鉱山設備ガイド：What Equipment Should You Use for Vertical Conveying of Powder and Granular Materials? A Complete Guide to Hoist Machines (Bucket Elevators)

elevator is a straight-through type, suitable for conveying powdery, granular, and small bulk materials upward, suitable for various usage conditions, and widely used in many industrial sectors. This equipment uses a motor to drive the hopper upward through a chain or belt, loading materials into the hopper from the bottom, lifting it to the top, and then flipping it out to achieve vertical conveying. Why choose the hoist? First, the straight-through structure allows material to enter through the lower feed inlet, be lifted to the upper part via the hopper, and then automatically unload, ensuring a continuous and stable conveying process. Second, the lifting height is large, with a maximum lifting height of 28-32.7m, meeting most industrial vertical conveying needs. Third, the conveying capacity is large, with a maximum capacity of 3-58m³/h, meeting the material conveying requirements of production lines of different scales. Fourth, hopper spacing is reasonable; 500-600mm hopper spacing suits the conveying characteristics of powdery, granular, and small granular materials, reducing material spillage. Fifth, wide application range, widely used in chemical, food, metallurgy, mining, building materials, grain, abrasives, fertilizer, coal, and other industrial sectors. Elevators are mainly used for vertical conveying of granular and powdered materials in industries such as chemical, food, metallurgy, mining, building materials, abrasives, fertilizer, and coal. People who need elevators include equipment procurement and operation departments of chemical plants, food factories, metallurgical plants, mining enterprises, building materials factories, grain processing plants, fertilizer plants, coal enterprises, as well as EPC contractors for bulk material handling production lines, equipment distributors and inventory providers, and overseas industrial project buyers. Under what circumstances should elevators be selected or replaced? When it is necessary to vertically transport powdered, granular, small, and bulk materials upward; When old elevators have low conveying efficiency, severe hopper wear, or high chain breakage or failure rates; When a new bulk material handling production line requires vertical conveying equipment; When export projects require adaptation to overseas voltages and efficient conveying conditions, elevators should be prioritized. How to choose a hoist? Step one: confirm material properties; elevators are suitable for powdery, granular, small, and bulk materials. Step two: confirm hoisting height, selecting a maximum lifting height of 28-32.7m according to process requirements. Step three: confirm conveying capacity, selecting 3-58m³/h according to production line capacity requirements. Step 4: Confirm the hopper spacing, selecting 500-600mm based on material characteristics. Step 5: Confirm motor power, selecting 3-37kW based on conveying capacity and lifting height. Step 6: Confirm the installation foundation, which must be installed on a sturdy concrete foundation or steel structure support, secured with anchor bolts. Step 7: Confirm the connection between feed and discharge ports to ensure smooth material inflow and exit. Step 8: Confirm environmental protection and automation configurations, which can be equipped with dust removal systems and central control systems.

Hoist Specifications and Performance Parameters Table

Model	Maximum Lifting Height (m)	Conveying Capacity (m³/h)	Hopper Spacing (mm)	Motor Power (kW)
Type 150	28	3-8	500	3-7.5
Type 200	31.5	6-15	500	3-7.5
Type 250	30.16	10-25	500	4-11
Type 300	30.16	25-35	500	5.5-15
Type 350	31	19-40	600	7.5-18.5
Type 400	32	35-50	600	7.5-22
Type 450	32.7	42-50	600	7.5-30
Type 500	32.7	58-70	500	11-37

General Technical Parameters Table

Parameter	Specification
Type	Straight-through Hoist (Bucket Elevator)
Applicable Materials	Powdered, granular, small granular bulk materials
Maximum Lifting Height	28–32.7 m
Conveying Capacity	3–58 m³/h
Hopper Spacing	500–600 mm
Motor Power	3–37 kW
Core Advantages	Straight-through structure, high lifting height, large conveying capacity, smooth operation
Applicable Industries	Chemical, food, metallurgy, mining, building materials, grain, abrasives, fertilizers, coal

Dimension Drawing and Key Dimensions

`[Image: /images/hoist-machine-dimension-drawing.webp]`

Material Table

Component	Standard Material	Optional Material	Description
Hopper	Carbon Steel	Stainless Steel, Wear-Resistant Alloy	Core wear part, supports material
Chain/Belt	Carbon Steel	Stainless Steel, Wear-Resistant Alloy	Traction hopper, bears tensile force
Frame	Carbon Steel	Stainless steel	Bears the equipment's own weight and operational load
Drive shaft	40Cr/45# steel	Alloy steel	Quenching and tempering treatment, smooth transmission
Bearing	Self-aligning roller bearing	Double row cylindrical roller bearing	Bears heavy load and impact
Motor	All-copper coil motor	Explosion-proof motor	Standard three-phase asynchronous motor
Control box	Carbon steel / stainless steel	Rainproof and dustproof type	Optional variable frequency speed adjustment

Installation method

The elevator must be installed on a solid concrete foundation or steel structure support, and the foundation must bear the equipment's own weight and dynamic load during operation; during installation, ensure the frame is installed vertically, and anchor bolts are tightened according to torque requirements; chain or belt tension should be appropriate, the hopper should be installed securely, and the feed inlet and outlet should be well-sealed; after installation, perform a no-load test run, check whether the chain or belt runs smoothly, and whether there is abnormal vibration or noise, and ensure the hopper is not jammed; during the load test run, gradually increase the feeding quantity, observe the conveying effect and motor current to ensure it does not exceed the rated current; a dust removal system should be equipped to reduce dust pollution; a central control system can be equipped for online monitoring and automatic control.

