4X8 Downdraft Table - Diversitech

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DD 4′ x 8′ Downdraft Table

Durable and dependable, the DD 4′ X 8′ Downdraft Table is built to withstand the most demanding applications. Its 4′ deep by 8′ wide, ventilated, dual-sided work surface collects airborne toxins right at source. Shop air remains uncompromised.

Equipped with a multi-stage spark arrestance baffle for fire prevention and dual 10” exhaust silencers for noise reduction, you can build-to-order the DD 4′ X 8′ in almost any configuration. Its automatic reverse-pulse filter cleaning system reduces overall maintenance requirements.

Whether you weld, grind, debur, cut, sand, finish, solder, paint or mix, the DD 4′ X 8′ Downdraft Table provides the perfect, flexible, all-in-one solution.

Recommended Applications

Ideal for welding.
Ideal for grinding.
Ideal for deburring.
Ideal for soldering.
ideal for plasma cutting
ideal for painting

Overview

Benefits

Hands-free, capture-at-source
Low maintenance, automatic self-cleaning system included
Compliant with OSHA guidelines for safe capture of dust, smoke and weld fumes

Features

Flexible, Dual-sided 48” x 96” Worksurface
High Capture Face Velocity (300 FPM)
Multi-stage Spark Arrestance Baffling
Automatic Reverse Pulse Self-cleaning System
Dual 10” Exhaust Silencers
Dust Drawer for easy servicing

Options

3” Swivel Casters, set of eight
Blue Cushion Grid Matting (48” X 96”)
Minihelic Gauge
Dual-HEPA Afterfilter (with frame)

Models and Options

The DD 4′ X 8′ Downdraft Table standard base model comes equipped with a 230V, 10 HP motor and four (4) Nanotech MERV 15 filters, but the following options are also available upon request:

STANDARD / 10 HP – 575V

Up to 6300 CFM

Standard Model
380 FPM
Motor: 10 HP / 575/3/60Hz
Filter Type: Nanotech
Product Number: DD-3X8-100N5

WGD / 10 HP – 230V

Up to 6300 CFM

Welding, Grinding & Deburring Kit
380 FPM
Motor: 10 HP / 230/3/60Hz
Filter Type: Nanotech
Product Number: DD-3X8-100N2-WGD

WGD / 10 HP – 460V

Welding, Grinding & Deburring Kit
380 FPM
Motor: 10 HP / 460/3/60Hz
Filter Type: Nanotech
Product Number: DD-3X8-100N4-WGD

WGD / 10 HP – 575V

Up to 6300 CFM

Welding, Grinding & Deburring Kit
380 FPM
Motor: 10 HP / 575/3/60Hz
Filter Type: Nanotech
Product Number: DD-3X8-100N5-WGD

SPR / 10 HP – 230V

Up to 6300 CFM

Spray Painting Kit
380 FPM
Motor: 10 HP / 230/3/60Hz
Filter Type: Polytech
Product Number: DD-3X8-100S2-SPR

SPR / 10 HP – 460V

Up to 6300 CFM

Spray Painting Kit
380 FPM
Motor: 10 HP / 460/3/60Hz
Filter Type: Polytech
Product Number: DD-3X8-100S4-SPR

SPR / 10 HP – 575V

Up to 6300 CFM

Spray Painting Kit
380 FPM
Motor: 10 HP / 575/3/60Hz
Filter Type: Polytech
Product Number: DD-3X8-100S5-SPR

PLA / 10 HP – 230V

Up to 6300 CFM

Plasma Cutting Kit
380 FPM
Motor: 10 HP / 230/3/60Hz
Filter Type: Nanotech
Product Number: DD-3X8-100N2-PLA

PLA / 10 HP – 460V

Up to 6300 CFM

Plasma Cutting Kit
380 FPM
Motor: 10 HP / 460/3/60Hz
Filter Type: Nanotech
Product Number: DD-3X8-100N4-PLA

PLA / 10 HP – 575V

Up to 6300 CFM

Plasma Cutting Kit
380 FPM
Motor: 10 HP / 575/3/60Hz
Filter Type: Nanotech
Product Number: DD-3X8-100N5-PLA

