EC360 Travel Gearbox 3rd Planetary Carrier Spider With Sun Gear Assy for Excavator Parts SA7117-00530 SA1036-00280

This third‑stage planetary carrier spider paired with sun gear assembly acts as the core intermediate transmission unit fitted inside the travel reduction gearbox of EC360 crawler excavators. When the machine performs heavy‑duty digging, site grading and long‑distance travel across rough terrain at mining quarries, large‑scale earthmoving and infrastructure projects, this assembly bears cyclic torque and repeated impact loads, maintaining stable power split for the whole travel final‑drive system.

Every production link strictly follows OEM dimension benchmarks and tolerance requirements. Gear tooth geometry, spline profiles and mounting positioning dimensions are fully compatible with cross‑reference part numbers SA7117‑00530 and SA1036‑00280. Direct field installation is available without extra cutting, grinding or welding modification. It effectively lowers on‑site repair workload and cuts costly machine downtime caused by long lead‑time for genuine original spare‑part supplies.

1. Dual‑PN Interchangeable Design, Purpose‑Built for EC360

   SA7117‑00530 and SA1036‑00280 share matched fitting dimensions and are mutually interchangeable. This planetary carrier assembly is engineered exclusively for EC360 travel gearbox internal layout and cannot be reused for other excavator series. Faithful reproduction of OEM geometric parameters prevents assembly clearance deviation, erratic walking vibration and premature gear deterioration after replacement.

2. Monoblock Forged Construction for Sustained Heavy‑Load Operation

   Generic low‑grade planetary carrier parts are prone to spider cracking and gear‑tooth fracture under continuous operation over stony ground. Our product adopts one‑body precision forging together with integral thermal treatment, greatly boosting shock‑resistance performance. It sustains dependable service lifespan under non‑stop heavy excavation and frequent travelling conditions.

3. Two‑Tier Pre‑Shipment Verification Avoids Unexpected Site Breakdown

   Each finished assembly goes through two independent testing workflows before leaving factory premises. Full‑set dimension calibration validates all mating tolerances; simulated travel fatigue test reproduces harsh quarry operating conditions to verify transmission stability. Flawed units are filtered out in advance to prevent unplanned equipment stand‑still losses for repair workshops and mining operators.

4. Practical Budget‑Friendly Option for Excavator Fleets & Repair Yards

   Genuine planetary drive spare parts carry high acquisition cost alongside unstable supply cycles. This aftermarket assembly delivers comparable load‑bearing performance and service cycle matching OEM parts at factory‑direct price points, helping machinery‑leasing enterprises and maintenance shops bring down recurring repair expenditure for EC360 fleets.

5. Versatile Global Shipping Solutions for International Clients

   All in‑stock goods can be dispatched within 3 working days upon payment confirmation. Air freight caters to emergency breakdown orders from remote construction zones. Consolidated sea cargo and full‑container delivery provide cost‑saving bulk procurement solutions for spare‑parts distributors covering Africa, Southeast Asia, Middle East and Latin America markets.

Our factory accumulates over 10 years of specialized R&D and mass‑manufacturing experience focusing on excavator final‑drive planetary components. Travel gearbox related spare‑parts form our mature flagship product range. We run a complete closed‑loop production chain covering alloy steel forging, precision gear processing, integral heat treatment and finished‑product load simulation evaluation. Dedicated heavy‑load test benches replicate rigorous quarry and foundation‑building working conditions to continuously improve component anti‑shock capability and long‑term durability. Our planetary gear components are exported to dozens of countries year‑round, building stable long‑term partnerships and gaining consistent positive feedback from global heavy‑machinery spare‑parts dealers.