Your location is: Home > Products Center > Inclined Screw Conveyor
  • inclined screw conveyorinclined screw conveyor
  • stainless steelstainless steel inclined screw conveyor
  • mobile inclined screw conveyorportable inclined screw conveyor
  • mini inclined screw conveyorsmall inclined screw conveyor
  • inclined screw conveyor with siloinclined screw conveyor with hopper
  • horizontal picture
  • vertical picture
  • oncrete auger conveyor picture
  • mini auger conveyor picture
  • stainless steel picture

Inclined Screw Conveyor

Typically runs from slightly above horizontal to 45 degrees from horizontal for conveying powder or granules from low to high

CE ISO Registered trademark

Price:$500.00 - $20,000.00/Set

Consult now and enjoy a 10% discount

Chat Now

Send Email

0-60° conveying Angle is adjustable Does not take up space

Spiral diameter: 100mm-1250mm

Tilt angle: 0-60° Hopper size: 100L

Conveying length: 4-70 meters Conveying height: ≤8 meters

Conveying capacity: 244m³/h

Power Supply: 3p-380V 50-60Hz

Motor power: 7.5KW-11KW

Optional material: carbon steel, stainless steel

Application: It can convey and lift products at the same time, and can directly and automatically convey powder or granular plastic raw materials to silos or other equipment

Commitment:Free Shipping/5 Days Delivery/30-Day Returns/Support Customization

What is Inclined Screw Conveyor?

Inclined screw conveyors typically operate from slightly above the horizontal position to 45-degrees from the horizontal position

Inclined screw conveyor typically operates from slightly above the horizontal position to 45 degrees from the horizontal position. It can complete conveying, mixing paint, quantitative ingredients, etc., and is mostly used in conjunction with filling and packaging machines as a completed powder packaging machine system. The inlet and outlet of the inclined screw conveyor can be made into the required inclination angle according to the work site, and can be linked and fixed with other supporting equipment.

Inclined screw conveyors are designed with an incline that allows for an inclination angle of 60 degrees in height and take up less space than horizontal screw conveyors. The most common style of inclined screw conveyors is when the feeder is attached or integrated with a hopper, silo or silo This design is the most economical when used, and allows the inclined screw feeder to meter and deliver flow from the inlet to the desired height, but requires more horsepower to feed the product upwards.

What is maximum angle for Inclined Screw Conveyor

Inclination angle of screw conveyor

1. Shaft series

The conveying angle of the shafted tube screw conveyor is about 45°, while the conveying angle of the shafted U-shaped screw conveyor is about 20°-30°.

2. Shaftless series

The conveying angle of the shaftless tubular screw conveyor is about 30°, while the conveying angle of the shaftless U-shaped screw conveyor is about 20°-30°.

The larger the angle of the inclined screw conveyor, the worse the conveying effect (there is no effect within 15°, and the conveying efficiency will decrease by 15% for every 5° increase). At this time, the following items need to be considered:

More horsepower is required for inclined screw conveyors: This is due to both lifting the product and "reconveying" product that falls back.

Hangers should be eliminated: They create a "dead flow" area that is emphasized with inclined conveyors. This often results in the use of longer screws which require their own design considerations.

For materials with poor fluidity, the inclination angle can reach 50°, but to convey materials in this way, a certain pressure needs to be applied to the feed inlet, and the added materials are squeezed into the conveying main body, and the bearing at the bottom of the equipment needs to bear huge pressure , The bearing is easily damaged.

Working Priciple of Inclined Screw Conveyor

The inclined screw conveyor uses the motor to drive the screw to rotate through the reducer, and through the rotation, the material is pushed along the fixed casing to carry out the conveying work, so as to be conveyed to the predetermined position. According to various uses, installation locations, models, and conveying methods, the installation locations of the reducer and motor can be diversified and unlimited.

