Needle and Chisel Scalers for Scaling Concrete and Metal

Needle and Chisel Scalers are an essential pneumatic tool for scaling concrete and metal in any industrial environment. For heavy-duty industrial tasks, these types of scalers provide maximum precision and power, allowing workers to get the job done quickly and efficiently. This article provides an overview of the types of needle and chisel scalers available, their features and benefits, and tips on how to use them safely. It also gives advice on choosing the right type of scaler for a particular job to achieve the best possible results.

Common uses for a needle and chisel scaler

A needle scaler or needle-gun is a versatile and powerful tool for metalwork applications. It uses a series of small needles that vibrate at high frequencies to quickly and effectively remove rust, mill scale, and old paint from metal surfaces. The needles are also effective for removing old coatings from concrete surfaces.

The needle scaler is a simple yet effective tool. A small capacity air compressor powers it, and is easy to operate. The tool can be used with a variety of attachments, allowing it to be used in a wide number of applications. It is a great tool for home mortar repair, automotive repair and shipboard preservation.

Removing industrial paint and rust 

Needle scalers are used to remove paint, rust, and other stubborn deposits from metal surfaces. They can also be used to remove stubborn dirt and grime from concrete surfaces. Needle scalers are available in various sizes and styles to suit different applications.

The most important factors to consider when choosing a needle scaler is the type of material to be removed and the scale of the area to be addressed.. For example, if you need to remove paint from a small area metal surface, you would benefit from a different type of scaler than if you were removing rust and corrosion from a long, large diameter pipe. There are also scalers designed for specific applications, such as paint removal from cars or trucks.

Chisel scaler for mortar removal

The chisel scaler is a popular pointing tool used for mortar removal and surface preparation. It has a metal body with a pointed chisel attached to the end. The chisel is used to chip away mortar, while the scaler’s body helps to create a straight and even line. The chisel scaler is often used in the construction industry for removing old mortar from brickwork before repointing. 

When using a needle scaler or chisel scaler, it is important to follow the manufacturer’s instructions carefully for safety in use and servicing the tool for extended tool life. 

It is important to note that Needles are a consumable item and will wear throughout use. Replacements will nearly always be required.

How can construction and marine industries benefit from needle and chisel scalers?

Needle and chisel scalers are specialised de-scaling tools that are ideal for the Construction and Marine industries. 

  • They are designed to remove rust, scale and other coatings from metal surfaces quickly and efficiently in small and hard to reach areas.. 
  • The tools use high-frequency reciprocating needle vibrations to break away the coating, making them much faster and easier to deploy to the work surface in a wider variety of locations (example whilst at sea) than other methods such as sand or media blasting. 
  • The needle movement also offers a safer working environment for the user as less PPE is required versus blasting, making them the preferred option for companies looking to do the job quickly and safely with more people “on the task” at once.
  • The scalers are available in various sizes and configurations, Trelawny tools reciprocate at 2400 blows per minute and require a maximum of 2.6lps (5.5cfm) to operate.
  • Our industry leading Vibe-lo safety technology delivers a range of tools that vibrate at less than 3.7 Aeq m/s²
  • They are also easy to use, maintain and service, making them a cost-effective option for companies looking for high performance versatile surface preparation hand tool.
  • It is highly recommended to use needle scalers with TVS dust extraction capability and vacuum systems to improve safety in the working environment for the user and others deployed in the same area. 


Trelawny needle and chisel models include:

Needle and chisel scalers are one of the most widely used tools in industrial operations. They are ideal for scaling concrete and metal surfaces, offering the most efficient means of removing corrosion, surface imperfections, and other unwanted materials. However, different types of needle and chisel scalers are available for different applications. 

The Vibro-Lo series uses integrated vibration reduction technology, which reduces vibration-related injuries by 8x. 

ATEX-certified models are specifically designed for use in hazardous areas and EX zones.

Standard needle scalers

Trelawny SPT B Series Needle & Chisel Scalers Maintenance & Application – Video

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