hdredeer5d1

Innovative Products for the Optical Laboratory

VERE FAQ’s

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 


4) Please help with my choice of skins. Does it change the performance?

All of our breadboards and Tables use the same high performance nonmetallic core.  The dynamic performance does not significantly change with the choice of skin material.  weight and magnetic properties of the end product are the deciding factors of what skin material to choose.  If in doubt of which material will best suit your application, please consult our Sales dept.


Skins: Top & bottom skins are the same material unless noted otherwise*
 

  • Ferromagnetic Steel 0.125in (3mm),
  • Aluminum 0.187in (4mm),
  • "Ultra" Light Weight 0.25in (6mm),
  • Titanium 0.032in (.8128mm),
  • Stainless Steel 0.125in (3mm):

    • 300 series SS Top & Bottom

      400 series, SS Top, Ferromagnetic Bottom*

Impulse response chart: A commonly used test to demonstrate the damping characteristics of a breadboard. Faster damping times indicate few resonances and a damped core design. 

CORE:

  • Non-metallic, 3/8” Cell Honeycomb
  • Vertically Bonded, >35,000PSI Shear
  • Waterproof
  • Acid Resistant

 


Holes:

  • 1/4-20 or M6 Standard
  • 8-32 Optional

Border: 1st row 2" from edge (50mm)

Finish:
Standard: Anti-reflective black polyurethane.

Optional: Black anodized or Natural with matte finish

Dimensional tolerances

Length, width: +0.05 -0.125in (3.2mm)


Thickness: 0.1in (2.5mm)


Hole positions wrt other holes: 0.004in (0.1mm)


Hole wrt edges: 0.1in (2.5mm)


Flatness (top surface): 0.01in over 1 ft distance (0.25mm over 30cm)

Compliance chart: A compliance test is an indicator of how good a board is when compared to an ideal rigid body. Resonant frequencies and modes of the board are evident in the compliance frequency spectra.

Deflection:

 12”x 36”x 2” (E1) thick supported at 24"                    = 32 µin/lb, 1.5µ/N
 

 48”x 96” x8” (E1)  supported on legs
              = 2 µin/lb, 0.1µm/N
 

Max static load before failure: 

12” x 36” x 2” (E1) supported at end
            >11,000lbs, >5000N


Max compressive load:

         >55lbs/in², >3.9N/cm²