Needle scalers

Needle scalers: what you need to know

Air needle/chisel scalers help to remove limescale, old paint residue, corrosion spots, mill scale from the target surface quickly and easily. They are suitable for processing large areas.

Operating principle

The energy of the compressed air is converted in the device into the mechanical energy. This happens thanks to a special distribution mechanism which leads to reciprocating motion of piston(strikers) inside the cylinder. At the end of every movement they hit the back end of the working element.

What are the types of air needle/chisel scalers?

By the design of the body:

• Straight. They have a cylindrical shape and are characterised by compact dimensions. Suitable for performing works in tight spaces.
• Pistol-grip. The handle is at right angles to the body. They are comfortable for using them for a long time.

By the type of the work element air needle/chisel scalers fall into:

• Needle. The head is a bunch of metal rods which can stick out separately for different distances. This enables workers to use them for processing uneven surfaces.
• Chisel. Apart from needles, these tools can be equipped with chisels of various sizes. They are suitable for small area works.

In the catalogues, you might come across with devices fitted with:

• Vacuum housing. Used for dust catching.
• Damper. Prevents the damage of the processed element from excessive vibration reducing it by several times.

Besides, all the devices vary in size, weight, power output, performance, working pressure, the number of blows per minute and other specifications.

Tips on using air needle/chisel scalers

While processing surfaces with this air tool, a great deal of dust is produced, therefore, you should wear protective goggles. Besides, it is recommended to put on special earmuffs.

Before you switch on the device, it is necessary to make sure that all bolts and nuts are securely tightened as well as fittings and hoses are sealed. It is forbidden to let the device out of hands until it has completely stopped.

If it is impossible to install a special lubricator into the system of compressed air supply, it is necessary to apply 2–6 drops of lubricant into it through the inlet connection every two hours of work on average. After that you should let the tool work for some time without load.

When you finish using the equipment, it is recommended to clean it thoroughly with a dry cloth and compressed air. It is not advisable to use any chemicals containing chlorine, petrol, solvents.

AUTODOC: convenient online shopping

The most advantageous prices for first-rate tools are in online shop. We will find perfect products for you considering the usage conditions and loads of work and also provide you with the detailed information about current promotions, available payment methods and delivery terms. With the help of the mobile application, you’ll be able to order air needle/chisel scalers and other equipment in any place convenient for you. Our specialists will contact you very soon to confirm the order details.