China Professional W, Wy Series Horizontal Reciprocating Vacuum Pumps in China near me supplier

Product Description


20 Years
   ZiBoZhuoXin Pump Industry co,.Ltd is located in a century industrial city known as the Pump Capital of China—HangZhou city, ZheJiang Province.  Has over 20 years’ experience of manufacturing vacuum pumps and 10+ years’ experience of exporting.
Various produccts
   We can suppply all type of vacuum pumps and spare parts in China, 2BV/2BEA/2BEC/SK/2SK/JZJ2B/ etc, and other industrial machine;
24 Hours
   Please do not hestiate to contact us if have any urgent matters,each of your inquiries will be taken into account and get our response within 24 hours.

Product Main feature:
W,WY series horizontal reciprocating vacuum pumps Characteristics:
W type vacuum pump adopts the circle-shaped stationary valve, and its  ultimate pressure (absolute pressure) is lower than 2600Pa. The WY type vacuum  pumps adopt stripe-shaped moving valves,and its ultimate pressure is lower than 1300Pa.
The pumps are principally used in the chemical industry,pharmaceutical,light industry,building material and electrical appliance etc.
Mechanical transmission part:
The mechanical transmission part of the entire mechanism is in a closed body, and the vacuum pump crankshaft is supported in tapered roller bearings on both sides of the body. A large pulley is mounted on 1 end of the crankshaft to drive the transmission portion. The connecting rod connects the journal of the crankshaft with the crosshead. A large pulley is mounted at 1 end of the piston rod to drive the transmission portion. The other end is mounted on the tapered bore of the piston and secured by a nut. The motor and the small pulley mounted on the shaft drive the crankshaft to rotate by the triangular tape, so that the piston reciprocates in the cylinder through the action of the connecting rod and the crosshead.
When the connecting rod crank mechanism moves in the machine body, the lubricating oil in the oil pool is splashed to lubricate the friction surface of the bearing, crankshaft neck, crosshead and slip. In order to facilitate the inspection and maintenance of the transmission mechanism, the door is provided with a detachable door cover on both sides and the back, and an oil window is arranged on the rear cover to indicate the oil level of the oil pool in the body.
Gas circulation part:
The air chamber and the cylinder are integrally formed, the air inlet chamber is provided with an intake valve as an air inlet, and the air chamber is provided with an exhaust valve as an exhaust port, and a valve plate and a coil spring are formed on the air groove of the valve to form a check valve. To control the intake and exhaust and automate the gas distribution.
There is a piston in the cylinder, and the piston is equipped with a piston ring to ensure that the ends of the cylinder separated by the piston are airtight. When the piston reciprocates in the cylinder, the volume at both ends of the cylinder is constantly changed, the area of 1 end enlarges the suction gas, and the other end reduces the exhaust gas. The combined action of the piston and the air valve periodically completes the suction and exhaust of the vacuum pump.
The cooling water flowing in the water jacket of the cylinder takes the heat generated by the compressed surface of the gas and the heat generated by the friction of the metal surface, so that the cylinder does not overheat. The cooling water flows into the water from below the cylinder head, and flows out of the vacuum pump through the water outlet of the water jacket.
The friction surface between the inner wall of the cylinder and the piston ring is lubricated by the oil cup mounted on the cylinder.
W series reciprocating vacuum pumps use:
W series pump (a.k.a Piston vacuum pump) is 1 of the main equipment gaining rough vacuum, used for evacuating air in a sealed vessel. It widely used in the chemical and food industries, and is particularly suitable for pumping gases in the vacuum distilling, vaporizing, dipping, concentrating, crystal, drying and filtering.
W series vacuum pump performance parameters:

W,WY Series Horizontal reciprocating vacuum pump  in china:

Model WY-50(V5) WY-100(W4) WY-200(W5) W3 W4-A W4-1 W5-1 W-300
Suction air speed(m3/h) 200 370 770 200 370 370 770 1080
Maximum pressure(Pa) 1300 1300 1300 2600 2600 2600 2600 2600
Rotation Speed(r/min) 300 200 200 300 200 530 430 300
Motor power(KW) 5.5 11 22 5.5 11 11 22 30
Cylinder diameter(mm) 250 x 150 350 x 200 455 x 250 250 x 150 350 x 200 250 x 150 350 x 200 450 x 200
Air inlet/outlet diameter(mm) 2″ 4″ 5″ 2″ 4″ 4″ 5″ 4″
Water inlet/outlet diameter(mm) ½” ½” ¾” ½” ¾” ½” ¾” ¾”
Volume(mm) Length(mm) 1435 1819 2357 1418 1809 1486 1805 1980
Width(mm) 624 876 1571 630 876 520 670 745
Height(mm) 710 900 1162 650 900 720 860 980

