1564 1211564 Heavy Duty 320B 320BL 320B L 321B E320B 320C Excavator Slewing Motors Assemblies

Jerky upper-structure rotation and imprecise stopping alignment make precision swing placement impossible on busy jobsites. When slewing motor drive groups lose volumetric efficiency, excavators drift past dump targets, threatening ground crew safety. Keep your 320B, 320BL, or 320B L excavators from suffering costly rotational lag.

  • Item NO.:

    121-1564
  • Order(MOQ):

    1
  • Payment:

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

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details

Achieve fluid, pinpoint upper deck command with the RITO Swing Motor 121-1564. This Heavy Duty Slewing Motors Assembly pairs an advanced axial piston motor with an integrated hydraulic brake network, ensuring smooth acceleration and crisp stopping control for 321B, E320B, and 320C models, maximizing reliability for heavy parts distributors.

121-1564 Swing Motor

 
Product Specifications

Part Number  121-1564 / 1211564
Part Name Excavator Slewing Motor Assembly
Compatible Brand CAT
Applicable Models 320B, 320BL, 320B L, 321B, E320B, 320C
Application Excavator hydraulic system
Material Heavy Duty Structural Nodular Cast Iron
Product Color Premium Equipment Yellow
Working Temperature -25 to 110 degrees Celsius
Key Function Upper Structure 360-Degree Rotation Drive and Braking
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

High-Torque Swashplate Piston Design

delivers continuous rotational force, allowing smooth slewing acceleration even when carrying fully loaded buckets.

Leak-Free

Integrated Hydraulic Braking Valves

stop upper chassis inertia immediately upon control lever release, preventing dangerous rotational over-travel.

Direct Fitment

Heavy-Duty Output Shaft Bearings

absorb high radial shocks during swing-stop movements, eliminating housing shaft play or gear misalignment.

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: Fault Diagnosis: What mechanical symptoms confirm that an excavator swing motor's internal mechanical brake is failing to hold?
A: If the upper cabin chassis continuously drifts when parked on slight inclines, or if rotation over-travel happens after releasing control levers, the brake discs are worn.
 
Q: Installation: Why must service mechanics verify the cleanliness and routing of the swing motor case drain line?
A: A blocked or restricted case drain line spikes internal housing pressure instantly, causing the main shaft seal to blow out and leaking motor oil everywhere.
 
Q: Compatibility: Will this replacement slewing motor bolt directly onto standard factory ring gear housings?
A: Yes, part 121-1564 aligns perfectly with OEM mounting hole circles, splines, and plumbing interfaces on Caterpillar 320B and 320C medium machinery.
 
Q: Extreme Environment Performance: How does this slewing assembly avoid overheating during high-frequency dumping cycles?
A: Built with highly efficient internal oil galleries, the assembly lowers mechanical drag and promotes continuous casing cooling, preventing oil thinning under intense continuous swinging.
 

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.

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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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