Application
Low-to-moderate dust volume
LW is intended for compact dust-collection applications with low-to-moderate dust volume.
Belfab LW
BELFAB
LW Open Modular Dust Collector
Belfab LW is a compact open modular dust collector built around expandable filter modules and a separately selected blower. Configurations span one to six filter modules with 36 to 215 sq. ft. of filtration surface, 100% polyester needle-felt filter bags, self-cleaning filtration, and Standard or Hummer blower selections from 1,500 to 5,000 CFM.
1–6 filter modules36–215 sq. ft. filter surface1,500–5,000 CFM published blower rows3–20 HP Standard10–20 HP Hummerunder 11 ft high
Modular filtration
Add filter modules to increase filtration surface without changing the LW product family.
Blower is a separate selection
Standard and Hummer blower rows have their own HP, CFM, suction, inlet, power and weight fields.
Installation remains engineered
Collector placement, ducting, dust-hazard controls and installation requirements are closed against the process, site and applicable codes.
expandable modules
polyester needle felt
36–215 sq. ft.
Standard / Hummer
3-phase blower rows
5 disposable bags / module
Start with the dust-collection problem
Build filtration area around the real dust load instead of treating CFM as the only selection variable.
LW combines expandable filter modules with a separately selected blower. Filter area and blower performance are related selection decisions, but they remain distinct specifications.
Filtration
Expandable filter surface
One through six modules increase filtration surface from 36 to 215 sq. ft.
Blower
Blower matched separately
Standard and Hummer blower selections carry their own airflow, suction, inlet, power and weight data.
Architecture
Push configuration only
LW is configured for push application.
Application fit
Compact, open modular dust collection with scalable filtration.
LW selection starts with the actual process, dust load, airflow requirement, system resistance, available space and disposal method.
Filtration
Scalable module bank
Choose from one through six filter modules with 36 to 215 sq. ft. of filtration surface.
Footprint
130-inch module height
Published one-through-six-module configurations remain 130 inches high while width increases with module count.
Blower route
Standard or Hummer
Match the blower family, horsepower, airflow and suction to the process basis.
Architecture
Push configuration
LW uses a push-application arrangement with the blower selected separately from the filter bank.
Disposal
Disposable-bag handling
Five disposable plastic bags are included per module, with steel drums available as an alternate accessory route.
Installation
Site-qualified system
Collector placement, ducting, dust-hazard controls and code requirements are closed around the actual installation.
Select LW from the process backwards
Dust source → required airflow basis → system resistance → filter area → blower → disposal.
Use the process requirements to establish airflow and resistance before choosing filter area, blower configuration and disposal.
Define the process
Machines, dust source, existing extraction requirements and simultaneous-use scenario.
Define airflow basis
Use process/machine requirements rather than selecting only by motor horsepower.
Define resistance basis
System static pressure is project-specific and must be established through qualified system design.
Select filter modules
Choose the one-to-six module filtration envelope appropriate to the application.
Close blower + disposal
Match blower row, electrical configuration and dust-disposal method.
How LW works
Push dust-laden air into the modular filter bank, separate particulate at the bags, then collect dust below.
LW uses self-cleaning bag filtration; service and cleaning procedures remain part of the supplied equipment documentation.
Air movement
1 — Blower
A selected Standard or Hummer blower provides the specified airflow and suction combination.
Architecture
2 — Push application
LW is configured for push application.
Filtration
3 — Filter bags
100% polyester needle-felt bags provide the filtration medium.
Disposal
4 — Dust disposal
Dust is collected beneath the filter modules using the supplied disposable bags or an alternate selected disposal accessory.
Filter-module data
LW one-through-six-module configurations.
Filter area, physical dimensions and filter-bank weight increase with module count; blower data remains a separate selection.
| Filter modules | Filtration surface | Filter type | Cleaning | Dimensions W × D × H | Module weight |
|---|---|---|---|---|---|
| 1 | 36 sq. ft. | 100% Polyester Needle Felt Bag | Self cleaning | 48 × 24 × 130 in. | 129 lb |
| 2 | 72 sq. ft. | 100% Polyester Needle Felt Bag | Self cleaning | 72 × 24 × 130 in. | 174 lb |
| 3 | 107 sq. ft. | 100% Polyester Needle Felt Bag | Self cleaning | 96 × 24 × 130 in. | 219 lb |
| 4 | 143 sq. ft. | 100% Polyester Needle Felt Bag | Self cleaning | 120 × 24 × 130 in. | 264 lb |
| 5 | 179 sq. ft. | 100% Polyester Needle Felt Bag | Self cleaning | 144 × 24 × 130 in. | 309 lb |
| 6 | 215 sq. ft. | 100% Polyester Needle Felt Bag | Self cleaning | 168 × 24 × 130 in. | 354 lb |
Hummer dimensional allowance: add 18 inches to both width and depth when a Hummer blower is selected. Blower weight remains separate from filter-bank weight.