Application of Inclined Screw Conveyor

Application industry

The inclined screw conveyor is suitable for inclined conveying of powder, granules and small block materials. The inclined angle is generally not more than 90°. It is used to convey and lift bulk materials from one layer to another. It can be directly connected and fixed with its supporting equipment. Bulk materials from bulk bags, hoppers or silos to overhead processes can also be metered via screw conveyors while conveying and lifting product.

Common industry uses:

Industry Real Use Industry Real Use
Foundry Sand treatment Salt Mine Mix, convey, mix
Brewery Grain and Hops Handling/Storage Steel Mill Dust and storage
Wooden Waste and sawdust Sewage Treatment Plant Sludge conveying and storage
Paper Pulp and Wood Chip Handling Chemical Plant Prevent pollution
Plaster Wallboard Gypsum Conveying Feed and Grain Various applications
Leading Lead recycling Render Widely used, rinse well
Food Handling Various food grade applications Glass Factory Conveying and metering

Related Videos

Conveying pulverized coal

Conveying grain

Conveying wheat bran (with screening and dust removal equipment)

Benefits of Inclined Screw Conveyor

Large inclination conveying

0-90 degree inclination angle, suitable for connecting with hopper, silo or silo to achieve the purpose of conveying and lifting.

High conveying efficiency

There can be multiple inlets and outlets, and the bulk materials can be transported and distributed to various positions as required, and the process arrangement can be customized according to customer needs.

Uniform feeding

In the process of conveying materials, blocking and jamming are not easy to occur, and the feeding is uniform. Sliding gates or valves can be added to control the flow in and out of the screw conveyor.

High speed

Higher screw speed, which increases the forward momentum of the product and reduces back-off, especially for granular, free-flowing products such as dry sugar, refined sugar.

Low cost

Product can be conveyed and lifted at the same time, it covers two operations with one piece of equipment, thus saving space and reducing downtime, maintenance costs, etc.


The moving wheels can be installed under the support frame, providing flexibility to meet the installation requirements of most applications and moving systems, allowing for in-plant flexibility.

Structural Characteristics of Inclined Screw Conveyor

Structural Characteristics

1. The inclined screw conveyor produced by Dahan Machinery is a non-foundation fixed type. It is connected in turn by the spiral body of the casing of the drive motor reducer and combined into a whole.

2. The shaft end is connected with the involute spline (or rectangular spline) of the rotating body, which is easy to assemble and disassemble, and has a large bearing capacity, safety and reliability.

3. The outer casing of the conveyor is connected by steel pipes through flanges to form a whole, so its overall rigidity is good, so that the working position and working posture can be selected at will, and can be disassembled and moved at will.

4. The inlet and outlet of the material can be made into the required inclination angle according to the situation of the work site, and the connection with other supporting equipment is fixed.

5. The helical blades of this machine are integrally connected blades rolled by disc-shaped steel strips, with high helicoidal degree, helical pitch size of inner hole and outer diameter, and good conveying conditions. (If the single-piece welded blade meets the above requirements) .

