EHCDP HORIZONTAL CONFIGURATION
Horizontal Cartridge Arrangement
Horizontal cartridges provide side access for maintenance. Pulse cleaning and filter-media selection should be matched to the dust characteristics and loading.
Horizontal Cartridge Dust Collectors
EHCDP modular downflow dust collectors with horizontal side-insertion cartridges, automatic pulse-jet cleaning and 2-, 3-, 4- or 5-level module configurations.
- Horizontal cartridges with side access
- Automatic pulse-jet cleaning
- 2 / 3 / 4 / 5-level modular configurations
- Fan, discharge & HEPA options
Open/Open CartridgeØ352 × 660 mm typical size
Pulse-Jet CleaningAutomatic filter cleaning
Modular ConstructionEasy capacity expansion
OEM AvailableRAL color / private label options
01Configurations
Contents ↑Horizontal Cartridges. Modular Construction.
EHCDP combines horizontal side-insertion cartridges with bolted collector modules. Choose a 2-, 3-, 4- or 5-level configuration, then combine compatible modules to suit the required filter area and installation space.
01
Horizontal Cartridge Arrangement
Horizontally mounted cartridges are accessed from the service side. Allow sufficient side clearance for cartridge removal and routine maintenance.
02
Modular Units
Standard collector modules can operate individually or be combined to increase filtration area and airflow capacity for larger systems.
Dust-laden air passes through the horizontal cartridge section, where dust is captured on the outer filter surfaces. Cleaned air exits through the clean-air side. Reverse pulse cleaning releases the dust cake so it can fall into the dust collection section.
03Cartridge Sealing
Contents ↑SEALING DESIGN & MANUFACTURING PRECISION
Cartridge Sealing Reflects Manufacturing Accuracy
Both arrangements use two cartridges installed in series on the same support frame. The visible difference is how sealing pressure is achieved — and that difference is closely related to dimensional control, cartridge alignment, cover-plate fit and consistent gasket compression.
REFERENCE ARRANGEMENT
Additional Internal Center Nut Required
01Cover Plate + Gasket + Internal Center Nut
Two cartridges are installed in series on the same support frame. The cover plate, gasket, center rod and external three-lobe handle are all present, while an additional internal center nut is also used to provide cartridge clamping. During cartridge replacement, this internal nut must be removed and re-tightened before the cover is secured again.
7US STANDARD DESIGN
Precision Cover-Plate & Gasket Sealing
02No Internal Center Nut Required
Two open/open cartridges are installed in series on the same support frame. Precise cartridge positioning, support-frame alignment and controlled gasket compression allow the cover plate to provide the required sealing pressure without an internal center nut. The center rod remains in place for the external three-lobe handle that locks the cover plate, while routine cartridge replacement avoids the extra internal nut-removal and re-tightening operation.
Reliable sealing starts with manufacturing accuracy — not with adding more fasteners.
Both designs use two cartridges in series, but the 7US arrangement achieves sealing through precise cartridge positioning, support-frame alignment, cover-plate fit and controlled gasket compression, so no additional internal center nut is required. For experienced dust-collection professionals, the cartridge sealing structure is one visible indicator of manufacturing precision and assembly quality.
Both designs use two cartridges in series, but the 7US arrangement achieves sealing through precise cartridge positioning, support-frame alignment, cover-plate fit and controlled gasket compression, so no additional internal center nut is required. For experienced dust-collection professionals, the cartridge sealing structure is one visible indicator of manufacturing precision and assembly quality.
A segmented front appearance does not always mean a true modular cartridge dust collector. The real difference is at the connection interface: whether each section is fabricated as an independent structural module and then mechanically joined to the next module.
WHY MODULAR?
Control Welding Distortion Before Controlling the Whole Collector
ONE LARGE FULLY WELDED CABINET
Cumulative distortion becomes harder to control as the collector gets larger.
A very large continuous enclosure requires more welding across a longer structure. As weld length and heat input increase, shrinkage and dimensional drift can accumulate across the cabinet, making final alignment more difficult to control.
More weld length→More heat input→Harder cumulative control
→
7US INDEPENDENT MODULES
Each module is fully welded and dimensionally controlled before final assembly.
7US divides a large collector into repeatable structural modules. Each module is welded in dedicated fixtures, checked as an individual unit, and only then sealed and bolted to adjoining modules. This keeps welding distortion localized and helps reduce cumulative dimensional error across a large collector.
Fixture welding→Module inspection→Controlled final fit-up
Modular construction is therefore a manufacturing-control strategy, not only a transport or installation feature.
