Modular Wet Processing Stations

Standard Wet Bench, shown with optional Vertical Laminar Flow Hood

Economical turnkey solutions for a wide range of cleaning and processing requirements
Versatile deck configurations accommodate up to 7 sinks, rinsers, and other processing modules (deeper decks available for up to 14 modules)
Bi-directional exhaust system safely removes hazardous fumes

Fits beneath Terra's Vertical Laminar Flow station to allow HEPA-filtered processing and exhaust ventilation
Optional control modules isolate bath controls from the processing area
Custom engineered to meet specific application requirements!

Like Terra's Wet Processing Cabinets on the previous pages, these modular benches accommodate a complete line of baths, rinsers, cleaners, and other processing modules to suit your application.

All-polypropylene models are compatible with most acids and other process chemistries. 304 Stainless steel models are suitable for solvent cleaning. Both standard systems include a raised lip to contain spills and a sub-deck plenum with a 2"-diameter drain valve for safe collection of overflow chemicals. An optional plenum flush feature lets you wash this sink with water as it drains.

Versatile Configurations
Select from among three configurations (see illustrations below). The standard bench is designed for operation with Terra's Vertical Laminar Flow Station and features controls mounted at the rear of the processing area. The Vertical Laminar Flow Station provides a continuous flow of filtered air to the work area. It incorporates HEPA filters and operates at only 50dBA.

These benches accommodate a complete line of baths, rinsers, cleaners, and other processing modules to suit your application. All polypropylene models are compatible with most acids and other process chemistries. 304 Stainless steel models are suitable for solvent cleaning applications. Select among these standard configurations:

Standard Wet Bench
For use with Vertical Laminar Flow Hood

This economical design allows placement beneath a laminar flow hood, which provides a downward flow of HEPA-filtered air to prevent particulate contamination in the work area (see photo on next page). A 10"-diameter flange is provided on the rear of the station for connection to your in-house ventilation system. A 2.5" raised lip surrounds the work area to prevent floor spills, and perforations along the front lip safely drain spills into the full-length plenum sink located under the work surface. An optional plenum flush quickly empties the plenum through a drain valve.

Convenient front-panel valves control operation of nitrogen or auxiliary gas equipment, DI water, exhaust venting, and power. A storage area below the deck holds collection tanks or reserve chemicals.

In this configuration, process bath controls are mounted at the rear of the station, immediately above air-flow control baffles.

Standard Wet Bench

—with Overhead Control Case

As an alternative to a side control module, process bath controls are mounted inside an overhead control case. This configuration eliminates the need for operators to reach over baths in order to access controls. For additional safety, an optional vapor containment hood is installed over the work deck.

These modular, economical stations are configured to meet your processing requirements for bath layout, particle-free laminar flow, exhaust fume removal—even robotic transfer.

Standard Wet Bench —with Side Control Module

For use with Vertical Laminar Flow Hood

In many applications, safety dictates that process bath controls be isolated from the process baths. A side control module allows operators convenient access to all system controls without the need to reach over potentially hazardous process chemicals. The housing includes all electronics, and allows convenient service access from the right side of the unit.

Polypropylene Acid/Base Etching Bench

304 Stainless Steel Solvent Cleaning Bench

Adjustable baffles let you balance the bi-directional air flow at the work surface.

Fire-retardant polypropylene available!

Adjustable baffles on the wet processing station let you balance this flow of air between the front and the rear of the processing deck, as your application requires. Opening them completely ventilates fumes away from the operator; closing them increases the force of the filtered-air curtain at the front of the station.

Whatever your application, Terra engineers will work with yours to develop a deck configuration that's right for your process. Baths, rinsers, and other process modules can be arranged in a single or double row; see the following pages for more application information.

Standard systems include a reinforced bench of the specified size and material, a storage cabinet, and a 10"-diameter exhaust flange. Polypropylene leveling feet are included; specify optional 4"-diameter retractable casters for easier positioning. Convenient front-panel valves control operation of nitrogen or auxiliary gas equipment, DI water, exhaust venting, and power (order separately).