Technical Parameters of Inclined Screw Conveyor

structure of inclined screw conveyor

LS Model 100 160 200 250 315 400 500 630 800 1000 1250
GX Model     200 250 300 400 500        
Spiral diameter(mm) 100 160 200 250 315 400 500 630 800 1000 1250
Pitch(mm) 100 160 200 250 315 355 400 450 500 560 630
Rotating speed(r/min) 140 120 90 90 75 75 60 60 45 35 30
Throughput QΦ=0.33(m3/h) 2.2 7.6 11 22 36.4 66.1 93.1 160 223 304 458
Power Pd 1=10m(KW) 1.1 1.5 2.2 2.4 3.2 5.1 4.1 8.6 12 16 24.4
Power Pd 1=30m(KW) 1.6 2.8 3.2 5.3 8.4 11 15.3 25.9 36 48 73.3
Rotating speed(r/min) 120 90 75 75 60 60 45 45 35 30 20
Throughput QΦ=0.33(m3/h) 1.9 5.7 18 18 29.1 52.9 69.8 125 174 261 305
Power Pd 1=10m(KW) 1.0 1.3 2.1 2.1 2.9 4.1 4.7 6.8 9.4 14.1 16.5
Power Pd 1=30m(KW) 1.5 2.3 4.5 4.5 7 8.9 11.6 20.4 28.3 42.2 49.5
Rotating speed(r/min) 90 75 60 60 45 45 35 35 30 20 16
Throughput QΦ=0.33(m3/h) 1.4 4.8 15 15 21.8 39.6 54.3 97 149 174 244
Power Pd 1=10m(KW) 0.9 1.2 1.9 1.9 2.5 3.4 4.3 5.4 8.1 9.5 13.3
Power Pd 1=30m(KW) 1.2 2.2 3.8 3.8 5.4 6.8 9.2 16 24.4 28.6 39.9
Rotating speed(r/min) 75 60 45 45 35 35 30 30 20 16 13
Throughput QΦ=0.33(m3/h) 1.2 3.8 11 11 17 31.7 46.5 73.0 99.3 139 199
Power Pd 1=10m(KW) 0.75 1.1 1.6 1.6 2.1 3.1 3.7 4.6 5.7 7.7 11
Power Pd 1=30m(KW) 1.1 1.8 3.4 3.4 4.4 5.6 8 14 16.7 23.2 33

Selection Notes:

1. Material characteristics: material name, material particle size, whether the material has hardness, whether the material has viscosity, material temperature, etc.;

2. Determine the oblique angle

3. Determine the material: 1) Stainless steel material - stainless steel material can also be divided into 304, 310, 310L, 316, 316L models (all models can be made of stainless steel, but when the conveying distance is long, the surface area increases If the difficulty of grinding increases, sandblasting is generally selected, and it will not be as bright as common stainless steel visually, but the quality will not be affected). 2) Carbon steel material—Carbon steel material is a commonly used material for inclined rotary conveyors. This material has a low cost and can also realize the normal transportation of materials.

4. Rotation speed selection "The rotation speed of the inclined screw conveyor is generally 1450r/min. The rotation speed of the inclined screw conveyor can be adjusted by itself. The larger the angle, the greater the required rotation speed.

5. Determine the size: such as pipe diameter, length, length of the discharge port, distance from the discharge port to the ground, height of the bracket, width of the hopper, etc.

Note: The rotation speed of the screw conveyor cannot be infinite. When the rotation speed reaches a certain limit, the material will be thrown outward due to excessive centrifugal force, resulting in failure of the conveying process. The larger the angle of the screw conveyor, the same speed ratio and type of conveyor, the conveying capacity will be weakened.

Design and Construction Features to Consider for Inclined Screw Conveyors

1. Incline Up to 10-Degrees: At an inclination of up to 10°, the loss of conveying efficiency is minimal. Screw conveyors with U-shaped grooves and full-pitch screws are sufficient for most applications. The efficiency loss can be overcome by increasing the speed of the screw conveyor, increasing the diameter of the screw conveyor or reducing the pitch of the propeller.

2. Incline Between 10 and 20-Degrees: The loss of transmission efficiency is usually between 10 and 40%. Screw conveyors with U-shaped grooves and 2/3-pitch spirals are sufficient for most applications. The loss of efficiency can also be overcome by increasing the speed or diameter of the screw conveyor. Additional power is required to overcome gravity and loose material falling.

3. Incline Between 20 and 30-Degrees: At an inclination of up to 30 degrees, the loss of transmission efficiency is usually between 10% and 70%. For most applications, it is recommended to use a screw conveyor with a tubular casing and a reducing screw (1/2 or 2/3). The efficiency loss can also be overcome by increasing the speed or diameter of the screw conveyor. Additional power is required to overcome gravity and loose material falling.

4. Incline Between 30 and 45-Degrees: At an inclination of up to 45 degrees, the loss of conveying efficiency is usually between 30% and 90%. For most applications, it is recommended to use a screw conveyor with a tubular casing and a reducing screw (1/2 or 2/3) and a larger diameter. It is also necessary to increase the speed of the large-incline screw conveyor. Additional power is required to overcome gravity and loose material falling.

