aggregate hammer crusher specifications

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Aggregate hammer crushers are essential machines widely used in mining, construction, and aggregate production industries. They play a crucial role in crushing rocks, stones, and minerals into smaller sizes suitable for various construction applications, including concrete, asphalt, and road base materials.

This article covers the key specifications of aggregate hammer crushers to help you understand their capabilities, features, and suitability for different crushing tasks.

What is an Aggregate Hammer Crusher?

An aggregate hammer crusher is a type of impact crusher that uses a high-speed rotating hammer to crush materials by impact force. It is commonly used to crush medium-hard or brittle materials such as limestone, coal, gypsum, shale, and other minerals.

The crusher consists of a rotor with multiple hammers attached, a crushing chamber lined with wear-resistant plates, and a discharge grate or screen to control the final particle size.

Key Specifications of Aggregate Hammer Crushers

1. Capacity (Throughput)

  • Range: Typically 10 to 500 tons per hour (tph), depending on model size and feed material.

  • Description: Capacity is the volume of material the crusher can process per hour, influenced by feed size, crusher speed, and crushing chamber design.

2. Feed Size

  • Range: Usually from 100 mm up to 600 mm.

  • Description: The maximum size of raw material that the crusher can accept. Hammer crushers generally handle larger feed sizes compared to other crusher types.

3. Output Size

  • Range: Adjustable between 0-10 mm to 0-50 mm, depending on grate opening and rotor speed.

  • Description: The final particle size after crushing can be controlled by changing the grate openings or rotor speed, allowing for customized aggregate gradation.

4. Rotor Speed

  • Range: Around 600 to 1800 RPM (Revolutions Per Minute).

  • Description: Higher rotor speed increases the impact force, improving crushing efficiency and output size control.

5. Power Requirements

  • Range: From 30 kW to over 250 kW, based on crusher size and capacity.

  • Description: The crusher is powered by electric motors or diesel engines, and power consumption varies depending on material hardness and feed size.

6. Hammer Material and Design

  • Material: Usually high manganese steel or chromium alloy for durability.

  • Design: Hammers can be fixed or swinging type, optimized for impact force and wear resistance.

7. Crusher Dimensions and Weight

  • Typical Dimensions: Length 3–7 meters, width 1.5–3 meters, height 1.5–3 meters.

  • Weight: Varies from 5 to 30+ tons depending on model.

8. Crushing Chamber

  • Features: Lined with wear-resistant materials such as manganese steel to withstand abrasion.

  • Design: Usually rectangular or trapezoidal to facilitate efficient crushing and material flow.

Additional Features and Specifications

  • Adjustable Discharge Grate: Controls final product size and allows separation of oversized material.

  • Safety Devices: Overload protection, automatic shutdown, and emergency stop mechanisms.

  • Ease of Maintenance: Replaceable hammer plates, quick access to internal parts.

  • Mobility Options: Stationary or mobile versions are available to suit fixed plants or mobile crushing operations.

Applications of Aggregate Hammer Crushers

  • Crushing aggregates for road construction and concrete production.

  • Breaking down coal, limestone, gypsum, and other minerals.

  • Recycling construction waste and producing secondary aggregates.

  • Pre-crushing materials for secondary crushers in mining operations.

Summary Table of Typical Aggregate Hammer Crusher Specifications

Specification Typical Range
Capacity 10 – 500 tph
Feed Size ≤ 600 mm
Output Size 0 – 50 mm (adjustable)
Rotor Speed 600 – 1800 RPM
Power 30 – 250 kW
Hammer Material High manganese steel / chromium alloy
Dimensions (L×W×H) 3–7 m × 1.5–3 m × 1.5–3 m
Weight 5 – 30+ tons

Understanding the specifications of an aggregate hammer crusher is essential for selecting the right crusher for your specific application. With their ability to handle large feed sizes, high throughput, and adjustable output sizes, hammer crushers remain a versatile and efficient choice for aggregate production and mineral processing.

If you need further assistance on choosing the right model or more detailed specs based on your project requirements, feel free to ask!