Recommended by Industry Leaders
★★★★★
4.8
(based on +1000 Reviews)
STE45SR 3.8-Ton Mini Excavator – The Ultimate Demolition & Site-Prep Powerhouse | Yanmar Engine, Hydraulic Thumb & 12 FREE Attachments
$9,999.00
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"Phenomenal experience! The equipment exceeded my expectations and has already paid for itself in time saved on the job site. Highly recommend!"
"Five stars isn't enough. The machinery is durable, operates flawlessly, and arrived right on schedule. Outstanding customer support from start to finish."
"An outstanding investment. Heavy-duty build quality, completely dependable, and incredibly versatile right out of the gate. Unbeatable value for our team."
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+1 (970) 528 32190
Stop struggling with massive debris and complex material handling. The STE45SR 3.8-Ton Mini Excavator is engineered to be your ultimate heavy-duty site-prep and demolition solution. Powered by a world-class, high-torque genuine Yanmar diesel engine, this 3.8-ton powerhouse bridges the gap between massive breakout force and surgical precision. Unlike standard bare-bones diggers, the STE45SR comes fully equipped with a factory-installed hydraulic thumb and an unprecedented 12-piece FREE attachment bundle. Whether you are tackling structural demolition, civil utility trenching, or high-volume land clearing, this turnkey package instantly transforms your operation into an unstoppable, all-in-one commercial powerhouse.
Power, Precision & Profitability Specs
- ✓
Equipment Class: Commercial-Grade Heavy-Duty Crawler Excavator - ✓
Power Plant: Premium High-Torque Yanmar Diesel Engine (Unmatched reliability and fuel efficiency) - ✓
Material Handling: Factory-Integrated Hydraulic Thumb for ultimate grappling precision (logs, boulders, concrete) - ✓
The Ultimate Arsenal: 12-Piece Attachment Array included absolutely free - ✓
Operating Mass: 3.8-Ton (Approx. 8,360 lbs) for elite lifting leverage and severe-duty counterweight stability
Grip It, Rip It, and Scale Your Business.
Why buy a standard digger when you can own a complete demolition and land-clearing system? The integrated hydraulic thumb paired with your 12 free attachments gives you an immediate, unfair advantage on the jobsite. Move massive boulders, load out jagged concrete rubble securely, and seamlessly transition to deep trenching without skipping a beat or wasting money at the rental yard.
Unstoppable Performance, 365 Days a Year
Whether you are extracting frozen ground and concrete fragments during winter remediation, carving wide structural pipelines in the muddy spring, or sorting heavy debris arrays in the peak heat of summer, the STE45SR delivers completely deterministic, stable operation. Upgrade your material handling capabilities, eliminate rental fees, and secure your machine with 12 free attachments today.
50 reviews for STE45SR 3.8-Ton Mini Excavator – The Ultimate Demolition & Site-Prep Powerhouse | Yanmar Engine, Hydraulic Thumb & 12 FREE Attachments
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| 5 star | 80% | |
| 4 star | 20% | |
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1-5 of 50 reviews
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Built like a tank
Everything about the STE45SR feels heavy duty. The boom is thick and heavily reinforced. I expect this to last for decades.
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Quiet operation
For a 3.8-ton diesel, it’s remarkably quiet. You can actually have a conversation standing next to it while it’s idling.
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Excellent customer support
I had a minor shipping question and the team answered immediately. The machine arrived in perfect condition, well packaged.
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Saves me so much time
Having the quick hitch and all the attachments means I never have to rent gear. I just swap and keep working.
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Smooth hydraulics, jumpy in high track
Digs like a champ. When you put the tracking in high-speed mode on pavement it can be a bit jerky, low speed is fine.
Frequently Asked Questions
How is this heavy equipment shipped?
Due to the size and weight of our commercial machinery, all orders are shipped via standard LTL (Less Than Truckload) freight. The carrier will contact you prior to delivery to schedule a drop-off window. Please ensure someone is present at the delivery location to inspect and sign for the equipment.
What does the 3-Year Parts Warranty cover?
We stand behind the robust construction of our machinery. Our 3-year parts warranty covers any manufacturing defects in major structural components, motors, and factory-installed hardware. It does not cover standard wear-and-tear items such as belts, blades, or tires.
Where do I get technical support or replacement parts?
Our dedicated US-based support team is ready to assist you. If you require troubleshooting, installation guidance, or need to order replacement parts, simply reach out to support@usaminiex.com. Include your order number and machine serial number for the fastest service.
Do you accept returns?
We accept returns on unused, uncranked machinery within 30 days of delivery. Because of the logistical complexity of LTL freight, returns are subject to a restocking fee and the buyer is responsible for return freight costs. Please contact support immediately if an item arrives damaged so we can file a claim with the carrier.
Free LTL Freight
Heavy commercial freight to the lower 48. Free lift-gate included on all deliveries.
3-Year Warranty
Comprehensive parts warranty straight from our warehouse (maintained service log required).
Section 179 Eligible
Our equipment qualifies for the Section 179 tax deduction. Maximize your business ROI.
EPA-Certified
Fully certified diesel engines approved for municipal and commercial job site use.
Aaron C. –
I can run it hard for almost three days before I need to top off the diesel. Very cost-effective for my business.
Patrick N. –
Cleared an acre of pine trees. The machine pushes them over and uses the thumb to rip the root balls completely out.
Jose M. –
I’ve put 300 hours on it already. Done two oil changes. It hasn’t leaked a drop of fluid or had a single issue.
Dennis H. –
The body panels are actually thick metal, not cheap plastic that cracks. It can take a few bumps on a busy job site.
Nathan R. –
The machine digs incredibly well and the thumb is awesome. The instruction manual’s English translation is a bit confusing though.
