1) What is the weight difference between the 1201802M5 and 1201804M5 tables?
120cm x 180cm x 2” (M5) (FM) = 264 lb's (120 kg)
120cm x 180cm x 4” (M5) (FM) = 288 lb's (131 kg)
2) Functionally, is there a big difference between these two tables, specially if they will be setup on non-isolating stands?
The structural panel is composed of skins laminated to the core. The skins only have to be strong enough to withstand the tensile and compressive forces, which are parallel to their orientation. Perpendicular forces are resisted by the core. The deflection of the table is affected by the thickness of the core. Thicker core = higher rigidity.
The 4 inch core is 8 times more rigid than the 2" core.
3) Is there any advantage in using the 2" table (1201802M5) compared to the 4" one (1201804M5), since the price difference is less than $100?
Since there is very little difference in the weight and price of the two tables, we would recommend the 4" core. The 2" core is used in applications where there may be height restrictions or in smaller breadboards to make them more portable.
In something as large as this table, the 4" core would be appropriate. We would even maybe recommend going with an 8" thick core, depending on how much weight you are loading on the table. (Keep in mind, the 8" thick core is also 8 times as rigid as the 4")
1201808M5FM = 360 lb's (163 kg) Price: Call for quotation