DOA AS23 Hydraulic Angle Grinder – Professional 9-Inch Hydraulic Grinder

The DOA AS23 Hydraulic Angle Grinder is a professional-grade, heavy-duty 230 mm hydraulic angle grinder engineered for demanding cutting, grinding, brushing, cleaning, and surface preparation applications. Designed and manufactured in Italy by DOA, the AS23 provides dependable hydraulic power for industrial contractors, utility companies, commercial divers, shipyards, offshore operators, demolition crews, and maintenance professionals.

Unlike conventional electric angle grinders, the DOA AS23 is powered by a high-performance hydraulic motor that delivers consistent torque and dependable operating speed under heavy loads. The hydraulic drive system also eliminates the need for electricity at the tool, making the AS23 an excellent choice for wet, muddy, underwater, and hazardous working environments where electric tools may be unsafe or impractical.

Whether cutting steel pipe, removing corrosion, preparing welds, cleaning marine growth, grinding concrete, or completing underwater repairs, the DOA AS23 hydraulic grinder is built to deliver reliable performance in demanding conditions.

Heavy-Duty Hydraulic Grinder for Industrial Applications

The DOA AS23 is designed for professional users who require a durable grinder capable of operating for extended periods in harsh environments. Its hydraulic motor has fewer wear-sensitive components than many conventional electric or pneumatic tools and receives continuous lubrication from the hydraulic circuit during operation.

This rugged construction helps reduce maintenance requirements while providing the durability needed for daily use in fabrication shops, trenches, shipyards, offshore platforms, demolition sites, utility projects, and underwater environments.

The DOA AS23 is suitable for applications including:

• Industrial maintenance and repair
• Steel fabrication
• Utility construction
• Pipeline installation and repair
• Shipbuilding and ship repair
• Commercial diving
• Marine salvage
• Offshore oil and gas operations
• Bridge and infrastructure maintenance
• Concrete and steel demolition
• Municipal water and wastewater work

Powerful and Consistent Hydraulic Performance

The DOA AS23 hydraulic angle grinder is engineered to maintain strong torque and dependable wheel speed during difficult cutting and grinding applications. While electric grinders may slow down or overheat under continuous heavy loads, the AS23 uses hydraulic power to provide consistent performance for professional applications.

The grinder is available in hydraulic flow configurations designed to operate with compatible hydraulic power units, power packs, excavator circuits, truck-mounted hydraulic systems, and other open-center hydraulic sources.

DOA AS23 Technical Specifications

• Grinding Wheel Diameter: 230 mm / 9 inches
• Hydraulic Flow Options: 20 L/min or 30 L/min
• Operating Pressure: 140–180 bar
• Surface Model Speed: Approximately 5,500 RPM at 30 L/min
• Underwater Model Speed: Approximately 2,200 RPM at 30 L/min
• Maximum Cutting Capacity: Approximately 50 mm
• Weight: Approximately 5 kg / 11 lbs.
• Dimensions: Approximately 32 x 25 cm
• Compatible Accessories: Cutting discs, grinding wheels, and wire brushes

Hydraulic flow and pressure must be matched to the selected grinder configuration. Always confirm hydraulic power source compatibility before operating the tool.

Available for Surface and Underwater Grinding

One of the primary advantages of the DOA AS23 is its ability to operate in wet environments where electric grinders may present safety concerns. Because the tool is hydraulically driven, there is no electric motor or electrical current at the grinder itself.

A dedicated underwater DOA AS23 angle grinder configuration is available for commercial diving, marine construction, subsea maintenance, salvage, and underwater repair work.

The underwater model can be used for applications such as:

• Underwater steel cutting
• Ship hull maintenance
• Propeller cleaning
• Marine growth removal
• Subsea structure maintenance
• Underwater weld preparation
• Bridge pier maintenance
• Lock and dam repairs
• Harbor and port construction
• Commercial diving operations

Versatile Cutting, Grinding, and Cleaning Tool

The DOA AS23 is more than a standard hydraulic grinder. By changing the installed accessory, operators can use the tool for a wide range of cutting, grinding, brushing, cleaning, and surface preparation tasks.