WL W Series vertical oil-free reciprocating vacuum pump

Model Suction air speed(L/S) Maximum pressure(Pa) Motor Power(KW) Rotation Speed(r.p.m) Air inlet/outlet diameter(mm) Weight(KG)
WL W-500 50 2600 4 350 G2.5″ 500
WL W-100 100 2600 7.5 355 100 800
WL W-150 150 2600 11 235 125 1300
WL W-200 200 2600 15 310 125 1350
WL W-300 300 2600 22 460 125 1400
WL W-600 600 2600 45 310 200 3200


Q: What’s your MOQ?
A: One set;

Q: What are the causes of no flow or insufficient flow of centrifugal pump?
A: There is air in the suction pipe or pump, which needs to be discharged. Air leakage is found in the suction pipeline, and the leakage is repaired. If the valve of suction line or discharge line is closed, relevant valve shall be opened. If the suction height is too high, recalculate the installation height. The suction line is too small or blocked.

Q: How to resist cavitation in centrifugal pump?
A: Improve the structure design from the suction to the impeller of the centrifugal pump;Adopt double stage suction impeller and use anti-cavitation material;

Q:What is the function of rubber ball in water ring vacuum pump?
A: Rubber ball in water ring vacuum pump, the correct name is called rubber ball valve. Its role is to eliminate the pump equipment in the operation process of the phenomenon of over compression or insufficient compression.

Q:How long is warranty?
A:One year formain construction warranty.

Q:How can I pay for my items? What is the payment you can provide
A:Usually by T/T, 30%-50% deposit payment once PI/Contract confirmed, then the remaining balance will be paid after inspection and before shipment via T/T or L/C;
 welcome client from home and abroad to contact us for future cooperation.
Detail size drawing and install drawing please contact our sales in charge to get;

key:nash/simense/refurish/vacuum pumps/HangZhou CZPT pump/

The benefits of using pulleys

A pulley is a mechanical device that converts force into rotation. There are many advantages to using pulleys. Let’s take a look at a few of them. This article will describe the advantages, types, applications, and power sources of pulleys. You can then choose the pulley that best suits your specific needs. If you’re looking for a new tool to help you with a certain task, this article is for you.

Mechanical advantage

The mechanical advantage of a pulley can be defined as the ratio of applied force to the applied force. The mechanical advantage of a pulley can be calculated by considering several factors, including weight and friction. It can be calculated by the force applied per unit length of rope and the number of pulleys used. In a single-circuit system, the force required to lift a heavy object is equal to the user’s body weight.
The mechanical advantage of a pulley can be realized by comparing it to a seesaw. Both uses of rope are suitable for lifting objects. A rope 4 times heavier than a kilo is 4 times as effective. Because the forces on both sides of the pulley are equal, a small force is enough to move a large weight a short distance. The same force can be applied to a large mass to lift it several meters.
After introducing the concept of mechanical advantage, learners will practice using the pulley system. In addition to testing the pulley system, they should also calculate its mechanical advantage. Using either the instructor-provided handout or the learner’s workbook, students will determine how easily the pulley system functions. Once they have completed the test, they can discuss their results and how the system can be improved. These courses are best completed as part of a mini-unit or as a standalone main course.
The mechanical advantage of the pulley system is proportional to the number of rope loops. This circuit requires the same force as the dual circuit to lift heavy objects. A single lap requires only a third of the force to lift a double lap, while 3 laps require almost half the energy required for a single lap. The mechanical advantage of the pulley system becomes constant as the number of cycles increases.
The 3:1 Mechanical Advantage system feels like lifting a 300-pound load with 3 feet of rope. The three-foot-long rope moves the load 1 foot high. Understanding the mechanical advantages of pulleys is critical for rescuers when trying to create the perfect pulley system. Ideally, the pulley system will be anchored to a nearby rock, tree, pole or person – if the weight is not too heavy.

