Tracked Undercarriage System

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

Steel crawler undercarriage. 3 to 200 tons. The foundation your machine sits on, not an afterthought.

For drill rigs, explorers, crushers, roadheaders. Q345B main beam, sealed rollers, hardened sprockets. Built for daily mud, rock dust and slope conditions.

 

A mounting sketch tells us more than a hundred emails.

Send the bolt pattern and the tonnage. We fabricate the Crawler Carrier Assembly, lower frame, and travel base as one matched assembly. No adapter plates, no on-site re-drilling. Proven core structure across tonnages, custom interface only. Custom build without extended lead times.

 

Quote first. Commitment after. Spares when you need them.
20–80 ton steel undercarriages: reuse of validated frame dimensions. Larger capacities go through dedicated engineering. After-sales rollers & idlers in stock. Free quotation, free pre-sale consultation.

A track system that fights the ground will always cost you somewhere. Maybe it's the links stretching early, maybe it's the rollers packing with mud that shouldn't be there. The machine still works, but everything feels like it's working against you.

The same thing happens at the mounting end. Your machine was built around a certain frame width, a certain bolt layout, a certain clearance underneath. A stock undercarriage ignores all of that and expects you to make it fit. That's where the extra labor and the slow first week come from.

Getting both right isn't complicated - it just has to be deliberate. Match the Track Carrier Assembly to the terrain, match the frame to your machine, and the undercarriage stops being the part of the project that causes trouble.

The Steel Crawler Undercarriage Assembly should outlast the wear it meets. Crushed rock, wet clay, abrasive slurry - each one wears a chassis down differently. Roller spacing, track plate grade, and frame thickness are chosen with that in mind, so the parts that take the beating are the parts built for it.

Stability depends on ground contact. Optimized bearing area for even load distribution, steady performance on slopes. Uneven settling shows up in poor hole accuracy and extra strain on the host equipment.

Fewer surprises once it is on site. Everything that can be checked in the workshop is checked there - fit-up, alignment, travel function - so the first week of operation is about production, not troubleshooting.

Certified to ISO 9001, CE, and RoHS standards for reliable steel track undercarriage performance.

Our steel crawler chassis undergoes rigorous third-party testing and complies with international quality and safety certifications.

Full qualification certificates and test reports are available upon request to ensure complete customer confidence.

Every machine sits on different ground, so we don't hand you a one-size spec sheet. Ground pressure, track width, load capacity, clearance, gauge, and travel speed are worked out for your site and your machine weight-by engineers, not by a default template.

The numbers we quote come from real measurement, and you can check them. Once the order is confirmed, the technical datasheet and drawings go out with the goods-useful when you design, file, or inspect the finished machine.

More model specifications

 The machine on top changes, the crawler platform underneath does not have to be reinvented each time. We supply undercarriages for drilling rigs, exploration units, tracked haulers, compact drills, solar piling rigs, and geological survey equipment, sized to a wide band of machine weights. If it needs to move on tracks and carry a working load, we can build the base for it.

Your host machine stays exactly as designed. Provide mounting points, frame sizes & hydraulic layouts. Custom interface for hydraulic crawler chassis, for new builds and retrofits.

A custom Track System Undercarriage isn't a standard frame with a few measurements changed. Our engineers read your host machine drawing and working load, then check the frame structure, track layout, roller placement, and mounting interface before a CAD set ever reaches the shop floor. New chassis concepts get the same treatment as adjustments.

Your order rhythm sets the pace. One-off prototypes and repeat OEM programs are both welcome, and because machining, assembly, and inspection happen in-house, we can give you a delivery schedule that holds. That's what makes a long-term supply relationship work.

In-house full production for Track Running Gear Assembly: plasma cutting, full-penetration welding, CNC machining, induction hardening and final inspection. No outsourced semi-finished parts.

That layout matters when you're sourcing a heavy duty steel track chassis for a drilling rig or a custom OEM program. Engineers on-site with production teams. Same-day design feedback. Share your drawings for feasibility, price & lead time. No middlemen, no delayed feedback - we own every step from design review to final load-out.

A peat-bog exploration crew in Borneo kept pulling its rig out of the mud with a winch every morning - we supplied a wide-track undercarriage with low-ground-pressure shoes, and now the rig reaches its bore points on its own power. The same customer has since added more crawler chassis units to their fleet as new survey contracts came in.

For a North American OEM building compact drill rigs, we started with a prototype steel track undercarriage, then moved into regular production supply once the design was validated in the field. Their engineers now order the same crawler undercarriage assembly on a rolling schedule. If your rig or carrier needs a track system that's already proven in similar ground and backed by repeat orders, send over your machine specs and working weight for a matched recommendation.

Pre-shipment corrosion protection before packing. Coated welds & machined surfaces, wrapped moving parts, supportive transport cradle. Built to withstand salt air on ocean shipments.

We treat container loading as part of the job, not an afterthought-layout drawn around your box, bracing checked before the doors shut, shipping marks and documents ready for your broker. Whether you buy on FOB or CIF terms, the handover is clean and your customs side has what it needs.

How To Cooperate With Us?

Murphy Company got its start in 2022, but the people running it had already spent well over ten years in the construction machinery field.

 

Each tracked chassis assembly we design opens with a simple question: how will this host machine actually behave on site? From there, track shoe width, chassis size, load capacity, travel speed, and supporting parts are all customized to your requirements. The end product is a tailor-made crawler solution ready for engineering, construction, and mining work of all kinds.

 

Phone Number

+ 86 175 6277 7823

E-mail

mefgcjx@126.com

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