Product Description

                              DJF(a) Series Swung Drop Hammer Exhaust Fan  

       
   

Product Application:

DJF(a) Series Swung Drop Hammer Exhaust fan are widely used in Agriculture and industry ventilation and cooling. It is mainly used for animal
husbandry, poultry house, CZPT breeding, greenhouse, factory workshop, textile etc.

Technical Parameter:

Model	Drive	Blades Diameter (mm)	Blades Rotational Speed	Motor Rotational Speed	Air Flow (m³/h)	Noise Decibels  (db)	Input Power (W)	Voltage     (V)	Frequency  (HZ)	Outline Size (H*W*T) (mm)
DJF(a)-620	Direct	500	1400rpm	1400rpm	5700	≤70	370	220 / 380/ Customized	50 / 60	620*620*450
DJF(a)-750	Direct	600	960rpm	960rpm	10600	≤70	370			750*750*450
DJF(a)-780	Direct	710	960rpm	960rpm	23000	≤70	750			780*780*420
DJF(a)-780-2	Belt	710	650rpm	1400rpm	18000	≤65	370			780*780*400
DJF(a)-830	Belt	720	660rpm	1400rpm	20000	≤65	370			830*830*400
DJF(a)-900	Belt	750	630rpm	1400rpm	22000	≤65	750			900*900*400
DJF(a)-1000	Belt	900	610rpm	1400rpm	25000	≤65	750			1000*1000*400
DJF(a)-1060	Belt	960	600rpm	1400rpm	29000	≤65	750			1060*1060*400
DJF(a)-1100	Belt	1000	600rpm	1400rpm	32500	≤64	750			1100*1100*400
DJF(a)-1220	Belt	1100	460rpm	1400rpm	38000	≤64	750			1220*1220*400
DJF(a)-1380	Belt	1270	439rpm	1400rpm	44000	≤64	1100			1380*1380*400
DJF(a)-1530	Belt	1400	325rpm	1400rpm	55800	≤64	1500			1530*1530*400

Product Description:

	Fan blades 1. Material : 430 stainless steel, thickness 1.2mm 2. Diameter: 1270mm Advantage:  Large air flow, no deformation, no fracture, no dust, attractive and durable. Note: Blade material also have galvanized sheet, aluminum alloy for option
Belt Pulley 1. Material: High strength aluminum-magnesium alloy by die-casting. 2. Blast-sanding treatment, eliminate internal stress to improve its own rigidity and stability Advantage:  Light weight, Low vibration ,attractive appearance.
	Bearing Imported double-row bearing with special waterproof design. Advantage:  High strength, low noise, free maintenance and long service life.
Opening System 1.Material: High quality Nylon PA66 2.Xihu (West Lake) Dis. Rod: 304 stainless steel with special material outside, high strength, no rust, reduce friction. 3.Rivet: 304 stainless steel , wear-resisting, no rust. Advantage: It can keep the shutters open at complete 90 degree to ensure the lowest air resistantce and biggest air volume.
	Belt Brand: Mitsuboshi belt (Japanese) Type: A type Advantage:  Famous brand, Long service life, maintenance free
Blade Support Base 1.Material: Aluminum Magnesium Alloy. 2. Type: Plug-in connection Advantage:  Compare with the traditional welding connection , Our new type Aluminum magnesium alloy base has greatly reduced the friction coefficient, fixed more firmly, avoided
	Motor 1. Brand: Chinese famous motor, Siemens motor, ABB motor and WEG motor 2. Motor Protection Grade: IP55 3. Isulation Class: F grade Advantage: Motor voltage and frequency can be customized. Chinese famous motor OEM by special design for fan, the first put in the phase lack protection device which would power off when shortage of electricity.

                                  

                                                 About our Company

ZheJiang CZPT HangZhou Machinery Co.,Ltd is the biggest and the most professional manufacturer of ventilation equipment in
China,equipped with the most advanced CNC production lines and laser cutting machines, top quality level in the industry.

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.