Technical Specifications

Model (Product Number)	Motor (H.P.)	Air Flow (CFM)	Volts/Phase/Hz	Amps	Net Weight¹	Width¹	Height¹	Length¹	Noise (dB)	Filter Type	Filter Area (sq. ft) Filter Efficiency
DD-4×8-100N2	10	6300	230/3/60Hz	28	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100N4	10	6300	460/3/60Hz	14	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100N5	10	6300	575/3/60Hz	11	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100N2-WGD	10	6300	230/3/60Hz	28	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100N4-WGD	10	6300	460/3/60Hz	14	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100N5-WGD	10	6300	575/3/60Hz	11	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100S2-SPR	10	6300	230/3/60Hz	28	396.89	111	68.5	49	83dB@ 5 ft.	Polytech	4 x 55 SQ.FT. / MERV 15
DD-4×8-100S4-SPR	10	6300	460/3/60Hz	14	396.89	111	68.5	49	83dB@ 5 ft.	Polytech	4 x 55 SQ.FT. / MERV 15
DD-4×8-100S5-SPR	10	6300	575/3/60Hz	11	396.89	111	68.5	49	83dB@ 5 ft.	Polytech	4 x 55 SQ.FT. / MERV 15
DD-4×8-100N2-PLA	10	6300	230/3/60Hz	28	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100N4-PLA	10	6300	460/3/60Hz	14	396.89	111	68.5	49	83dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15
DD-4×8-100N5-PLA	10	6300	575/3/60Hz	11	396.89	111	68.5	49	85dB@ 5 ft.	Nanotech	4 x 139 SQ.FT. / MERV 15

1 – Product weight and dimensions are based on base-models and may vary depending on selected product features. Please contact us for an accurate shipping quote.

Learn how to get the most out of your DD 4′ X 8′ Downdraft Table and troubleshoot common problems.
See our help topics and support videos below, and download the DD 4′ X 8′ Downdraft Table product guide and owner’s manual.

How to..

+ Set up your DD 4' X 8' Downdraft Table for the first time

Before You Begin

Designate a location near the operator where the unit will be placed that is sufficiently close to a grounded power source.

Unpacking Unit

Inspect carton for any possible damage during transit.
Remove packing material.
Do not tip or invert while handling.
You’ll find the item serial number, model and electrical ratings located on the nameplate. Write down this information on the provided Maintenance Record found in your owner’s manual or your own designated preventative maintenance system.

Installation

The Electrical Connection for Units That Require a 3-phase (230/460/575V) Direct Connection:
1. For wiring instructions, please refer to APPENDIX 1: Electrical Diagram found in your owner’s manual.
2. A certified electrician is required to install the electrical connection according to local regulations.
3. All three power leads must be connected to L1, L2 and L3 on the contactor.
4. Ensure unit is grounded for safe operation.
5. If, after starting the unit, you find that the downdraft table fails to perform well or makes excessive noise, the motor is likely running in the reverse direction. Reverse lead L1 and L3 to correct motor rotation.
6. The correct direction of the blower wheel rotation is clockwise.
For Downdraft Tables That Require Compressed Air
1. Supply 80-90 PSI of clean, dry compressed air to the bulkhead located on the side of the unit.
2. The downdraft table’s air tank only allows for a maximum of 90 PSI. Do not supply air pressure greater than 90 PSI without a properly installed pressure regulator.
3. Inspect to see if there is moisture in airline as it can damage the filters. Use an air dryer if necessary.
Side and Back Walls Installation
1. Prepare Hardware
  1. Find the bolt holes located on the side and back of the cabinet.
  2. Loosely attach bolts, lock washers and washers, leaving sufficient space to fit wall between the cabinet and washers.
2. Attach Walls
  1. Put in place one back wall and one side wall. Make sure that the flange faces outwards between the cabinet and the washers.
  2. Rest the wall edge on the bolts, checking for alignment of bolt holes.
3. Fasten Hardware
  1. Fasten bolt, lock washer, washer and net on the vertical edge- attaching one side wall to one back wall.
  2. Repeat the process to secure all walls.
  3. Confirm all hardware is tight, securing side and back walls to the cabinet.

