BioSafe Stainless Steel Work Stations

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  1. Stocked
    BioSafe® Stainless Steel Cleanroom Tables
    From
    $1,161
    Some ship in 1 - 3 days
    BioSafe classic logoBioSafe classic logoStockedStockedUL Weight Limit 1200 LBUL Weight Limit 1200 LB
    1 Load Capacity1 Top Material2 Top Design1 Frame Material7 Width3 Depth1 Height

    • Cleanroom workstation suitable for classifications as strict as Federal Standard 209E Class 1/ISO 3
    • BioSafe® design eliminates cracks and crevices where microbes can collect and colonize
    • Fully-welded, no assembly required
    • Bull-nose rounded table top increases operator comfort, reduces particulate shedding from abrasive edges
    • Heavy-duty table tested by UL with 3,600lbs for 3x safety factor and 1,200lb rating
    Load Capacity: 1200 lb
    Top Material: 304 Stainless Steel
    Top Design: Solid, Perforated
    Frame Material: 304 SS
    Width: 24", 36", 48", 60", 72", 84", 96"
    Depth: 24", 30", 36"
    Height: 30"
  2. Stocked
    Stainless Steel Lab Table with Backsplash
    From
    $1,578
    Some ship in 1 - 3 days
    StockedStockedUL Weight Limit 1200 LBUL Weight Limit 1200 LB
    1 Load Capacity1 Top Material1 Top Design1 Frame Material6 Width2 Depth1 Height2 Marine Edge

    • 4"H seamless protects floor and wall surfaces from spills or splashes of dry or wet chemicals
    • Backsplash also protects items from falling off backside of table
    • Optional marine edge around perimeter of tabletop helps contain spills
    Load Capacity: 1200 lb
    Top Material: 304 Stainless Steel
    Top Design: Solid with Backsplash
    Frame Material: 304 SS
    Width: 24", 36", 48", 60", 72", 96"
    Depth: 24", 30"
    Height: 34"
    Marine Edge: No, Yes
  3. Stocked
    Work Stations with Stainless Steel Solid Tops
    From
    $1,070
    Some ship in 1 - 3 days
    StockedStockedUL Weight Limit 1200 LBUL Weight Limit 1200 LB
    1 Load Capacity1 Top Material1 Top Design1 Frame Material5 Width1 Depth1 Height

    Load Capacity: 1200 lb
    Top Material: 304 Stainless Steel
    Top Design: Solid
    Frame Material: PCS
    Width: 48", 84", 60", 72", 96"
    Depth: 30"
    Height: 25"-34"
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Work Station Resources
  • Stainless Steel Table Tops with Powder-Coated Bases
  • Tables and Workstations Feature Comparison Overview Chart

Work Station Features

BioSafe®: Terra's Ultimate Cleanliness Rating

Terra's BioSafe products are designed for life science applications: no gaps and crevices where microbes can colonize, rounded corners for easy disinfection, won't produce contaminants during sterilization, and exceed cGMP, IEST, ASTM and ISO 14644-1 requirements.

High Caliber Hardware

Seemingly small details like latches, ports, glides and hinges are often overlooked or ignored by other manufacturers, and later become the point of costly recurring maintenance or equipment failure. Terra’s products are made of long lasting, cleanroom compatible, top tier hardware. Individual components are carefully designed and rigorously tested to guarantee the highest quality, durability, and craftsmanship.

Non-Marking and Chemical Resistant Adjustable Nylon Feet

Cleanroom compatible non-marking feet prevent damage to cleanroom flooring. The chemical resistant Nylon plastic base provides a smooth non-abrasive surface to protect floors. Wide diameter pads provide solid leveling and support. The stainless steel threaded shaft allows for quick adjustment without tools to fix tilting or wobbling. Tightening nuts above each Nylon base help clamp and secure each foot to prevent “unwinding”.

OpenTop Perforated Top

Hidden reinforcements minimize dead spots, add strength, and eliminate deflection without dead spaces whereas conventional perforated tops rely on “blank out” support panels, which create turbulence in cleanroom laminar flow.

Bull-Nose Rounded Edge Comparison

Terra's one-piece bull-nose rounded edges increase operator comfort and reduce particulate shedding caused by sharp or abrasive edges. The smooth, continuous-seam welds also eliminate cracks and crevices that can harbor contaminants.

Continuous-Seam Welds for Stringent Cleanliness

Continuous-seam welds provide a smooth finish that is easy to clean. Eliminates hard-to-clean cracks, crevices, and partial welds where particles and germs can accumulate.

Stainless Steel Cleanroom Tables with Perforated Tops

Stainless Steel Cleanroom Tables with Perforated Tops use 0.25”-diameter cut-outs that open up 40% of the surface for airflow (optional “C” base shown).

UL-Tested Cleanroom Workbenches for Highest Quality and Safety

Ensuring the safety of your personnel and equipment is essential. UL is recognized around the world as the leader in product safety testing and certification. Terra’s cleanroom workbenches are tested by UL to meet the strictest safety and stability standards.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Heavy-Duty Fully-Welded Design, No Assembly Required

Fully-assembled cleanroom workstations minimize contamination introduction via assemblers, tools, or dirty assembly environments. U-shaped channels underneath the table support heavy loads and help keep the tabletop flat. The welded leg-bracing eliminates instability and protects the leg posts from damage and warping.

