Solution Description
Doing work principle
Roots pumps with pre-admission cooling mostly consists of rotor 1 and 2, pump physique 4, gas cooler 7, and so forth(see determine beneath). Because of to its specific interior structure design, it can run reliably for a prolonged time beneath substantial differential force and substantial compression ratio.
The cooling fuel enters the suction chamber of the pump from both sides of the pump human body so that the pump does not overheat due to the compressed fuel, but has no influence on the pumping overall performance. The figure beneath exhibits the rotor rotating a hundred and twenty levels in the pump chamber and finishing 1 suction and exhaust.
Cooler and motor are necessary add-ons for each and every pump, and the specs of cooler and motor are dependent on various doing work situations. The pumps can be employed individually or in series, or in combinations with liquid ring vacuum pumps and Roots vacuum pumps to accomplish increased vacuum to meet a variety of procedure requirements.
Major attributes
one. When utilised by itself, the operating vacuum can reach 150 mbar in direct discharge to atmosphere.
two. Multi-phase tandem or tandem with other backing pumps can reach medium vacuum.
3. Specific construction design ensures that the pump will not overheat and overload when operating at substantial differential strain and large compression ratio.
4. Tri-Lobe profile and high precision machining make sure easy and peaceful procedure.
5. Pumping efficiency, sound, vibration and other key performances are a lot improved than the standard two-lobe pump.
6. An optional superior balanced mechanical seal can make the pump sealing functionality more dependable than the traditional lip seal.
seven. The pump housing is oil-cost-free construction, which is suitable for pumping out common air and different special gases.
8. When compared with other mechanical vacuum pumps, the energy-conserving is up to 20%.
Product Parameters
| Type | Nominal pumping pace(50Hz) | Final strain | Nominal motor ranking (50Hz) | Nominal motor speed (50Hz) | Suction Connection size | Discharge Connection dimension | Maximum cooling water required |
Weight (With out Motor) |
| L/s | Pa | Kw | rpm | mm | mm | L/h | Kg | |
| ZJTQ-one hundred fifty | one hundred fifty | 15000 | three~18.five | 2900 | eighty | eighty | 3500 | 350 |
| ZJTQ-300 | 300 | 15000 | 5.5~37 | 2900 | one hundred twenty five | 125 | 6000 | 350 |
| ZJTQ-600 | 600 | 15000 | 7.5~75 | 1460 | 250 | two hundred | 9000 | 650 |
| ZJTQ-1200 | 1200 | 15000 | eleven~132 | 1470 | three hundred | 250 | 15000 | 1200 |
| ZJTQ-2500 | 2500 | 15000 | 22~280 | 980 | 350 | 350 | 28000 | 2300 |
| ZJTQ-3750 | 3750 | 15000 | thirty~four hundred | 1470 | 350 | 350 | 35000 | 2300 |
Be aware: The motor energy and cooler surface location are identified by the working differential force, and various motors and coolers can be configured for distinct differential pressures.
Pressure diagram
Dimension
| Model | DN | DNI | A | A] | A2 | A3 | B | B1 | B2 | H | H1 | H2 | Φ |
| ZJTQ-one hundred fifty | eighty | 80 | 554 | 281 | 55 | 132 | 358 | 300 | 210 | 340 | one hundred seventy | 20 | 32 |
| ZJTQ-three hundred | one hundred twenty five | one hundred twenty five | 652 | 325 | sixty | 185 | 428 | 360 | 240 | 405 | 215 | 25 | 42 |
| ZJTQ-600 | 250 | 250 | 965 | 492 | ninety | 296 | 678 | 560 | 370 | 630 | 210 | fifty | sixty |
| ZJTQ-1200 | 300 | 300 | 1236 | 642 | 117 | 440 | 770 | 650 | 450 | 680 | 230 | fifty | eighty five |
| ZJTQ-2500 | 350 | three hundred | 1465 | 763 | 128 | 616 | 942 | 730 | 612 | 880 | 415 | 65 | 90 |
| ZJTQ-3750 | four hundred | 350 | 1730 | 925 | a hundred thirty | 820 | 980 | 800 | 600 | 880 | 265 | 70 | one zero five |
FAQ
Q: What information ought to I supply for an inquiry?
