China Professional 304ss Vertical Efficient Worm Discharger wholesaler

Item Description

Specification of Horizontal Screw Conveyor/Screw Feeder/Screw Auger/With Shaft or whiout Shaft/U groove or Tube kind

The screw feeder utilizes spiral blades to push the dried powder and tiny granular resources ahead to obtain the influence of conveying. It is commonly used in metallurgy, building supplies, chemical, foods and other industries.

In accordance to the conveying strategy, there are the screw conveyor with shaft and screw conveyor with out shaft.

For the screw conveyor with no shaft, it is suggested to be placed horizontally with an inclination angle <20°.It is suitable for the sticky, entangled and massive materials such as sludge and domestic garbage.

According to the form, there are the tube kind screw conveyor and U groove variety screw conveyor.

Application of Screw Conveyor                                                              
Applicable resources: various dry powder supplies, granular supplies, crushed materials, flake materials, organic particles, etc.

Software regions: chemical plants, plastic vegetation, foods vegetation, pharmaceutical plants, development, metallurgy, agriculture, and so on.


  1. Practical and straightforward procedure
  2. Broad application
  3. Energy saving and reduce sound
  4. Extended provider existence
  5. Easy routine maintenance

Technological Parameter                                                                                 

1. The screw can be custom-made according to the necessary peak and the conveying potential.

2. Shipping and delivery time:fifteen—20 working days

3. Materials: If you use it in the foodstuff or medical market or have the necessity in the sanitation or anti-corrosion, the stainless metal is advisable. If you need were resistance, the higher manganese steel or large chromium metal is recommend. If there is no any prerequisite, the carbon steel is suggest.

4. The materials hopper: The square or the spherical for your decision. The size, width and the diameter of the round can be custom-made in accordance to the necessity of buyer. Or you can decide on the vibration screen.

five. Discharge outlet: It can use the flange, fabric bag ,hanging bag and so on.

6. Power of motor: After you have confirmed the material to be conveyed, inclination angle, top and duration, the pace control motor or the anti-explosion motor can be selected.

Pre-sale and soon after-sale service                                                                 
Pre-sale support:
1.Your inquiry will be replied within 6 hours.
2.Help you to decide on ideal product
3.Design completely according to your needs
After-sale support:
1.Give 12 months guarantee interval and you will have our engineering assistance without end
2.Engineering accessible to supply the provider to your machinery overseas

Usually asked inquiries                                                                    
1.Q:You should notify us the following details so that we can make you the supply
  What do you transport :_____
  Shipping length: _____

two.Q: Can you provide us the comprehensive drawing?
Yes, we can provide you the drawing after have manufactured the prepayment.

three.Q: Are you a company or a trader?
We’re a professional and experienced manufacturer located in ZheJiang .

four.Q: Can you settle for OEM?
Sure, we can create the machinery totally in accordance to your design common.

5Q: How about the supply time?
Generally ten-twenty working days soon after prepayment, and we assure we will make the delivery as soon as we can.

Speak to us                                                                                               



Worm Shafts and Gearboxes

If you have a gearbox, you might be pondering what the ideal Worm Shaft is for your application. There are many issues to take into account, like the Concave form, Number of threads, and Lubrication. This report will explain each and every aspect and support you select the appropriate Worm Shaft for your gearbox. There are numerous options offered on the industry, so will not hesitate to shop about. If you are new to the globe of gearboxes, study on to find out far more about this common type of gearbox.
worm shaft

Concave condition

The geometry of a worm equipment differs noticeably depending on its manufacturer and its intended use. Early worms had a standard profile that resembled a screw thread and could be chased on a lathe. Later, tools with a straight sided g-angle have been developed to create threads that ended up parallel to the worm’s axis. Grinding was also designed to boost the complete of worm threads and minimize distortions that take place with hardening.
To decide on a worm with the proper geometry, the diameter of the worm equipment should be in the very same device as the worm’s shaft. Once the basic profile of the worm gear is decided, the worm gear tooth can be specified. The calculation also involves an angle for the worm shaft to avoid it from overheating. The angle of the worm shaft should be as close to the vertical axis as feasible.
Double-enveloping worm gears, on the other hand, do not have a throat about the worm. They are helical gears with a straight worm shaft. Because the tooth of the worm are in speak to with each and every other, they create considerable friction. Unlike double-enveloping worm gears, non-throated worm gears are a lot more compact and can take care of smaller sized masses. They are also simple to manufacture.
The worm gears of different companies provide numerous positive aspects. For occasion, worm gears are a single of the most efficient methods to increase torque, whilst reduce-good quality resources like bronze are hard to lubricate. Worm gears also have a lower failure price because they allow for significant leeway in the design and style approach. Even with the distinctions amongst the two standards, the total functionality of a worm equipment program is the very same.
The cone-shaped worm is an additional kind. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a beneficial utility model. Worms with this condition have much more than a few contacts at the very same time, which signifies they can minimize a big diameter with no extreme put on. It is also a relatively reduced-price model.
worm shaft