Specifications
Construction:	All stress-relieved white polypropylene (0.5" thick) or all 304 stainless steel. Standard plumbing is PVC (specify stainless steel or other desired material).
Exhaust:	Ducted through a standard 10"-diameter flange positioned at the rear of the bench (see airflow illustration). Specify other desired flange diameter or location.
Storage Cabinet:	35"D x 12"H x 44", 56", 68" or 92"W; dual sliding polypropylene doors
Drain:	2" NPT female, located at bottom of sub-deck plenum chamber
Power:	120VAC, 60Hz or 220VAC, 50Hz. Power outlets available for process equipment.
Controls:	Standard installation for process bath controls is at the rear of the wet station (select overhead or side control case as options).
Dimensions:	48", 60, 72" or 96"W x 36"D x 47"H (nominal)

Vertical Laminar Flow Station
Filter/Fan Unit:	FFU generates 650 CFM of air. Blower is rated for continuous duty; furnished with overload protection. Noise factor: 50 dBA. Filter type: 99.99% efficient HEPA. FFUs must be ordered separately 52"W Hood - (1) 48" x 24" FFU 64"W Hood - (1) 36" x 24" and (1) 24" x 24" FFU 76"W Hood - (1) 48"W x 24" and (1) 24" x 24" FFU 100"W Hood - (2) 48"W x 24" FFU
Illuminator:	Fluorescent, 100 foot candles. Does not disturb air flow.
Access Shields:	Side shields made of acrylic; Optional counterweighted front shield can be raised and lowered for operator safety and control of laminar air flow

Ordering Information
Specify the station of desired the size and material. Baths, sinks, faucets and other processing equipment are specified on the following pages. Additional charges may apply for special plumbing materials or third-party certification. Deeper decks are available for double rows of process baths. Call to discuss your requirements with a Terra process engineer.

Modular Wet Processing Station*
Overall Width	Work Area Dimensions	Polypropylene		304 Stainless Steel
(nominal)	W" x D"	Cat. #	$/Each	Cat. #	$/Each
48"	36 x 23	2000-16	Login	2001-04	Login
60"	48 x 23	2000-17	Login	2001-05	Login
72"	60 x 23	2000-18	Login	2001-06	Login
96"	84 x 23	2000-19	Login	2001-07	Login

* All models on this chart are designed for rear panel mounting of controllers (as shown in photo above).
Call for a quotation on models with head case panel mounts.

Vertical Laminar Flow Stations dimensions

Vertical Laminar Flow Stations for Wet Stations

304 Stainless Steel Vertical Laminar Flow Station for Wet Stations*								Plenum Flush
Dimensions (inches)			Requires 99.99% efficient HEPA filter(s)**	304 Stainless Steel				PVC with DI H₂O Nozzles
Dimensions (inches)			Requires 99.99% efficient HEPA filter(s)**	120VAC, 50/60Hz		220VAC, 50Hz		PVC with DI H₂O Nozzles
A	B	C x D	(order above)	Cat. #	$/Each	Cat. #	$/Each	Cat. #	$/Each
52	49	48 x 30	(1) 2' x 4'	2004-10	Login	2004-10-220	Login	2001-34	Login
64	61	60 x 30	(1) 2' x 2' + (1) 2' x 3'	2004-11	Login	2004-11-220	Login	2001-35	Login
76	73	72 x 30	(2) 2' x 3'	2004-12	Login	2004-12-220	Login	2001-36	Login
100	97	96 x 30	(2) 2' x 4'	2004-13	Login	2004-13-220	Login	2001-37	Login

*Rear panel is made of polypropylene.
** Order Filter/Fan Units with HEPA filters separately.

