Kato HD1430 Travel Gearbox 2nd Planetary Carrier Spider With Sun Gear Assy for Excavator Parts

This secondary planetary carrier integrated sun gear set acts as the mid-stage torque conversion core inside Kato HD1430 travel reducer, compatible with HD1430-2 and HD1430-3 excavators. This Japanese heavy-duty digger is widely deployed in hard rock quarries, large-scale land reclamation and mountain road construction, enduring frequent alternating torque during frequent turns, uphill travel and heavy rock digging.

Sitting between the first and third planetary groups, the 2nd stage bears intermediate load transmission and shares impact pressure from the hydraulic motor. Once the carrier spider arms crack, sun gear tooth surfaces pit or internal connecting splines wear down severely, the machine will produce uneven track speed, weak climbing power, constant metallic grinding noise and abnormal heat buildup of the travel motor, halting all construction work.

Our product strictly follows Kato original dimensional standards for gear tooth profile, spline matching tolerance and mounting hole positioning. It is a direct replacement part without cutting, drilling or modifiion on site, greatly shortening maintenance downtime. Compared with high-priced original Kato spare parts with long delivery cycles, this aftermarket assembly delivers equivalent durability at factory wholesale prices, suitable for mine fleets, equipment repair shops and overseas spare parts dealers.

1. 100% OEM size matching, exclusive for Kato HD1430 travel gearbox, no cross-model applicability

   This planetary assembly is customized according to the internal structure of HD1430 travel reducer, cannot be installed on other Kato models such as HD1250-7 or HD700. The precise repliion of original spline and gear meshing gaps avoids track deviation, walking jitter, abnormal internal friction noise and premature wear of matched transmission parts after installation, compatible with both HD1430-2 and HD1430-3 without extra accessories.

2. Integral thick one-piece forging design, long service life under continuous heavy mining loads

   Low-cost generic planetary carriers are prone to broken spider arms and broken gear teeth under round-the-clock heavy mining work. Our integrated thick die forging combined with full constant temperature heat treatment greatly improves impact resistance and fatigue resistance. It maintains stable torque transmission during uninterrupted rock excavation and long-distance site transfer, reducing the overhaul frequency of travel gearboxes for rental and second-hand excavator owners.

3. Dual strict pre-delivery inspection to avoid economic losses from unexpected machine shutdown

   Each finished assembly undergoes two independent closed-loop inspection procedures before leaving the factory. Full-size calibration checks all matching tolerances of gear surfaces and inner splines; simulated quarry heavy torque aging test simulates extreme working conditions to verify long-term transmission stability. All defective semi-finished products are screened out in advance, helping repair shops and mine owners reduce loss risks caused by sudden equipment downtime.

4. Cost-effective aftermarket alternative to original Kato spare parts to cut maintenance costs

   Genuine Kato planetary transmission spare parts have high import costs and unstable supply cycles for HD1430, a widely circulated heavy excavator in overseas markets. Our aftermarket assembly achieves the same load-bearing capacity and service life as OEM parts at factory direct prices, effectively lowering annual maintenance costs for enterprises with multiple HD1430 devices.

5. Multiple global logistics options for international construction machinery spare parts wholesalers

   All in-stock goods can be shipped within 3 working days after payment confirmation. Air freight meets urgent emergency repair orders in remote mountain mines; consolidated bulk sea freight and full-container transportation provide cost-saving bulk purchase plans for distributors covering Southeast Asia, Africa, the Middle East and Central Asia.

Our factory has more than 15 years of R&D and mass production experience in Japanese brand excavator travel motor planetary spare parts, with Kato HD series planetary carrier assemblies as our core star product. We have a complete closed-loop production line including alloy steel die forging, 5-axis precision gear processing, constant temperature professional heat treatment and finished product heavy-load simulation testing. Self-developed heavy torque test benches simulate harsh quarry and mountain construction environments to continuously optimize product shock resistance and extend service life. Our planetary gear spare parts are exported to more than 50 countries and regions worldwide, maintaining long-term stable cooperative relations with global construction machinery spare parts wholesalers.