A: You can inquire based mostly on the product directly, but it is constantly advisable that you make contact with us so that we can support you to examine if the pump is the most appropriate for your software.
Q: Can you make a customized vacuum pump?
A: Yes, we can do some particular patterns to fulfill customer programs. This sort of as customized sealing systems, speical surface remedy can be used for roots vacuum pump and screw vacuum pump. Make sure you make contact with us if you have particular requirements.
Q: I have difficulties with our vacuum pumps or vacuum systems, can you offer some assist?
A: We have software and design and style engineers with far more than 30 several years of encounter in vacuum programs in distinct industries and assist a whole lot of customers solve their problems, this sort of as leakage concerns, strength-saving solutions, more setting-friendly vacuum systems, and so on. Remember to get in touch with us and we’ll be quite happy if we can offer any aid to your vacuum technique.
Q: Can you layout and make customized vacuum methods?
A: Yes, we are great for this.
Q: What is your MOQ?
A: 1 piece or 1 set.
Q: How about your shipping and delivery time?
A: 5-ten functioning times for the common vacuum pump if the quantity is underneath 20 items, twenty-thirty operating days for the conventional vacuum method with significantly less than 5 sets. For more quantity or special demands, please get in touch with us to verify the direct time.
Q: What are your payment terms?
A: By T/T, 50% progress payment/deposit and 50% compensated prior to shipment.
Q: How about the guarantee?
A: We offer you 1-12 months warranty (except for the wearing parts).
Q: How about the support?
A: We provide remote video clip technological support. We can send the provider engineer to the website for some unique requirements.
|
US $6,900-7,400 / Piece | |
1 Piece (Min. Order) |
###
| After-sales Service: | Online Video Instruction |
|---|---|
| Warranty: | 1 Year |
| Nominal Pumping Speed(50Hz): | 300 L/S |
| Ultimate Pressure: | 15000 PA |
| Nominal Motor Rating(50Hz): | 5.5~37 Kw |
| Nominal Motor Speed(50Hz): | 2900 Rpm |
###
| Type | Nominal pumping speed(50Hz) | Ultimate pressure | Nominal motor rating (50Hz) | Nominal motor speed (50Hz) | Suction Connection size | Discharge Connection size | Maximum cooling water required |
Weight (Without Motor) |
| L/s | Pa | Kw | rpm | mm | mm | L/h | Kg | |
| ZJTQ-150 | 150 | 15000 | 3~18.5 | 2900 | 80 | 80 | 3500 | 350 |
| ZJTQ-300 | 300 | 15000 | 5.5~37 | 2900 | 125 | 125 | 6000 | 350 |
| ZJTQ-600 | 600 | 15000 | 7.5~75 | 1460 | 250 | 200 | 9000 | 650 |
| ZJTQ-1200 | 1200 | 15000 | 11~132 | 1470 | 300 | 250 | 15000 | 1200 |
| ZJTQ-2500 | 2500 | 15000 | 22~280 | 980 | 350 | 350 | 28000 | 2300 |
| ZJTQ-3750 | 3750 | 15000 | 30~400 | 1470 | 350 | 350 | 35000 | 2300 |
###
| Model | DN | DNI | A | A] | A2 | A3 | B | B1 | B2 | H | H1 | H2 | Φ |
| ZJTQ-150 | 80 | 80 | 554 | 281 | 55 | 132 | 358 | 300 | 210 | 340 | 170 | 20 | 32 |
