At "Tonkee Machinery Co.,Ltd.", we understand that the heart of any efficient excavation operation lies in the reliable performance of its critical components. That's why we're proud to offer an extensive range of high-quality "swing motors, swing gearboxes, and final drive assemblies" designed to keep your heavy machinery running smoothly and powerfully.
Whether you're operating a "KOMATSU, KOBELCO, VOLVO, HITACHI, CAT, DAEWOO, or DOOSAN" excavator, our comprehensive inventory is meticulously curated to meet your specific needs. We stock both brand new and meticulously inspected original used parts, ensuring you have access to the best options for your budget and operational demands.

A well-functioning "swing device" is paramount for precise and efficient digging and loading. Our selection includes top-tier components like the "KOMATSU PC120-6 swing motor assy" and "PC60-7 swing unit", renowned for their durability and performance. For KOBELCO operators, we offer "SK250-8 Swing gearboxes" and "reduction gears" that guarantee smooth rotation and long service life. Similarly, VOLVO owners can benefit from our "EC360B Swing gearboxes (14619955)" and "EC290B swing reduction gear devices (VOE 14542165)", available in both new and original used conditions to suit various requirements.
HITACHI excavators, such as the "ZAXIS 330-3" and "EX270", will find their ideal "swing reduction gearboxes" and "swing motor assy" in our inventory, ensuring optimal speed rotation and reliability. For CAT machinery, our offerings include "CAT 312C swing drive GP (169-5569)", "CAT320B swing motor (M2X170CHB-11A-21/280, 115-3756)", "cat 320c swing motor (M5X180CHB-10A)", and the powerful "CAT365 swing motor (M2X210CHB-14A-10/318, 295-9437)", ensuring robust and consistent swing operations.
Beyond swing components, we also specialize in high-performance "final drive assemblies" and "travel motor assys". These critical parts are the backbone of your excavator's mobility. We offer brand new "207-27-00371, 207-27-00370, 207-27-00260 final drive assemblies" for "KOMATSU PC300-7, PC350-7, and PC360-7 excavators". Additionally, our inventory includes new "GM20VL-P-3356-3 (11C0347) travel motor assys" suitable for "SANY SY135, LIUGONG CLG915D, and XE150" models, ensuring smooth and powerful travel across any terrain.
For DAEWOO and DOOSAN operators, we provide essential components like the "DAEWOO DH220-9 swing reduction", "DOOSAN S220-5 swing reductor device", and "DAEWOO DH220LC DH220-9 swing motor (DOOSAN S220-5 swing motor)", all designed to restore or enhance your machine's operational efficiency.
When you choose "Tonkee Machinery Co.,Ltd.", you're not just buying parts; you're investing in reliability, durability, and peace of mind. Our commitment to quality ensures that every component we offer meets stringent standards, helping you minimize downtime and maximize productivity. We understand the demanding nature of the construction industry, and our goal is to provide solutions that keep your operations moving forward, day after day.
Explore our extensive catalog today and discover how our premium swing and travel components can elevate your excavator's performance to new heights. For inquiries or to find the exact part you need, contact our expert team – we're here to assist you in finding the perfect fit for your heavy machinery.
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