Standard blower table
Six 3600 RPM Standard blower selections.
Each row pairs motor horsepower with its published airflow, suction, inlet, power and blower weight.
| Motor | Capacity | Suction | Inlet | Power | Blower weight |
|---|---|---|---|---|---|
| 3 HP | 1,500 CFM | 8.5 in. WC | 7 in. | 208-230-460/3/60 or 575/3/60 | 180 lb |
| 5 HP | 2,500 CFM | 7.5 in. WC | 9 in. | 208-230-460/3/60 or 575/3/60 | 200 lb |
| 7.5 HP | 3,000 CFM | 7 in. WC | 10 in. | 208-230-460/3/60 or 575/3/60 | 240 lb |
| 10 HP | 4,000 CFM | 7 in. WC | 12 in. | 208-230-460/3/60 or 575/3/60 | 250 lb |
| 15 HP | 5,000 CFM | 9 in. WC | 14 in. | 208-230-460/3/60 or 575/3/60 | 340 lb |
| 20 HP | 5,000 CFM | 11.5 in. WC | 16 in. | 208-230-460/3/60 or 575/3/60 | 360 lb |
Hummer blower table
1800 RPM blower selections for lower-noise applications.
Hummer selections are available in 10, 15 and 20 HP configurations and are described as operating under 84 dB.
1800 RPM
10 HP Hummer
4,000 CFM; 8 in. WC suction; 12 in. inlet; 350 lb blower weight.
1800 RPM
15 HP Hummer
5,000 CFM; 10 in. WC suction; 14 in. inlet; 450 lb blower weight.
1800 RPM
20 HP Hummer
5,000 CFM; 11.5 in. WC suction; 16 in. inlet; 560 lb blower weight.
All three Hummer selections use 208-230-460/3/60 or 575/3/60 power. A Hummer blower adds 18 inches to LW width and depth.
Airflow / static-pressure relationship
CFM, suction and filter area remain separate selection variables.
The blower table defines performance selections; the installed duct network and system resistance are closed from the actual process and layout.
Airflow
1,500–5,000 CFM
Published Standard and Hummer blower selections span 1,500 through 5,000 CFM.
Suction
7–11.5 in. WC
Suction varies by blower selection and remains tied to the exact row being evaluated.
Filtration
36–215 sq. ft.
Filter surface is determined by the one-through-six-module configuration, independently of blower horsepower.
Filter media
100% polyester needle felt with 99.9982% efficiency at 2.5 microns.
The efficiency value remains tied to its stated 2.5-micron particle-size condition.
LW uses 100% polyester needle-felt filter bags across the one-through-six-module configurations.
Needle-felt bag filtration.
LW uses 100% polyester needle-felt filter bags across the modular filter bank.
Published filter efficiency: 99.9982% at 2.5 microns.
Filter cleaning & service access
Self-cleaning bag filtration with modular service points.
Keep the filter bank accessible for inspection, bag service and dust-disposal work within the finished collector layout.
Filtration
Self cleaning
The LW filter-module data identifies the filtration system as self cleaning.
Service
Modular access
Module count and filter-bank layout define the service envelope around the collector.
Maintenance
Consumable planning
Track filter media and disposable-bag inventory as part of the collector maintenance record.
Dust disposal
Disposable bags are included; steel drums are an alternate accessory route.
LW includes five disposable plastic bags per module. Steel drums are available as an alternate dust-disposal accessory.
Standard consumables
Five disposable plastic bags per module
Five disposable plastic bags are included per filter module.
Accessory
Steel drum
Steel drums are available as an alternate dust-disposal accessory.
Service access
Plan disposal clearance
Leave practical access for bag or drum handling within the installed collector layout.
Options / accessories
Keep accessory status separate from the core LW module.
Filter bags form the core filtration medium; disposable bags are included consumables, while steel drums and magnetic starters are accessory selections.
