Laboratory Jacks Description: Aluminium plates providing a rigid support platform.The scissor action movement is activated by a large control knob , LJ450 have a tapped hole with locking nut in the top plate which accepts an M10 threaded retort rod. Item no. Size(mm) Max height(mm) Max static load(kg) LJ450-100 100 x 100 140 30 LJ450-150 150 x 150 280 60 LJ450-200 200 x 200 290 60 LJ450-250 250 x 250 380 60 Qty :