Laminar Flow Enclosure

Free Standing Enclosure Frames for Nexus^® Optical Tables
HEPA Filters and Enclosure Frame Create a Clean Environment
Laminar Flow from HEPA Filter Units

LFE1220-US

Wraparound Laminar Flow Enclosure

LFE1220W-US

Walkway Laminar Flow Enclosure

Related Items

Nexus^® Optical Tables

Laser Safety Curtains

Power and Energy Meters

Laser Safety Signs

Laser Safety Curtain Kits

Please Wait

Overview
Compatible Tables
Feedback

Click to Enlarge
Rendering of Wraparound Laminar Flow Enclosure with a Nexus Optical Table

Features

Free Standing Enclosure Frames
- Wrapround Version Encloses Table Surface
- Walkway Version Provides Space to Walk Around the Optical Table
Designed to Fit a 1.2 m x 2.0 m (4' x 6') Nexus^® Optical Table
HEPA Fan Filter Units (FFU) Create a Clean Environment
Air Quality Monitor (AQM) Continuously Monitors the Enclosure's Air Quality

Thorlabs' Laminar Flow Enclosures are designed to create a clean environment around 1.2 m x 2.0 m (4' x 6') Nexus optical tables by providing an enclosed air volume and filtration system to help minimize contamination. Two varieties of enclosures are available: a wraparound enclosure that minimizes both installation space and the enclosed volume, and a walkway enclosure with a larger perimeter that allows the user to walk around the optical table inside the enclosure. Both systems incorporate an enclosure frame; soft wall transparent curtain sides; an enclosed ceiling; top-mounted HEPA Fan Filter Units (FFU); and an Air Quality Monitor (AQM) that continuously monitors the quality of the air inside the enclosure. The enclosure frames do not touch the enclosed optical tables in order to avoid the transmission of vibrations from the frame to the table.

Laminar Flow Enclosures are
designed in our UK office.

Interested in Custom Capabilities?

Thorlabs is in the process of expanding our offering of Laminar Flow Systems and accessories. If you are interested in features that you don't see here, please contact us to discuss custom requests.

Each enclosure frame is composed of rails that are compatible with our 50 mm & 75 mm construction rail accessories, including T-nuts and screws, mounting brackets and feet, rail joiners, and channel inserts. An LED light strip on the interior of the structure helps illuminate the optical table. Additionally, the wraparound enclosure includes a curtain bar with brackets that can be attached to the front of the enclosure, which allows the transparent curtain walls to be moved out of the way when working inside the enclosure.

Please note that these enclosures require assembly, a manual process that requires four people to work on at least one of the assembly steps. Each fully assembled enclosure is designed to enclose a Nexus optical table. Tables are not included and must be purchased separately. To view a list of compatible Nexus optical tables, please see the Compatible Tables tab. For full assembly instructions, please view the manual by clicking on the red docs icon ( info icon ) below.

An LED light strip is included with the enclosures. If additional light is needed, the PSY240E LED light strip can be used. It is a 850 mm (33.46") long LED light strip that comes with a 4.3 m extension cord for compatibility with these enclosures.

Compatible Nexus Optical Tables
Item #	Dimensions	Mounting Holes	Additional Features
T46H	4' x 6' x 8.3"	1/4"-20	-
T46V	4' x 6' x 8.3"	1/4"-20	Sealed Holes
T46J	4' x 6' x 12.2"	1/4"-20	-
T46W	4' x 6' x 12.2"	1/4"-20	Sealed Holes
T46HH^a	4' x 6' x 8.3"	1/4"-20	Two Through Ports
T46K	4' x 6' x 18.1"	1/4"-20	-
T46X	4' x 6' x 18.1"	1/4"-20	Sealed Holes
T1220C	1.2 m x 2.0 m x 210 mm	M6 x 1.0	-
T1220P^b	1.2 m x 2.0 m x 210 mm	M6 x 1.0	Sealed Holes
T1220D	1.2 m x 2.0 m x 310 mm	M6 x 1.0	-
T1220CH	1.2 m x 2.0 m x 210 mm	M6 x 1.0	Two Through Ports
T1220E	1.2 m x 2.0 m x 460 mm	M6 x 1.0	-
T1220R	1.2 m x 2.0 m x 460 mm	M6 x 1.0	Sealed Holes
T1220Q	1.2 m x 2.0 m x 310 mm	M6 x 1.0	Sealed Holes

Also available bundled with 700 mm tall active isolator legs (Bundle Item # T46HK).
Also available bundled with 700 mm tall active isolator legs (Bundle Item # T1220CK).

Posted Comments:
No Comments Posted

Wraparound Laminar Flow Enclosures

Zoom

General Specifications
Maximum Additional Load^a,b		400 kg
Maximum Load per Construction Rail		100 kg
Total Weight of Enclosure		150 kg
Foot Height Adjustment		±11.5 mm
HEPA Filter Efficiency		99.95%
Internal Dimensions		1230 mm x 2100 mm x 1132.5 mm^c
Frame Dimensions^d		2.20 m x 1.33 m x 2.36 m
Crate Dimensions		2.29 m x 0.75 m x 0.79 m

To prevent the frame toppling, any attached load which acts outside the perimeter of the frame should not create a moment load >800 Nm about an axis between any two of the feet.
The maximum load per roof panel is a 40 kg distributed load.
Height is measured from the base of the soft wall transparent curtains.
300 mm clearance is needed above the HEPA filter.