+ Perform Function Test Prior To Use

Before you use your unit, you’ll want to perform a function test to verify it’s in working order. Do the following:

Turn the power switch to On.
Look to confirm that the unit is level and stable. You’ll also want to verify that nothing is obstructing the extraction path.
Listen closely to the motor and suction sound of unit. Are they within the expected noise limits? Is it louder or softer than expected?
By placing your hand on top of the unit, feel for any unexpected vibration. Place your hand in front of the intake surface to confirm the expected levels of suction.

+ Replace your Filters

Your Downdraft Table comes equipped with a reverse pulse cleaning system that extends the life expectancy of your filter. The usable filter life will vary according to the application used, the particle size, density, humidity and oil. Generally, however, you can expect to change your filters every 6-18 months, if unit is pulsed on a regular basis.

Visual inspection of the filter is required as part of routine maintenance. Replace the filter if you find:

Accumulation or overloading of particles
Rips, tears or warping of material
You find that the table is not working properly due to excessive static build-up

If any of the above conditions apply, follow the below 8-step procedure to replace your filter:

Open cabinet door.
Unhook the barrel bolt latch that keeps your filter in place.
Slide used filter cartridge(s) out.
Inspect the cabinet interior for debris.
Open dust drawer and remove any material before replacing back into position.
Insert clean replacement filter(s).
Hook barrel bolt latch to keep filter(s) in place.
Close cabinet door.

Troubleshooting

+ My Downdraft Table Does Not Turn On

Confirm that the correct voltage and 3 phase power is properly supplied into the panel.
Check fuses to see if they are functional.
If your Downdraft Table does not turn on, it is possible that the unit is in reverse phasing. An electrician is required to reposition phase lines.
Confirm the correct rotation using the indication arrow located on the motor. If the unit fails to turn on, the unit’s motor could be in reverse rotation and spinning incorrectly. An electrician is required to address the problem.

+ My Downdraft Table Does Not Pulse Air

Confirm correct voltage. Make sure that the transformer (Primary and Secondary) has been plugged into the correct voltage.
Confirm that the unit is being supplied adequate compressed air (90 max psi).
If the problem continues, contact Diversitech support for assistance.

+ The Light Kit Does Not Work

Confirm 120v for the secondary transformer. Make sure that the transformer (Primary and Secondary) has been plugged into 120v power outlet.
Inspect the on\off switch to ensure connection.
If the problem continues, contact Diversitech support for assistance.

Guides

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Videos

A Closer Look at DD 4' x 8' Downdraft Table

Get an in-depth look at DD 4′ x 8′ Downdraft Table and explore its key features in action.
This video showcases how it works, its standout benefits, and why it’s the perfect choice for you. Watch now and experience the innovation firsthand!

Slides

Swipe Through the Details of DD 4' x 8' Downdraft Table

Get an in-depth look at DD 4′ x 8′ Downdraft Table and explore its key features in action. This video showcases how it works, its standout benefits, and why it’s the perfect choice for you. Watch now and experience the innovation firsthand!

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DD 4′ x 8′ Downdraft Table

Recommended Applications

Overview

Benefits

Features

Options

Models and Options

STANDARD / 10 HP – 575V

WGD / 10 HP – 230V

WGD / 10 HP – 460V

WGD / 10 HP – 575V

SPR / 10 HP – 230V

SPR / 10 HP – 460V

SPR / 10 HP – 575V

PLA / 10 HP – 230V

PLA / 10 HP – 460V

PLA / 10 HP – 575V

Technical Specifications

How to..

+ Set up your DD 4' X 8' Downdraft Table for the first time

Before You Begin

Unpacking Unit

Installation

+ Perform Function Test Prior To Use

+ Replace your Filters

Troubleshooting

+ My Downdraft Table Does Not Turn On

+ My Downdraft Table Does Not Pulse Air

+ The Light Kit Does Not Work

Guides

Videos

A Closer Look at DD 4' x 8' Downdraft Table

Slides

Swipe Through the Details of DD 4' x 8' Downdraft Table

Request A Quote