Lifter is specially designed for slabs from 3/4" - 4" (2 - 10 cm).
It has an extra part - a small plate called "clamp plate" to be used as a combination with the lifter to preclude fragile and brittle slabs from cracking.
Warning:
When working with clamp plate, The Loading is reduced to 350kgs for both models and the grip grane is from 20 to 30 mm (3/4" - 1 1/8")
Minimum Loading: 660lbs (30kgs)