| ZJTQ-300 | 125 | 125 | 652 | 325 | 60 | 185 | 428 | 360 | 240 | 405 | 215 | 25 | 42 |
| ZJTQ-600 | 250 | 250 | 965 | 492 | 90 | 296 | 678 | 560 | 370 | 630 | 210 | 50 | 60 |
| ZJTQ-1200 | 300 | 300 | 1236 | 642 | 117 | 440 | 770 | 650 | 450 | 680 | 230 | 50 | 85 |
| ZJTQ-2500 | 350 | 300 | 1465 | 763 | 128 | 616 | 942 | 730 | 612 | 880 | 415 | 65 | 90 |
| ZJTQ-3750 | 400 | 350 | 1730 | 925 | 130 | 820 | 980 | 800 | 600 | 880 | 265 | 70 | 105 |
|
US $6,900-7,400 / Piece | |
1 Piece (Min. Order) |
###
| After-sales Service: | Online Video Instruction |
|---|---|
| Warranty: | 1 Year |
| Nominal Pumping Speed(50Hz): | 300 L/S |
| Ultimate Pressure: | 15000 PA |
| Nominal Motor Rating(50Hz): | 5.5~37 Kw |
| Nominal Motor Speed(50Hz): | 2900 Rpm |
###
| Type | Nominal pumping speed(50Hz) | Ultimate pressure | Nominal motor rating (50Hz) | Nominal motor speed (50Hz) | Suction Connection size | Discharge Connection size | Maximum cooling water required |
Weight (Without Motor) |
| L/s | Pa | Kw | rpm | mm | mm | L/h | Kg | |
| ZJTQ-150 | 150 | 15000 | 3~18.5 | 2900 | 80 | 80 | 3500 | 350 |
| ZJTQ-300 | 300 | 15000 | 5.5~37 | 2900 | 125 | 125 | 6000 | 350 |
| ZJTQ-600 | 600 | 15000 | 7.5~75 | 1460 | 250 | 200 | 9000 | 650 |
| ZJTQ-1200 | 1200 | 15000 | 11~132 | 1470 | 300 | 250 | 15000 | 1200 |
| ZJTQ-2500 | 2500 | 15000 | 22~280 | 980 | 350 | 350 | 28000 | 2300 |
| ZJTQ-3750 | 3750 | 15000 | 30~400 | 1470 | 350 | 350 | 35000 | 2300 |
###
| Model | DN | DNI | A | A] | A2 | A3 | B | B1 | B2 | H | H1 | H2 | Φ |
| ZJTQ-150 | 80 | 80 | 554 | 281 | 55 | 132 | 358 | 300 | 210 | 340 | 170 | 20 | 32 |
| ZJTQ-300 | 125 | 125 | 652 | 325 | 60 | 185 | 428 | 360 | 240 | 405 | 215 | 25 | 42 |
| ZJTQ-600 | 250 | 250 | 965 | 492 | 90 | 296 | 678 | 560 | 370 | 630 | 210 | 50 | 60 |
| ZJTQ-1200 | 300 | 300 | 1236 | 642 | 117 | 440 | 770 | 650 | 450 | 680 | 230 | 50 | 85 |
| ZJTQ-2500 | 350 | 300 | 1465 | 763 | 128 | 616 | 942 | 730 | 612 | 880 | 415 | 65 | 90 |
| ZJTQ-3750 | 400 | 350 | 1730 | 925 | 130 | 820 | 980 | 800 | 600 | 880 | 265 | 70 | 105 |
What is a sprocket?
A backlash sprocket is a sprocket with multiple teeth. The teeth are arranged at different intervals on the outer circumference of the sprocket. The bottoms of the tooth gaps are arcuate and connect opposing faces of adjacent teeth.
The backlash diameter on the backlash sprocket is larger than the diameter of the ISO tooth profile. This allows the rollers to engage the front surfaces of the teeth without causing the teeth to disengage. The result is reduced shock and noise.
as the picture shows. as the picture shows. As shown in FIG. 2, the sprocket 11 has a front surface (11a) and a rear surface (12b). The teeth are connected by a line extending from the center of rotation O of the sprocket to the center of the tooth gap bottom (13). The tooth surface on the sprocket is a convex arc of equal radius. The radius of re12a and re12b is larger than re8 of ISO tooth profile.
