From the compact DM-100 to the DM-1000. Tell us the roof type and quantity and we will reply with the matching model, unit price and lead time.
Pick the use, floor area and height. Get a recommended model, quantity and the power you save — then send it as a quote request in one tap.
* Estimate based on 3 m/s outdoor wind and typical air-change rates. Savings assume 0.08 W per m³/h, 10 h × 300 days. Final model and quantity are confirmed from roof photos.
We put the estimate above on your roof. Press play and watch the first year go by in 12 seconds.
* Illustration for explanation. Savings follow the estimator assumptions above (0.08 W per m³/h, 10 h × 300 days).
A ventilator draws out harmful gas and dust to protect workers, and controls temperature and humidity to remove odour. Wherever there is a working space, it is not optional.
Once the roof profile and required airflow are set, the model follows.
No power, or want to cut running cost — go wind-driven. Need high airflow — go powered.
Flat and metal panel take the standard base; sloped roofs get a base made to site dimensions.
Tell us the building use and floor area and we will work out the size and quantity.
Nominal diameter from 100mm to 1,000mm. Bar length is to scale.
From 100mm compact units to 1,500mm gravity exhausters. Choose by roof profile and required airflow.
DM-100 · 150 · 200 and DM-300 · 450 · 600 shown to scale
Unit: mm · 100% handmade · MADE IN KOREA
| Model | Overall height | Overall dia. | Base dia. |
|---|---|---|---|
| DM-100 | 297.5 | 312 | 116 |
| DM-150 | 288.5 | 312 | 167 |
| DM-200 | 320 | 382 | 220 |
Small but strong
Best seller
Mid-size
Tap a size and a color — the product photo changes instantly. Made to order in finishes that suit factories, cafés and homes.
① Size
② Plating color
③ QuantityMinimum order: 10 units
Unit price depends on finish and quantity. We will quote exactly the specification you selected.
A wind-driven vent that exhausts on the Bernoulli principle. Aluminium keeps it light and corrosion-resistant, and the base is made to suit the roof.
Powered optionThis unit can also be fitted with a motor for powered use.
Unit: mm · Sloped roofs are built with a custom base
| Model | Top dia. | Base (W × D) |
|---|---|---|
| DM-300 | 300 | 500 × 500 |
| DM-450 | 450 | 750 × 750 |
| DM-600 | 600 | 890 × 890 |
| DM-750 | 750 | 1,020 × 1,020 |
| DM-900 | 900 | 1,200 × 1,200 |
| DM-1000 | 1,000 | 1,300 × 1,300 |
The most robust of the non-powered range, suited to harsh weather and to grain or fertiliser warehouses. Unit: mm
A motor can be mounted on the gravity exhauster so it works as a powered unit. Tell us if your site needs higher airflow.
| Dia. (A) | B | C | D | E |
|---|---|---|---|---|
| Ø 450 | 680 | 680 | 750 | 350 |
| Ø 600 | 870 | 860 | 900 | 450 |
| Ø 750 | 1,060 | 1,050 | 1,050 | 500 |
| Ø 800 | 1,200 | 1,200 | 1,100 | 550 |
| Ø 900 | 1,230 | 1,250 | 1,200 | 600 |
| Ø 1,000 | 1,380 | 1,380 | 1,300 | 630 |
| Ø 1,200 | 1,620 | 1,640 | 1,500 | 780 |
| Ø 1,500 | 2,130 | 2,200 | 1,800 | 850 |
A ventilator only performs when its base fits the roof. We build every base from scratch to match your roof type, opening size and colour.
Metal panel, slate or flat — sloped roofs are built to the exact pitch.
Round or square; different duct sizes are joined with a built-in reducer.
Plain galvanised finish or a paint colour matched to the building.
For sites with heavy heat or dust where wind alone is not enough. Two builds differing in material and fan assembly.
A fixed vent in Copren synthetic resin. It does not corrode at all, suiting coastal and chemical environments, and its light weight puts little load on the roof.
Copren fixed type · Integrated box type
Finishing parts for supply and exhaust openings and service access points. They keep rain and debris out while keeping air moving.
With OBD damper · airflow control
With handle · filter-ready
Magnetic removable louver
Magnetic + adjustable grille
Magnetic removable
· Photos show representative models. Every size and shape is custom-made for your site.
Request a quotation by e-mailminniejeong7@gmail.comSpecial nickel plating over SUS-304 gives corrosion resistance and high strength at low temperature, protecting against salt and moisture.
Three finishes in addition to standard stainless steel.
Blocks insects. Available as an option on the DM-100.
Our centrifugal wind-driven ventilator combines a sealed bearing with wide corrugated blades, so it turns smoothly even in a very light breeze. The rotation transfers to the built-in fixed bearing, exhausting air without wobble or noise.
Exhausts kitchens and bathrooms in apartments and houses, and clears contaminated air from production plants while controlling humidity.
Removes and circulates contaminated air in warehouses and livestock barns. Running constantly without power, it clears odour from barns and kitchens.
We corrected the noise and weak extraction of conventional turbine ventilators. Unlike low-cost imports, ours are built for durability and long service.
The more sites, the better the terms. Volume unit prices, bases and grilles made together, in one order.
No drawing required. One photo of the roof is usually enough.
· Unit price depends on model, material and quantity. Tell us the destination port or city and we will include freight terms in the reply.
Request a quotation by e-mailminniejeong7@gmail.comWe keep specification, quantity and price on record, so inquiries are handled by e-mail and fax.
Roof type, quantity and destination. A photo helps us answer faster.
We confirm the matching model and reply with unit price and lead time.
Quantity and shipping date are fixed. Non-standard sizes are scheduled with you.
Handmade at our plant in Sihwa Industrial Complex and shipped from Korea.
No trading company in between. Production and shipping are handled directly from Sihwa Industrial Complex, Siheung, Republic of Korea.
| Company | DongMinVent |
|---|---|
| CEO | Kim Min-jeong |
| Address | Rm 630, 3-ra, 307 Gyeongje-ro, Siheung-si, Gyeonggi-do 15108, Republic of Korea (Sihwa Complex) |
| Business | Manufacture of ventilation equipment · Wholesale and retail · R&D |
| Business reg. no. | 580-52-00844 |
| Country of origin | Republic of Korea (MADE IN KOREA) |
| FAX | +82-503-8379-4897 |
| minniejeong7@gmail.com | |
| Business hours | 09:00–18:00 (KST, GMT+9) |
The turbine ventilator is driven by wind and the internal updraft, so it draws no power and needs no wiring. Where heat or dust is heavy and more airflow is required, we recommend combining it with powered roof fans.
Every unit is handmade in Korea. A sealed bearing keeps it turning smoothly and quietly in the lightest breeze, and zinc and nickel plating give it a far longer service life.
Send one photo of the roof with the building use and approximate area, and we will select the model. Sloped roofs are supplied with a custom base.
Yes. Volume supply to contractors and mechanical installers is our main business. Send the expected quantity and we will quote a separate unit price.
We will come back with the model, unit price and lead time.
Request a quotation by e-mailminniejeong7@gmail.com