Adjustable Telescoping Legs

Workstations include telescoping legs to enhance ergonomics, reduce shipping cost, integrate with existing tables or casework, and support multiple operators who require different work surface heights. Each telescoping workstation is tested to ensure a weight load of 1,200 pounds.

UL-Tested Cleanroom Workbenches for Highest Quality and Safety

Ensuring the safety of your personnel and equipment is essential. UL is recognized around the world as the leader in product safety testing and certification. Terra’s cleanroom workbenches are tested by UL to meet the strictest safety and stability standards.

Arrange Accessories to Suit Your Needs

Customize your cleanroom workstation with drawer and shelf systems to add clean, convenient storage where you need it. Cantilever shelves can be adjusted to any height. Mix and match 3”, 6”, and 12”H drawer systems.

Clean and Durable Powder Coat Finish

Terra’s signature white powder coat finish provides a high quality, durable barrier to protect against corrosion, plus a clean and attractive aesthetic. The advanced heat-fused formulation exceeds ASTM and ISO paint standards to resist chipping, scratching, fading, and wearing.

Seamless Backsplash Protects Items from Falling

Seamless coved backsplash provides a vertical barrier to prevent items from falling off the back side of the table. It also meets sanitary protocol: easy to clean and won't harbor contaminants.

Marine Edges Contain Spills

Stainless steel backsplash tables with 0.5" (13 mm) marine edges safely contain spills; seamless, all-welded construction eliminates germs traps and simplifies cleaning.

Perforated Storage Shelf

Twelve-inch-deep stainless steel shelf with perforations simplifies clean-up and reduces overall surface area. Clean laminar air flows unobstructed through openings.

Adjustable Height

Create a stable stand-up, or sit-down work station to meet the application’s needs, or make tasks more comfortable for workers. Table height adjusts from 25” to 34”, and locks into place.

Work Station and Table Designs

  • Custom electropolished steel sink station, recessed top backsplash and perforated shelf Custom Electropolished 304 Stainless Steel Sink Station, Backsplash and Shelf
  • Ergo Height Auto Adjustable Cleanroom Work Station
  • Cleanroom workstation with cantilever shelves and stainless steel drawers Arrange Accessories to Suit Your Needs
  • Steel workbench with drawers, electrical outlets, and perforated slanted shelves Custom Electrical Work Bench
  • ErgoHeight Laminate Work Station Cleanroom ErgoHeight Laminate Work Station
  • Polypropylene ergoheight workstation ErgoHeight Adjustable Polypropylene Work Station
  • Cleanroom Stainless Steel Solid Top Bench Stainless Steel, Solid-Top Workstation
  • Cleanroom welded electropolished stainless steel work station bench C-frame Heavy Duty Electropolished 304-Grade Stainless Steel Work Station
  • Chemical Resistant, Epoxy-Resin Top Work Station
  • Cleanroom Adjustable Height Work Station ErgoHeight Adjustable Bench, 304 SS Top, 36"W x 30"D
  • Corian Top Lab Table With Powder Coated Steel Frame Corian® Top Laboratory Table, Adjustable Powder-Coated Frame, 84"W
  • Chemical-Resistant Polypropylene-Top Table Chemical-Resistant Table: Polypropylene Top, Powder-Coated Steel Frame
  • Stainless Steel Lab Table with Backsplash Stainless Steel Lab Table with Backsplash

Technical Resources

Electropolishing Standards and Guidelines

Overview

This document provides a description of the electropolishing procedures performed by Terra Universal. It also specifies a series of criteria for evaluating the integrity and cleanliness of the electropolished surfaces. Because these electropolishing procedures are followed on all work performed by Terra Universal, the results may be understood as indicative of standard Terra Universal electropolishing, and the specified evaluation criteria may be used as acceptance standards for work performed by Terra Universal.

Introduction

Electropolishing is a reverse plating procedure that entails the electrochemical removal of metal (including carbon, silica, iron, and other impurities) from a stainless steel surface.

Prior to electropolishing, parts are mechanically prepared to ensure optimal results. All welds are ground, deburred, and inspected to ensure that all seams are free of pockets or gaps. Finally, selected surfaces are mechanically buffed to a smooth finish.

Next, the part is fitted with electrodes, immersed in an electrolyte solution, and subjected to a direct electrical current. During this electrolytic process, the metallic surface of the the anodic part is removed ion by ion, yielding a nickel and chromium-rich surface free of microscopic “peaks” or “valleys” that could lead to metal fatigue or contamination. Optimal results depend on careful control over the current density, the precise chemical composition of the electrolytic solution, and the temperature and agitation of the bath, and the duration of current exposure.

Unlike mechanically finished stainless steel, electropolished surfaces feature no fine directional lines and hence offer less friction and surface drag. The chromium-rich surface offers excellent light reflection, yielding a bright, smooth and uniform polish.

