The LDMC is a high-efficiency, off-line pulse bag filter designed for large-volume, high-temperature dust collection in heavy industries like power, cement, steel, and chemicals. Its advanced low-pressure cleaning system ensures thorough dust removal and reliable, low-maintenance operation.
An LDMC bag dust collector which is also known as an LDMC pulse jet bag filter or long bag low-pressure pulse dust collector that is a high-capacity industrial dust filtration system that uses long filter bags and compressed air pulses to clean accumulated dust. Compared to traditional dust collectors, the LDMC series provides:
Lower energy consumption.
Higher filtration efficiency.
Longer bag life.
Lower maintenance frequency.
Greater adaptability to large air-volume dust collection.
It is specially designed to achieve stable emission standards then even in heavy-dust and continuous-duty operations.
Industries choose the LDMC pulse jet bag filter because it delivers performance advantages that many conventional systems cannot match:
Low-pressure pulse cleaning reduces compressed-air consumption.
Long filter bags maximize filtration area without requiring larger equipment.
Modular design simplifies transportation, installation, and maintenance.
High efficiency (up to 99.9%) ensures cleaner working conditions.
Adaptability to a variety of dust types, including fine, sticky, and high-temperature dust.
By optimizing airflow distribution and pulse cleaning, the LDMC series achieves longer service life, lower operating costs, and reliable performance for complex industrial applications.
Model | Filter Area (m²) | Air Volume (10⁴ m³/h) | Filter Bag Qty (pcs) | Solenoid Valves (pcs) | Leakage Rate (%) | Emission (mg/m³) |
LDMC-1920 | 1,920 | 9.6–11.52 | 640 | 40 | <3 | ≤50 |
LDMC-2400 | 2,400 | 11.52–13.82 | 800 | 50 | <3 | ≤50 |
LDMC-2880 | 2,880 | 13.82–16.59 | 960 | 60 | <3 | ≤50 |
LDMC-3840 | 3,840 | 18.43–22.12 | 1,280 | 80 | <3 | ≤50 |
LDMC-4800 | 4,800 | 23.04–27.65 | 1,600 | 100 | <3 | ≤50 |
LDMC-5760 | 5,760 | 27.65–33.18 | 1,920 | 120 | <3 | ≤50 |
LDMC-6720 | 6,720 | 32.26–38.71 | 2,240 | 140 | <3 | ≤50 |
LDMC-1920×2 | 3,840 | 18.43–22.12 | 1,280 | 80 | <3 | ≤50 |
LDMC-2400×2 | 4,800 | 23.04–27.65 | 1,600 | 100 | <3 | ≤50 |
LDMC-3840×2 | 7,680 | 36.86–44.24 | 2,560 | 160 | <3 | ≤50 |
Physical Dimensions | Performance Ratings | Material & Construction | Operational Data | Certifications & Lifecycle |
Airflow Capacity: 20,000–450,000 m³/h | Filtration Efficiency: ≥ 99.8% | Polyester / PPS / Aramid | : −3,000 to +1,000 Pa | 18–36 months |
Length: 3,200–21,500 mm | Emission Concentration: ≤ 20 mg/m³ (standard) | Galvanized Steel / SS304 | 0.35–0.6 MPa | ystem Service Life: 15–20 years |
Width: 2,600–8,600 mm | Emission Concentration: ≤ 10 mg/m³ | 130–160 mm | 1.2–6.0 m³/min | ≥ 1,500,000 cycles |
Height: 6,800–24,500 mm | Max Temperature: 150 °C (polyester bags) | 6,000–10,000 mm | 15–250 kW | ISO 9001 / CE / GB 16297 |
Inlet Flange Size: DN800–DN2600 | Max Temperature: 220–260 °C | Q235 / Q345 Steel | 6,500–85,000 kg | EU PM Emission Standards |
Outlet Flange Size: DN800–DN2600 | Air-to-Cloth Ratio: 0.8–1.6 m/min | 6–12 mm | ISO Standard | C3–C5 Industrial |
(BCD): 500–2,400 mm | Pressure Drop: 1,200–1,800 Pa | EPDM / Silicone | 80–180 Nm | IP54–IP65 Control Panel |
Total System Weight: 6.5–85 tons | Cleaning Method: Low-Pressure Reverse Pulse Jet | Diaphragm 1"–2" | 4–12 Reinforced Lugs | 4,000–6,000 h |
The LDMC Bag Dust Collector combines robust steel construction, premium non-woven filter media, and a patented low-pressure pulse jet cleaning mechanism. Each component is designed for optimal durability and performance under harsh industrial conditions.
Material & Properties
Component | Material Type | Mechanical Strength | Temperature Resistance | Key Performance Traits |
Filter Bags | High-grade non-woven fabric | High tensile | Up to 260°C | Excellent filtration efficiency |
Filter Cages | Galvanized steel / stainless steel | Sturdy, corrosion-resistant | 300°C+ | Prevents collapse, supports bag expansion |
Housing | Carbon steel | Reinforced structure | 250–300°C | Vibration-resistant and long life |
Pleated Elements | Fiberglass / PTFE (optional) | Moderate | 250°C | Optional for fine particle removal |
The LDMC system operates on a pulse jet cleaning principle, featuring an offline filtration mechanism that separates dust-laden air from clean air continuously:
Dust-laden air enters the system and passes through the filter bags.
Dust particles deposit on the outer surface of the filter media.
Clean air exits through the inner side of the bags and out the exhaust.
The offline pulse jet system activates high-pressure air bursts through solenoid valves (40–140 pcs depending on the model), cleaning one filter section at a time.
Dislodged dust falls into hoppers for easy removal or recycling.
This method allows continuous filtration without interrupting operations, maintaining consistent pressure and air quality.
Filter Bags: Primary dust separation units, capturing fine particulates from airflow.
Filter Bag Cages: Structural supports keeping the bags upright and free from collapse.
Pulse Jet Cleaning System: Integrated solenoid valves release short bursts of air to clean filters.
Air Chamber Compartment: Facilitates steady airflow and balanced pressure distribution.
Dust Hopper: Collects dislodged particulates for removal or disposal.
Control Panel & Sensors: Automate cleaning cycles based on pressure and dust load.
The LDMC pulse jet bag filter can be installed both indoor or outdoor, based on application needs:
Foundation preparation: Reinforced concrete base for stability.
Hoisting modules: Using cranes to position chambers and hoppers.
Connecting ducts: Align inlet/outlet ducts with main air systems.
Electrical setup: Integrate the pulse control panel and solenoid valves.
Testing and commissioning: Verify pressure drops, pulse timing, and air integrity before operation.
Q1. What is the filtration efficiency of the LDMC bag dust collector?
Answers: It provides >99.9% filtration efficiency, maintaining outlet dust concentrations below 50 mg/m³.
Q2. Can the LDMC dust collection system handle high-temperature air?
Answers: Yes, with filter materials resistant to 250–300°C, it performs effectively in high-temperature conditions.
Q3. What industries are ideal for LDMC installation?
Answers: Cement, steel, power generation, mining, and chemical processing.
Q4. What makes the Senotay LDMC superior to conventional bag filters?
Answers: The offline pulse cleaning system, larger filter area, and low operating pressure deliver better performance and longer service life.
Q5. Is the system customizable?
Answers: Yes. Senotay designs tailor-made LDMC units based on air volume, temperature, dust load, and installation space.
