Transmissão final travel motor 2A1-60-11100 para mini-escavadora Komatsu PC26MR-3

OEM Final Drive Travel Motor for Komatsu PC26MR-3 | Part No. 2A1-60-11100

1. Product Overview
The 2A1-60-11100 is a precision-integrated propulsion unit consisting of a two-speed variable displacement axial piston motor and a multi-stage planetary reduction gearbox. As the primary drive for the Komatsu PC26MR-3, this unit is designed to handle the weight and hydraulic flow of the Minimum Radius (MR) chassis. With 13 years of specialized experience in hydraulic transmissions, we ensure these drives provide the high tractive effort and smooth tracking required for precise maneuvering in confined urban jobsites.

2. Comprehensive OEM Part Number Compatibility
This assembly is a direct "bolt-on" replacement for the following Komatsu factory part numbers:

Primary Part Number: 2A1-60-11100 / 2A16011100

Alternative Numbers: 2A1-60-11101, 22K-60-13101 (Please verify via serial number)

Manufacturer Ref: Often manufactured by Teijin Seiki/Nabtesco or Nachi to Komatsu specifications.

Machine Fitment:

Komatsu PC26MR-3

Komatsu PC26MR-3-B

(Also compatible with select PC20MR-3 and PC27MR-3 variants; serial number verification is recommended).

3. Technical Specifications
Motor Type: Two-speed axial piston motor with integrated high/low speed switching.

Reduction System: Multi-stage planetary gears manufactured from induction-hardened alloy steel for maximum service life.

Max Working Pressure: Rated for continuous operation at 25.0 MPa (250 bar) to maintain original factory tracking power.

Sealing Technology: Features premium "Duo-Cone" (Mirror) mechanical floating seals to protect the internal gearbox from mud, water, and grit.

Braking System: Integrated spring-applied, hydraulic-release wet disc parking brake for failsafe operation on slopes.

4. Why Partner With a 13-Year Industry Expert?
Performance Calibration: We understand the specific hydraulic balance of Komatsu’s CLSS (Closed-center Load Sensing System). Our units are calibrated to ensure your machine tracks perfectly straight without "drifting."

Rigorous Bench Testing: Every unit undergoes a 100% performance test on a hydraulic bench. We verify volumetric efficiency, brake holding torque, and smooth 2-speed shifting before the unit is crated.

Factory-Direct Value: Access Original New or Premium OEM-spec units at competitive wholesale prices, providing a high-quality alternative to expensive dealership markups.

Global Rapid Logistics: Units are secured in reinforced, shock-proof export wooden crates. Express delivery via DHL, FedEx, or UPS typically arrives in 3 to 7 business days.

5. Critical Installation & Maintenance Protocol
Gear Oil Commissioning (Crucial): Final drives are typically shipped without gear oil. You must fill the planetary gearbox with SAE 80W-90 gear oil to the correct level before operation.

Case Drain Integrity: Ensure the motor’s case drain line is clear and connected correctly. High backpressure in the motor case is the leading cause of shaft seal failure and catastrophic motor damage.

Hydraulic System Flushing: If the previous motor failed due to internal breakage, you must flush the hydraulic tank and lines. Residual metal shavings are the primary cause of premature failure in replacement motors.

Air Bleeding: After installation, lift the track off the ground and run the motor at low speed in both directions for several minutes to purge air from the hydraulic circuit.

6. Ordering & Professional Support
Fitment Verification: To ensure 100% accuracy, please provide your Machine Serial Number and the number of sprocket mounting holes (commonly 9 or 12).

Instant Quote: Contact us today for up-to-date pricing, tiered quality options, and current stock availability.

Technical Guidance: Our expert team is available 24/7 to provide professional advice on installation, pressure settings, and troubleshooting.