Key specification for this barn ventilation exhaust fan: 220 V, 380 V, power source Electric. Everything below is reproduced from the factory data sheet. Made by Shandong Guyuesheng Intelligent Equipment Co., Ltd. (1 year on the platform, typical reply ≤2h). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Barn Ventilation Exhaust Fan
- Power Source: Electric
- Voltage: 220 V, 380 V
- Blade Material: galvanized Sheet
- Warranty: 1 Year
- Place Of Origin: Shandong, China
- Fan Type: Axial Fan
Technical Specifications
| Fan Type | Axial Fan |
|---|---|
| Voltage | 220 V, 380 V |
| Bearing Type | TWO BALL BEARING |
| Blade Material | galvanized Sheet |
| Power Source | Electric |
| Mounting Type | Wall Fan |
| Control Methods | Touch Control, Button Control |
| Customized Support | OEM, OBM, ODM |
| Warranty | 1 Year |
| After-Sales Service Provided | Video Technical Support |
| Place Of Origin | Shandong, China |
| Brand Name | chengyi |
| Color | Silver |
| Selling Units | Single item |
| Single Volume | 0 cm³ |
| Single Gross Weight | 0.0 kg |
Product Details
Negative pressure fan
A negative pressure fan is an industrial ventilation device that mainly achieves cooling and ventilation through air convection
and negative pressure air exchange principles. It is suitable for high-temperature workshops, chemical plants, warehouses and
logistics, and greenhouses. By forcibly expelling the hot indoor air and drawing in fresh outdoor air, it can improve 90%-97% of
ventilation problems.
and negative pressure air exchange principles. It is suitable for high-temperature workshops, chemical plants, warehouses and
logistics, and greenhouses. By forcibly expelling the hot indoor air and drawing in fresh outdoor air, it can improve 90%-97% of
ventilation problems.
Negative pressure fan turned on
Advantages of negative pressure fans: 1. Low investment and low energy consumption. For the same cooling capacity, the initial
investment is about one-sixth of that of an air conditioner, and the operating cost is about one-tenth of an air conditioner; 2.
Significant cooling effect, capable of lowering the temperature to around 28°C, which aligns with human body temperature. The
effect is even better if water from a well is used as the source for the water tank, and it can be comparable to air conditioning;
3. Fresh and humid air, with air cleanliness reaching up to 99%.
investment is about one-sixth of that of an air conditioner, and the operating cost is about one-tenth of an air conditioner; 2.
Significant cooling effect, capable of lowering the temperature to around 28°C, which aligns with human body temperature. The
effect is even better if water from a well is used as the source for the water tank, and it can be comparable to air conditioning;
3. Fresh and humid air, with air cleanliness reaching up to 99%.
Negative pressure fan off
Fan casing: Both the outer frame and the louvers are made of galvanized sheet metal using mold manufacturing. Fan blades: The blades are formed by a one-time stamping process, fastened with forged screws, and precisely balanced and
calibrated by computer. 3. Louvers: The louver connectors are made of high-strength plastic steel material, closing tightly with a
long service life, mainly used to prevent dust and rain when the fan is not in use.
Protective net: Safety protective net to prevent hands, foreign objects, etc., from entering the fan.
calibrated by computer. 3. Louvers: The louver connectors are made of high-strength plastic steel material, closing tightly with a
long service life, mainly used to prevent dust and rain when the fan is not in use.
Protective net: Safety protective net to prevent hands, foreign objects, etc., from entering the fan.
Negative pressure fan turned on
Advantages of negative pressure fans: 1. Low investment and low energy consumption. For the same cooling capacity, the initial
investment is about one-sixth of that of an air conditioner, and the operating cost is about one-tenth of an air conditioner; 2.
Significant cooling effect, capable of lowering the temperature to around 28°C, which aligns with human body temperature. The
effect is even better if water from a well is used as the source for the water tank, and it can be comparable to air conditioning;
3. Fresh and humid air, with air cleanliness reaching up to 99%.
investment is about one-sixth of that of an air conditioner, and the operating cost is about one-tenth of an air conditioner; 2.
Significant cooling effect, capable of lowering the temperature to around 28°C, which aligns with human body temperature. The
effect is even better if water from a well is used as the source for the water tank, and it can be comparable to air conditioning;
3. Fresh and humid air, with air cleanliness reaching up to 99%.
Negative pressure fan off
Fan casing: Both the outer frame and the louvers are made of galvanized sheet metal using mold manufacturing. Fan blades: The blades are formed by a one-time stamping process, fastened with forged screws, and precisely balanced and
calibrated by computer. 3. Louvers: The louver connectors are made of high-strength plastic steel material, closing tightly with a
long service life, mainly used to prevent dust and rain when the fan is not in use.
Protective net: Safety protective net to prevent hands, foreign objects, etc., from entering the fan.
calibrated by computer. 3. Louvers: The louver connectors are made of high-strength plastic steel material, closing tightly with a
long service life, mainly used to prevent dust and rain when the fan is not in use.
Protective net: Safety protective net to prevent hands, foreign objects, etc., from entering the fan.
