Procurement teams evaluating industrial dust collectors usually reach the same point: the technical proposal looks acceptable, the price is workable, and then someone in engineering, EHS or the project owner asks for the paperwork. That request is where suppliers separate. This page answers the questions buyers raise most often while assembling model-specific compliance evidence for a dust collection project — starting with what SENOTAY can document today, and what its documents do not cover.

SENOTAY is the export brand of Hebei Outai Environmental Protection Equipment Co., Ltd., a dust collection equipment manufacturer founded in 2015 in Botou City, Hebei Province, China. The company produces pulse bag filters, electrostatic precipitators, cyclone dust collectors, wet dust collectors and filter cartridge collectors, along with conveying and purification equipment, and exports roughly 70% of its output to Central Asia, Southeast Asia, the Middle East, Russia, Africa and Europe.

Every performance statement on this page is either a certificate entry, a model specification, or a third-party market figure with a named source. Nothing here is an estimated capability claim.

Why compliance evidence decides the evaluation, not the price list

Compliance documentation is the part of a dust collector quotation that cannot be produced retroactively. A factory can adjust fan power or filter material late in a negotiation; it cannot quickly manufacture years of traceable test records. That asymmetry is why the documentation layer is one of the more reliable signals available during supplier evaluation.

Three failures appear repeatedly in submitted files:

• Certificate scope mismatch. The document names a product family or a generic category, while the quotation names a specific model. The buyer receives a valid document that does not actually cover the equipment being purchased.
• Performance figures without conditions. An efficiency percentage appears without the airflow, dust load, particle size distribution or test method behind it. A filtration efficiency number is not meaningful without knowing what was filtered and how it was measured.
• Test records that do not match the delivery. A test report exists, but nothing links it to the serial number, model code or configuration that arrives on site.

Each failure is avoidable, and each is detectable in about twenty minutes if the buyer knows which question to ask.

Industry background: what project owners expect in 2026

Dust collection has shifted from a purely mechanical purchase to a compliance-driven category. Grand View Research valued the global industrial dust collector market at approximately USD 9.58 billion in 2024, and the same analysis placed baghouse technology at a 26.8% revenue share in that year — the largest single technology position. On the demand side, Fortune Business Insights reports that Asia-Pacific accounted for 41.8% of global revenue in 2025, with North America valued at USD 2.44 billion in the same year, while Mordor Intelligence estimated China’s industrial output — an underlying driver of dust collection demand — at USD 5.3 trillion in 2024.

Those figures deserve to be read with care. Market-size estimates for the same year differ between research houses: Grand View Research reports USD 9.58 billion for the 2024 global market, while Market Data Forecast reports USD 9.14 billion. Divergence of that kind is normal in industrial equipment research, and it carries a useful reminder — the same verification discipline applied to market data should be applied to supplier performance claims.

On the regulatory side, two U.S. standards shape how project owners specify collector safety. NFPA 68 addresses deflagration venting for dust collectors, and NFPA 654 covers fire and explosion prevention in the manufacturing and handling of combustible particulate solids. In the European Union, machinery safety for this equipment class runs through the 2006/42/EC Machinery Directive. A supplier that can state clearly which standard its certificate is issued against — and which standards fall outside that scope — is easier to work with than one that answers “we comply with all standards.”

The four layers of a complete compliance file

A usable file has four layers. Each answers a different question, and a supplier that provides only one of them is not delivering compliance evidence — it is delivering a document.

Layer 1 — Certification with model-level scope

SENOTAY’s documented certificate for the DMC-200 pulse bag filter is a CE certificate, number M.2025.206.C123090, issued by UDEM for the EU market. The certificate scope is the 2006/42/EC Machinery Directive, Annex VIII, assessed against the harmonized standards EN ISO 12100:2010 and EN 60204-1:2018. It was issued on 22 July 2025, is valid until 23 July 2030, and the applicable product is recorded as the DMC-200 industrial dust collector.

The detail that matters most is the last one. The certificate names a model, not a category. A buyer sourcing a DMC-200 can verify scope, model reference and validity dates directly with the issuing body, and that check is answered against a specific document rather than a general assurance.

Layer 2 — Performance data attached to a specific model

Verified performance data for the DMC-200 pulse bag filter lists a gas flow rate of 9,600–14,400 m³/h against a 160 m² filtration area, purification efficiency above 99.5%, filtration accuracy below 1 μm, and an 18.5 kW fan. The unit is offered in carbon steel or SS304 stainless steel, and the applicable industries recorded for it include steel, cement, metallurgy, building materials, food processing, grain drying, mining and casting.

