Phone:
+86-13862448768
E-mail:
manager@underpan.com
WhatsApp:
8613862448768
As a leading manufacturer, YIJIANG provides bespoke crawler solutions for loads from 0.5 to 120 tons. Our systems ensure stability in any environment through three core categories:
Rubber Track Undercarriage: Ideal for robots, agricultural machinery, and light equipment requiring ground protection.
Steel Track Undercarriage: Engineered for heavy-duty drilling rigs, mining crushers, and construction machinery.
Extendable Track Undercarriage: Featuring hydraulic width adjustment for superior transportability and working stability.
Key Advantage: 100% custom engineering and high-quality manual welding for maximum durability.

The rubber track undercarriage is stable on all roads. Rubber tracks are highly mobile and stable, ensuring effective and safe work. Rubber track undercarriage's carrying capacity is 0.8 ton-30 ton.
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Yijiang company can design, customize and manufacturing various steel track undercarriage with a load capacity ranging from 0.5 ton to 120 ton. These steel track undercarriages are suitable for roads with muddy conditions, sandy soil, stones, rocks and boulders, and the steel tracks remain stable on any road.
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The extendable track system provides better stability and occupies less space.The extendable track undercarriage can smoothly pass through narrow passages,limited transportation space, and additional stability of extended positions by adjusting the width of the undercarriage.
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Initial communication regarding your undercarriage requirements.
Analysis of your data and presentation of our proposal.
Design of the undercarriage and motor drawings, followed by detail confirmation with you.
After you pay the deposit, we provide more precise 3D drawings.
Real-time production updates throughout the manufacturing process to keep you informed.
After the undercarriage passes quality testing, we immediately arrange sea shipping for delivery.
Yijiang Machinery is a specialized ISO9001-certified manufacturer of custom crawler tracked undercarriages in China. Since 2005, we have focused on providing high-performance, cost-optimized mobility solutions for heavy and light machinery.
Core Expertise: Custom design and manufacturing of Steel Track Undercarriages and Rubber Track Systems.
Load Capacity: Precision-engineered for equipment ranging from 0.5 to 120 tons.
Manufacturing USP: We prioritize high-quality manual welding and meticulous verification over automated robot welding to ensure superior structural integrity for complex, non-standard components.
Industries Served: Construction (excavators/cranes), Mining (crushers/drilling rigs), Agriculture, and specialized Robotics.


With load capacities ranging from 0.5 to 120 tons and applications spanning from mining to firefighting, we spare no effort to meet our customers’ diverse customization needs.
A: We follow a rigorous 6-step workflow to turn your ideas into reality:
1.Requirements & Communication: Initial discussion of your machine’s parameters and application.
2.Proposal Presentation: We analyze your data and present an engineered proposal.
3.Detail Confirmation: Technical design of the undercarriage frame and motor interface, followed by confirmation with you.
4.3D Drawings: Precise 3D drawings provided after deposit for your final engineering approval.
5.Manufacturing: Real-time production and welding updates provided throughout the process.
6.Testing & Shipping: Passing strict quality testing before arranging ocean freight.
7. Lead Time: Typically 20 to 35 days for customized orders, ensuring meticulous validation of non-standard designs.
● The working environment and intensity of the equipment.
●The load capacity and working conditions of the equipment.
●The size and weight of the equipment.
●Maintenance and upkeep costs of tracked undercarriage.
●A steel track undercarriage supplier with reliable brands and good reputation.
A: We fully support MOQ = 1 unit for customized projects. We understand that many engineering machinery projects, prototyping phases, or specialized drilling rigs require only a single, highly tailored undercarriage. We treat every single-unit custom project with the same rigorous engineering and quality control as an order for a hundred units.
A: For customized engineering projects, our standard payment term is 30% T/T deposit to initiate engineering and production, and 70% T/T balance before shipment (after you approve photos, video testing, or third-party inspections). For larger fleet orders or continuous project contracts, we also accept 100% Irrevocable Letter of Credit (L/C) at sight from prime international banks.
A: We provide a 12-month or 1000-working-hour warranty (whichever comes first) covering structural parts and major components against manufacturing defects. In case of any technical issues, our engineering team offers rapid response within 24 hours via video calls, email, and detailed CAD diagrams to diagnose and provide solutions, ensuring your equipment minimized downtime.
Yes, we always use high quality export packaging. We also use specialized hazard packing for dangerous goods and validated cold storage shippers for temperature sensitive items. Specialist packaging and non-standard packing requirements may incur an additional charge.
The shipping cost depends on the way you choose to get the goods. Express is normally the most quickest but also most expensive way. By sea freight is the best solution for big amounts. Exactly freight rates we can only give you if we know the details of amount, weight and way. Please contact us for further information.
A: To recommend the most suitable design and provide an accurate quotation, we need to know:
1.Track Type: Rubber track or steel track undercarriage (and whether a middle frame is required).
2.Weight Parameters: Total machine weight (excluding undercarriage) and the target payload capacity (0.5 to 120 tons).
3.Dimensions: Desired length, width, height, and track shoe width.
4.Performance Requirements: Maximum travel speed (KM/H) and maximum climbing slope angle.
5.Application & Terrain: The machine’s working environment and industry (e.g., drilling, crushing, solar cleaning, farming).
6.Drive System: Whether you need us to integrate matching hydraulic motors/gearboxes or have specific brand requirements.
A: To give you the final engineering drawing, please provide the following “Golden Six” parameters:
1.Total payload required (Weight of your upper machine + work attachments).
2.Preferred track type (Steel track or Rubber track).
3.Available hydraulic system parameters (Max flow rate L/min and Max pressure MPa).
4.Dimension limits (Max allowable total width and length for transport limits).
5.Working speed requirement (Low speed/High speed).
6.Detailed terrain description (e.g., hard rock, mud, sand, slope angles).
● Warranty: One-year warranty, lifetime maintenance.
● We provide remote online guidance and software support for convenient remote operation. We offer spare parts for vulnerable components and will replace core components when damaged, providing video or text instructions.
● We provide after-sales videos and user manuals. In addition, we have a professional after-sales support team. Engineers provide one-on-one service via video, conference, text, and voice, and offer 24-hour support.
● The lifespan of core components under normal use (excluding human-caused damage) is typically 5-7 years. 90% of problems can be resolved remotely.
Start your project today, you will:
Receive a free application analysis report with practical recommendations and photos.
Get professional advice from our engineers within 24 hours.
Learn the most suitable configuration and model for your track undercarriage.
manager@underpan.commanager@crawlerundercarriage.com