Principle of Ventilation with Negative Pressure Fans Negative pressure fans exhaust air outward, causing the indoor air pressure
to drop and the indoor air to become thin, forming a negative pressure zone. Air flows into the room to compensate due to the
pressure difference. In actual industrial workshop applications, negative pressure fans are concentrated on one side of the
workshop, and the air inlet is on the opposite side. Air flows from the inlet to the negative pressure fans, creating a convection
breeze. In this process, doors and windows near the negative pressure fans remain closed, forcing air to flow into the workshop
through doors and windows on the inlet side. Air flows in an orderly manner from the inlet into the workshop, passes through the
workshop, and is exhausted by the negative pressure fans. The ventilation is thorough and efficient, with a ventilation rate of up
to 99%. Through specific engineering designs and by designing ventilation speed and airflow according to needs, any high heat,
harmful gases, or dust and smoke can be quickly expelled from the workshop, and any ventilation problems can be completely solved
at once. The ventilation effect can be achieved within seconds of starting the fans.
to drop and the indoor air to become thin, forming a negative pressure zone. Air flows into the room to compensate due to the
pressure difference. In actual industrial workshop applications, negative pressure fans are concentrated on one side of the
workshop, and the air inlet is on the opposite side. Air flows from the inlet to the negative pressure fans, creating a convection
breeze. In this process, doors and windows near the negative pressure fans remain closed, forcing air to flow into the workshop
through doors and windows on the inlet side. Air flows in an orderly manner from the inlet into the workshop, passes through the
workshop, and is exhausted by the negative pressure fans. The ventilation is thorough and efficient, with a ventilation rate of up
to 99%. Through specific engineering designs and by designing ventilation speed and airflow according to needs, any high heat,
harmful gases, or dust and smoke can be quickly expelled from the workshop, and any ventilation problems can be completely solved
at once. The ventilation effect can be achieved within seconds of starting the fans.
1. Trust is the confidence to go all out in every after-sales service. 2. From the moment you place your order to every day you
use the product, after-sales service is always there to protect you! Choosing us means choosing a worry-free life. 3. The warmth
of responding 100% to any issues can only be understood through personal experience. 4. Products are praised for their quality,
services earn reputation through sincerity; true gold fears no fire—we prove with our actions: your satisfaction is our only
pursuit. 5. We do not disparage competitors, reply to customers honestly, and perfect every detail—from design, production, and
sales to after-sales maintenance. My professionalism can withstand the test of time.
use the product, after-sales service is always there to protect you! Choosing us means choosing a worry-free life. 3. The warmth
of responding 100% to any issues can only be understood through personal experience. 4. Products are praised for their quality,
services earn reputation through sincerity; true gold fears no fire—we prove with our actions: your satisfaction is our only
pursuit. 5. We do not disparage competitors, reply to customers honestly, and perfect every detail—from design, production, and
sales to after-sales maintenance. My professionalism can withstand the test of time.
Frequently Asked Questions
Q: Can the product packaging be changed to our own design? A: Customization is possible. The minimum order quantity needs to be
confirmed and should not be too small. Customization will be based on the situation. Q: Is the quality of your company's products
good? A: The company's products undergo strict product testing to ensure reliable quality and normal operation. Q: Does your
company produce the products themselves or are you a distributor? A: The company has its own production workshop. From design and
production to sales and after-sales service, everything is integrated, and products can be delivered normally. Q: Do you provide
product samples, and what is the minimum order quantity? A: Samples are paid, and shipping costs are borne by the customer. After
the contract is successfully signed, the cost can be refunded. For long-term cooperation, various flexible solutions can be
provided based on the situation. Q: What is the warranty period? A: The company's products have a one-year warranty, with shipping
costs self-paid, and under the condition of no human-induced damage. Q: How are product quality issues resolved? A: We promise to
investigate and arrange replacement or refund, requiring customers to provide photos of the damage and packaging details.
confirmed and should not be too small. Customization will be based on the situation. Q: Is the quality of your company's products
good? A: The company's products undergo strict product testing to ensure reliable quality and normal operation. Q: Does your
company produce the products themselves or are you a distributor? A: The company has its own production workshop. From design and
production to sales and after-sales service, everything is integrated, and products can be delivered normally. Q: Do you provide
product samples, and what is the minimum order quantity? A: Samples are paid, and shipping costs are borne by the customer. After
the contract is successfully signed, the cost can be refunded. For long-term cooperation, various flexible solutions can be
provided based on the situation. Q: What is the warranty period? A: The company's products have a one-year warranty, with shipping
costs self-paid, and under the condition of no human-induced damage. Q: How are product quality issues resolved? A: We promise to
investigate and arrange replacement or refund, requiring customers to provide photos of the damage and packaging details.
Ordering and Pricing
- Minimum order quantity: 1 piece
- Volume pricing:
- 1–299 piece: US $66.17 / piece
- 300–1999 piece: US $58.82 / piece
- 2000+ piece: US $55.88 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this barn ventilation exhaust fan?
The standard minimum order quantity is 1 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Can the barn ventilation exhaust fan be supplied for my local voltage?
The standard configuration is 220 V, 380 V. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Shandong Guyuesheng Intelligent Equipment Co., Ltd., based in China. The company 1 years as a verified Alibaba.com supplier, operates its own manufacturing. Browse the full Shandong Guyuesheng Intelligent Equipment Co., Ltd. range on HVACR Nexus.
See more in Wall Exhaust Fans on HVACR Nexus.