Smaller repeatable welding units are easier to fixture, inspect and keep dimensionally consistent before they are combined into a large collector.
REFERENCE CONSTRUCTION
Integrated Cabinet with Modular Appearance
Visual division does not necessarily create an independent structural module.
These layouts can create a modular-looking front face while the main enclosure remains largely continuous. A divider, reinforcement strip or repeated cartridge pattern does not by itself prove that two independently fabricated modules have been structurally joined.
Continuous or largely integrated cabinet body
Visual divider or reinforcement may create a segmented appearance
No clear independent module-to-module bolted interface
7US STANDARD CONSTRUCTION
True Bolted Modular Construction
Independent structural modules with real mating surfaces and mechanical fastening.
Each 7US module is fabricated as an independent structural unit with its own side plate. Before adjacent modules are bolted together, industrial structural sealant is applied continuously between the mating surfaces to create an air-tight interface. Bolts and nuts then provide the mechanical clamping force, forming a genuine sealed module-to-module structural joint.
Independent module side plates
Structural sealant applied between mating surfaces
Bolts and nuts provide mechanical clamping
Air-tight structural joint between modules
Sealed first, bolted second.
The visible joint is structural — not decorative.
A true modular collector must address both structural strength and air-tightness.
7US modules are manufactured separately. During assembly, structural sealant is applied to the mating surfaces first to seal the interface; bolts and nuts are then tightened to provide the mechanical connection and clamping force. The modular concept therefore continues from factory fabrication through transport and final assembly.
A complete manufacturing process matters, but the details that affect fit, sealing and repeatability are easier to judge from real production evidence. The photographs below show how 7US controls fabrication, positioning, assembly and module fit-up in actual production.
01Laser Cutting
02CNC Bending
03Fixture Welding
04Trial Assembly
05Surface Preparation
06Powder Coating
07Final Assembly
Proof of Precision
Instead of relying only on specification text, these details show the actual fixtures, measurements, components and assembled modules used in production.
01
Fixture-Controlled Fabrication
Critical geometry is held during welding and checked again during trial assembly.
What customers can verify: the cabinet is not assembled only by visual alignment. Fixtures and pre-assembly are used to control repeatability before finishing.
02
Measured Construction Details
Real production measurements, hardware and grounding details are shown directly.
Eye-level evidence, not marketing claims: material thickness, frame construction, fastening, static-grounding and positioning methods can be inspected directly from production photographs.
03
Installation-Ready Duct Interfaces
Removable inlet / outlet flange templates simplify matching ductwork fabrication.Removable collector flange template
→Use as
fabrication pattern
fabrication pattern
Matching duct flange — same opening & bolt pattern
DESIGNED FOR EASIER INSTALLATION
Remove the Template. Build the Matching Flange.
7US inlet and outlet connections can be supplied with removable flange template plates. The template reproduces the actual collector opening size and bolt-hole pattern, so the duct fabricator can use the removed plate directly as the reference for the mating duct flange. This avoids repeated site measurement, redrawing and bolt-hole guesswork.
Exact Opening Size
The duct flange follows the actual collector interface dimensions.
Exact Bolt Pattern
Bolt-hole positions can be transferred directly from the template.
Faster Field Fit-Up
Less measuring and fewer alignment surprises during duct connection.
A small manufacturing detail that can save significant installation time.
The same concept can be used at both inlet and outlet interfaces.
04
Independent Modular Construction
Upper and lower sections are fabricated separately, then assembled into one complete modular collector.
The modular structure is visible through the assembly sequence. Powder-coated parts are prepared first; the upper housing and lower housing sections are built as separate assemblies, then aligned and bolted together to form the complete collector.
05
From Factory Trial Assembly to Site Installation
The same modular concept continues through inspection, transport and final erection.
Manufacturing Quality Should Be Visible
The goal of this section is not to claim quality with adjectives. It is to show the fixtures, measurements, construction details, trial assembly and finished installation so experienced buyers can judge the manufacturing standard for themselves.
Full process capability: laser cutting, CNC bending, welding, surface preparation and powder coating remain part of the complete process — but the details above are where manufacturing discipline becomes visible.
06
EHCDP Model Selection
Contents ↑
HORIZONTAL CARTRIDGE ARRANGEMENT
How to Select an EHCDP Horizontal Collector
EHCDP modules are available with 2, 3, 4 or 5 filter levels. Select the filter media and required filtration area, then choose the module arrangement to fit the available height, width and maintenance access.
