What is a Digital Los Angeles Abrasion Testing Machine?

The Digital Los Angeles Abrasion Testing Machine is a laboratory testing device used to measure the abrasion resistance and crushing strength of aggregates such as stone, gravel, and crushed rock.

It evaluates how much material is worn down when subjected to impact, friction, and grinding inside a rotating steel drum, simulating real construction and transportation conditions.

What is the purpose of the Los Angeles abrasion test?

The purpose of the test is to determine:

• Aggregate wear resistance
• Aggregate durability under impact
• Material quality for road and construction use
• Percentage of weight loss after abrasion

This helps engineers select suitable materials for highway, bridge, and infrastructure projects.

How does the machine work?

The machine operates by placing aggregate samples and steel balls inside a rotating steel drum.

During rotation:

• Materials are lifted and dropped repeatedly
• Steel balls create impact and grinding force
• Weak particles break down
• Material loss is measured after testing

The result shows the Los Angeles abrasion value (%), indicating material strength.

Key Technical Specifications

• Machine weight: 375 kg
• Inner size: 1400 × 750 × 900 mm
• Outer size: 1450 × 850 × 1000 mm
• Overall dimension: 1320 × 980 × 1050 mm
• Steel balls: 12 pcs
• Counter: 4-digit digital display
• Motor power: 1.5 kW
• Motor speed: 30–33 r/min
• Drum size: 711 ±5 mm × 508 ±5 mm
• Drum wall thickness: 12.0 ±3 mm
• Feeding port: 150 ±3 mm
• Shelf thickness: 25 ±1 mm
• Shelf width: 89 ±2 mm
• Cover width: 190 mm

Key Features

• Digital LCD control system for accurate monitoring
• Stable drum rotation for consistent testing
• Heavy-duty steel structure for long service life
• Standard steel ball impact system
• Automatic counting system
• Low vibration and stable operation
• Easy maintenance and operation

Applications The machine is widely used in:

• Highway and road laboratories
• Construction material testing centers
• Civil engineering inspection institutes
• Mining and aggregate production plants
• University and research laboratories

Why is this test important?

Aggregate durability directly affects:

• Road lifespan
• Pavement strength
• Construction safety
• Maintenance cost

The LA abrasion test helps ensure materials meet engineering standards before use.

Standards reference

This equipment is commonly used in accordance with:

• ASTM aggregate abrasion test methods
• AASHTO road material standards
• ISO construction material testing guidelines

Advantages

• High testing accuracy and repeatability
• Strong industrial-grade structure
• Stable long-term operation
• Simple digital control system
• Suitable for laboratory and industrial use

About Shengshi Weiye

Shengshi Weiye manufactures professional construction material testing equipment with stable quality, export-grade standards, and OEM customization services.

We support:

• OEM / ODM customization
• Private label branding
• Export packaging solutions
• Technical support for global buyers