FAQ's

Yes. We offer complete customized industrial ventilation solutions, including:

• Airflow and pressure calculation

• Model selection and impeller optimization

• Material customization (carbon steel, stainless steel, anti-corrosion coatings, high-temperature materials)

• Energy-saving system design and on-site application matching

Our engineering team evaluates your working condition, temperature, dust level, altitude, voltage, and system layout to provide the best efficiency and longest service life.

Customization is one of our core strengths.

Our products comply with ISO9001 Quality Management, and can be supplied with:

• CE certification for EU markets

• SASO / SABER for Saudi Arabia

• EAC for Russia & Central Asia

• Energy efficiency and performance testing reports

• Material and balancing certificates

We can also support third-party inspection (SGS, BV, TUV) upon request.

We support EXW, FOB, CIF, DDU, and DDP terms depending on your region.
Regular models usually ship within 7–15 days.
Customized models typically require 15–30 days, depending on specification and quantity.

We work with experienced global freight forwarders to ensure safe and timely delivery.

Yes. We provide:

• Online remote installation guidance

• On-site commissioning by senior engineers (optional)

• Long-term technical support and spare parts supply

Our engineering team has participated in more than 300+ overseas industrial ventilation projects, ensuring smooth system startup and stable operation.

You can send us:

• Required airflow (m³/h)

• Static pressure (Pa)

• Application industry / working condition

• Voltage & frequency

• Any space / noise / energy efficiency requirements

Or simply share your working condition, and our engineers will recommend the most suitable model.

All blower impellers undergo dynamic balancing tests (G2.5 / G6.3), and all bearings are selected from SKF / NSK or equivalent trusted brands.
For high-temperature, high-dust, or corrosive environments, we provide reinforced shafts, wear-resistant lining, and anti-corrosion coatings to ensure long-term stable operation.

Yes. We can provide:

• Heat-resistant designs up to 280–450°C

• Anti-corrosion coatings such as epoxy, PTFE, or polyurethane

• Stainless steel / alloy materials for extreme environments

Our engineers will select the material based on your gas composition, temperature, humidity, and dust level.

For high-temperature, high-dust, or corrosive environments, we provide reinforced shafts, wear-resistant lining, and anti-corrosion coatings to ensure long-term stable operation.

Yes. We can customize:

• Brand nameplates & logos

• Color, paint type, and protective coatings

• Voltage, frequency, and motor brands (IEC/NEMA)

This is suitable for distributors, EPC contractors, and regional agents.

For high-temperature, high-dust, or corrosive environments, we provide reinforced shafts, wear-resistant lining, and anti-corrosion coatings to ensure long-term stable operation.

We perform:

• 100% performance testing before shipment

• Impeller balancing

• Noise and vibration testing

• Welding inspection and stress relief

• Motor performance verification

Quality control follows ISO9001 and meets international standard requirements.

Our MOQ is 1 unit for standard models. We support sample orders and small-quantity trials to help customers test performance before bulk purchase.

Yes, we provide comprehensive installation and after-sales support to ensure your equipment operates perfectly on site.

✅ On-site installation by professional engineers
✅ Remote video guidance and step-by-step instructions
✅ Clear installation manuals and technical documents
✅ Training for your local technical team

Choosing Dajing means choosing not just reliable products, but peace of mind and long-term partnership.

Yes. We offer:

• High-efficiency impeller designs

• VFD (frequency conversion) control compatibility

• Low-resistance airflow system optimization

These upgrades help clients reduce power consumption by 10%–28% in typical industrial operations.

Not sure which model you need? Click Contact Us and our senior engineers will help you design the right airflow & pressure solution for your application.