Workstations with Static-Dissipative Tops
Workstations with Static-Dissipative Tops
- Static-dissipative laminate (10^7 ohms/sq) safely dissipates charges to reduce ESD danger
- Sealed undertop and clean materials— compatible with Class 100 / ISO 5 cleanroom
- Adjustable “A” base is standard. Custom recessed “C” base shown
- Custom modular overhead fluorescent light fixture provides shadow-free viewing
- Nylon leveling feet resist a broad range of chemicals and eliminate wobbles for high-precision work
- Other options include modular drawer unit, casework, shelves, power strip
This work station is ideal for static-sensitive materials that can be degraded or destroyed by the charges generated by conventional benchtops.
It features a dissipative laminate top bonded to a 1.25" (32 mm) high-density, epoxy-bonded fiber core. Edges are covered with plastic, and backing is provided on the bottom of the work surface to meet ISO 5 cleanroom standards.
Static-Dissipative Plastic Laminate combines the chemical- and heat-resistive properties of plastic laminate with a controlled path to ground for dissipation of static charge without voltage suppression ambiguity. This laminate has a micro-thin layer of aluminum oxide (moho hardness of 9; diamond - 10) integrated directly into its surface, creating an extremely hard protective layer, which provides long-term resistance to surface abrasion. This material has also been specifically tested for particle trapping (see test results below.) Each sheet used in fabrication is individually certified to meet the values set forth below:
- General Thickness: .040 Nominal
- Chemical Resistance: Resistive to common solvents such as Acetone, Trichloroethylene, Solder Flux, Isopropyl Alcohol, and Naptha
- Thermal Resistance: 350°F with no charge per NEMA LD 3.06 and NEMA LKD 3.08; molten solder will not mar surface
- Abrasion Resistivity: Typical NEMA Value—1550 cycles; Wear Rate of .006 gm/100 cycles
- Cleaning: Clean with water only, or with a mild, nonabrasive, ammoniated detergent and rinse; DO NOT use wax or other coatings
Electrical Specifications
| Specification | Typical | Certified |
|---|---|---|
| Surface Resistivity per ASTM D-257: | 107 Ω/sq | 106-9 Ω/sq. |
| Resistance to Ground Ohms—NFPA 99: | 107 | 106-9 |
| Decay Rate per Fed Test 101C, Method 4046 (5,000 to 0 Volts): | .01 sec. | .5 sec |
Particle Trapping Test
| Particles/cu. ft. Air in 16 Sq. In. Area (microns) | Typical | Certified |
|---|---|---|
| Sample | 10 | 5 |
| Cleanroom Air | 0 | 1 |
| Water Washed Sample | 9 | 9 |
| Ethyl Alcohol Washed Sample | 10 | 15 |
| Acetone Washed Sample | 7 | 10 |
| Freon TF Washed Sample | 17 | 12 |
| Silica Gel & Iron Oxide-Contaminated Surface Washed with Ethyl Alcohol: | 5 | 20 |
These counts are very low. Under the same test conditions, a material which does shed particles would give off thousands of particles in the 10- and 5-micron range. This material is thus certified as cleanroom safe.
Non-Conductive Laminate shares many characteristics with static-dissipative laminate, except surface resistivity. In surface resistivity tests, this laminate material measured between 4.1 x 1011 and 7.4 x 1012 Ω/sq. It is generally resistive to most solvents as well as hot solder; however, mineral acids (such as hydrochloric, sulphuric, or nitric acid) should not be allowed to contact to laminate. This material is suitable for cleanroom use and will not outgas.
Clean, Versatile—and Static Safe
The dissipative laminate tops safely dissipate electrostatic charges to allow operations on static-sensitive devices—these benches meet MIL-B-81705-B specifications. They also resist a wide range of chemicals. Standard color is non-glare white.
Like our standard work stations, this station also features a heavy-duty bench frame made of all-welded square tubing. The heavy-wall tubing used in the construction allows the factory-mounted benchtop to support much heavier loads than conventional benches without sagging. The "A" base, adjustable from 25" to 34" (635 mm to 864 mm) floor-to-top feature a white epoxy enamel or powder-coat finish. Finished "A" bases are available with a 304 stainless steel lower leg member to provide this additional scuff protection. Include leveling feet to provide stability.
Other system options include easy-clean Modular Cleanroom Drawers and casework for efficient document and supply organization, with convenient access.
Many other models available: including static-dissipative and acid-resistant work surfaces, vibration-isolation systems, ErgoHeight™ and UltraClean™ work stations!