Thread sample

A excellent worm equipment needs a best thread pattern. There are a couple of important parameters that figure out how great a thread sample is. Firstly, the threading sample must be ACME-threaded. If this is not achievable, the thread need to be manufactured with straight sides. Then, the linear pitch of the “worm” need to be the identical as the circular pitch of the corresponding worm wheel. In easy phrases, this indicates the pitch of the “worm” is the identical as the round pitch of the worm wheel. A fast-alter gearbox is usually used with this type of worm equipment. Alternatively, lead-screw modify gears are employed rather of a quick-change gear box. The pitch of a worm equipment equals the helix angle of a screw.
A worm gear’s axial pitch should match the round pitch of a gear with a greater axial pitch. The circular pitch is the distance amongst the details of tooth on the worm, while the axial pitch is the distance between the worm’s teeth. An additional issue is the worm’s guide angle. The angle amongst the pitch cylinder and worm shaft is referred to as its direct angle, and the increased the guide angle, the increased the performance of a equipment.
Worm gear tooth geometry varies based on the manufacturer and intended use. In early worms, threading resembled the thread on a screw, and was very easily chased making use of a lathe. Later on, grinding enhanced worm thread finishes and minimized distortions from hardening. As a outcome, today, most worm gears have a thread sample corresponding to their measurement. When picking a worm gear, make positive to verify for the variety of threads just before buying it.
A worm gear’s threading is critical in its procedure. Worm teeth are typically cylindrical, and are arranged in a sample related to screw or nut threads. Worm teeth are typically formed on an axis of perpendicular when compared to their parallel counterparts. Since of this, they have better torque than their spur gear counterparts. Furthermore, the gearing has a reduced output velocity and large torque.

Amount of threads

Various types of worm gears use different figures of threads on their planetary gears. A solitary threaded worm gear need to not be utilised with a double-threaded worm. A single-threaded worm equipment need to be used with a single-threaded worm. Single-threaded worms are much more powerful for speed reduction than double-threaded kinds.
The variety of threads on a worm’s shaft is a ratio that compares the pitch diameter and quantity of enamel. In basic, worms have 1,2,4 threads, but some have three, 5, or six. Counting thread commences can help you figure out the quantity of threads on a worm. A one-threaded worm has less threads than a multiple-threaded worm, but a multi-threaded worm will have more threads than a mono-threaded planetary gear.
To evaluate the quantity of threads on a worm shaft, a little fixture with two floor faces is utilised. The worm must be taken off from its housing so that the finished thread area can be inspected. Following determining the variety of threads, basic measurements of the worm’s outside diameter and thread depth are taken. After the worm has been accounted for, a solid of the tooth room is manufactured utilizing epoxy materials. The casting is moulded in between the two tooth flanks. The V-block fixture rests from the outside the house diameter of the worm.
The circular pitch of a worm and its axial pitch have to match the round pitch of a greater equipment. The axial pitch of a worm is the length among the details of the enamel on a worm’s pitch diameter. The lead of a thread is the distance a thread travels in a single revolution. The lead angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s pace transmission ratio is dependent on the number of threads. A worm equipment with a higher ratio can be easily lowered in a single step by employing a established of worm gears. However, a multi-thread worm will have more than two threads. The worm equipment is also more efficient than single-threaded gears. And a worm gear with a high ratio will permit the motor to be utilized in a selection of applications.
worm shaft


The lubrication of a worm gear is especially tough, owing to its friction and higher sliding make contact with pressure. The good news is, there are a number of options for lubricants, this kind of as compounded oils. Compounded oils are mineral-primarily based lubricants formulated with ten % or much more fatty acid, rust and oxidation inhibitors, and other additives. This mixture results in improved lubricity, diminished friction, and decrease sliding put on.
When choosing a lubricant for a worm shaft, make positive the product’s viscosity is right for the type of gearing used. A minimal viscosity will make the gearbox difficult to actuate and rotate. Worm gears also go through a greater sliding movement than rolling movement, so grease have to be in a position to migrate evenly all through the gearbox. Repeated sliding motions will push the grease away from the make contact with zone.
Another thing to consider is the backlash of the gears. Worm gears have substantial equipment ratios, sometimes 300:1. This is crucial for power apps, but is at the very same time inefficient. Worm gears can create warmth in the course of the sliding motion, so a high-good quality lubricant is essential. This kind of lubricant will reduce heat and make certain optimum functionality. The following tips will assist you pick the proper lubricant for your worm equipment.
In minimal-pace apps, a grease lubricant may be adequate. In greater-speed programs, it is very best to implement a synthetic lubricant to prevent premature failure and tooth put on. In each situations, lubricant decision depends on the tangential and rotational speed. It is critical to adhere to manufacturer’s recommendations with regards to the decision of lubricant. But don’t forget that lubricant option is not an easy job.

China Professional 304ss Vertical Efficient Worm Discharger     wholesaler China Professional 304ss Vertical Efficient Worm Discharger     wholesaler