Terra Part # 6604-12
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• Refer to sales order and/or drawings for dimensions and other details

• Polypropylene panels are externally mounted to 2" (51 mm) powder-coated square steel uprights

• Includes powder-coated steel ceiling grid that forms 2' x 4' (610 mm x 1219 mm) bays for lights or blank panels (order ceiling modules separately)

• Includes steel wall grid for FFUs; order HEPA or ULPA fan/filter units and polypropylene grid panels separately

• Mirror-finish 304 SS control panel with all specified blower, light and other utility switches

• Request UL Listing Declaration (order separately) for cleanroom electrical system, which helps meet municipal and other permitting requirements that may apply

• HLF Cleanroom is suitable for facilities with reduced ceiling clearance

• Filter replacement is faster and easier due to accessibility; no ladder needed

• Since regulations vary considerably in different locations, Terra assumes no responsibility for meeting local building regulations, including fire and seismic codes. Check your local planning department to see what regulations apply to your installation.

• Specified height is from the floor to filter face. FFUs add 13” ( 330 mm) clearance to this measurement. To assure proper air flow and installation, allow an additional 11” (279 mm) between the FFUs and the wall or other obstruction (total of 24” ( 610 mm) between the cleanroom filter face and the surrounding facility).

• Other options include access doors, air conditioning, air locks and antechambers, air flow and pressure gauges, and furnishings

• Control Panel provides on/off switches for FFUs, lights and other system options, and includes Status Indicators (order separately, P/N 6600-23)

• Seismic analysis available; specify Part Number 6600-98. Changes required after approval, if any, are to be covered by change orders.

Overall Dimensions: Custom

Frame Material: Powder-Coated Steel

Dimensions, Shipping: 153" W x 65" D x 46" H

Weight, Shipping: 2,203 lb

Unit of Measure: EA

Hardwall Cleanrooms

  • Fire-Resistant Hardwall Modular Cleanroom Fire-Resistant Hardwall Cleanroom
  • Hardwall Modular Cleanroom Hardwall Modular Cleanroom
  • Hardwall Modular Cleanroom with Multiple Suites Multi-Suite Hardwall Modular Cleanroom
  • Modular Cleanroom Showing Air Conditioning and RH Control Ducting Modular Cleanroom with A/C and RH Control
Fire-Resistant Hardwall Modular Cleanroom
Hardwall Modular Cleanroom
Hardwall Modular Cleanroom with Multiple Suites
Modular Cleanroom Showing Air Conditioning and RH Control Ducting

Features and Benefits

Hardwall Cleanroom FAQs

Modular Hardwall Clean Room FAQs

What is a “hardwall” clean room?

Hardwall modular cleanrooms provide a completely enclosed, rigid free-standing structure with vents to exhaust air. Terra Universal fabricates the framing from powder-coated or stainless steel; wall panels are available in clear acrylic, static-dissipative PVC, polycarbonate and tempered glass, as well as opaque white polypropylene.

Because they can be specified, built and installed in a fraction of the time associated with brick-and-mortar clean rooms, modular hardwall rooms are ideal for fast ramp-up projects or short production cycles that may not merit the expense and delay of a conventional room.

Why should I choose a hardwall clean room over a softwall clean room?

Hardwall clean rooms can maintain pressure differentials, which may be required to meet certain standards for cleanliness (ISO 5 or 6, as well as USP compounding regulations). Their wall panels are more durable and easier to clean than softwall panels or curtains.

Hardwall construction also allows temperature and humidity control, which is enhanced in a recirculating clean room design using vertical air returns in conjunction with A/C units. Unlike softwall designs, hardwall cleanrooms can provide negative-pressure containment.

What modifications are required for a containment clean room application?

A negative-pressure containment room must pull more air out than it introduces through ceiling fan/filter units. Air is typically exhausted through ductwork tied to a ventilation fan.

Ductwork most often runs along the bottom perimeter of the clean room and draws air from multiple locations along the room perimeter to minimize disruption to laminar flow. The ventilation fan mounts on the floor outside the cleanroom, or ductwork may pass exhaust upward to a roof-mounted fan. In order to maintain negative pressure, this fan must be capable of pulling about 30% more air than the HEPA filters introduce.

Depending on the application, a containment room may require exit filtration: either HEPA/ULPA filters for particles and aerosols, and/or carbon filters to remove chemical fumes.

Can a hardwall clean room accommodate multiple production suites?

Internal walls and careful positioning of ceiling Fan/Filter Units (FFU) allows you to configure a facility with many rooms, each operating at a different ISO cleanliness level. Some points to keep in mind:

  • Clean room requirements typically specify a pressure differential between 0.025 – 0.05”WC between adjoining rooms of differing ISO classifications. Terra’s Smart Control Systems simplify this task by allowing FFU speed adjustment from a central control panel.
  • Certification of multi-room facilities often requires logging of pressure levels, which correlate to cleanliness and (in a containment application) environmental safety. Smart Controls are available with automated data logging that helps meet this requirement.
  • Smart Controls also provide automated end-of-shift set-back mode, which saves energy without compromising clean room integrity.
What other environment controls or protections can hardwall cleanrooms provide?

Beside controlling particulate contamination and internal positive or negative pressure, hardwall cleanrooms are available to meet these special requirements:

  • Static Control: select static-dissipative PVC panels for optimal protection against electro-static discharge. Ceiling-mount ionizing bars neutralize charges on workstations. Eliminating surface charge build-ups also removes “static cling” that attracts and holds airborne particles.
  • Temperature: in addition to module A/C units, Terra also provides insulated hardwall panels to enhance thermal stability. For improved thermal efficiency, select a double-wall BioSafe Clean Room.
  • Relative Humidity: Terra offer desiccant-based dehumidification modules as well as ultrasonic humidifiers.
  • Fire and Explosion Resistance: Call to discuss requirements for NEMA Class I, Division 1 explosion-proof FFUs, lights and wiring, available on any Terra clean room. Terra also provides fire-safe wall and ceiling panels that meet FM 4910 Clean Room Materials Flammability Test Protocol for flame spread, smoke contamination and resistance to corrosives.
  • Microbial Control: UV germicidal lights with an occupancy-sensor safety cut-off help maintain sterile conditions in bio/pharmaceutical clean rooms.
  • Vapor and Particle Removal: Reverse-flow FFUs capture particles generated in localized cleanroom spaces to minimize contamination. Vapor removal FFUs eliminate trace amounts of VOCs from make-up air to prevent chemical fume contamination.
  • Energy-Efficiency Compliance: Terra helps meet Title 24 and other energy-efficiency requirements through use of EC motors, LED lighting and other low-energy devices.
  • ADA Compliance: Call for information on ADA-compliant access ramps, doors and controls.

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Aluminum Frame Swing Door
    Light-weight, easy to install, and includes concealed pneumatic door closer.
  • Strip Shield Doors
    Strip Shield Doors provides access for areas that don't require strict airflow
  • Aluminum Frame Sliding Door
    This aluminum-frame door slides open along an extruded aluminum track to an opening of 36" (914 mm)
  • Germicidal UV Lamp Sanitizes Labs, Cleanrooms
    UV-C Germicidal Lamp installs on a cleanroom ceiling grid for line-of-sight room disinfection; safety occupancy sensor prevents personnel exposure.

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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