Shared modular platform: cartridge sealing, bolted module joints, removable duct-interface templates and manufacturing controls described in Chapters 03–05 also apply to EHCDP. Photographs in those chapters illustrate shared construction and manufacturing details; EHCDP product views are shown in Chapter 08.
CARTRIDGE ORIENTATION
Horizontal Side Insertion
Cartridges remain level and are accessed from the service side.
STANDARD CARTRIDGE
Ø352 × 660 mm
Typical outside cartridge size for the EHCDP family.
ADDITIONAL HEIGHT OPTION
2 / 3 / 4 / 5 Levels
The 5-level arrangement increases cartridge quantity without adding another module across the floor width.
CAPACITY EXPANSION
Modular Combination
Base modules can be combined side by side according to required filter area and site layout.
FINE FUME / LOWER PARTICULATE LOADING
Paper / Cellulose Media
≈20 m²per cartridge
Because paper / cellulose media can be pleated more densely within the same outside cartridge size, a larger effective filter area can be achieved in the same volume. The denser pleat arrangement, however, also increases airflow resistance, so the recommended design filtration velocity is lower than for polyester media. This configuration is well suited to welding fumes and similar fine-fume duties.
- Same outside size as the polyester option
- Larger effective filter area
- Can reduce module quantity for suitable fume duties
- Recommended design filtration velocity: generally ≤0.8 m/min
HIGHER PARTICULATE LOADING
Polyester Media
≈10 m²per cartridge
Wider pleat spacing is better suited to grinding dust and higher particulate loading, where dense pleats can make pulse-cleaning and dust shedding more difficult.
- Same outside size as the paper / cellulose option
- More open pleat spacing for particulate release
- Preferred for grinding and higher dust-loading duties
- Recommended design filtration velocity: generally ≤1.1 m/min
EHCDP Standard Module Selection
The model code identifies the filter levels and total cartridge quantity. Final airflow is confirmed from filter media, total effective filter area and the design filtration velocity for the actual dust — not from cartridge quantity alone.
| Model | Filter Levels | Cartridges | Cartridge Size | Paper / Cellulose Area* | Polyester Area* | Arrangement |
|---|---|---|---|---|---|---|
| EHCDP2-4 | 2 | 4 | Ø352 × 660 mm | ≈ 80 m² | ≈ 40 m² | Compact-width module |
| EHCDP2-8 | 2 | 8 | Ø352 × 660 mm | ≈ 160 m² | ≈ 80 m² | Standard-width module |
| EHCDP3-6 | 3 | 6 | Ø352 × 660 mm | ≈ 120 m² | ≈ 60 m² | Compact-width module |
| EHCDP3-12 | 3 | 12 | Ø352 × 660 mm | ≈ 240 m² | ≈ 120 m² | Standard-width module |
| EHCDP3-18 | 3 | 18 | Ø352 × 660 mm | ≈ 360 m² | ≈ 180 m² | Extended-width module |
| EHCDP4-16 | 4 | 16 | Ø352 × 660 mm | ≈ 320 m² | ≈ 160 m² | Standard-width module |
| EHCDP4-24 | 4 | 24 | Ø352 × 660 mm | ≈ 480 m² | ≈ 240 m² | Extended-width module |
| EHCDP5-20 5 Level | 5 | 20 | Ø352 × 660 mm | ≈ 400 m² | ≈ 200 m² | Standard-width / taller module |
| EHCDP5-30 5 Level | 5 | 30 | Ø352 × 660 mm | ≈ 600 m² | ≈ 300 m² | Extended-width / taller module |
SELECTION PRINCIPLE
Airflow = Total Filter Area × Design Filtration Velocity × 60
A model number describes the module geometry. The acceptable airflow depends on dust loading, filter media and the design filtration velocity selected for the application.
TYPICAL AREA FOR PRELIMINARY SELECTION
Cartridges with the same outside dimensions can have different effective filtration areas because the pleat construction is different.
≈20 m² / cartridgePaper / cellulose media
≈10 m² / cartridgePolyester media
Example: EHCDP3-12 Modular Scaling
One 3-level base module can be repeated horizontally. The same modular principle also applies to compatible 2-, 4- and 5-level families.
EHCDP3-121 module · 12 cartridges
EHCDP3-242 modules · 24 cartridges
EHCDP3-363 modules · 36 cartridges
EHCDP3-484 modules · 48 cartridges
EHCDP3-605 modules · 60 cartridges
* Filter areas use approximately 20 m² per paper / cellulose cartridge and 10 m² per polyester cartridge for preliminary selection. Final cartridge construction, media specification, dimensions and project airflow are confirmed before order.