In addition to the tooth pitch of the sprockets, ISO sprockets have standard chains. This chain is defined as ISO 606 1994 (E). The sprocket pitch line is pc. The height of the tooth head (ha) is measured from the tooth pitch polygon.
Typically, the sprocket is secured to the shaft using one or more set screws. This means that it must be able to accommodate the keyway. To determine how much space is left, the outside diameter of the sprocket must be at least 10% larger than the pitch diameter of the shaft.
The gap tooth sprocket system provides extra precision for chain alignment. Its teeth are higher than ISO teeth.
ISO sprocket uniformity
ISO sprocket standard 606 specifies sprocket compliance for most of Europe. This standard specifies large spacings, measured in sixteenths of an inch, and expressed in metric units. It was developed before the American chain and was limited by the materials available. To ensure consistency, the ISO outer plate uses a chain size one step larger than the chain size required for the application. This results in a heavier chain. ISO sprockets are available in single, double and triple chain versions.
ANSI and ISO sprockets are interchangeable. They are based on mathematical themes and have a clear design. ISO sprockets are usually smaller than ANSI sprockets. They are also denoted with the suffix “B” to denote their chain number.
metal sprocket
Sintered metal sprocket is a metal sprocket with high mechanical properties. The tensile strength of the sprocket can reach more than 700 MPa, and the Charpy impact strength is 20 J/cm2. It’s also durable and wear-resistant.
This sprocket is used for high load applications. Its teeth are made of metal and flame-hardened. The edges of the teeth are slightly softer than the rest of the teeth. The edges of the sprockets wear out when bitten.
The sprocket is a toothed profiled wheel. It is different from a pulley that meshes with a belt. On the other hand, timing pulleys are used with toothed belts. Sprockets and chain mechanisms were also used in early cars.
Another common use for metal sprockets is in movie projectors, where they punch holes in the film. They are also used as the paper feed mechanism in some computer printers. There are several types of sprockets. Some sprockets are lightweight, while others are heavy and have flanges to keep the timing belt centered.
plastic sprocket
Plastic sprockets are ideal for a variety of applications. They reduce noise and reduce chain wear. Their compressibility also increases their overall load capacity. Some of their uses include dust-free environments, food applications and quieter chain drives. They can also be customized to your specifications.
One embodiment of the present invention includes a plastic sprocket having a co-injected outer shell and an inner core of a second material. This allows the sprocket to combine the advantages of both materials. This makes the sprocket easier to clean and lighter in weight.
There are many different materials available for plastic sprockets. One of the most popular is Duro-Glide(r) UHMW-PE. However, there are other materials that are better suited for certain applications. For example, polyurethane sprockets have excellent wear resistance, but may be too flexible to drive a belt. Therefore, it is important to find the right combination of materials to get the job done.
If you are in the market for a plastic sprocket, contact a reputable manufacturer. These companies offer a wide range of standard and custom sizes to meet any of your needs. They can also offer czpt delivery for quick turnaround. They specialize in custom manuManufactured and certified to ISO 9001:2000.
Imao offers sprockets in a variety of different materials. They are available in a variety of sizes and feature either molded ball bearings or fiberglass reinforced bearings. These sprockets are designed for sawmills and other light duty applications. They are also resilient and can be used in any type of sawmill.
Aluminum sprocket
Aluminum sprockets save weight and increase the speed of the bike. The material used to make them is 7075-T6 aerospace grade aluminum, which makes them lightweight and durable. The teeth are also formed on the hobbing machine so they fit perfectly and reduce friction. They also have an anodized color finish for added strength and durability.
The size you need depends on your wheel setup and the type of terrain you ride. Larger sprockets are better for slower terrain and provide more torque. However, larger sprockets tend to reduce top speed, so you may need to adjust accordingly. If you have an OEM 19″ or 16″ setup, 52t/54t sprockets are the most recommended option. 7075-T6 aluminum also reduces weight and rolling mass.
editor by czh2022-12-01