Design Calculation

Design and Selection of Inclined Screw Conveyors

product show

The horsepower requirements of an inclined screw conveyor increase with the degree of inclination, requiring additional horsepower to overcome gravity and bulk material fall back. If a certain tilt angle is required, what should be paid attention to when using it? And listen to the manufacturer's analysis:

1. The fluidity of the conveyed product

If the material has good fluidity, it is easy to slide to the feed port during inclined conveying, which cannot meet the conveying requirements. The inclination angle of ordinary screw conveyor is about 45 degrees. If it exceeds this angle, the conveying effect of the material is not ideal. The material with poor fluidity can reach 50 degrees, and the larger inclination angle will also affect the conveying effect of the equipment. At this time, a tubular screw conveyor can be selected. The tubular screw conveyor can be used at 90 degrees, also known as the vertical screw conveyor. However, when conveying materials in this way, it is necessary to apply a certain pressure to the feed port to squeeze the added materials into the conveying body. Moreover, the bearing at the bottom of the equipment needs to bear huge pressure, and the bearing is easily damaged.

Material Name Pulverized Coal Cement Cement Raw Meal Gravel Sound Lime
Material bulk Density 0.6 1.25 1.1 1.3 0.9
Fill Factor φ 0.4 0.28~0.33 0.28~0.33 0.25~0.3 0.35~0.4
Material Resistance Coefficient ω 1.2 2.2 1.8 2.5 3.0

2. Proportion of conveyed products

The specific gravity of the material also has a certain influence on the inclination angle. The material has a large proportion, and the inclination angle can be appropriately increased to make the screw conveyor complete the conveying operation. If the specific gravity of the material is light, it is easy to float in the air during transportation, so it is not recommended to use it.

According to the layout of the user equipment, if the screw conveyor needs to be inclined, the inclination angle is generally about 10 degrees to achieve better conveying effect. The larger the inclination angle, the worse the conveying effect. Therefore, when the user selects, the tilt angle needs to be estimated according to the layout design of the device.

Angle β ≤15° ≤20° ≤30° ≤40° ≤45° ≤50° ≤60° ≤70° ≤80° ≤90°
Inclination factor C 1 0.9 0.8 0.7 0.65 0.7 0.67 0.6 0.53 0.47 0.4

Proof of Solutions for Our Wide Range of Products

Customer site

The inclined screw conveyor generally operates at a certain inclination until 45 degrees, and can feed non-stick powder, granular and small granular materials from storage equipment such as silos to the receiving equipment evenly. The silos and conveying pipes are made of stainless steel. Material (material can be according to customer requirements) to ensure that the raw materials are completely pollution-free during the conveying process. The conveying pipeline adopts a closed design, which can effectively prevent dust and effectively isolate materials with high hygiene requirements or strong odor, with uniform feeding and sealing. Good, no dust pollution and other characteristics.

Inclined Screw Conveyor Manufacturer

Dahan Inclined Screw Conveyor Manufacturer covers design, drawing, modeling, processing, quality inspection, assembly, test machine, painting, delivery, etc. We have machining workshops (lathes, milling machines, boring machines, drilling machines), assembly workshops, painting workshops, warehouses, etc.

The manufacturer will help you select and design according to some parameters such as working conditions, material temperature, material granularity, material corrosivity, material conveying volume, material conveying distance and so on. Reasonable design and selection of conveying capacity, shell material (201, 304, 316), motor ratio power, reducer ratio speed, to meet user needs as the principle.

Inclined screw conveyor manufacturers

online customer service

13s online
customer service

customize solutions

2 days customize

Factory visiting

visiting anytime

dispatch the goods

1-10 days dispatch
the goods


One week
of installation


2 days of

after-sales online

365 days
after-sales online

Project tracking regularly

Project tracking

provide maintenance plan

2 days provide
maintenance plan

Pre-sale service

Sales service

After-sales service

Contact Us


Address:China,Yanjin county forest park gate to the west 1000 meters north road.