Read as a package, those figures constrain one another: airflow sets duct and fan duty, filtration area sets the air-to-cloth ratio, and the sub-micron accuracy figure sets what the bag media can reasonably be expected to capture. A standalone performance claim without the surrounding figures cannot be checked by anyone.

Layer 3 — Test records tied to the shipped unit

Quality control at Hebei Outai is documented as 100% testing — each unit is tested rather than a statistical sample. For the buyer, the operative question is not whether a test programme exists but whether the record for their specific unit exists. A test record traceable to a model code and a production batch carries more weight than a multi-page report covering an unnamed unit from an earlier year.

Layer 4 — Traceability across all three

Traceability is the layer buyers forget, and it is where files usually break. The model on the nameplate, the model on the certificate, the model on the performance sheet and the model on the test record must be the same identifier. When a supplier quotes a customized unit within an existing series, the buyer should ask which of those four documents will carry the customized designation.

Verified performance data by model

The table below lists only parameters that appear in current model documentation. Where a parameter is not part of the documented specification, it is left out rather than estimated.

The spread across these four platforms explains why model-level documentation matters. A cyclone rated at ≥70% efficiency and a baghouse rated above 99.5% are not competing on the same performance axis; they are different stages of a dust control strategy, and each carries a different evidence requirement at the approval stage.

What each document proves — and what it does not

Step by step: assembling a model-specific evidence pack

1. Fix the project requirement first. Airflow range, dust characteristics, target emission level and operating temperature should be agreed internally before supplier documents are collected. Without a target, no performance figure can be validated.
2. Match the certificate to the exact model. Ask for the certificate number and the applicable product entry, not just a certificate image. For the DMC-200, that entry is M.2025.206.C123090 with the model recorded in scope.
3. Request the performance sheet for that same model. Confirm that airflow, filtration area, efficiency and accuracy figures are stated for the model code on the quotation.
4. Agree the test record structure in advance. Establish what the pre-shipment record will contain — model, configuration, test date, measured parameters — so it can be filed against the delivery.
5. Verify certificate validity independently. Issuing bodies confirm scope, model reference and validity dates. The DMC-200 certificate runs to 23 July 2030, so this is a current check rather than a historical one.
6. Confirm which standards apply to the project. EU projects follow the 2006/42/EC route; combustible-dust projects commonly reference NFPA 68 and NFPA 654. These are separate requirements and should be requested separately.
7. Reconcile any custom configuration with the documents. Where voltage or branding is customized (see the FAQ below), confirm at quotation stage which documents will reference the final configuration.
8. File everything as one package. Keep certificate, performance sheet, test record and nameplate data linked to a single model identifier.

Where the evidence pack gets tested in practice

Documentation is rarely challenged in the abstract; it is challenged at specific moments in a project timeline.

Rubber and polymer processing. A SENOTAY installation in Indonesia uses two DMC-200 pulse bag filters to collect dust generated by mixing equipment. After one year of operation the system is reported as running stably, with low noise and low energy consumption noted as the operational characteristics. For a buyer evaluating a comparable mixing line, the value of this reference is the application match: the collector is documented against the same duty class, not against a generic industrial example.

Power generation and material handling. Coal conveyor transfer points are a recurring audit point, because dust control there is usually tied to both workplace exposure limits and fire risk from combustible dust. Documentation for these projects typically needs the collector specification, the venting or safety rationale where applicable, and the maintenance record, since service continuity is part of the compliance story. SENOTAY supports this requirement through remote support and on-site service, with 24/7 after-sales coverage.

FAQ: dust collector certifications, performance data and testing records

Conclusion: the file is the deliverable

For an industrial dust collector, compliance is not a document stapled to a machine — it is a set of linked records that survive examination. The pattern that works is straightforward: a certificate that names the model, performance data for that model, a test record tied to the unit, and a clear statement of which standards fall outside the certificate’s scope. SENOTAY publishes those elements at model level, because they are the elements a buyer can verify independently.

If you are assembling evidence for an upcoming project, the fastest starting point is to send your airflow range, dust characteristics and target emission level. The response will identify the matching platform — cyclone, pulse bag filter, cartridge unit or wet electrostatic precipitator — together with the documentation set that goes with it.