Fison Liquid Limit Apparatus FM-LLA-A100 uses an electric motor drive with automatic and manual mode switching to drop the disc 120 times per minute from a height of 10 mm. The brass plate and grooving knife of this liquid limit testing equipment have a surface roughness of Ra ≤ 3.2 μm, and the copper disc and connecting block have a total mass of 200 ± 2 g. A built-in automatic counter tracks the number of strikes during each test.
| Operating Mode | Electric motor drive, with automatic and manual mode switching |
| Disc Drop Frequency | 120 strikes/minute |
| Drop Distance (height the disc falls) | 10 mm (0.3937 in) |
| Counter | Built-in automatic counter |
| Copper Plate and Grooving Knife | Brass, surface roughness Ra ≤ 3.2 μm |
| Total Mass of Copper Disc and Connecting Block | 200 ± 2 g |
| Power Supply | 220 to 240 V AC, 50/60 Hz |
| Operation Interface | Color touch screen |
| Weight | 6.6 kg |
Liquid Limit Apparatus FM-LLA-A100 is used in soil testing laboratories to determine the moisture content at which soil changes from the plastic state to the liquid state. It follows the Casagrande method under standardized conditions, and its motorized cup rotation reduces manual effort during testing.
