FAQs

Q1. If your company a trader or manufacturer?
A : We are the manufacturer & trader .

Q2. Can you supply customize undercarriage?
A : Yes. We can customize the undercarriage according to your requirements.

Q3. How is your price?
A : We guarantee the quality while providing the right price for you.

Q4. How is your after – sale service?
A : We can give you one year after sales warranty, and any quality problem caused by manufacturing defects can be unconditionally maintained.

Q5. What is your MOQ?
A : 1 set.

Q6. How will you place your order?
A : In order to recommend a suitable drawing and quotation to you , we need to know:
a. Rubber track or steel track undercarriage, and need the middle frame.
b. Machine weight and undercarriage weight.
c. Loading capacity of the track undercarriage ( the weight of the whole machine excluding of track undercarriage.
d. Undercarriage’s length, width and height
e. Track’s Width.
f. Height
g. The max speed (KM/H).
h. Climbing slope angle.
i. The machine’s apply range , working environment.
j. Order quantity.
k. Port of destination.
l. Whether you require us to purchase or collocate relevant motor and gear box or not, or other special request.

A: ● 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: First, decide which kind of undercarriage best suits the requirements of the equipment.

Selecting the proper undercarriage size is the second step.

Thirdly, think about the chassis's construction and material quality.

Fourth, be mindful of the chassis's lubrication and upkeep.

Select suppliers who offer strong technical assistance and after-sale service.

A: For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. The lead times become effective when (1) we have received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all cases we will try to accommodate your needs. In most cases we are able to do so.

A: You can make the payment to our bank account, Western Union or PayPal:
30% deposit in advance, 70% balance against the copy of B/L.

A: We warranty our materials and workmanship. Our commitment is to your satisfaction with our products. In warranty or not, it is the culture of our company to address and resolve all customer issues to everyone’s satisfaction.

A: 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.

A: 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 seafreight 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: Our system is designed for harsh environments exceeding 50°C. We use high-quality high-temperature seals and lifetime-lubricated rollers to ensure continuous operation in the high temperatures of the Pilbara or Central Australia. However, in daily operation, we recommend that you pay attention to these two points: look for signs of oil leaks and listen for unusual noises.

A:  Absolutely. We specialize in custom tracked undercarriage for construction machinery. Our technical team can customize mounting interfaces, bolt hole patterns, and frame widths for seamless integration with your specific drilling rig model. We will provide 3D CAD drawings for your engineering department's approval before production.

 A: To ensure ease of maintenance in remote areas, many of our wear parts (such as track bolts, nuts, and rollers) are designed to be interchangeable with global standards (such as ITM). This allows your field team to procure emergency spare parts locally when needed.

A: Each component undergoes 100% load and travel testing before leaving the factory. We provide a comprehensive Factory Acceptance Test (FAT) report with each shipment. For standard custom orders, delivery time to Australian ports (Perth/Brisbane) is typically 4-6 weeks, depending on the configuration.

 A: Yes. Since we are in a similar time zone to Perth, Western Australia, and only 2 hours different from Brisbane, Queensland, our engineers will provide real-time technical advice and troubleshooting during your business hours.

 A: Yes. We have extensive experience in international trade with South America. We can provide certificates of origin (e.g., China-Chile or China-Peru FTA formats). This allows you to take full advantage of free trade agreements, significantly reducing or even eliminating import tariffs.

A: YIJIANG'S steel tracks feature a robust three-tooth track design for maximum soil penetration and traction. For swampy or soft-soil rainforest areas, we offer widened track plates for ultra-low ground pressure to prevent equipment from sinking, while maintaining climbing ability up to 30° (60%).

A: We use heavy-duty forged steel for all critical load-bearing components. Our track chains and rollers undergo a special induction hardening process, achieving a surface hardness of HB450+. This ensures a longer service life and lower “cost per hour” in highly abrasive rock environments.

We have established partnerships with logistics providers serving major ports such as Valparaiso/San Antonio (Chile), Callao (Peru), and Santos (Brazil). All equipment undergoes anti-corrosion marine coating treatment and is packaged in reinforced steel frames to ensure that the equipment arrives intact despite the long transit times.

A: Mobile crushers are "heavy-duty, slow-speed" equipment. We come standard with a high-torque dual-speed travel reducer.

• Low speed: Provides excellent traction, meeting the climbing requirements of 25°~30° slopes.

• High speed: Facilitates rapid relocation on flat terrain.

We can precisely match the motor displacement according to your hydraulic system pressure (e.g., 280 bar or 350 bar).

A: Yes. We use a jointless steel wire winding process.

Compared to traditional jointed tracks, this structure provides a more even distribution of tensile force, significantly reducing the risk of track breakage during high-load climbing.

A: We use high-strength manganese steel (such as 25MnB) forged or rolled. For crusher operations, we have specially thickened the grouse ribs of the track shoes, giving them greater bending resistance. If your working conditions are extremely harsh, we also offer "triple-rib reinforced" steel tracks to ensure the undercarriage does not deform under rock impact.

A: Of course. We can customize the length, width, and mounting hole positions of the track frame according to your upper frame interface to achieve a "seamless connection".

A: Stability is key. We will calculate the ground pressure based on your machine's center of gravity height. Crushers typically use extended crawler tracked undercarriage to increase longitudinal stability. We can customize track widths from 500mm to 800mm to ensure the machine doesn't tip over or get stuck on gravel roads.

A: We primarily select the appropriate track undercarriage based on your crusher's overall working weight, dimensional constraints, and expected operating conditions. Typically, mobile crushers require a dynamic safety factor of 1.2 to 1.5 to handle impact loads during crushing.

