Murphy Construction Machinery (Shandong) Co., Ltd. is one of the leading manufacturers and suppliers of x-form beam whole undercarriage in China. If you're going to buy the newest x-form beam whole undercarriage, welcome to get pricelist from our factory. All customized products are with high quality and low price.

Product Details
The undercarriage uses an X-shaped load-bearing beam. This design improves rigidity and distributes stress more evenly. Key parameters-including track length, ground contact width, shoe thickness, gauge, and drive-can be adjusted to suit different needs. The system can be fitted with hydraulic, electronic, or remote-control interfaces, making it easy to upgrade for smart equipment retrofits. Its modular, integrated construction allows quick installation and connection to the host machine without any structural modification, so it works with a wide range of equipment and simplifies assembly. In challenging conditions like muddy sites, tunnels, soft sand, or uneven farmland, it offers steady traction, strong load capacity, and good off-road performance. This makes it a good fit for construction machinery manufacturers, equipment integrators, and engineering trading companies.
Our Core Strengths
We have established a specialized undercarriage R&D team focusing on customized, reinforced X-beam undercarriages. We tailor load-bearing specifications and hydraulic drive systems to the actual operating conditions of equipment used for tunneling, drilling, crushing, and more; our designs offer superior structural stability and operational adaptability compared to traditional straight-beam undercarriages. With years of experience in the heavy industry supply chain, we provide mature, integrated solutions for engineering machinery, drilling equipment, and specialized tracked vehicles. Our entire production line utilizes precision CNC machining and a fully traceable quality control system, ensuring consistent precision and stable performance across batch production-enabling us to efficiently handle large-volume domestic and international orders.

Customized Design Solutions
We provide bespoke, X-form beam whole undercarriage solutions tailored to specific client requirements, including equipment dimensions, operating environments, load capacity, track width, and drive configuration. We offer OEM and ODM services, helping partners shorten equipment R&D cycles while enhancing operational stability and market competitiveness.

Durable Steel Structure
This undercarriage is built from thick, high-strength alloy steel plates, formed through integrated forging and pressing, and reinforced with a proprietary X-shaped beam. The result is better resistance to wear, impact, and deformation. It's designed for continuous, heavy-duty work-running at full load and high frequency over long periods. The structure also takes into account the off‑center and shock loads that are common in construction equipment, so vibration stays low even under full load, and the machine runs more smoothly overall. The robust, one‑piece construction reduces component wear, which means fewer breakdowns and less downtime for repairs. Over time, this translates into lower operating and maintenance costs, and a longer service life for the equipment.

Technical Specifications (X-form Beam Whole Undercarriage Assembly Solution)
X-shaped crossbeam overall chassis




| CODE NAME | A | B | C | D | E | F | G | H | I | J | K | APPLICATION |
| *MEFW25 | 1540 | 2030 | 250 | 520 | 535 | 578 | 230 | 300 | 1165 | 1250 | 1550 | 2.5Ton excavator |
| *MEFW35 | 1635 | 2110 | 260 | 525 | 540 | 585 | 245 | 300 | 1340 | 1440 | 1740 | 3.5Ton excavator |
| *MEFW60 | 2060 | 2575 | 275 | 595 | 635 | 705 | 370 | 400 | 1560 | 1600 | 2000 | 6Ton excavator |
| *MEFW70 | 2197 | 2823 | 327 | 694 | 723 | 776 | 390 | 450 | 1318 | 1800 | 2250 | 7Ton excavator |
| MEFW100 | 2414 | 3065 | 340 | 690 | 754 | 804 | 440 | 450 | 1404 | 1450 | 2350 | 10Ton excavator |
| MEFW120 | 2743 | 3475 | 380 | 766 | 817.5 | 870.5 | 443.5 | 500 | 1273 | 1900 | 2400 | 12Ton excavator |
| MEFW200 | 3360 | 4160 | 410 | 940 | 993 | 1075 | 475 | 600 | 2180 | 2200 | 2800 | 20Ton excavator |
| MEFW300 | 4030 | 4940 | 464 | 1068 | 1090 | 1230 | 525 | 600 | 2560 | 2600 | 3200 | 30Ton excavator |
| MEFW360 | 4080 | 5045 | 475 | 1173 | 1205 | 1352 | 562 | 600 | 2480 | 2600 | 3200 | 36Ton excavator |
| MEFW500 | 4410 | 5460 | 540 | 1195 | 1215 | 1385 | 585 | 600 | 2520 | 2760 | 3360 | 50Ton excavator |
| MEFD150 | 2565 | 3208 | 341.5 | 714.5 | 855.5 | 855.5 | 355.5 | 450 | 1250 | 1810 | 2260 | 15Ton Vertical Pole Machine |
| MEFD150A | 2333 | 3062 | 364.5 | 793 | 858 | 838 | 358 | 400 | 975 | 1435 | 1835 | 15Ton Pillow Changing Machine |
| MEFF220 | 3640 | 4480 | 448 | 1036 | 1133 | 1222 | 660 | 700 | 2055 | 2795 | 3495 | 22Ton Wood Grabbing Machine |
| MEFD500 | 4470 | 5479 | 521.5 | 1181 | 1194 | 1324 | 574 | 800 | 1780 | 2740 | 3540 | 60Ton Pile Driver |
| MEFZ500 | 4871 | 5801 | 472 | 1136 | 1302 | 1287 | 534 | 600 | 2990 | 4000 | 4642 | 50Ton Material Loading And Unloading Machine |
| MEFD1000A | 4010 | 5150 | 552 | 1264 | 1213 | 1358 | 588 | 900 | 2760 | 3660 | 4614 | 100Ton Fabric Machine |
| Note:1. The above are standard products that can be customized for design and manufacturing according to user needs; 2. "*" represents the overall chassis of rubber tracks; 3. Some products can be optionally equipped with rubber blocks. |
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View More Technical Parameters
Chassis Components
A general-purpose track style focused on long service life and dependable use. It is designed for rotary drilling rigs working in various environments.

