AGT 13.5 HP B&S 1 ton Mini Small Excavator, With Hydraulic Thumb and Swing Boom
The AGT KX12-CB is AGT Industrial's most reach-capable 1-ton gasoline excavator, built around a longer arm configuration and an inverted boom cylinder design that sets it apart structurally from every other machine in the AGT compact lineup. At 0.9 ton and 39 inches wide, it remains a genuinely portable, gate-friendly machine that loads onto a standard trailer and operates comfortably in tight residential and commercial spaces — but its 128-inch ground reach, 114-inch digging height, and 82.5-inch dumping height give it a working envelope that punches well above the typical sub-ton class. The inverted boom cylinder — where the cylinder is positioned above the boom arm rather than below it — protects the hydraulic component from ground-level debris, rocks, and job site impact, meaningfully extending service life on machines that work in rough or rocky conditions. Combined with AGT's standard pilot controls, side swing boom, and hydraulic thumb, the KX12-CB arrives as a fully capable, ready-to-work package suited to operators who need maximum reach and long-term durability in the lightest possible footprint. It's a newer platform in the AGT lineup, making it an appealing choice for buyers who want current-generation engineering rather than an established but older design.
Inverted Boom Cylinder — Protected Hydraulics for Demanding Conditions The KX12-CB's most structurally distinctive feature is its inverted boom cylinder configuration. On a conventional excavator, the boom lift cylinder is positioned on the underside of the boom where it faces direct exposure to ground contact, flying debris, rocks, and material thrown during digging. The KX12-CB mounts the boom cylinder on top of the boom assembly, shielding it from below-grade contact and reducing the likelihood of damage from the very material the machine is designed to move. For operators working in rocky soil, demolition environments, or sites with significant debris, this design choice translates directly to fewer service calls and longer hydraulic cylinder service life — a practical engineering advantage over conventional boom configurations at this price point.
Maximum Reach in the 1-Ton Class With a 3,250mm (128-inch) ground reach, the KX12-CB extends further than any other standard-configuration AGT 1-ton excavator, making it the best-suited machine in the lineup for jobs where material needs to be placed or retrieved from distance — loading trucks, clearing wide trenches, reaching across berms, or working at the edge of embankments without repositioning. The longer arm also contributes to the machine's 114-inch digging height, which enables loading into taller dump truck beds and placing material over obstacles such as walls, fences, and equipment without a secondary move. The 82.5-inch dumping height ensures trucks and hauling equipment can receive material without pulling close to the excavation area.
Pilot Controls — Precision Handling at Sub-Ton Weight The KX12-CB's pilot control joystick system delivers smooth, proportional hydraulic response that makes the longer-arm configuration easier to manage with precision. Because the arm extends further than a standard 1-ton layout, the ability to modulate boom and bucket movements smoothly becomes more important — abrupt mechanical lever inputs on a longer arm amplify unwanted movement and make accurate placement harder. Pilot controls correct for this, giving the operator fine-grained authority over the working end of the machine even at the limits of its reach. The reduced physical effort of pilot controls also reduces fatigue on extended digging sessions, particularly when the operator is working at or near maximum reach for extended periods.
Side Swing Boom — Obstacle-Adjacent Productivity The swing boom offsets the arm laterally independent of track position, enabling the KX12-CB to dig cleanly parallel to walls, foundations, fencing, and curbing without repositioning the machine. This capability is especially productive on the KX12-CB's longer arm platform, where the combination of lateral offset and extended reach allows the operator to cover more ground per setup position than a standard fixed-boom machine could in the same space. Landscaping borders, utility trench runs, and foundation perimeter work all benefit from this combination of spatial flexibility and reach.
Hydraulic Thumb — Seated Material Handling The hydraulic thumb works in conjunction with the digging bucket to grip, lift, and reposition material that a bucket alone cannot secure — stumps, rocks, pipe, debris, and irregular fill. Controlled from the joystick system without leaving the seat, the thumb adjusts continuously to accommodate different material sizes and shapes. On a machine with the KX12-CB's extended reach, the hydraulic thumb makes material handling tasks — clearing demolition debris, placing boulders, managing tree stumps — substantially more efficient by combining the machine's reach advantage with a genuine gripping capability.
Sub-Ton Portability with a Wider Working Envelope At 1,984 lbs and 39 inches wide, the KX12-CB remains a machine that one person can move, transport, and position without ground support. Standard trailer loading, single-operator transport, and gate-width clearance are all preserved despite the longer arm configuration. For operators who move frequently between sites or need to position the machine in spaces that wouldn't accept a 1.5- or 2-ton unit, the KX12-CB delivers a larger effective working range without giving up the transport and access advantages that make the sub-ton class appealing.
Operating Weight: 0.9 Ton (1,984 lbs)
Overall Dimensions: 3,240 mm L × 990 mm W × 2,200 mm H (127.5 × 39 × 86.5 in)
Engine: Briggs & Stratton XR — 420cc gasoline
Horsepower: 13.3 HP (10 kW)
Fuel Type: Gasoline
Fuel Tank: 6.6 L (1.7 gal)
Hydraulic Flow Rate: 21.6 L/min (5.7 GPM)
Hydraulic Pressure: 16 MPa (2,320 PSI)
Hydraulic Tank Capacity: 18 L (4.7 gal)
Battery: 12V, 45–60 Ah
Max Digging Height: 2,900 mm (114 in / approx. 9.5 ft)
Max Dumping Height: 2,100 mm (82.5 in / approx. 6.9 ft)
Max Reach at Ground Level: 3,250 mm (128 in / approx. 10.7 ft)
Dozer Blade Width / Height: 950 mm / 230 mm (37 × 9 in)
Blade Lift / Drop Range: 190 mm / 190 mm (7.5 in each)
Track Size: 180 × 72 × 37 (Width × Pitch × Links)
What's Included: Standard digging bucket, hydraulic thumb, canopy