Dacheng
3rd-Generation Intelligent Fan

Waste-gas systems that
use less power·prove it
keep improving

From high-efficiency drive and direct transmission to demand-based airflow, aerodynamic efficiency and data-driven O&M — a system that removes the losses conventional fans quietly accumulate year after year.

3rd-generation energy-saving industrial fan: deep-blue volute casing with permanent-magnet direct-drive motor and teal airflow lighting
Live speed
1,120 rpm
Customers & Partners
鼎泰电子福昌发展邦电子威利广龙展电子恒晖科技鼎泰电路屹华科技科翔电子
隆海电路至和电子信展精密福昌发电子瓯科达鑫博电子鑫昌盛邦成电子湛崧工程
The Problem

On a fan that runs year-round, the waste rarely stops at the motor

Between electrical input and useful airflow, a conventional belt-driven fan leaks energy at five separate points. Hover an amber branch or a row to see each loss and how it is addressed.

Energy FlowAmber branch = the loss in focus
Electrical input · 100%Useful airflow
Energy flow of a conventional belt-driven fan · band and branch widths are illustrative, not measured

Power is lost before it ever reaches the impeller — and belts mean recurring replacement and downtime.

The fix: direct drive →
Core Technology · End-to-End Efficiency

From electrical input to useful airflow, loss removed at every stage

These four technologies aren't standalone features — they form a closed loop along the energy path, with data-driven O&M making the result measurable and continuously improvable.

Each stage contributes differently depending on operating conditions; the combined effect is not a simple sum of individual figures

Three Generations

Not a replacement fan — an upgraded system

1st generation
Fixed-frequency belt-driven fan
Belt drive, slips and wears · fixed speed, airflow not adjustable
Belts wear out, frequent downtime · no data · the energy baseline
2nd generation
VFD direct-drive fan
Direct drive, no belt · VFD adjustable (usually set by hand)
Less maintenance · some local data · partial saving
3rd generation · this productSystem-level saving
Intelligent energy-saving fan
Permanent-magnet + direct drive · smart VFD, demand-based airflow
Early alerts cut downtime · 24/7 monitoring, savings measurable
Typical overall energy saving
35%–50%
Based on site conditions and before/after measurements
Estimate the saving for my site
Energy Assessment

Do the maths first, then decide whether to retrofit

Enter your site's basic parameters for an instant estimate. Leave a contact and we'll follow up with a detailed assessment based on a site survey.

Estimated saving rate40%
35% · conservative50% · ideal
Preliminary estimate · illustrative
Current annual consumption704 MWh
Estimated annual saving282 MWh
Estimated annual cost saving211 k RMB
Payback periodSubject to site survey and commercial terms
Leave a contact for the full assessment
This is a preliminary estimate based on the values you entered and an assumed saving rate. It is not a guarantee of savings. A formal assessment relies on a site survey and measurements taken before and after the retrofit.
Dacheng Smart O&M PlatformUI mockup · real field names, actual values per platform
Scrubber fan #1 · DC-22Running
Current
42.3 A
Frequency
38.5 Hz
Input power
16.8 kW
Winding temp.
58
Input power, last 24h (kW) · sample data
00:0006:0012:0018:0024:00
07-22 23:41Fan #2 current fluctuation exceeded threshold — alert sentResolved
Smart O&M

No more black-box operation

From “fix it when it breaks” to “warn early, let the data speak” — savings you can measure and track, not just claim.

Remote monitoring
Night-time alerts reach your phone
Fault prediction
Unplanned downtime becomes planned
Data analysis
Reports make savings reviewable
Smart control
Speed adapts to load automatically
24/7 status and data monitoring
Case Studies

Savings proven by before-and-after data

Before and after: an ageing belt-driven fan on the left, the installed 3rd-generation intelligent fan on the right
Electroplating · East China (anonymised)Model: EMCIllustrative case · figures pending confirmation
Fan system retrofit for an electroplating park's waste-gas treatment
Before · annual consumption704 MWh
After · annual consumption443 MWh
Overall saving · ≈ ¥196k / year−37%
Baseline: 3 months of platform measurement before the retrofit · Period: Oct 2025 – Jan 2026 · Conditions: three-shift continuous production (Layout placeholder — replace with verified figures before launch)
Chemical · East China (anonymised)
−41%Overall saving*
Acid-mist tower retrofit
6 months · pending
PCB · South China (anonymised)
−36%Overall saving*
Etching-line exhaust upgrade
4 months · pending
XX
Retrofit projects delivered
Figures pending
XXX units
Units in operation
Figures pending
XXX units
Connected to smart O&M
Figures pending
XXX MWh
Verified energy saved
Figures pending
How We Work Together

Three commercial models for three different concerns

Direct purchase
“Is a one-off investment actually worth it?”

We produce a full savings assessment and payback analysis before any purchase discussion. Five-year full-unit warranty, written into the contract.

Request a quote →
Instalments
“I'd rather not tie up that much cash at once.”

24- or 36-month plans are negotiable, so the monthly energy savings help carry the payments (final terms per commercial agreement).

Model an instalment plan →
EMC (energy performance contract)
“I don't want to pay before the result is proven.”

Measured baseline, verified post-retrofit metering, and a share of the savings. Baseline, verification method and equipment ownership are all defined in the agreement.

Discuss an EMC scheme →

Send us your site parameters —we'll show whether the retrofit pays

Leave your details and we'll prepare a preliminary savings assessment. You can also call or message us directly to arrange a site survey.

Call UsGet Energy Assessment