Powder Coated Steel Vertical Laminar Flow Station for Wet Stations*								Plenum Flush
Dimensions (inches)			Requires 99.99% efficient HEPA filter(s)**	Powder Coated Steel				PVC with DI H₂O Nozzles
Dimensions (inches)			Requires 99.99% efficient HEPA filter(s)**	120VAC, 50/60Hz		220VAC, 50Hz		PVC with DI H₂O Nozzles
A	B	C x D	(order above)	Cat. #	$/Each	Cat. #	$/Each	Cat. #	$/Each
52	49	48 x 30	(1) 2' x 4'	2004-20	Login	2004-20-220	Login	2001-34	Login
64	61	60 x 30	(1) 2' x 2' + (1) 2' x 3'	2004-21	Login	2004-21-220	Login	2001-35	Login
76	73	72 x 30	(2) 2' x 3'	2004-22	Login	2004-22-220	Login	2001-36	Login
100	97	96 x 30	(2) 2' x 4'	2004-23	Login	2004-23-220	Login	2001-37	Login

*Rear panel is made of polypropylene.
** Order Filter/Fan Units with HEPA filters separately

Options			Side Panel*		Sliding Shield
Dimensions of VLF (inches)			Static-Dissipative PVC		Static-Dissipative PVC
A	B	C x D	Cat. #	$/Each	Cat. #	$/Each
52	49	48 x 30	2004-03	Login	9207-04	Login
64	61	60 x 30	2004-03	Login	9207-05	Login
76	73	72 x 30	2004-03	Login	9207-06	Login
100	97	96 x 30	2004-03	Login	9207-07	Login

*Replaces standard Plexiglas side panels (each station requires two). Static-Dissipative PVC is recommended on units
equipped with optional dissipative sliding shield.

Filter Fan Units
Model	Avg. CFM CFM (m3/hr)	Power	With HEPA Filter		With ULPA Filter
			Cat. #	$/Each	Cat. #	$/Each
48" x 24"	644 (1095)	120VAC, 50/60Hz 220VAC, 50Hz	6701-99A	Login	6702-01A	Login
			6701-99A-220	Login	6702-01A-220	Login
36" x 24"	477 (811)	120VAC, 50/60Hz 220VAC, 50Hz	6702-08A	Login	6702-12A	Login
			6702-08A-220	Login	6702-12A-220	Login
24" x 24"	310 (527)	120VAC, 50/60Hz 220VAC, 50Hz	6702-10A	Login	6702-13A	Login
			6702-10A-220	Login	6702-13A-220	Login

Specifications
General Construction:	Fabricated of 1.5" x 3" 304 stainless steel members. FFUs encased in 304 stainless steel overhead housing. Base includes 1" 304 stainless steel leveling feet.
Rear Panel:	Polypropylene. Extends from hood to benchtop height (31" above floor) to optimize laminar flow.
Side Panels:	29"D x 32"H acrylic (static-dissipative PVC available)
Prefilters:	Washable polyurethane foam, located at top of FFUs
Final Filters:	99.99% efficient HEPA (rated @ 0.3µm particles)
Fan Motor:	Direct drive, forward curve, centrifugal-type with sealed bearings; rated for continuous duty; furnished with overload protection and a two-speed switch. Rated .25 HP @ low speed; .333 HP @ high speed (2' x 4' models)
Average airflow velocity:	90 (± 10) FPM (.45 m/sec) at low speed, measured 6" below filter face
FFU Air Flow:	650 (2' x 4'); 480 (2' x 3'); 360 (2' x 22') - all models rated @ 90 FPM under HEPA filter load
Sound level:	50 dBA, measured no more than 30" from filter face @ 90 FPM
Vibration level:	0.09 MILS
FFU housing:	0.63-inch thick aluminum with mill finish; includes integral air baffle system to ensure even air distribution. FFU fully encased in 304 stainless steel housing.
Lighting:
	Fluorescent, 100 foot-candles. Does not disturb the air flow.
Electrical:	110VAC, 50/60Hz or 220VAC, 50 Hz. Meets the requirements of the National Electrical Code and applicable local codes. All components UL listed and CE marked.
Performance:	Dust count exceeds Class 10 requirements.
Installation:	System is shipped as turnkey system; no installation required.