Types of pulleys

There are several types of pulleys. V-belt pulleys are the type commonly used in vehicles and electric motors. “V” pulleys require a “V” belt, and some even have multiple V grooves. “V” pulleys are often used in heavy duty applications for power transmission because they reduce the risk of power slippage.
Composite pulleys combine the properties of fixed and movable pulleys. Compound pulleys are able to change the direction of force while requiring relatively low force to move even the heaviest loads. Mechanical advantage is a measure of the effectiveness of a machine or equipment. It can be divided into 3 categories: force, distance and mechanics. Once you understand how each type works, you can design complex machines.
Fixed pulleys: These pulleys are the most basic type of pulleys. They use ropes and slotted wheels to move with the lifted object. Because they are so simple to set up, lifting heavy objects is a breeze. Although the moving object feels light, it is actually heavier than it actually is. These pulleys are used in construction cranes, utility elevators and many different industries.
Compound Pulley System: A pulley pulley is a combination of 2 fixed pulleys and 1 movable pulley. Compound pulley systems are effective for moving heavy objects because they have the largest force multipliers and are flexible enough to change the direction of the force as needed. Composite pulley systems are commonly used in rock climbing, theater curtains and sailing. If you’re looking for a pulley system, you can start by evaluating the types of pulleys and their uses.
Construction Pulleys: These are the most basic types of pulleys and have wheel rails. These pulleys can be lifted to great heights and attached to chains or ropes. They allow workers to access equipment or materials from greater heights. They are usually mounted on wheels with axles and secured with ropes. They are essential tools for construction workers. There are many different types of pulleys out there.

energy source

Belts and pulleys are mechanical devices used to transmit energy and rotational motion. The belt is connected to the rotating part of the energy source, and the pulley is mounted on the other. One pulley transmits power to the other, while the other changes the direction of the force. Many devices use this combination, including automobiles, stationary generators, and winches. It is used in many home applications, from conveyors to treadmills. Pulleys are also used for curtains in theater halls.
Pulley systems are an essential part of modern industry and everyday life. Pulleys are used in elevators, construction sites and fitness equipment. They are also used in belt-driven generators as backup power. Despite their simple and seemingly humble beginnings, they have become a versatile tool. From lifting heavy objects to guiding wind turbines, pulley systems are widely used in our daily lives.
The main reason why pulleys are so popular is the mechanical advantage they offer. They can lift a lot of weight by applying very little force over longer distances. For example, a small motor can pull 10 meters of cable, while a large motor can pull 1 meter. Also, the work done is equal to the force times the distance traveled, so the energy delivered to the large motor is the same.
The power source for the pulley system can be cables, belts or ropes. The drive element in a pulley system is usually a rope or cable. A belt is a loop of flexible material that transmits motion from 1 pulley to another. The belt is attached to the shaft and a groove is cut in the pulley. The belt then transfers energy from 1 pulley to the other through the system.


A pulley is a mechanical device used to lift heavy objects. They reduce the amount of work required to lift heavy objects and are an excellent choice for many applications. There are several different applications for pulleys, including elevators, grinders, planters, ladder extensions, and mountaineering or rock climbing. Let’s take a look at some of the most popular uses for pulleys in modern society. These include:-
A pulley is a mechanical device that changes force. To use, you wrap the rope around it and pull down to lift the object. While this device is very useful, a major limitation of using pulleys is that you still have to apply the same force to lift the object as you would without the pulleys. This is why people use pulleys to move large objects like furniture and cars.
In addition to lifting heavy objects, pulleys are used in elevators, flagpoles and wells. These systems allow people to move heavy objects without straining their backs. Many other examples of pulleys in the home include garage doors, flagpoles, and elevators. They also help raise and lower flagpoles, which can reach several stories high.
There are 2 basic types of pulleys: movable and fixed. Fixed pulleys are attached to a ceiling or other object using 2 ropes. Modern elevators and construction cranes use movable pulleys, as do some weight machines in gyms. Composite pulleys combine movable and fixed pulleys to minimize the force required to move heavy objects.
Another type of fixed pulley is the flagpole. A flagpole can support a country, organization, or anything else that needs to be lifted. A taller flagpole creates a prouder moment for those who support it. The operation of the rope and pulley mechanism is very simple. The user simply attaches the flag to the rope, pulls the pulley, and he or she can watch the flag rise and unfold.

China Professional W, Wy Series Horizontal Reciprocating Vacuum Pumps in China     near me supplier China Professional W, Wy Series Horizontal Reciprocating Vacuum Pumps in China     near me supplier


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