Komatsu 30 Final Drive
Product Overview
Komatsu 30 FINAL DRIVE is a complete Travel Assembly integrating heavy‑duty Hydraulic piston motor and planetary reduction gear unit. This integrated hydraulic motor provides crawler driving power for Komatsu 30 mini excavator, acting as the core execution component of the whole hydraulic system for compact construction Machine.
This FINAL DRIVE is available with genuine NACHI original version and high‑quality aftermarket replacement. It adopts compact integrated structure with built‑in multi‑disc parking brake, achieving high‑torque output within limited installation space. It solves common faults including weak travel power, slow speed, track deviation, oil leakage and abnormal noise. Please note this Travel Assembly serves for crawler traveling, which is totally different from SWING REDUCER that drives upper‑body rotation of the Machine.
Technical Specifications
‑ Model: Komatsu 30 Final Drive
‑ Product Type: Complete FINAL DRIVE Travel Assembly, assembled with Hydraulic piston motor and planetary reducer, heavy‑duty hydraulic motor
‑ Applicable Equipment: Komatsu 30 mini crawler excavator
‑ Built‑in Component: Multi‑disc parking brake
‑ Rated pressure: Matches original design parameters of excavator hydraulic system
‑ Mounting interface & oil port: Fully interchangeable for Komatsu 30 Machine
‑ Working fluid: Anti‑wear hydraulic mineral oil for construction machinery hydraulic system, ISO‑VG46 recommended
‑ Operating oil temperature: ‑20℃ ~ +80℃
‑ Key Features: Compact layout, high output torque, integrated parking brake, reliable sealing performance, drop‑in installation, stable performance under complex working conditions of mini‑excavator Machine.
Working Principle
Pressurized hydraulic oil delivered by the excavator hydraulic system enters the internal Hydraulic piston motor of the FINAL DRIVE. Hydraulic pressure energy is converted into mechanical rotating torque. The planetary gear set inside this Travel Assembly amplifies torque to drive the crawler track, realizing forward, backward and steering movement of the Machine.
The built‑in parking brake locks output shaft when travel action stops, preventing track sliding on slope ground. Once internal parts of Hydraulic piston motor, gear components or friction plates get worn, the hydraulic motor will generate internal leakage, insufficient traction and abnormal noise. Replacing the whole Komatsu 30 FINAL DRIVE can restore full working performance of the hydraulic system.
Important distinction: SWING REDUCER is responsible for upper‑structure slewing, not for track travel drive.
Core Advantages
1. Standard interchangeable dimension, direct fit for Komatsu 30 Machine, no modification required for existing hydraulic system.
2. Compact planetary structure inside FINAL DRIVE, delivers large driving torque even for small‑size mini excavator.
3. Reliable integrated parking brake, effectively avoids slipping on slope sites, enhances operation safety of the whole hydraulic system.
4. Complete pre‑assembled Travel Assembly, simplifies on‑site overhaul and shortens downtime of the Machine.
5. High‑strength alloy gear parts and wear‑resistant motor components, adapts to municipal, farm and other harsh working environments.
6. Both genuine NACHI original and qualified aftermarket options are available to meet different procurement demands for hydraulic system maintenance.
Application Range
Komatsu 30 FINAL DRIVE is the essential crawler‑driving Travel Assembly equipped with Hydraulic piston motor and hydraulic motor, for Komatsu 30 mini excavator hydraulic system. Widely used in municipal renovation, farm engineering, indoor demolition and narrow‑site construction scenarios of compact construction Machine. Well‑received by repair workshops, equipment dealers and global spare‑parts distributors.
