CAT 320 vs. Hyundai HX220A L: Two Final Drives, Nearly the Same Number

Caterpillar and Hyundai build their final drives and travel systems on completely different engineering assumptions -- different pump sizing, different two-speed travel motor logic, different gear reduction staging inside the final drive housing. Yet when you line up the published numbers for the CAT 320 and Hyundai's HX220A L, two excavators engineered an ocean apart land within half a percent of each other on maximum drawbar pulling force, and within a tenth of a mile per hour on top travel speed. That's not a coincidence. It's what happens when two different design paths both have to satisfy the same physics for the same size of machine.

For a contractor shopping by spec sheet, that convergence is actually useful information -- it tells you the drawbar-pull number isn't where these two machines will differ in practice. The difference is in how each one gets there, and what that means for climbing a muddy ramp, crossing a culvert, or self-loading onto a trailer at the end of the day.

The Numbers That Nearly Match

Caterpillar's published spec for the 320 lists maximum drawbar pull at 46,086 lbf, with a high-gear travel speed of 3.5 mph. Hyundai's published spec for the HX220A L lists maximum drawbar pull at 45,860 lbf -- 226 lbf less, a gap of roughly half a percent -- with a two-speed travel system running 3.4 mph in high gear and 2.2 mph in low gear. Both machines land in the 49,000 to 55,000 lb operating weight range depending on configuration. If you only looked at these two numbers, you'd conclude the machines are functionally identical in traction and travel. You'd be missing the more interesting part of the story.

Same Destination, Different Roads

Drawbar pull is the end result of a chain: engine torque, hydraulic pump displacement and pressure, travel motor sizing, and the final drive's gear reduction ratio all stack together before that force ever reaches the sprocket. CAT and Hyundai size each link in that chain differently -- different displacement travel motors, different final drive reduction staging -- and still arrive at almost the same output number. That's a meaningful data point about how mature this size class of excavator has become: there's a physical ceiling on how much drawbar force you can reasonably put through an undercarriage this size before you start breaking track components or outrunning the hydraulics' ability to feed the motors, and both manufacturers have independently converged on roughly where that ceiling sits.

Where the two machines genuinely diverge is in Hyundai's explicit two-speed travel system -- a true low range at 2.2 mph that trades top speed for additional usable torque when climbing, versus CAT's single published high-gear figure. A two-speed travel system matters most when a machine has to climb a loaded ramp onto a lowboy trailer, work up a muddy embankment, or travel across soft ground where a high-speed-only travel motor would simply spin the tracks instead of pulling through.

Where This Actually Shows Up on a Jobsite

A pipeline contractor crossing soft, saturated right-of-way ground benefits from a low-range travel setting that trades speed for extra pulling torque rather than fighting wheel-spin in high gear. A general contractor self-loading a machine onto a trailer at a sloped yard ramp cares about the same thing: low-end torque, not top speed. A site-development contractor moving a machine repeatedly between cuts on a large pad, on the other hand, cares more about raw travel speed between moves, since that's dead time that doesn't move dirt.

Both machines serve all three contractors reasonably well -- the drawbar numbers prove that -- but the two-speed Hyundai system gives an operator one more lever to pull when conditions get difficult, while CAT's architecture trades that explicit low-range flexibility for a simpler travel control scheme.

The Side-by-Side

• CAT 320: 46,086 lbf max drawbar pull; 3.5 mph high-gear travel speed; ~49,200-54,450 lb operating weight depending on configuration

• Hyundai HX220A L: 45,860 lbf max drawbar pull; two-speed travel at 3.4 mph high / 2.2 mph low; ~50,000-54,500 lb operating weight depending on configuration

• The gap between the two drawbar figures is about 226 lbf -- roughly half of one percent, essentially a wash

• The real difference is Hyundai's published low-range travel speed versus CAT's single high-gear figure

Why Final Drive Specs Rarely Decide a Purchase -- and When They Should

For most contractors, final drive and travel specs are the last thing they check, after bucket capacity, dig depth, and dealer support. That's usually the right call -- these two machines prove that drawbar pull has largely plateaued at this size class, so you're not sacrificing much either direction. The exception is a contractor whose jobsite genuinely demands repeated steep climbs: logging-adjacent land-clearing work, pipeline right-of-way across hilly terrain, or any site with a long, loaded haul-road grade. For that specific use case, a documented low-range travel speed is worth asking a Hyundai dealer to confirm in writing before you commit, rather than assuming CAT's single published figure covers the same ground.

