■For work pieces with limitations on the adsorption surface.

Variations	Symbol	Type	Series	Pad diameter	Adapter	Buffer
	U	Oval	ZP	2×4, 3.5×7, 4×10	●	●
	W	Oval	ZP2	3.5×7, 4×10, 4×20, 4×30, 5×10, 5×20, 5×30, 6×10, 6×20, 6×30, 8×20, 8×30	●	●