Product Description

           Exhaust Fan Heavy Hammer Axial Fan for Greenhouse Use

Features:

1. The fan consists of blades, motor, frame, protect net, support frame and shutters. The shutters open and close automatically when the fan starts up and stops running, avoiding outside dust entering the room.
2. Frame: extra thick galvanized steel sheet, one-off molded, high strength anti-corrosive and durable.
3. Shutter: made of high strength galvanized steel sheet, flexible operation, dust-proof and waterproof.
4. Belt tensioner: made of high quality aluminum magnesium alloy, avoiding belt loosening of dropping off, extending service life of belt and avoiding distortion.
5. Strict test criterion: consist of airflow test, noise test, libration test, drive concentric test, blade RPM test, whole machine efficiency test, dynamic balance test, the thickness of the galvanized sheet test, the size of the spare parts test, etc.

Main components:

	Blades are made of high quality stainless steel by CNC TURRET PUNCH PRESS, attractive and durable, special design of blade shape ensuring big air flow, no broken, passing the homeostasis test to ensure the air volume keeping the same as the very beginning during the optional life fan.
	Belt impeller and pulley are made of aluminum magnesium alloy by injection molding and pass through blast-sanding treatment for attractive appearance, reducing the weight of blade, high corrosion resistance, eliminating internal stress improve its own rigidity and stability, high strength.
	Siemens motor or Chinese famous motor can be chosen, high efficient and energy-saving with CCC certificate. Protection class: IP55, insulation class: F. The voltage, power, frequency and phase can be customized.
	The bearing adopts special waterproof design of double-row bearing, high intension, low noise, maintenance-free and long service life.
	Swung drop hammer is made of high quality nylon, stable performance, guaranteeing the shutters open and close flexibly.

Main Technical Parameters:

Model	Diameter blades (mm)	Blades rotational speed (rpm)	Motor rotational speed (rpm)	Air flow (m3/h)	Total pressure (Pa)	Noise	Power (W)	Voltage (V)	Height (mm)	Width (mm)	Thickness (mm)
XHF(c)-620 (20”)	500	1400	1400	5700	55	≤70	250	380	620	620	400
XHF(c)-780 (28”)	710	960	960	23000	75	≤70	750	380	780	780	400
XHF(c)-830 (29”)	720	660	1400	20000	60	≤60	550	380	830	830	400
XHF(c)-900 (30”)	750	630	1400	22000	65	≤65	370	380	900	900	400
XHF(c)-1000 (36”)	900	610	1400	30000	70	≤70	750	380	1000	1000	400
XHF(c)-1100 (40”)	1000	600	1400	32500	70	≤70	750	380	1100	1100	400
XHF(c)-1220 (44”)	1100	460	1400	38000	73	≤70	750	380	1220	1220	400
XHF(c)-1380 (50”)	1250	439	1400	40000	56	≤70	1100	380	1380	1380	400
XHF(c)-1530 (56”)	1400	325	1400	55800	60	≤70	1500	380	1530	1530	400

Applications:
1. Xihu (West Lake) Dis. standard exhaust fan is installed outside the workshop window to remove smelly gases, it is usually used in heat treatment plant, casting plant, plastics plant, garment factory, chemical plant, ect.
2. The exhaust fan can be used with evaporative cooling pad can reduce the temperature by 8-10 degree while not compromising on the humidity, it is suitable for use in all kinds of textile mills, such as cotton mill, weaving factory, chemical fiber plant, warp knitting plant, ect.
3. It can be used for cooling greenhouse, stock farm.
4. The standard exhaust fan also used in the storage, logistics, and other fields.

Our Service:

1. We will provide all the details to you during the mass production
2. Customize size according to need
3. Your requirements and complains are highly respected
4. Necessary test and certification can be obtained as you request
5. Our technicians can debug and teach us how to operate the machine

The Advantages and Disadvantages of Neoprene Timing Belts

The timing belt is an important component of an automobile engine. Made of special materials, this belt coordinates the rotational motion of the crankshaft with the camshaft. The coordinated precision is essential for sustainable combustion, and ensures that the valves in the combustion chamber open at the right times. Timing belts determine the engine’s pace, so it is essential that they perform at high synchronicity and strong enough to operate in extreme conditions.

Fabric timing belt

A timing belt is made of a yarn that has been crimped and woven into a mating surface, called the engagement surface. This yarn, known as the warp, must be able to stretch from a substantially flat state along irregularities in the mold. It must be flexible enough to stretch by several tens of percent under low load conditions. The warp yarn of a timing belt is made of synthetic fiber and is crimped into the right shape to be stretched easily.
This fabric can be used without thickening the base cloth. It can contain a large number of warp threads, and its wear resistance can be enhanced over time. The timing belt of the present invention does not crack or wear out after a long time of use. The base cloth does not wear out, which allows the timing belt to last for a long time. This makes it an extremely durable material. To learn more, read on.
The teeth of a timing belt are made of tough rubber and a nylon fabric facing. The fabric is coated with a plastic compound that gives it its shape and covers the cord. The materials used to make these belts vary, but all are strong and durable. They are also suitable for high-load applications. In addition to nylon timing belts, strongbelt premiums are also available. In addition to nylon and neoprene timing belts, they are also compatible with RPP and HTD pulleys.
The teeth of timing belts are made of high-strength polychloroprene elastomer. The teeth are made of a special manufacturing process that ensures good adhesion. The facing fabric is made of low-elongation glass cord and is covered by a polyamide fabric that has a low coefficient of friction. If you need an exact fit, you can buy a high-quality belt from TransDev.