A: In the specialized machinery industry, particularly for customized crawler undercarriages, the "built-to-order" model is the industry standard. Below are the primary reasons why these high-precision components are not kept in stock.
1. High Degree of Customization (Application-Specific Design)
Every crawler undercarriage is a "tailor-made" solution designed to match the specific requirements of the upper equipment.
• Dimensions: Different working environments (e.g., narrow construction sites vs. wide-open mining areas) require precise total lengths, widths, and track shoe widths.
• Load Capacity: A undercarriage for a 5-ton drilling rig requires a completely different structural strength and material thickness than one for a 10-ton mobile crusher. We engineer each unit to ensure maximum safety and durability.

2. Technical Compatibility of Core Components
The "heart" of the undercarriage—the hydraulic motors and planetary gearboxes—must be perfectly synchronized with your machine's hydraulic system.
• System Matching: We select motors based on your specific hydraulic pressure and flow rate to achieve the required torque and travel speed.
• Track Options: Depending on the terrain, customers may require steel tracks, rubber tracks, or steel tracks with rubber pads. These are assembled at the time of the order to meet specific site demands.

3. Precision Engineering for Seamless Integration
To ensure the undercarriage integrates perfectly with your equipment, we must verify the mounting interfaces, bolt hole patterns, and hydraulic piping layouts against your technical drawings. This level of precision is impossible to achieve with a generic, pre-manufactured stock item.

4. Quality Assurance and Component Longevity
• Freshness of Parts: Components like rubber tracks, oil seals, and certain hydraulic elements have a shelf life and can be sensitive to environmental conditions. By building to order, we guarantee that every part of your undercarriage is in "factory-fresh" condition.
• Cost-Efficiency: Producing specifically for your project allows us to optimize material procurement and pass those cost savings on to you, ensuring a more competitive price without compromising quality.

A: The production cycle generally ranges from 20 to 30 working days, depending on the complexity of the design. Standardized custom solutions may be completed faster, while highly complex hydraulic or structural projects may require additional time.

A: We recommend providing your technical specifications as early as possible. While the main structural frames are custom-made, we maintain a consistent inventory of standardized rollers, idlers, and drive motors, which can significantly shorten the final assembly and testing phase.

A: Rubber track is a synthetic material subject to natural aging. To ensure maximum service life and optimal traction, we follow a "build-to-order" policy to prevent performance degradation or hardening caused by prolonged storage.

A: There are thousands of combinations of pitch, width, and links. Each machine’s drive and tensioning system requires a precise match to prevent derailment or premature wear, making it impractical to stock every variation.

A: Different terrains (turf, mud, or gravel) require specific tread patterns. Built-to-order production allows us to provide the most suitable track design for your specific working conditions.

A: To guarantee material freshness (preventing rubber aging) and ensure a 100% precise fit for your machine’s specific technical parameters.

A: Provide your machine model, track specifications (Width x Pitch x Links), and working environment as accurately as possible. Prompt technical confirmation is the most effective way to shorten the overall cycle.

A: 1, Typically, the production lead time for rubber tracks is 15 to 30 working days. For standard specifications with semi-finished components in stock, we can expedite shipment within 7 working days.

    2, Customized requirements, such as unique pitches, widths, or specific steel cord structures, may require mold adjustments or line re-configuration, adding 5–10 days to the process.

    3,  Bulk orders require more time for production scheduling and rigorous quality control. We can provide partial shipments or a detailed production schedule based on the order size.

    4, During peak industry seasons or around public holidays, production schedules may be tighter. We recommend planning 4–6 weeks in advance to avoid potential logistics delays.

A: Our products are widely utilized in diverse sectors globally:

• Construction: Drilling rigs, loaders, and exploratory machinery.

• Specialty Robotics: Fire-fighting robots and underwater dredging equipment.

• Infrastructure: Aerial working platforms and transport lifting equipment.

• Agriculture: Garden and field construction machinery.

A: Yes. We can process and deliver the complete undercarriage platform, including the track system, tensioning devices, and drive motors. This turnkey solution allows our customers to directly mount their equipment, significantly reducing assembly time and costs.

A: Lead times vary depending on the complexity of the design:
• Standard Models: Approximately 15-25 days.
• Custom Engineering Projects: Typically 30-45 days, including design confirmation and technical drawing approval.
• We provide regular production updates and shipping coordination to ensure on-time delivery to Europe, North America, and beyond.

A: With over 20 years of export experience, we offer comprehensive logistics support:
• Packaging: Professional export-standard steel or wooden crates.
• Shipping: Experience in shipping to the USA, Canada, Russia, and Southeast Asia.
• Documentation: We provide all necessary technical manuals, specification sheets, and customs documentation to ensure a smooth import process.

A: We prioritize structural integrity through:
• High-Quality Manual Welding: Our skilled technicians perform manual welding to ensure deeper penetration and superior strength compared to basic automated processes.
• Material Selection: We use high-strength steel and wear-resistant components.
• Strict Verification: Every undercarriage undergoes rigorous inspection before shipment to ensure reliable performance in harsh working environments.

A: We offer a wide range of load-bearing solutions:
• Steel Track Undercarriage: Load capacity ranges from 1 ton to 150 tons, ideal for mining, drilling, and heavy construction.
• Rubber Track Undercarriage: Load capacity ranges from 0.2 tons to 30 tons, perfect for robots, agriculture, and sensitive ground surfaces.

A: Yes. We specialize in OEM and ODM services. Our engineering team can provide custom designs based on your equipment's:
• Total Weight (Load Capacity): From 0.2 tons up to 150 tons.
• Dimensions: Tailored length, width, and height to fit your machine's chassis.
• Working Environment: Specific configurations for underwater, high-temperature, or rough terrain.
• Motor Integration: We recommend and assemble suitable motors and drive equipment based on your torque requirements.