Travel Alarms, Auto-Shift, and the Parts You Don't See

Both brands now build automatic travel-speed shifting into their control systems rather than leaving it to a manual switch the operator has to remember to flip. On a two-speed system like Hyundai's, that means the machine itself senses load and shifts into low range when it detects the travel motors are being asked for more torque than high range can comfortably deliver -- climbing a ramp, crossing soft ground, or pushing through debris. CAT's travel system runs its own version of load-sensing control to manage motor displacement without the operator needing to think about it. The net effect on either brand is that an operator who's never been formally trained on the nuances of two-speed travel still gets most of the benefit automatically, which matters a lot on crews where operators rotate between machines.

What doesn't show up in any brochure is how the travel motor and final drive behave as they age. A final drive with worn planetary gears will often still hit its rated top speed on flat, firm ground, masking the wear until the machine is asked to climb something -- at which point a tired final drive reveals itself as a machine that bogs down well short of its rated drawbar figure. That's one more reason a pre-purchase inspection on a used unit should include an actual loaded-climb test, not just a flat-ground speed check.

What a Quarter-Mile-Per-Hour Actually Means

It's tempting to dismiss a 0.1 mph gap in high-gear travel speed as meaningless, and on a single trip across a jobsite, it is. Over a full year of repositioning a machine dozens of times a day on a large site, though, small speed differences compound into real minutes, and real minutes compound into real labor cost. The honest takeaway is that neither the drawbar gap nor the top-speed gap between these two machines should be the deciding factor in a purchase -- they're close enough that other considerations (dealer support, attachment compatibility, operator familiarity, purchase price) will matter more. What should factor in is whether you specifically need a documented, automatic low-range travel mode for the terrain you work, because that's the one place these two machines genuinely part ways on paper.

Named Example: A Pipeline Crew's Decision

A pipeline right-of-way contractor working rolling terrain in the mid-Atlantic region ultimately chose a Hyundai HX220A L for a fleet addition specifically because of the documented low-range travel mode -- their prior machine, a high-speed-only unit, had repeatedly struggled to self-climb onto a trailer parked on a graded but still-sloped staging area after a wet week. That's a narrow, specific use case, but it's exactly the kind of detail that should drive a final-drive decision instead of a half-percent drawbar gap that will never actually be felt in the field.

Maintenance and Rebuild Reality

Final drives on both brands are sealed planetary units designed to run for the full life of the undercarriage without major service, assuming track tension and lubrication are maintained correctly. When a final drive does eventually need rebuilding -- usually well past 8,000 hours on either brand if maintained properly -- the job is a similar scope either way: pull the travel motor, inspect or replace the planetary gearing, reseal, and reinstall. The real cost driver isn't brand; it's whether the machine was run with chronically loose tracks or contaminated gear oil, which accelerates wear regardless of whose name is on the side of the machine.

The Rent-vs-Own Case

A rented excavator's final drive history is invisible to you -- you have no idea how many hours it's spent climbing loaded ramps in low range, or whether the last renter kept the tracks properly tensioned. Owning the machine means that wear history is yours, start to finish, and you can make an informed decision about when a final drive genuinely needs attention versus when it's still well within its service life. For a contractor logging real hours on steep or soft ground, that visibility is worth more over a five-year ownership window than the half-percent gap between these two drawbar figures.

Financing Either Machine

BFC writes excavator financing for contractors buying CAT, Hyundai, or any of the brands in our approved lineup, and we size terms around the job you're actually doing, not just the spec sheet. If low-range crawling torque matters for your terrain, say so when you apply -- it affects which used units are a genuinely good fit for your fleet.

We've also compared these two machines' close cousins on undercarriage design in our CAT 320 vs. Komatsu PC210LC-11 undercarriage breakdown, on hydraulic flow in our CAT 320 vs. Komatsu PC210LC-11 flow comparison, and on factory grade-control philosophy in our CAT Grade with 3D vs. John Deere SmartGrade piece.

That's also the right way to read every spec-sheet comparison in this size class: start with the numbers that are genuinely close, like drawbar pull here, and don't spend energy debating them. Then find the one spec that actually diverges for your specific terrain, and let that single difference do the deciding -- rather than tallying up a dozen near-identical numbers and pretending the sum means something it doesn't.

If you're weighing excavator financing for your fleet, BFC Equipment Loans works with contractors nationwide on both new and used machines, good credit or bad. Start an equipment financing application in minutes, browse our current equipment for sale inventory, or subscribe to the newsletter for more comparisons like this one.