Retractable Tracked Undercarriage Assembly

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

A steel undercarriage is only as good as the joint between it and your machine.
You can buy the heaviest track frame on the market, but if the bolt pattern doesn't line up, it's scrap. We fabricate the complete crawler undercarriage assembly-track frame, lower frame, travel base-around your mounting drawing. Q345B beam, sealed rollers, hardened sprockets. It arrives as one unit, not a puzzle.

Drill rigs, exploration units, tracked carriers. The ground doesn't get easier.

Mud, rock, mountain grade. A steel track undercarriage does its job when the site stops being polite. Built for real site conditions - not spec sheets. Custom tonnage from 3 to 200, matched to your hydraulic flow and travel speed. No adapter plates. No re-drilling.

 

Send the drawing. Get a quote. Decide after.
Steel systems in the 20 to 80 ton band often reuse existing frame dimensions. Larger goes through dedicated engineering. Replacement rollers and idlers stay available after the sale. The proposal costs nothing, and the first conversation costs nothing.

ISO 9001, CE, RoHS certified. Third-party tested Track Carrier Assembly. Certificates & test reports available on request.

Every host machine has its own mounting logic, and a crawler undercarriage assembly should respect that rather than fight it. We build complete track frames-track groups, rollers, idlers, sprockets, and final drives-for drilling rigs, exploration equipment, tracked carriers, compact drills, solar piling machines, and geological survey rigs, across a wide spread of operating weights. The running gear is matched to the load the machine actually carries.

No cutting or welding required on your existing host machine for chassis fitment. Send your frame dimensions, bolt pattern, and hydraulic routing, and we will configure the Track Carrier Assembly mounting interface to your design. New machine programs and retrofit projects follow the same path.

Solid engineering first. We review your drawings & load cases, deliver reviewable CAD layouts for frame, rollers, ground pressure and mounting interface before production. Full new chassis concept development available, not just tweaks to existing designs.

Capacity follows your project timeline, not the other way around. Prototype batches and ongoing OEM Steel Track Crawler Track Frame Assembly supply both run through our own machining, assembly, and inspection lines, so the delivery date we quote is one we can stand behind. Equipment brands stay with suppliers who hold that line.

A fixed spec sheet rarely fits the ground your machine actually works on. Tell us terrain and total weight. We size track width, ground pressure, clearance, gauge and travel speed for soft ground and heavy loads.

Measured, not estimated data, backed by documentation. Datasheets & drawings supplied with every order for your team and downstream customers.

 

More product specifications

This crawler undercarriage assembly features a box‑section track frame. Its mounting faces are machined after welding and stress relief, ensuring the bolt pattern holds true for your host machine. A well‑fitted undercarriage eliminates installation trouble and maintains frame alignment under load.

Within the travel assembly, the drivetrain transfers loads through the main structure instead of forcing stress onto seals and bearings. Sealed lubrication safeguards wear points on rollers, idlers and sprockets in dusty and wet conditions - the environments where crawler undercarriages most commonly fail.

What buyers notice first is that nothing sits in a warehouse waiting for a third party. Steel plate gets cut, formed, welded, and machined in sequence, then moves straight into undercarriage assembly - the same site, the same crew. That's how a crawler undercarriage assembly keeps its geometry from the first weld to the final bolt torque check.

It also changes how custom work feels. A drilling rig chassis or a piling rig base with an unusual track gauge doesn't get stuck in someone else's queue; our engineers adjust the design, the shop floor picks it up, and the unit moves forward without handoffs. If you're comparing suppliers for a steel track undercarriage, ask them who actually welds the frame - then ask us the same question.

Mud, sand or loose fill - the track maintains reliable traction. Where site conditions require it, ground pressure is distributed over a wider contact area, keeping the machine stable instead of sinking. This advantage is critical on sites where ground conditions shift between work shifts.

A dimensionally stable frame under load. The structural steel is selected and fabricated to resist deflection during pushing, drilling or operation at rated capacity. A frame that retains its geometry keeps rollers and idlers aligned; this alignment is the key factor determining overall component service life.

Full disassembly is not required for servicing. Wear parts are independently accessible and replaceable. No full assembly teardown for worn rollers or failed seals. Scheduled maintenance, no unexpected downtime.

A mineral exploration contractor working laterite ground in Indonesia kept burning through idlers on a standard track frame - we replaced it with a sealed steel track undercarriage assembly and the downtime stopped eating their schedule. That account has since moved to annual undercarriage supply as their rig count grows.

In northern Europe, a drilling rig OEM handed us a prototype brief for a compact crawler chassis; after field trials on frozen forest tracks, the design went into regular OEM production. They now reorder the same crawler undercarriage system with unchanged mounting points, which keeps their assembly line predictable. If you're sourcing a track undercarriage assembly for similar ground or a similar rig, send your machine model and working weight and we'll come back with a matched proposal.

Container space is money, so we plan the loading of every crawler undercarriage assembly before the first strap goes on. Frames are nested and braced against the walls, track assemblies and final drive units get their own blocked zones, and nothing rides loose across the ocean. The goal is simple: you open the doors and the undercarriage is where we put it, undamaged.

We also handle the paperwork side so your freight forwarder isn't chasing us for documents. Packing list, shipping marks, and product details for the crawler chassis go out with the shipment, and we work under FOB or CIF as you prefer. A clean handover at the port saves your team days.

How To Cooperate With Us?

 

Murphy Company set up shop in 2022, though the people running it had already put in well over a decade in construction machinery.

 

Every tracked chassis assembly we design starts the same way-by asking how this host machine will actually behave on site. From that answer, track shoe width, chassis size, load capacity, travel speed, and supporting parts are all customized to your requirements. What you get in the end is a tailor-made crawler solution ready for engineering, construction, and mining work of all kinds.

• Phone Number

  + 86 175 6277 7823

• Phone Number
  mefgcjx@126.com

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