Core configuration
Filter bag
Core filtration medium; the module table defines 100% polyester needle felt.
Included consumable
Disposable bags
Five plastic bags per module are included per module.
Accessory
Steel drum
Alternate dust-disposal accessory; selected to suit the disposal arrangement.
Accessory
Magnetic starter
A magnetic starter is available as an accessory; the supplied electrical package is matched to the project.
Installation / code context
Collector placement and dust-hazard controls are part of the finished system design.
Installation and operation must be coordinated with the applicable codes, local authority requirements and the actual dust/process hazard.
Compliance
Applicable codes
Confirm governing installation and operating requirements for the project location.
Process
Dust-hazard review
Use the actual material, dust characteristics and process information to define required protective measures.
Placement
Collector location
Indoor/outdoor placement, clearances, disposal access and service access are project-specific layout decisions.
System design
Duct / isolation interface
Ductwork, system resistance, air return or exhaust, and protective interfaces are closed as part of the engineered installation.
Installation / duct-interface planning
The blower inlet is an equipment interface—not the finished duct-system design.
Blower inlet diameters range from 7 to 16 inches by selection. The duct network, branches and system resistance are established from the actual machines and layout.
Layout
Collector placement
Close actual footprint, Hummer dimensional addition, disposal access and service access.
Interface
Blower inlet
Use the exact selected blower's 7–16 in. inlet as an equipment interface field.
Power
Electrical
Blower selections use 208-230-460/3/60 or 575/3/60 power. Final supplied voltage must match the project.
Engineering boundary
Duct system
The collector inlet is one interface point; qualified system design establishes branches, duct sizes and resistance.
Ownership / service planning
Filter access and dust disposal are designed around modular service points.
Keep module count, filter media, disposal arrangement and exact blower selection documented as one installed collector configuration.
Ownership
Filter records
Keep module count, filter media and supplied filter part information with the collector record.
Ownership
Disposal inventory
Track disposable-bag stock or the supplied alternate disposal arrangement.
Ownership
Blower record
Keep exact Standard/Hummer model, HP, inlet, voltage and blower weight separate from the filter bank.
Safety
Qualified service
Electrical, blower and filter-system service follows Belfab documentation and site safety procedures.
Application data package
Send the process—not just a target CFM.
Provide enough application data to close filter modules, blower selection, placement, disposal and electrical configuration around the actual process.
Process
Machines / process
Equipment served, manufacturer extraction requirements and simultaneous-use scenario.
Material
Dust information
Material, dust characteristics and any existing professional combustible-dust hazard data.
Integration
Layout
Floor plan, approximate duct route, collector location and disposal/service access.
Site
Utilities / configuration
Available electrical, indoor/outdoor constraints, disposal preference, noise goals and future expansion.
LW FAQ
Practical questions for LW selection and integration.
Use the exact process, module count, blower selection and site conditions to close the final configuration.
What is the Belfab LW?
A compact open modular dust collector with expandable filter modules and separately selected Standard or Hummer blower configurations.
How many filter modules are available?
One through six.
What is the filtration-surface range?
36 to 215 sq. ft., depending on one-through-six module configuration.
What filter media is published?
100% polyester needle-felt filter bags.
What filter efficiency is published?
LW is rated at 99.9982% at 2.5 microns.
How are the filters cleaned?
LW filter-module data identifies the system as self cleaning; service procedures follow the supplied equipment documentation.
What is the blower-capacity range?
Standard and Hummer selections span 1,500 to 5,000 CFM across Standard and Hummer selections.
What is the Standard blower range?
3 to 20 HP at 3600 RPM, with row-specific CFM, suction, inlet and weight values.
What is the Hummer blower range?
10, 15 and 20 HP at 1800 RPM. The Hummer is described as operating under 84 dB.
Does Hummer change the LW dimensions?
Yes. Add 18 inches to width and depth when equipped with a Hummer blower.
What dust-disposal equipment is included?
five disposable plastic bags are included per module. Steel drums are available as an alternate accessory.
Is LW automatically approved for indoor installation?
Installation must be coordinated with governing codes, regulations and local authority requirements.
Does the blower inlet determine the whole duct size?
No. The inlet is an equipment-interface field; the full duct system and resistance basis are project-specific.
LW application review
Match filter area and blower selection to the real process.
Send the machines served, dust/process information, known extraction requirements, current system and site constraints.