Summit DB-22
20–22 ton class digging bucket, 1.2 m³, Hardox cutting edge

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John Deere 320 skid steer specifications: type Skid steer, lift design Vertical, years made 2005-2009, horsepower 49.2 kW.
| Specification | Metric | Imperial |
|---|---|---|
| Type | Skid steer | |
| Lift Design | Vertical | |
| Years Made | 2005-2009 | |
| Horsepower | 49.2 kW | 66.0 HP |
| Rating Operating Capacity (35% Tipping) | 612.3 kg | 1350 lbs |
| Rating Operating Capacity (50% Tipping) | 884.5 kg | 1950 lbs |
| Operating Weight | 2918.9 kg | 6435 lbs |
| Tipping Load | 1769.0 kg | 3900 lbs |
| Lift Breakout Force | 2494.8 kg | 5500 lbs |
| Tilt Breakout Force | 1406.1 kg | 3100 lbs |
| Maximum Travel Speed | 10.9 km | 6.8 mph |
| Pump Capacity | 71.9 LPM | 19.0 GPM |
| Relief Valve Pressure | 237.9 Bar | 3450 psi |
| Optional Pump Capacity | 117.3 LPM | 31.0 GPM |
| Hydraulic Tank Capacity | 115.1 L | 30.4 gal |
| Engine Manufacturer | John Deere | |
| Engine Model | 4024 T | |
| Engine Type | Diesel | |
| No of Cylinders | 4 | |
| Rated Speed | 2800 RPM | |
| Torque Speed | 1950 RPM | |
| Combustion Chamber | Direct injection | |
| Emissions | Tier 2 | |
| Compression Ratio | 18.2:1 | |
| Firing Order | 1-3-4-2 | |
| Gross Power | 49.2 kW | 66.0 HP |
| Displacement | 2441 cc | 149 cu in. |
| Bore | 8.6 cm | 3.1 in. |
| Stroke | 10.5 cm | 4.4 in. |
| Peak Torque | 219.6 N∙m | 162 ft-lb |
| Coolant Capacity | 6.6 L | 1.7 gal |
| Engine Oil Capacity | 9.0 L | 2.4 gal |
| Fuel Tank Capacity | 60.6 L | 16.0 gal |
| Cab Height | 195.2 cm | 76.9 in. |
| Bucket Hinge Pin Height | 293.1 cm | 115.4 in. |
| Width | 177.0 cm | 69.7 in. |
| Length with Bucket | 320.3 cm | 126.1 in. |
| Dump Height | 229.0 cm | 90.2 in. |
| Dump Reach | 71.4 cm | 28.1 in. |
| Ground Clearance | 24.4 cm | 9.6 in. |
| Dump Angle | 45 ° | |
| Rollback Angle | 35 ° | |
| Departure Angle | 27 ° | |
| Front Tire | 12×16.5 | |
| Rear Tire | 12×16.5 |
Source: heavyequipments.net archive (imported 2026-10). Values may vary by variant and production year; seller claims are shown separately on the listing page.
20–22 ton class digging bucket, 1.2 m³, Hardox cutting edge
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