Mini Excavator Attachment Sizing for Thumbs, Augers and Breakers
Match hydraulic thumbs, augers, and breakers to your mini excavator by verifying pin groups, couplers, and auxiliary flow. A spec snapshot of popular minis helps right size your setup.

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Bobcat 331E mini excavator specifications: excavator type Mini Excavator, weight 3519 kg, horsepower 30 kW, digging depth 393 cm.
| Specification | Metric | Imperial |
|---|---|---|
| Excavator Type | Mini Excavator | |
| Weight | 3519 kg | 7758 lbs |
| Horsepower | 30 kW | 40 HP |
| Digging Depth | 393 cm | 155 in. |
| Max Digging Depth | 393 cm | 155 in. |
| Max Loading Height | 341.4 cm | 134.4 in. |
| Max Reach Along Ground | 563.9 cm | 222.0 in. |
| Max Digging Reach | 390.1 cm | 153.6 in. |
| Max Vertical Wall Digging Depth | 256.0 cm | 100.8 in. |
| Overall Length | 502.9 cm | 198.0 in. |
| Track Length | 1889.8 cm | 744.0 in. |
| Length of Track on Ground | 158.5 cm | 62.4 in. |
| Tail Swing Radius | 140.2 cm | 55.2 in. |
| Overall Width | 155.4 cm | 61.2 in. |
| Engine Make | Kubota | |
| Engine Model | V-2203-M-DI-E2B | |
| Net Power | 30 kW | 40 HP |
| Gross Power | 32.1 kW | 43.1 HP |
| Rated Power | 2400 RPM | |
| Hydraulic Pump Flow Capacity | 91 LPM | 24.1 GPM |
| Operating Weight | 3519 kg | 7758 lbs |
| Max Travel Speed | 5.6 km | 3.5 mph |
| Swing Speed | 9.2 RPM | |
| Cab Height | 237.7 cm | 93.6 in. |
| Fuel Capacity | 57.9 l | 15.3 gal |
| Ground Pressure | 31.7 kPa | 4.6 psi |
| Displacement | 2200.8 cc | 134 cu. in. |
| Shoe Size | 32.0 cm | 12.6 in. |
| Max Cutting Height | 481.6 cm | 189.6 in. |
| Track Gauge | 125.0 cm | 49.2 in. |
| Removal Counterweight Clearance | 51.8 cm | 20.4 in. |
Source: heavyequipments.net archive (imported 2026-10). Values may vary by variant and production year; seller claims are shown separately on the listing page.
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Match hydraulic thumbs, augers, and breakers to your mini excavator by verifying pin groups, couplers, and auxiliary flow. A spec snapshot of popular minis helps right size your setup.
Half the battle is sizing your mini excavator. Match depth and reach to the job, scan real specs, and avoid surprises on delivery, hauling, and rates.
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