当车轮接触到塑料路障时，由于行驶中的压力，使车轮压向塑料路障上的钢针，胶套内的钢针会随移动方向刺入车胎。气压轮胎会使钢针与路障分离。车轮继续转动，使车胎上钢针越刺越深。车胎中气体便从钢针内孔泄出。一般将有四至六枚钢针的刺入车胎，30秒时间内气体全部放出。达到有效截停车辆的目的。

Stainless steel manual tire breaker has the characteristics of pre-assembly, recycling, free retraction, safe and effective, large road coverage, adaptable, light weight, portable, easy to use, etc. It is the preferred equipment for road traffic control.

When the wheel touches the plastic barricade, due to the pressure of driving, the wheel presses against the steel needle on the plastic barricade, and the steel needle inside the rubber sleeve will pierce into the car tire with the moving direction. The pneumatic tire will make the steel pin separate from the barricade. The wheel continues to rotate, making the steel needle on the tire deeper and deeper. The gas in the tire then leaks out of the inner hole of the pin. Generally there will be four to six steel needles pierced into the car tire, 30 seconds of time all the gas released. Achieve the purpose of effectively stopping the vehicle.

每箱重量：    8.7千克(按8米计)

Main performance:

Number of steel needles:             170 (by 8 meters)

Effective width:                           185mm

Effective length of steel needles: 40mm

Holder material:                           modified nylon

Steel needle material:                   stainless steel tube

Steel needle diameter:                 4mm

Weight per box:                           8.7 kg (based on 8 meters)