Neoprene timing belt

When it comes to dependable drive belts, neoprene is hard to beat. It’s widely used in insulated clothing and weather stripping, and has been a key component in the development of timing belts since the late 1970s. And because it’s so hardy, neoprene timing belts are incredibly reliable. Here are a few reasons why. Neoprene is the most durable synthetic material for timing belts, and these 3 reasons should not discourage you from purchasing a new neoprene timing belt.
Neoprene timing belts are made of a high-quality chloroprene compound with a hardness of 74 Shore A. The high-strength glass fiber strands in the belt’s body transmit high power while enhancing its flexural strength. In addition, it’s covered with a high-strength polyamide fabric to reduce friction and protect contact surfaces from wear and tear.
Unlike neoprene, polyurethane synchronous belts are resistant to temperature and abrasion. Polyurethane timing belts are resistant to acids and chlorides, and exhibit excellent abrasion resistance. A neoprene belt can be used in high-speed applications, and can withstand extreme temperatures. However, the resistance of polyurethane to abrasion is not as good as that of neoprene.
The 2 most common types of timing belts are rubber and urethane. Rubber is the least expensive and quietest, and is the least flexible of the two. Neoprene is also highly elastic and does not retain its shape when it’s stretched, making it a popular choice for applications in manufacturing, agriculture, and robotics. They are also great for applications where precision and motion control are important. These properties make timing belts extremely effective in leading the industry toward its goals.

Chain timing belt

Traditionally, a vehicle’s timing system consists of a timing belt or chain. These components keep the engine’s intake and exhaust valves in the proper order. When these components go bad, it can ruin the engine in seconds. But there are advantages and disadvantages to each of them. Read on to learn about the pros and cons of each type of timing system. Here are some examples. Chain: A timing belt is generally made of reinforced rubber.
Chain: A timing chain is generally found in heavy-duty vehicles with higher torque. This type of timing belt is also found on many cars and SUVs with 4 cylinder engines that do not require a lot of torque. Unlike timing belts, timing chains are more durable and will last longer than their rubber counterparts. But there are certain things to keep in mind when replacing a timing belt. Make sure to change the oil regularly to avoid premature wear.
Chain: A chain is easier to maintain than a timing belt. It does not change length in response to temperature. And it requires a smaller tensioner. However, this also means that the timing belt is more prone to breaking. It can jump out of place if oil is flowing along it, causing an engine malfunction. If this happens, you’ll have to replace the entire timing belt and the engine will not work correctly. That’s why replacing a chain is so important.
A timing belt is a critical part of an engine. A failed timing belt can cause catastrophic engine damage. It can slip and break, colliding with the piston and valves. Fortunately, there are a variety of ways to check your timing belt. But a good rule of thumb is to replace it as soon as possible. You’ll also need to remove the front engine cover and any other components that may be in the way. In some cases, the engine might even have to be moved.

Trapezoid shaped teeth

In terms of tooth profile, there are 2 main types of timing belts: the curvilinear and trapezoidal types. Curvilinear timing belts are more rounded and less likely to result in excessive tension loss. These types of timing belts are also more prone to backlash and reduce accuracy. Here’s how they differ from each other. These 2 types of belts share similarities but differ in important ways.
Older timing belts generally have trapezoidal-shaped teeth, but newer types use curved teeth. Curved teeth are less prone to wear out quickly and last longer than straight ones. The trapezoidal teeth also tend to wear out more quickly at higher speeds. As a result, they’re only suitable for cars that get very little use. If you’re planning on using your timing belt frequently, you may want to choose a new 1 with curved teeth.
Curvilinear teeth are designed to alleviate the stress concentrations caused by trapezoidal tooth profiles. They also have a greater depth and reduce ratcheting. In addition to their efficiency, curvilinear timing belts are quieter than their trapezoidal counterparts. And they’re a little bit more expensive than their trapezoidal counterparts. So, what’s the difference between these 2 types of teeth?
Timing belts have a tendency to favor the tracking of an “S”-shaped twist. As a result, a trapezoid-shaped timing belt is more likely to keep the engine in sync. A good quality timing belt will help you achieve this. If you don’t, consider replacing your timing belt with a metric-styled one. That way, you’ll get the best performance out of your belt.

Other types of timing belts

Timing belts are essential for operating your vehicle’s engine. These belts connect the engine’s crankshaft and camshaft. The belts synchronize the timing of the engine’s valves and pistons to prevent damage. Previously, the belt was referred to as the “gilmer drive belt.”
There are 3 basic designs for timing belts. Some are shaped like a trapezoid, while others have a curvy tooth shape. Timing belts with this tooth design are generally more efficient for force transmission, although they suffer from backlash. These teeth also wear quickly at high speeds, which can make them prone to noise. In order to solve these issues, manufacturers now offer belts with curved teeth.
Another popular type is polyurethane. These are resistant to oil and high temperatures, and are energy-efficient solutions. Polyurethane timing belts offer increased elasticity and load capacity, which are important for optimal torque production. These belts are favored by a variety of industries because of their ease of cleaning and maintenance. They can be used for power transmission systems, as well as in roller conveyor systems. However, fabric timing belts are best used when acceleration forces are high.
Other types of timing belts are not always as durable. V-Belts have teeth-like structures on their surfaces and work under constant speed. They are typically a lighter option, but have similar disadvantages. They are more expensive than chains and lack the flexibility of customizing. Unlike chains, timing belts are sold in predetermined length loops. Their pitch is easily identified. It is a key indicator of whether or not they are suitable for a specific application.