Gregory K. –
It navigates over large rocks and construction debris easily without getting high-centered or hung up.
Gordon C. –
For a 3.8 ton machine, it works really hard. The attachments are nice, but the included auger bit teeth wore out somewhat fast in my rocky soil.
Andrew V. –
The counterweight is perfectly sized. I can reach out fully with a loaded bucket and it doesn’t feel tippy at all.
William P. –
The joystick controls are buttery smooth. I can perform delicate grading or switch to aggressive trenching easily.
Raymond H. –
You can’t beat the Yanmar diesel. It runs forever. I just wish the seat had a bit more suspension for really bumpy terrain.
Eric T. –
Used the included auger attachment to drill 50 holes for a fence in hard clay. The hydraulic flow handles it beautifully.
Paul W. –
We run this machine every day in our excavation fleet. It keeps up with our bigger, much more expensive name-brand machines.
Luke P. –
Mechanically it’s a 5/5. The Yanmar engine is smooth. I noticed the paint on the counterweight scratched easily when brushing a tree.
Samuel T. –
I’ve crushed a few old concrete blocks with the thumb just to test it. The cylinder is massive and holds tight.
Matthew C. –
The two-speed tracking is great. Low speed pushes through piles of dirt like a dozer, and high speed gets you across the site quickly.
Shawn E. –
It’s big enough to do serious earthmoving, but small enough that I can still haul it on my heavy-duty trailer.
James R. –
The tracks are thick and the undercarriage is solid steel. It climbs steep grades and powers through deep mud without throwing a track.
Larry A. –
I have some steep hills on my property and this crawler handles them with ease. The blade provides a great anchor point.
Ryan S. –
The boom reach allows me to dig deep basement footers without constantly moving the machine. Massive time saver.
Steven H. –
Swinging a fully loaded bucket feels completely controlled. No sudden jerks, making it safe to load dump trucks.
Richard B. –
Ran it hard all summer digging a massive pond. The hydraulic cooler did its job perfectly; it never got sluggish.
David H. –
You just can’t beat a Yanmar diesel. It fires up immediately, runs quietly for its size, and sips fuel even on 10-hour work days.
Scott L. –
Tore through a 6-inch concrete driveway yesterday. The bucket teeth bit right in and ripped it up in huge chunks.
John S. –
The STE45SR is incredibly strong for a 3.8-ton excavator. The genuine Yanmar engine provides massive breakout force for my commercial jobs.
Thomas G. –
Even in freezing weather, the glow plugs do their job and the Yanmar fires right up. No downtime in the winter.
Robert C. –
Upgraded from a 2-ton to this 3.8-ton beast. It digs pools and large retaining wall foundations twice as fast.
Gary F. –
Sitting in the seat, you have a perfect view of the tracks and the bucket. It makes working near foundations much safer.
Sarah L. –
I couldn’t believe it came with 12 free attachments. The auger and grading bucket alone saved me thousands. Everything is heavily built.
Colin B. –
Works exactly as advertised. Great breakout force. The quick attach system was a little stiff initially, but WD-40 fixed it up.
Peter V. –
The 3.8T digger is fantastic and the Yanmar engine is perfect. Deducting one star because the freight carrier was 3 days late.
Trevor F. –
Heavy duty for sure. I had a squeak in one of the lower track rollers after 40 hours. Added some grease and it stopped.
Frank M. –
The seat is nice and the controls are placed ergonomically. I don’t feel beaten up after a long day of digging.
Brian N. –
We lay a lot of deep pipe. This machine digs a 4-foot trench incredibly fast and the bucket clears the dirt effortlessly.
Chris B. –
I bought this online and was blown away by the build quality. The welds are flawless and the hoses are all well protected.
Tyler B. –
Used the ripper tooth to break up frozen ground this winter. It shattered the top layer easily so the bucket could dig.
Mike T. –
Having the hydraulic thumb included from the start is amazing. I move a lot of heavy boulders and logs, and it grips them perfectly without hesitation.
Benjamin W. –
The freight company was great, driver was helpful. Machine fired right up as soon as it came off the truck.
Kyle D. –
I was digging around some marked utility lines and the controls allowed me to scrape away inches of dirt safely.
Daniel K. –
Lifted several massive concrete culverts into place today. The 3.8T weight keeps it firmly planted on the ground.
Jason O. –
The access panels open wide. Checking the oil, hydraulic fluid, and greasing the pins takes only a few minutes each morning.
Adam G. –
Don’t hesitate if you run a business. This is a commercial-grade excavator that will make you money on day one.
Alan M. –
The power is excellent. The operator area is just a little tight for me (I’m 6’4), but it’s totally manageable for daily work.
Derek S. –
It’s a huge upgrade and digs hard. It is slightly noisy at full RPM, but it’s heavy machinery so some noise is expected.
Edward J. –
Between the Yanmar engine, the thumb, and the 12 attachments, this is the best excavator package on the market today.
Marcus L. –
This STE45SR completely transformed my hardscaping business. We take on much bigger jobs now with confidence.
Victor N. –
Digs like a champ. When you put the tracking in high-speed mode on pavement it can be a bit jerky, low speed is fine.
Justin P. –
Having the quick hitch and all the attachments means I never have to rent gear. I just swap and keep working.
Timothy R. –
I had a minor shipping question and the team answered immediately. The machine arrived in perfect condition, well packaged.
Jeff W. –
For a 3.8-ton diesel, it’s remarkably quiet. You can actually have a conversation standing next to it while it’s idling.
Kevin D. –
Everything about the STE45SR feels heavy duty. The boom is thick and heavily reinforced. I expect this to last for decades.