Wraparound Design Encloses the Surface of a Table
Designed to Fit a 1.2 m x 2.0 m (4' x 6') Nexus Optical Table
HEPA Fan Filter Unit (FFU) Creates a Clean Environment
Air Quality Monitor (AQM) Continuously Monitors the Enclosure's Air Quality

The Laminar Flow Enclosures provide an enclosed air volume and filtration system to help minimize contamination for setups built on our Nexus optical tables. The system is enclosed by a frame; soft wall transparent curtain sides; a ceiling; and a top-mounted HEPA Fan Filter Unit (FFU). The enclosure frame does not touch the table in order to avoid the transmission of vibrations from the frame to the table. An Air Quality Monitor (AQM) is included and continuously monitors the quality of the air inside the enclosure. An LED light strip is also included with the enclosures. If additional light is needed, the PSY240E can be used (sold below).

The HEPA filter units shipped with the enclosures require a voltage of 115 V (-US enclosures) or 230 V (-EU and -UK enclosures). Please note that cables are not provided with the HEPA filter. Assembly and wiring of the filter should be carried out as per local regulations. For more information, please refer to the HEPA manual shipped with each enclosure.

Walkway Laminar Flow Enclosures

Zoom

General Specifications
Maximum Additional Load^a,b,c		300 kg
Maximum Load per Construction Rail		100 kg
Total Weight of Enclosure		270 kg
Foot Height Adjustment		-0, +10 mm
HEPA Filter Efficiency		99.95%
Internal Dimensions		2100 mm x 3140 mm x 1920 mm^d
Frame Dimensions^e		3.29 m x 2.25 m x 2.40 m
Crate Dimensions		3.25 m x 0.90 m x 0.85 m

To prevent the frame toppling, any attached load which acts outside the perimeter of the frame should not create a moment load >1600 Nm about an axis between any two of the feet.
Please do not put heavy objects on the roof panels.
Maximum load rating applies only when the frame is stationary and is resting on the rubber feet of the casters. When the rubber feet are raised and the frame rests on the caster wheels (i.e. when moving the frame), ensure that no additional loads are attached to the LFE frame.
Height is measured from the base of the soft wall transparent curtains.
300 mm clearance is needed above the HEPA filters.

Walkway Design Provides Space to Walk Around the Optical Table
Designed to Fit a 1.2 m x 2.0 m (4' x 6') Nexus Optical Table
Two HEPA Fan Filter Units (FFU) Create a Clean Environment
Air Quality Monitor (AQM) Continuously Monitors the Enclosure's Air Quality

The Walkway Laminar Flow Enclosures provide an enclosed air volume and filtration system to help minimize contamination for setups built around our Nexus optical tables. While these enclosures can be used with any table that fits inside, they are specifically designed to work with a 1.2 m x 2.0 m (4' x 6') Nexus Optical Table: the enclosure will encompass 625 mm and 525 mm of walkway space on the short and long sides, respectively, of a 1.2 m x 2.0 m table (see drawing to the lower left).

Click to Enlarge
Walkway Space Around a 1.2 m x 2.0 m
Optical Table Inside the Enclosure

The system is enclosed by a frame; soft wall transparent curtain sides; a ceiling; and two top-mounted HEPA Fan Filter Units (FFU). The enclosure frame does not touch the table in order to avoid the transmission of vibrations from the frame to the table. Castors are located at bottom of each leg of the enclosure and provide freedom of movement. Lowering the feet of the enclosure allows it to remain stationary. An Air Quality Monitor (AQM) is included and continuously monitors the quality of the air inside the enclosure. An LED light strip is also included with the enclosures. If additional light is needed, the PSY240E can be used (sold below).

LED Light Strip

Zoom

Specifications
Brightness	1530 Lumens
# of LEDs	51
Power^a	15.3 W
Voltage	12 VDC (Power Supply Included)
Dimensions	850 mm x 17.4 mm x 8.2 mm^b (33.46" x 0.69" x 0.32")

Power usage per LED is 0.3 W.
A 4.3 m extension cable is included.

850 mm (33.46") Long
4.3 m Extension Cable
Sturdy Aluminum Base Resists Warping
Frosted Plastic Cover Ensures Even Spread of Light
Shipped with 3 Spring Clips, 3 T-Nuts, 3 M6 Screws, 4.3 m Extension Cable, and a Power Supply

This rigid LED light strip is 850 mm (33.46") long, comes with a 4.3 m extension cable, and is held in place by three spring clips. If more light is needed in one of our laminar flow enclosures above, a PSY240E can be used in addition to the LED light strip included with the enclosures. It can also be used with racks or shelves, such as our Free-Standing Overhead Shelf or our Nexus Table Frame Overhead Shelves. The light strip can also be mounted over a bench for general laboratory use.