Electropolishing Procedures

Terra Universal electropolishing is carefully controlled in each of the following areas to ensure the finest results possible.

  1. Material Selection: Terra Universal electropolishing is performed on 304 stainless steel with either a 2B or 4 mill finish. This material standard minimizes the presence of sulfide inclusions and other subsurface contaminants and end-grain or large-grain surfaces that can produce a frosty appearance following electropolishing. Incoming material is also inspected for improper annealing, overpickling, heat scale, and directional roll marks, all of which are accentuated by electropolishing.
  2. Precleaning and Postcleaning: For optimal results, it is important that all surfaces be uniformly exposed to the electrolyte solution, but also that provisions be made to remove all traces of the solution following electropolishing. Failure to remove the solution can result in subsequent outgassing unacceptable in a clean room environment.

    Stainless steel parts intended for electropolishing are designed with these requirements in mind. All welds are carefully inspected to ensure continuous seams, free of pits or gaps where the solution could collect, and all hollow members are drilled to permit effective flushing of the solution after electropolishing.

    Because the electropolishing process removes only a very thin surface layer (typically between 0.001" and 0.0001"), selected surfaces are mechanically buffed, using progressively finer grits to produce the smoothest possible finish.

    Following electropolishing, all traces of the electrolyte solution are thoroughly removed from the part, and any hollow cavities are flushed to eliminate the chance of subsequent outgassing. Surfaces are then dried and buffed with a soft, non-particulating cloth.

  3. Process Controls: The more rigorously the electropolishing process variables are controlled, the higher the quality that can be expected in the finished product.

    Some of these variables are relatively easy to quantify and monitor, although some variation must be exercised in response to a given sample in order to produce the optimal results.

    • Electrolyte Bath: The chemistry of the bath must be constantly monitored, with special attention to the specific gravity (an indicator of water content), the acid concentration, and the metals content.

    • Current: A supply of clean, ripple-free DC power must be available to drive the process, as well as appropriately sized cables and connectors to the anodes and cathodes. Current density (amperes/square foot) must be carefully monitored and regulated.

    For other variables, effective control depends on significant experience. Attention to these considerations, combined with close adherence to the procedures mentioned above, results in a truly superior electropolished finish.

    • Electrode Positioning: Electrode placement is critical to the success of the electropolishing process. Although electrode clamping of objects with a uniform geometrical shape is generally a straightforward task, irregularly shaped objects, which often contain inaccessible cavities or areas exposed to low current densities, present special challenges. Only an experienced technician, equipped with versatile electrode fittings, can ensure optimal results in these situations.

    • Electrolyte Temperature: Varying situations may call for varying temperatures, and heating and/or cooling during the electropolishing process may be required.
    • Electrolyte Agitation: Only an experienced technician possesses the knowledge of where, when and how to agitate either the electrolyte or the part in order to prevent gassing streaks, flow marks, and similar unacceptable surface anomalies.
    • Current Duration: The optimal duration of current exposure depends on the part size and shape. Again, only an experienced electropolisher can control this variable to produce the best results.
Performance Evaluation Parameters
  1. Visual Inspection: The first and most obvious test of the effectiveness of the electropolishing is a close visual inspection. In a closely controlled process performed on high-quality material that is adequately prepared for electropolishing, the surface will appear uniformly brilliant, with no detectable pits, streaks, erosion, "frosting", or other anomalies.

    Unlike mechanical buffing, which distorts the surface of the metal and may conceal the material’s true characteristics, electropolishing reveals the imperfections in the structure of the stainless steel. Electropolishing will accentuate any welding flaws, and a nonuniform appearance indicates a high volume of inclusions or a large-grained grade of stainless steel.

  2. Micrographs: A better test of the integrity of the surface is provided by photomicrographs of the surface. Although a highly buffed (such as a No. 8 mil finish) sample and an electropolished sample may appear equally brilliant to the unaided eye, the differences between the two are apparent when they are viewed under very high magnifications. The sample micrographs below, taken at 1,000X, dramatically illustrate the smooth, featureless surface that results from electropolishing.

Before Electropolishing

This photomicrograph represents the surface of 304 stainless steel with a No. 2B mill finish before Electropolishing. Note that the etched boundaries between the grains are only partially sealed, resulting in a network of sub-surface crevices. Contaminants that lodge in these crevices are protected from contact with cleaning agents leading to subsequent migration of trapped contaminants onto the cleaned surface.

After Electropolishing

This photomicrograph represents the same No. 2B surface after Electropolishing. Note that the surface is now completely featureless on a microscopic level and has the desired noncontaminating, non-particulating and non-sticking properties.

Before Electropolishing

This photomicrograph represents a 304 stainless steel surface with a mechanically polished No. 4 mill finish before Electropolishing. Note the deep grooves, cavities, torn metal and other microscopic imperfections that entrap and retain contaminants.

After Electropolishing

This photomicrograph represents the same No. 4 finish after Electropolishing. The surface may still show some of the abrasiveproduced topography to the naked eye, but will now be microscopically featureless with the desired non-contaminating, non particulating and non-sticking properties.




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