LIANYOUMACHINERYRequest a Quote ↗

UNDERCARRIAGE SOLUTIONS

Built to Keep
Heavy Work Moving

Engineered undercarriage parts for excavators and bulldozers—built for distributors, repair networks and equipment owners worldwide.

Explore Products →About Lianyou
20+Years of Manufacturing
1,200+Compatible Models
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PRODUCT CENTER

Engineered Components
Complete System Coverage

From single replacements to complete kits, we match components by machine brand, model, tonnage and real jobsite conditions.

01
TRACK ROLLER SERIES

Track Rollers

Deep-hardened running surfaces and heavy-duty shells for continuous high-load operation.

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FRONT IDLER SERIES

Front Idlers

Precision-machined alignment keeps the track properly tensioned and guided.

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CARRIER ROLLER SERIES

Carrier Rollers

Low-friction sealing systems help prevent dirt ingress and premature wear.

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SPROCKET SERIES

Sprockets

Optimized tooth profiles and heat treatment deliver longer engagement life.

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TRACK CHAIN SERIES

Track Chains

Wear-balanced pins and bushings withstand shock loads, dust and abrasion.

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SEGMENT SERIES

Segments

Heat-treated segments provide precise engagement and reliable power transfer.

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MANUFACTURING

More Than a Part.
A Complete Quality System.

From raw material to final validation, reliability is built into every stage of our manufacturing process.

01

Material Verification

Chemistry, metallography and dimensions are verified before production begins.

02

Precision Manufacturing

Forging, heat treatment, CNC machining and assembly follow a traceable process.

03

Performance Validation

Hardness, sealing, impact and fatigue performance are tested by production batch.

04

Global Delivery

Neutral packing, private labeling and mixed-model container loading are available.

35MnBKey Component Material
HRC 52–58Surface Hardness Range
100%Critical Dimension Inspection
SINCE1990

ABOUT LIANYOU

Built by People Who
Understand the Jobsite

Lianyou Machinery is an export-focused manufacturer of undercarriage components for tracked equipment. We continuously improve wear resistance, sealing, load capacity and fitment so our parts perform consistently across mining, construction and forestry applications.

01 Quality First02 Fast Response03 Long-Term Partnership
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OUR MISSION

Reliable undercarriage parts
that keep your equipment working.
RELIABLE MANUFACTURING · LONG-TERM VALUE

NEWS INFORMATION

Company News & Events

EXHIBITION NEWS

QLYGS Mining Undercarriage Parts Featured at Quanzhou International Engineering Expo

During the three-day exhibition, Lianyou presented new technologies, products and ideas while strengthening cooperation with customers and industry partners.

COMPANY EVENT

Lianyou at the 2019 Quanzhou International Construction Machinery Exhibition

The exhibition was held at the Fujian Chenggong International Convention and Exhibition Center, where visitors joined us at Hall 3, booth T41.

EXHIBITION NEWS

bauma CHINA 2018 Concludes Successfully

The busy and rewarding exhibition brought valuable meetings, technical discussions and new opportunities with customers from across the industry.

EVENT PREVIEW

Lianyou to Exhibit at bauma CHINA 2018 — Booth W4-691

Lianyou will present its latest undercarriage products at bauma CHINA and welcomes customers and partners to visit the booth.

START A PROJECT

Tell Us Your Machine.
We’ll Match the Right Parts.

Send us the machine model, required parts and estimated quantity. Your inquiry will be delivered to both of our sales email addresses, and our export team will respond within one business day.

EMAILlerl78403@gmail.comBACKUP EMAILlirunkai2003@outlook.comPHONE+86 135 5905 5115