Safety cable test requirements

 Belts and accessories to pull in the fall of the human body for balance

Living body and limit the whereabouts of the safety device of the distance it has

Having sufficient strength to be able to withstand the resultant force of living. Safe

With its full metal parts to tape his rope after the "safety check

Method test "national standards and in the interests of safety, rope

Breaking load indicators and metal accessories.replacement seat belts

Wai Kon safety against static load 4 500N, for 100mm/min

The stretching speed test, there should be no break. Slopes, climbing belt

100kg weight check ing, free fall, impact test, it should not be

Break. Scaffolders belt should have an impact test to simulate the human way

And a belt hanging 1m increase. Self-locking safety belts and speed

Poor self image controller 100kg weight falling impact test, slipping away

Of not more than 1.2 m. To the seat belt in the red 4m connected buffer

From inside to 100kg weight impact test should not exceed 9 000NSafety belt buckle

.

The pneumatic technology offers advantages and disadvantages

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Pneumatic technology offers:
A pneumatic system structure is simple, light, easy to install and maintain. Press

The low level of power to make the use of safe relative hydraulic system safer.
2, the working medium i s an inexhaustible supply of air, the air itself without cost

. The exhaust process is simple, and does not pollute the environment, but the power consumption

Energy conversion rate is very low, low purchase price, but the cost

Higher.
3, the output power, and the operating speed of the adjustment is very easy. Cylinder

The operating speed is usually 50 ~ 500mm / s speed, but stability

Is not high.
4, the reliability is not too high, use the lives of bullied source cleanliness and

Frequency greater impact.
5, with the compressibility of air can store energy for concentrated

Gas. Can release energy in a short time to get the intermittent movement high

Accelerate response. Buffer can be realized. The impact load and overload

Strong ability to adapt. Under certain conditions, may be a pneumatic device

Self-holding capacity.flange solenoid valve
Full pneumatic control of a fire, explosion-proof, moisture-proof ability. And

Be compared to hydraulic, pneumatic used in high temperature applications (via

Often less than 160 ℃).
Edit this paragraph pneumatic defects:
1 due to the air compression susceptible to load the operating speed of the cylinder

Changes. Pneumatic way you can overcome this

Defects than the hydraulic cylinder speed faster.
2, when a cylinder in the slow motion by friction as total thrust

Cases larger cylinder low speed stability than the hydraulic cylinder.
3, although in many applications, the output force of the cylinder meet ENGINEERING

Requirements, but the output power is smaller than the hydraulic cylinder.
air cylinder manufacturers