
A type of conveyor for continuous vertical transport of limestone, limestone, crushed stone, and highly abrasive bulk materials, featuring large conveying capacity, high lifting height, stable operation, and low maintenance costs.
Capacity: 15–800 m³/h
Lift Height: ≤60 m
Material Size: ≤270 mm
Temperature: ≤250℃
The NE Plate Chain Bucket Elevator for Limestone is a continuous vertical conveyor for transporting blocky and highly abrasive limestone. It uses a plate chain to drive the buckets in a cyclical motion, continuously lifting the limestone from a low position to a designated height before automatic unloading. The lifting height is 5-60 meters, and the lifting capacity can reach 800 m³ per hour.

Limestone is characterized by its high hardness and abrasiveness. When transporting limestone, the belts of ordinary belt elevators will be cut and scratched within a few days. The NE Plate Chain Bucket Elevator for Limestone relies on high-shear-strength plate chains to withstand impacts from hard materials. Its configuration varies depending on the type of limestone: hard, dense limestone uses high-strength alloy steel chains and thickened, wear-resistant buckets, with increased drive power; highly abrasive limestone requires replaceable wear-resistant liners on the inner wall, and the chain undergoes carburizing treatment; moist, sticky limestone with a moisture content >5% requires large-capacity, shallow buckets with anti-stick coatings and bottom cleaning scrapers.
The NE Plate Chain Bucket Elevator for Limestone's highly wear-resistant structure and stable, efficient operation are well-suited for limestone conveying. The equipment uses high-strength alloy plate chains and thickened, wear-resistant buckets, effectively resisting the impact and wear from long-term limestone falls, extending its service life. Simultaneously, its continuous circulating lifting structure can achieve a large conveying capacity of 15~800 m³/h, flexibly adapting to different production scales. With a maximum lifting height of 60 meters, the single unit not only reduces the footprint required for multi-stage conveying but also simplifies the process. The enclosed casing design effectively suppresses dust spillage, meeting environmental protection requirements. The high-strength plate chain drive system operates smoothly with a low failure rate and is easy to maintain, making it particularly suitable for continuous industrial operations in all weather conditions. This provides users with a reliable and economical vertical limestone conveying solution.

The NE Plate Chain Bucket Elevator for Limestone employs a gravity-fed (inflow) feeding and gravity-discharge working method. Limestone flows into the running hopper from the inlet. The motor drives the reducer, which rotates the head sprocket. The plate chain pulls the hopper upwards along the guide rail. Once the hopper reaches the top, the limestone is discharged under its own gravity. The limestone conveying process utilizes a fully enclosed casing, resulting in low chain speeds and virtually no material backflow. This design not only ensures efficient conveying but also minimizes reactive power loss and equipment wear.

| Model | Lifting capacity(m3/h) | Max granularity(mm) | ||||
| maximum percent(%) | ||||||
| 10 | 25 | 50 | 75 | 100 | ||
| NE15 | <16 | <65 | <50 | <40 | <30 | <25 |
| NE30 | <31 | <90 | <75 | <58 | <47 | <40 |
| NE50 | <60 | <90 | <75 | <58 | <47 | <40 |
| NE100 | <110 | <130 | <105 | <80 | <65 | <55 |
| NE150 | <165 | <130 | <105 | <80 | <65 | <70 |
| NE200 | <220 | <170 | <135 | <100 | <85 | <70 |
| NE300 | <320 | <170 | <135 | <100 | <85 | <70 |
| NE400 | <441 | <250 | <165 | <125 | <105 | <90 |
| NE500 | <470 | <240 | <190 | <145 | <120 | <100 |
| NE600 | <600 | <240 | <190 | <145 | <120 | <100 |
| NE800 | <800 | <275 | <220 | <165 | <135 | <100 |
|
Transportation Requirements |
Recommended Model |
Description |
|
Small conveying capacity (15–50 m³/h) |
NE15、NE30、NE50 |
Suitable for small limestone production lines |
|
Medium conveying capacity (100–300 m³/h) |
NE100、NE150、NE200、NE300 |
Suitable for medium-sized cement plants and lime plants |
|
Large conveying capacity (400–800 m³/h) |
NE400、NE500、NE600、NE800 |
Suitable for large-scale cement production lines and mines |
The NE Plate Chain Bucket Elevator for Limestone mainly consists of core components such as a drive unit, head unit, plate chain, hopper, intermediate casing, tensioning device, and tail unit. The drive unit provides continuous power to the equipment, ensuring stable lifting operation; the head unit is responsible for unloading limestone and supporting the drive mechanism; the plate chain, as the core transmission component, directly determines the load-bearing capacity and service life of the equipment; the hopper is used to load and lift limestone; the intermediate casing forms a closed conveying channel, effectively reducing dust spillage; the tensioning device ensures long-term stable chain operation; and the tail unit provides feeding and return guidance. All components work together to ensure efficient and reliable operation of the entire machine.

The NE Plate Chain Bucket Elevator for Limestone can be used for vertically conveying powdery, granular, and small-lump abrasive limestone materials with temperatures below 250℃. Common materials include limestone, crushed limestone, lime powder, and lime clinker. It can be used for continuous feeding, conveying, and transfer between different processes in limestone processing.

A large building materials company in Southeast Asia uses the NE200 NE Plate Chain Bucket Elevator for Limestone to convey crushed limestone into a 28-meter hopper. The limestone feed particle size is 120mm. Equipped with a 37kW motor, the lifting capacity is 150 tons per hour. After 18 months of continuous operation, the chain wear rate is low, production efficiency is increased by approximately 25%, and maintenance frequency is effectively reduced.

Can the NE bucket elevator transport hot limestone?
Yes, the standard model is suitable for ≤250℃ conditions. High-temperature models can be customized with heat-resistant structures.
What is the maximum lifting height?
Typically up to 60 meters; custom designs are available for special applications.
Is it suitable for large limestone blocks? 、
Yes, the NE plate chain structure is more suitable for large particles and highly abrasive materials.
How often should the chain be replaced?
Under normal operating conditions, its service life is typically 3–5 years.