Downdraft Grinding Table Dual Stage Cartridge Pulse Jet Cleaning

Place of Origin: China
Brand Name: HUAQIN; Custom
Certification: ISO / RoHS / SGS
Model Number: GZT-20G
Minimum Order Quantity: 2
Price: Determined according to specifications and models
Packaging Details: wooden box
Delivery Time: 1. In‑stock items: Shipment within 2‑3 working days; 2. Custom‑made items: Subject to the degree of customization
Payment Terms: T/T
Supply Ability: Stable daily and monthly output, with support for OEM/ODM customization services.
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Specifications
Construction Material:
Powder Coated Carbon Steel / Stainless Steel
Product Type:
Dual Stage Cartridge Downdraft Grinding Table
Airflow Capacity:
2400–4000 M³/h; Custom
Motor Power:
2.2 KW / 3 KW; Custom
Filtration System:
Cartridge Dust Filtration With Pre Separation
Filter Cleaning Method:
Automatic Pulse Jet Cleaning
Product Description
Downdraft Grinding Table for Industrial Dust Collection
Product Overview

Our downdraft grinding table is designed to capture dust generated during grinding, deburring, sanding, and surface finishing directly at the work surface. Downward airflow draws suitable airborne particles through the work grid and into the dust collection system, helping reduce dust dispersion around the operator and workshop.

The dry cartridge design combines a pre-separation stage, where fitted, with cartridge filtration and automatic pulse-jet cleaning. Compressed-air pulses remove accumulated dust from the filter surface and allow it to fall into the collection drawer. This reduces reliance on disposable filter bags, although cartridges still require inspection and eventual replacement.

With typical airflow options of 2,400–4,000 m³/h and motor power options of 2.2 or 3 kW, the table can be configured for different workpiece sizes and dust loads. Carbon steel and stainless steel construction options may be available. Send us your workpiece dimensions, dust type, and operating conditions for a suitable model recommendation and quotation.

Cause: Why Grinding Dust Needs Source Capture

Grinding and deburring release fine particles that can spread beyond the workbench, settle on machinery, and increase housekeeping requirements. Poorly designed extraction can also leave dust suspended in the operator’s breathing zone. As dust loading increases, undersized filters or insufficient airflow may reduce capture performance and interrupt production for cleaning.

For industrial buyers, the challenge is not simply choosing a powerful motor. The table, filter area, airflow, duct resistance, and dust characteristics must work together. Combustible metal dust introduces additional fire and deflagration hazards that require a dedicated safety assessment.

Solution: Downdraft Extraction with Cartridge Filtration

The downdraft work surface pulls dust-laden air downward before particles disperse through the workshop. A pre-separation stage can reduce the load reaching the main filter where included in the selected design. Cartridge media then capture airborne particles, while pulse-jet cleaning helps maintain filter performance.

This industrial downdraft dust collection table is intended for suitable dry dust applications. It is not automatically suitable for every metal, composite, or combustible dust. Filter efficiency, airflow, and indoor air recirculation must be confirmed for the specific application.

Specifications
Parameter Typical Specification
Rated airflow 2,400–4,000 m³/h; Custom
Motor power 2.2 kW / 3 kW; Custom
Filter efficiency Up to ≥99.9% at 0.3 μm, subject to test verification
Cartridge quantity 1–2, depending on configuration
Filter area Approx. 16.5–37 m², depending on model
Noise level Approx. 70–75 dB(A), subject to test conditions
Work surface Powder-coated carbon steel or stainless steel options
Filter cleaning Automatic pulse-jet cleaning
Compressed air Approx. 0.4–0.6 MPa, subject to manufacturer confirmation
Power supply 380 V / 50 Hz standard; other options subject to confirmation

Specifications depend on model, filter media, and configuration. Confirm the rated airflow at the required operating pressure, dimensions, noise test conditions, and filter test data before ordering.

Application
  • Steel and stainless steel part grinding and deburring, subject to dust assessment

  • Sanding and surface preparation with compatible dry dust

  • Selected polishing and finishing processes

  • Composite or fiberglass processing with suitable filter media and exposure controls

  • Workshops needing localized dust extraction at a fixed workbench

Important safety limitation: Do not use a standard dry cartridge table for aluminum, magnesium, titanium, or other combustible metal dust without a specialist hazard assessment and an engineered collection solution. Some metal dusts can ignite or react dangerously with water, so neither dry nor wet collection should be selected without material-specific evaluation.

How It Works
  1. Source capture: Dust-laden air is drawn downward through the work grid.

  2. Pre-separation: Where fitted, a pre-separator reduces the amount of coarse material reaching the cartridge.

  3. Cartridge filtration: Filter media capture particles as air passes through the system.

  4. Pulse-jet cleaning: Compressed-air pulses dislodge accumulated dust when triggered by the controller.

  5. Dust collection: Released dust falls into a drawer or hopper for safe, regular removal. Filtered air is exhausted or recirculated only where the system design and local requirements permit.

How To Choose
  1. Identify the dust: Provide the material, particle characteristics, combustible-dust information, and process details.

  2. Match airflow to the work surface: Consider table dimensions, capture requirements, ductwork, and system pressure—not motor power alone.

  3. Check filter area and cleaning: Higher dust loading may require more filter area and a suitable cleaning arrangement.

  4. Confirm the air discharge method: Outdoor exhaust and indoor recirculation have different design and compliance requirements.

  5. Review maintenance access: Ensure operators can safely access the cartridge, collection drawer, and compressed-air system.

Contact us with your dust type, workpiece dimensions, required airflow, and power supply to request a technical recommendation and quotation.

FAQ

1. What is a downdraft grinding table used for?

It captures suitable dust from grinding, deburring, sanding, and finishing at the work surface to help reduce airborne dust dispersion.

2. What filtration efficiency can the table achieve?

The stated target is up to 99.9% at 0.3 μm, but the test method and whether this refers to filter media or complete equipment must be verified before purchase.

3. Can it be used for aluminum or magnesium grinding?

Do not use a standard dry cartridge table for these materials without a specialist hazard assessment and a verified engineered solution.

4. How often do the cartridges need replacement?

Service life depends on dust loading, operating hours, cleaning performance, and filter condition. Inspect the system regularly and replace cartridges when required by the manufacturer’s maintenance criteria.

5. Can filtered air be returned to the workshop?

Only if the complete system is designed for recirculation and the application meets applicable occupational health and local regulatory requirements. Confirm this before ordering.

6. What information is needed for a quotation?

Provide dust type, workpiece size, required airflow, operating hours, power supply, preferred material, and delivery country so the configuration can be assessed.

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