The downflow cartridge dust collector body can be configured around the actual dust load, discharge method, electrical standard, safety requirements and final filtration target. The options below can be selected individually or combined as part of a project-specific system configuration.
Filter Media Options
Select the basic media first, then add surface or safety functions according to the dust.
- Cellulose / paper filter cartridges
- Polyester filter cartridges
- PTFE membrane optional
- Flame-retardant option
- Antistatic option
Collector Material & Structural Customization
The collector body can be manufactured in different materials and structural specifications to suit corrosion conditions, process requirements and customer standards.
- Q235 carbon steel
- SS304 stainless steel
- SS316L stainless steel
- Customer-specified coating color
- Plate thickness can be customized for special service conditions
- Reinforcement and structural strengthening can be customized as required
Independent or Boat-Type Hopper
Independent Hopper
- Low-profile hopper for lower dust loading
- High-capacity hopper for higher dust loading
Boat-Type Hopper
- One common large hopper can serve multiple collector modules
Discharge Valve & Screw Conveyor
- Manual slide gate
- Manual butterfly valve
- Motorized rotary airlock valve
- Screw conveyor available for multi-module collectors
Pulse-Jet Cleaning System
- Pneumatic pilot-operated valves + centralized solenoid valve box
- Integrated solenoid-operated pulse valves
- Pulse interval and duration adjustable by pulse controller or PLC
- Valve and control component brands can be specified
Fan, Motor & Control Cabinet
Fan / Motor
- Fan brand and motor brand can be specified
- Voltage and 50 / 60 Hz frequency configured for the destination
Electrical Control
- Electrical component brand can be specified
- PLC optional
- HMI / touchscreen optional
- VFD optional
Explosion Protection, Safety & Maintenance
- Explosion vent panel
- Flameless explosion venting device
- Explosion-proof motor
- Explosion-proof electrical cabinet
- Spark arrestor / spark trap
- Maintenance platform available as required
INTEGRATED TWO-STAGE FILTRATION
Integrated Cartridge + HEPA Dust Collector Module
7US can integrate primary cartridge filtration and secondary HEPA filtration into one modular collector body. The cartridge section and HEPA section are arranged vertically within the same structural module, creating a compact two-stage filtration unit rather than two separate machines connected by ductwork.
Cartridge + HEPA in One Cabinet
Vertically Integrated Two-Stage Filtration
No Separate HEPA Unit Required
One integrated module, engineered as one filtration system.
The integrated arrangement reduces external duct connections and installation space.
HEPA filter area, final pressure drop and fan selection are engineered together with the primary cartridge stage
to maintain the required system airflow and final filtration performance.
Explosion-protection items are configurable components for project requirements.
Final compliance scope and component certification should be confirmed for the destination market and application.
08
Applications & Delivery
Contents ↑
APPLICATION RANGE & PROJECT DELIVERY
Typical Applications & Product Views
Industrial cartridge dust collectors can be configured for a wide range of dry-dust and fume applications. Application suitability is determined by the actual dust characteristics, loading, filtration media, airflow and safety requirements — not by equipment appearance alone.
Common Industrial Dust & Fume Duties
EHCDP modular collectors can be engineered for different process conditions after the dust source and operating requirements are confirmed.
From Factory Preparation to Site Assembly
Large collectors are prepared as modular equipment for inspection, transport and practical field assembly. Site installation is normally completed by the customer or local contractor with drawings and technical guidance from 7US.
01
Factory Trial Assembly
Fit and interfaces checked before shipment.
02
Modular Packing
Sections prepared for practical transport.
03
Shipment
Module dimensions coordinated with logistics.
04
Assembly Guidance
Drawings and remote technical support available.
EHCDP Product Views
Front and rear views of the EHCDP horizontal-cartridge modular collector show the service side and rear-side structure of the same equipment.
More application references and project photographs are available on request.
09
Project Inquiry
Contents ↑
PROJECT CONFIGURATION
Configure Your EHCDP System
The collector body can be supplied separately, or configured with a fan and controls for the confirmed airflow, system pressure and power supply.
Equipment Supply
Material, coating color, discharge arrangement and HEPA options can be selected for the project. See the system options above for available configurations.
Drawings & Assembly Support
Detailed GA / DWG project drawings can be prepared after the configuration, interfaces and order requirements are confirmed. Site assembly is carried out by the customer or local contractor with drawings and remote technical guidance from 7US.
Preparing the public shell…