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Professional Excavator Parts Supplier

Leading manufacturer of travel gearboxes, swing gearboxes, final drives, and precision gearbox components for heavy-duty earth-moving machinery.

Our Products

High-performance, cost-effective gearbox and drive components engineered for durability and seamless compatibility across major excavator brands.

Final Drive

Robust final drive units designed for maximum torque transmission and long service life in excavators and heavy machinery.

  • • High torque capacity
  • • Precision planetary gears
  • • Sealed for dust & moisture
  • • Compatible with 20+ brands

Swing Gearbox

Precision-engineered swing reducers for smooth 360° rotation in excavators and drilling equipment.

  • • Low backlash design
  • • High efficiency transmission
  • • Durable housing
  • • OEM replacement standard

Travel Gearbox

Heavy-duty travel reducers built to withstand harsh conditions and deliver reliable mobility performance.

  • • High load capacity
  • • Optimized gear ratios
  • • Heat-treated gears
  • • Drop-in replacement

Swing Motor

High-efficiency hydraulic swing motors for precise control and smooth operation in rotating machinery.

  • • Variable displacement
  • • Low noise operation
  • • Integrated brake system
  • • Corrosion-resistant

Gearbox Parts

Individual components including gears, shafts, carriers, hubs, and pinions for repair and maintenance.

  • • Precision-machined
  • • Heat-treated steel
  • • Exact OEM specs
  • • Fast availability

Travel Reducer

High-torque travel reducers for continuous operation in mining, construction, and quarrying applications.

  • • Multi-stage reduction
  • • Heavy-duty bearings
  • • Sealed lubrication
  • • Extended lifespan

Swing Reducer

Compact and powerful swing reducers for excavators, cranes, and rotating platforms.

  • • High reduction ratio
  • • Low maintenance
  • • Shock load resistant
  • • Direct fit replacement

Custom Gear Solutions

Tailored gearbox and drive systems for specialized machinery and OEM integration.

  • • R&D support
  • • Prototyping
  • • Tooling development
  • • Mass production

About LB Machinery

LB is a leading manufacturer and supplier of earth-moving machinery components, specializing in travel reducers and swing reducers. Founded in 2008, we have established ourselves as a trusted partner for excavator parts worldwide.

With advanced production equipment, a dedicated R&D team, and a commitment to quality, we deliver cost-effective, high-performance solutions compatible with Caterpillar, Komatsu, Hitachi, Hyundai, Volvo, Doosan, Kobelco, Sany, JCB, Case, John Deere, XCMG, and other major brands.

2008
Founded
+
Floor Space
+
Staff
LB Machinery Factory

Our Capabilities

From design to mass production, we offer end-to-end engineering and manufacturing services for excavator transmission systems.

Diversity

We focus on the production of excavator gearboxes, reducers, final drives, and swing drive transmission components including gears, pinion shafts, ring gears, motor shafts, carriers, and hubs.

Cost-effective

Our products are engineered to be cost-effective, saving customers significant expenses while maintaining high quality and reliability across all applications.

Compatibility

Our components are compatible with Caterpillar, Komatsu, Hitachi, Hyundai, Volvo, Doosan, Kobelco, Sany, JCB, Case, John Deere, XCMG, and other leading brands.

Customized Service Process

1

Assess Demand

2

Quotation

3

Design & R&D

4

Prototype & Testing

5

Mass Production

Latest Insights

Stay updated with technical knowledge and industry trends in excavator transmission systems.

November 10, 2025

Why Do Travel Gearboxes Fail — And How Our Parts Prevent It?

Downtime and costly repairs can derail even the most tightly run operations, especially when a critical component malfunctions.

November 14, 2025

What Happens Inside A Travel Gearbox on An Excavator?

Excavators rely on a precise combination of mechanical and hydraulic components to operate efficiently.

November 17, 2025

Rebuild, Reman Or New Travel Gearbox — What’s The Smart Upgrade?

When a travel gearbox begins to show signs of wear, operators face a crucial decision.

November 21, 2025

Can The Right Travel Gearbox Improve Productivity on Tough Jobsites?

When it comes to heavy-duty machinery, few components are as crucial as the travel gearbox.

Get in Touch

Have questions about our products or need a custom solution? Contact us today.

Phone & WhatsApp

  • +86-13302589039
  • +86-750-6688281
  • +86 18127522581

Email

  • jenny@lb-machinery.com
  • BIN@lb-machinery.com

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