Common applications include:

• Cutting steel plate and structural steel
• Cutting metal pipe
• Grinding welds
• Preparing weld joints
• Removing rust and corrosion
• Removing paint and protective coatings
• Grinding concrete and masonry
• Deburring fabricated components
• Cleaning ship hulls and marine equipment
• Removing marine growth
• Cleaning propellers and underwater structures
• Preparing surfaces for coating or repair

The grinder accepts standard 230 mm cutting discs, grinding wheels, and compatible wire brushes, allowing one hydraulic tool to perform multiple functions across industrial, marine, utility, and construction applications.

High Back-Pressure Tolerance for Long Hydraulic Hose Runs

The DOA AS23 is designed with strong hydraulic back-pressure tolerance, making it suitable for projects that require longer hydraulic hose assemblies. This allows the hydraulic power unit to remain positioned away from the immediate work area while the operator uses the grinder in trenches, elevated structures, confined spaces, or underwater locations.

Long hose capability is especially beneficial for:

• Bridge maintenance projects
• Offshore platforms
• Commercial diving operations
• Large industrial facilities
• Remote construction sites
• Municipal utility repairs
• Shipyards and dry docks

Compact and Operator-Friendly Design

Despite its powerful hydraulic performance, the DOA AS23 features a compact and balanced design that provides excellent maneuverability. Its configuration allows operators to work around pipes, structural components, underwater obstacles, and other restricted areas where larger cutting tools may be difficult to position.

Operator-focused features include:

• Adjustable wheel guard
• Auxiliary side handle
• Compact and balanced construction
• Smooth hydraulic operation
• Excellent control during cutting and grinding
• Improved maneuverability in confined spaces
• Reduced electrical hazards in wet environments

Ideal Industries for the DOA AS23

The DOA AS23 hydraulic angle grinder is an excellent choice for professionals working in industries where reliability, durability, and safe wet-environment operation are essential.

• Commercial diving
• Shipbuilding
• Ship repair
• Marine construction
• Offshore oil and gas
• Municipal water utilities
• Wastewater treatment
• Pipeline construction
• Industrial maintenance
• Steel fabrication
• Demolition
• Mining
• Bridge construction
• Infrastructure rehabilitation
• Power generation
• Heavy equipment maintenance

Key Benefits of the DOA AS23 Hydraulic Angle Grinder

• Professional-grade 230 mm / 9-inch hydraulic angle grinder
• Powerful hydraulic motor with dependable torque under load
• Available in surface and underwater configurations
• Suitable for wet, muddy, hazardous, and submerged environments
• Accepts standard cutting discs, grinding wheels, and wire brushes
• Designed for steel cutting, grinding, cleaning, and surface preparation
• High hydraulic back-pressure tolerance
• Compatible with longer hydraulic hose runs
• Compact and maneuverable design
• Durable construction for demanding professional use
• Engineered and manufactured in Italy

Why Choose the DOA AS23 Hydraulic Grinder?

The DOA AS23 Hydraulic Angle Grinder is designed for professionals who cannot afford tool failure in demanding environments. Its combination of hydraulic power, rugged construction, wet environment capability, and accessory versatility makes it a dependable solution for cutting, grinding, cleaning, and surface preparation work.

For contractors and maintenance teams that regularly work around water, mud, steel structures, pipelines, ships, bridges, or offshore equipment, the DOA AS23 offers significant advantages over conventional electric grinders.

DOA AS23 Hydraulic Angle Grinder Available in the United States

Rental Tools Online is a North American supplier of DOA hydraulic tools and equipment, providing professional product support, replacement parts assistance, and shipping throughout the United States.

Whether you need a heavy-duty hydraulic grinder for industrial maintenance, commercial diving, offshore work, ship repair, utility construction, or steel fabrication, the DOA AS23 delivers the durability and performance required for demanding professional applications.