Factory Production Line
All components are cut with laser precision and bent on CNC machines, so dimensional tolerances stay tight and the structure stays consistent across the board. Robotic welding is used for the joints-giving us even, dense, and strong welds while keeping heat distortion to a minimum, which helps maintain the integrity of the X‑beam design. Key mounting surfaces and locating holes are then finished on gantry machining centers to make sure everything lines up properly during assembly. After that, parts go through shot blasting to remove rust, followed by automated painting and high‑temperature curing, so the finished undercarriage holds up well against corrosion and rust. On the assembly line, we follow standardized procedures-applying thread‑locking compound and torquing bolts to specified values-so nothing works loose over time, even under continuous use. The result is reliable, long‑lasting performance.

Factory Scene



Established in 2022, Moerfei Engineering Machinery (Shandong) Co., Ltd. is a leading construction machinery manufacturer in China, integrating research and development, production, sales, and service. With 10 years of experience, it is renowned for its technical strength, quality system, and global service. Its headquarters is located in Jining City, Shandong Province, China.
X-form Beam Whole Undercarriage Loading & Shipment
Our heavy-duty tracked chassis are fully manufactured and carefully loaded for delivery.
All products undergo strict quality inspection before shipment, securely wrapped to avoid damage during transit.
Custom steel tracked undercarriages are widely applied to drilling rigs, engineering machinery and special off-road equipment.
We support customized dimensions, load capacity and drive solutions, arranging timely delivery for global clients.

The Customer's Evaluation Of Us
We keep updating manufacturing technology and provide free product performance upgrade and process optimization suggestions for old customers, helping products adapt to upgraded industrial production standards.

Exhibition


FAQ
Q: What is the minimum order quantity (MOQ)? Is there stock available? What is the lead time?
A: Minimum Order Quantity (MOQ) is 1 unit, with support for single-unit customization. Standard in-stock items ship within 7–10 days, while non-standard custom orders take 15–25 days; delivery times for large-volume orders can be negotiated.
Q: Can the chassis width and total length be modified to meet specific requirements?
A: Equipment dimensions (length/width), track gauge, ground clearance, and mounting flanges can all be customized. Upon contract signing, we provide free 2D, 3D, and assembly drawings to facilitate quick installation and integration for the customer.
Q: Do you support the customization of steel chassis across different tonnage capacities?
A: We support OEM/ODM customization across the full 3–200 ton range, suitable for heavy machinery such as exploration drill rigs, muck loaders, rotary drilling rigs, and compact excavators.
Q: What is the warranty period for the complete unit?
A: The entire unit comes with a standard one-year warranty. We maintain steady stock of wear parts-such as track chains, drive sprockets, idlers, and track rollers-to ensure reliable supply.
Q: What packaging is used for shipping? How are sea or land freight costs calculated?
A: Units are finished with anti-rust paint and secured with steel or wooden framing to prevent damage during transit. We offer trade terms such as FOB, CIF, and DDP, and can accurately calculate sea or land freight costs based on the shipping origin and transport method.
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