The LM531 is lightweight, low tread pressure and grass-friendly design. The mower unit can be selected from three types of "5 inch diameter unit model","high grade model", "lightweight and simple model" with new design.
| Dimensions | Total length | 303 cm | |
| Total width | During operation | 296 cm | |
| During transport | 220 cm | ||
| Total height | ROPS | 196 cm | |
| Steering wheel | 133 cm | ||
| Weight | Machine (empty fuel tank) | with Slight lift, ROPS | 1,250 kg |
| Minimum turning radius | 280 cm | ||
| Engine | Model | Kubota V2403-CR-E4B | |
| Type | Vertical water-cooled 4-cycle diesel engine | ||
| Total displacement | 1,123 cm3 (1.123 L) | ||
| Maximum output | - | ||
| Rated output | 18.5 kW (25.2 PS)/3,000 rpm | ||
| Fuel tank capacity | Diesel 38.0 dm3 (38.0 L) | ||
| Operating width (Mowing width) | 252 cm | ||
| Operating height (Mowing height) | 10.0 - 60.0 mm | ||
| Number of Blades | 9 | ||
| Drive | Traveling | HST (2WD/4WD selectable) | |
| Mowing | Hydraulic | ||
| Speed (HST) | Forward | 0 – 15.5 km/h | |
| Reverse | 0 - 8.0 km/h | ||
| Efficiency | 20,160 m2/h (10.0 km/h x mowing width x 0.8) |
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※The factory default maximum engine rpm is 3,100 rpm.