Application scenario table

Industry	Application	Recommended configuration	Key requirements
Chemical industry	Vertical conveying of powdery and granular materials	Type 150–500	Good sealing, pollution prevention, corrosion resistance
Food industry	Grain and food raw materials vertical conveying	Stainless steel elevator	Hygienic, easy to clean, pollution-resistant
Metallurgical industry	Ore and sintered ore vertical conveying	Model 300–500	Wear-resistant, high-temperature-resistant, large capacity
Mining industry	Ore and sand vertical conveying	Model 350–500	Large capacity, wear-resistant, stable operation
Building materials industry	Cement, sand, gypsum vertical conveying	Model 250–500	Good sealing, dustproof, large conveying capacity
Fertilizer industry	Fertilizer raw materials and finished products vertical conveying	Stainless steel elevator	Corrosion-resistant, pollution-resistant, easy to clean
Coal industry	Coal powder and coal blocks vertical conveying	Model 300–500	Wear-resistant, explosion-proof, large capacity
Grain industry	Grain and flour vertical conveying	Stainless steel elevator	Hygienic, easy to clean, large conveying capacity

Note

The elevator is suitable for conveying powdered, granular, and small granule bulk materials upwards, with a maximum lifting height of 28-32.7m, conveying capacity of 3-58m³/h, hopper spacing of 500-600mm, and motor power of 3-37kW. Explosion-proof motors should be selected for explosive environments. For highly abrasive materials, it is recommended to use high manganese steel or wear-resistant alloy hoppers and chains.

## Technical FAQ

1. What is an elevator?

The elevator is a straight-through type, suitable for conveying powdered, granular, and small granule bulk materials upwards. It can adapt to different working conditions and is widely used in many industrial sectors.

2. What is the working principle of the elevator?

The elevator drives the hopper upward through a motor-driven chain or belt. Material is loaded into the hopper from the lower part, and when the hopper is lifted to the upper part, it tilts to discharge the material, achieving vertical material transport.

3. What are the types of elevators?

The elevator models include 150, 200, 250, 300, 350, 400, 450, and 500.

4. What is the maximum lifting height and conveying capacity of the elevator?

The maximum lifting height is 28-32.7m, and the conveying capacity is 3-58m³/h, varying according to the model.

5. What is the motor power of the elevator?

The motor power is 3-37kW, depending on the model.

6. What is the hopper spacing of the elevator?

The hopper spacing is 500-600mm, varying with the model.

7. What are the wear parts of the elevator?

Hoppers, chains or belts, bearings, etc. Among them, the hopper and chain are the main wear parts. It is recommended to select materials such as high manganese steel, wear-resistant alloy, or stainless steel.

8. What are common faults of the elevator?

Chain breakage (overload or wear), hopper falling off (loose connection or wear), abnormal vibration (uneven chain tension or loose foundation bolts), reduced conveying capacity (hopper wear or uneven feeding).

9. Does the elevator need a foundation?

Yes. It needs to be installed on a solid concrete foundation or steel structure support. The foundation must bear the equipment’s weight and dynamic load during operation, with foundation bolts fixed.

10. What materials is the elevator suitable for?

Suitable for powdery, granular, and small granular bulk materials, such as chemical raw materials, food, ores, sand and gravel, cement, grain, fertilizer, coal, etc.

11. Can the elevator be customized?

Yes, the hopper material (high manganese steel/stainless steel/wear-resistant alloy), motor power, motor configuration (explosion-proof motor), frame material (carbon steel/stainless steel), and central control system can all be customized.

12. What is the difference between an elevator and a screw conveyor?

The elevator is used to transport materials vertically upward, implemented through a hopper and chain; the screw conveyor is used for horizontal or inclined transportation of materials, pushing materials through screw blades. The two are often used together to form a complete material conveying system.

13. How to maintain the elevator?

Regularly check the wear of hoppers and chains, replace or adjust them in time; regularly check the lubrication condition of bearings, replenish or replace grease; regularly check the chain tension; regularly check whether the anchor bolts and connecting bolts are loose; regularly clean accumulated materials and foreign objects inside the machine; regularly check the operating status of the motor and reducer.

14. Does the elevator comply with RoHS and REACH?

Standard equipment complies with RoHS and REACH regulations and does not contain SVHC high concern substances. Refer to the product test report for details.

15. How to choose the elevator model?

Choose the corresponding model based on the nature of the material, lifting height, and conveying capacity; choose the hopper spacing and motor power according to material characteristics; choose the hopper material (carbon steel/stainless steel/wear-resistant alloy) according to the working conditions.

Technical FAQ

What information is needed for a feeder or conveyor?

Send capacity, material density, lump size, conveyor length, inclination, start-stop frequency and required control mode.

Why is starting torque important?

A loaded conveyor or feeder may need much higher starting torque than its running load. Check the motor, gearbox and starting method together.

Authoritative references

For standards and safety context, see ISO standards and the U.S. Mine Safety and Health Administration. Confirm the exact local requirements for your project.

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