Sand powder flexible screw conveyor
Tuesday February-24 2026  11:00:22
Sand powder flexible screw conveyor is a continuous conveying device used to transport sand and powder bulk materials. It consists of flexible screw blades, a flexible conveying pipe, a drive motor, a reducer, an inlet, and an outlet. It employs a shaftless flexible screw structure, allowing it to bend and rotate within the pipe, making it suitable for conveying sand and powder materials with moderate flowability, fine particles, dryness, looseness, and no stickiness or caking.

Common pipe diameters for sand powder flexible screw conveyors include 100mm, 120mm, and 160mm. The screw size and pipe diameter are matched to ensure smoother material transport. Conveying lengths range from 3 meters to 12 meters and can be customized to site conditions. The hourly conveying capacity ranges from 3 tons to 30 tons, varying with pipe diameter, rotational speed, and inclination angle. It can convey horizontally, inclined, and even vertically, with a maximum inclination angle of 90°. The matching motor power ranges from 1.5kW to 5.5kW. Parts of the equipment that come into contact with materials are mostly made of carbon steel or stainless steel. The drive system primarily uses direct-drive motors or a motor paired with a reducer, enabling multi-directional conveying in a closed environment.
Advantages of Sand Powder Flexible Screw Conveyors
Sand powder flexible screw conveyors are well-suited to the characteristics of sand powder. Sand powder particles are fine and have low density, making them prone to dust accumulation and prone to clumping when damp. This equipment uses a fully enclosed pipeline conveying system, preventing dust from escaping and resulting in a cleaner work environment and less material waste. Its flexible screw operates smoothly, minimizing impact and friction on the sand powder, preventing particle breakage and material stratification, and maintaining the original coarseness and proportions of the sand powder. The absence of a central shaft and intermediate hanger bearings reduces material adhesion and clogging, making it suitable for sand powders with moderate flowability. The enclosed structure also blocks external moisture and debris, keeping the sand powder dry and loose, preventing clumping.

What types of sand powder flexible screw conveyors are available?
Based on installation and usage, sand powder flexible screw conveyors can be divided into mobile, vehicle-mounted, and stationary types. Mobile types are equipped with casters and push handles, are lightweight, and easy to maneuver, making them suitable for construction sites, material yards, and other scenarios requiring short-distance transport between multiple points and frequent relocation. Vehicle-mounted types are directly mounted on trucks or transfer vehicles, moving with them and enabling on-site loading and unloading of sand powder, as well as cross-regional material replenishment and transfer; they are often used in open-air operations such as sand pits and mixing plants. Stationary types are securely bolted to ground foundations or supports, ensuring stable operation and continuous conveying; they are suitable for production lines, silo outlets, mixing equipment, and other scenarios where materials are transported in a fixed location for extended periods. They can also be connected to upstream or downstream equipment to form automated conveyor lines.

Sand Powder Flexible Screw Conveyor Parameter Table
| Parameter Name | Description | Typical Value Range | Unit |
| Inlet Diameter | Diameter of the pipe for material inlet | 50 / 76 / 102 | mm |
| Outlet Diameter | Diameter of the pipe for material outlet | Same as inlet or larger | mm |
| Conveying Capacity | Maximum conveying output per hour | 1 – 15 | t/h |
| Screw Speed | Revolutions per minute of the screw body | 100 – 400 | r/min |
| Conveying Pipe Length | Optional length | 1.5 – 20 | m |
| Maximum Conveying Inclination Angle | Allowable range of inclination angle | 0 – 30 | ° |
| Main Motor Power | Motor power | 0.75 – 5.5 | kW |
| Motor Speed | Motor rated speed | 1400 / 2800 | r/min |
| Voltage | Power supply used | 380 (customizable) | V |
| Shell Material | Material of conveying pipe and casing | Carbon steel / Stainless steel | — |
| Screw Material | Material of screw blades | Carbon steel / Stainless steel | — |
| Sealing Form | Method for dust and leakage prevention | Flange seal / with sealing ring | — |
| Allowable Maximum Particle Size | Maximum particle size of material | ≤ 5 | mm |
| Operating Temperature | Ambient and material temperature | -20 – 80 | °C |
| Weight | Self-weight of equipment (varies with length) | 80 – 500 | kg |
Sand Powder Flexible Screw Conveyor Application Scenarios
Sand powder flexible screw conveyors can adapt to many complex working environments. In the building materials industry, it can transport sand powder at dry-mix mortar plants, concrete mixing plants, and wall material factories. In infrastructure projects, it can handle the transfer and loading of sand powder for construction sites, roads, and bridges. During sand and gravel processing, it can also transport finished sand powder and graded powder. In the chemical and metallurgical industries, it can also transport similar powdered raw materials and auxiliary materials. The equipment can operate indoors, outdoors, in confined spaces, and in multi-level layouts, meeting various conveying requirements such as horizontal, inclined, and vertical conveying. It reduces manual handling workload and facilitates on-site production management.

The Sand Powder Flexible Screw Conveyor is designed according to the material characteristics of sand powder, with a reasonable structural design and a wide variety of specifications and types. It is tailored to the characteristics of fine sand powder particles, easy dust generation, and susceptibility to moisture. It adopts a closed conveying system, ensuring a clean and stable material transport process, and allows for flexible path adjustment. Common problems in traditional conveying methods, such as dust generation, material blockage, material damage, and layout limitations, can be solved with this equipment. The equipment is easy to operate and has low daily maintenance costs. It can be used in all stages of sand powder production, processing, transportation and application, and can also improve the working environment and provide equipment support for the sand powder processing process.




