Page 304 - HAZET英文2021

Pneumatic Tools

When using pneumatic tools, there are various different
parameters to consider to achieve the best possible result.
Our operating instructions contain technical information, e.g. details on working
pressure, hose diameter, etc.
These details must be observed at all costs, since they have a
considerable impact on the pneumatic tool’s performance.
Working pressure

• Reducing the recommended working pressure by 1 bar results in a performance reduction of up to 25%.
• Too narrow or too long a hose reduces the air flow rate and with it the performance of the product.
• A higher than specified working pressure accelerates wear and tear of the tool.
Compressor

• A pneumatic tool is powered by compressed air. A compressor is needed to generate the compressed air. The
compressor has to be chosen in such way that it can continuously generate the required amount of compressed air.
• With our pneumatic tools we specify in the operating instructions how much air is needed to
achieve the required output. Depending on the model, our impact wrenches require between 70
and 283 litres of compressed air per minute at a working pressure of approx. 6.3 bar.
• Often the specifications on the compressor are stated “without pressure”.
This means that when “150 litres per minute” can be found as a specification on a compressor, this is
the amount of compressed air produced by the compressor without pressure in the tank.
• If the required working pressure increases, the amount of air produced decreases drastically. For the production and storage
of 150 litres of compressed air per minute at a working pressure of 6.3 bar, a large workshop compressor is required. An
“ordinary household compressor” with a compressed air tank of 25 litres produces an average of 200 litres of compressed
air per minute. In doing so, the motor (usually approx. 1.5 kW / 2 PS) works against a pressure of at least 6.3 bar in the
compressed air tank. This means that often only an effective potential of one tenth, i.e. approx. 15 litres per minute is left over.
• Therefore it is advisable to align the specifications of the compressor and the tool which is to be used.
Air hose

• The hose diameter and length are both decisive factors for the full performance of the compressed air devices.
The internal hose diameter should not exceed 10 mm in order to ensure the required air flow
rate. The shorter the hose from the compressor to the device is, the lower the friction loss
and the full pressure produced by the compressor is available to the device.
Maintenance and care

• Clean, dry air and oiling daily are guarantors for your pneumatic devices’ long service life
• The long service life of the pneumatic tool is critically dependent on maintenance.
• Note the specifications in the operating instructions regarding storage and maintenance.

Components and spare parts from page 482 to 490 Valid until December 31, 2021 303