EVA Material Expandable Hot Sale Anti Crash Guardrail Safety
Highway Roller Barrier
The typical steel plate guardrail does not guarantee the safety of
the driver. Softer guardrails can protect drivers from impact and
provide an opportunity to save more drivers' lives. In order to
minimize accidents, rotating guardrail was born. Rolling barriers
do more than absorb impact energy. They convert impact energy into
rotational energy to propel the vehicle forward, rather than
potentially breaking through immovable obstacles. The Taicheng
product features a rotating EVA barrel with excellent shock
absorption, a three-dimensional cushioning frame and dense props to
support the frame. The rotating barrel is equipped with a reflector
to provide good visibility. Compared to other polyethylene resins,
EVA has better flexibility and elasticity and has the most similar
properties to rubber. In fact, it is lighter than rubber and more
flexible than polyurethane. In short, it is not easily damaged.
Advantages:
Energy absorption: The roller guardrail is designed to gradually
absorb the kinetic energy of the collision vehicle, reducing the
severity of the collision. The rolling motion of the barrel
dissipates energy over longer distances, reducing the decelerating
force on the vehicle and its occupants.
Direction control: When the vehicle hits the roller guardrail, the
roller spins, which helps to redirect the vehicle back onto the
road, preventing it from crossing oncoming traffic or colliding
with stationary objects such as trees or power poles.
Versatility: Roller guardrails can be used in a variety of road and
highway configurations, including straight sections, curves, and
Bridges. They can also be installed in permanent and temporary
environments.
Reduced maintenance: Roller guardrail maintenance costs are
generally lower because the roller spins when hit, minimizing
damage to the guardrail itself. This can save costs over time
compared to traditional rigid barriers that may require frequent
servicing or replacement.
Improved safety: Roller guardrails are designed to enhance road
safety by reducing the severity of collisions and preventing
vehicles from leaving the road. They are often used in areas with a
high risk of off-road accidents.
Compatibility: Roller guardrail is compatible with other safety
measures and technologies, such as guardrail, crash cushioning and
electronic warning systems.
It is important to note that roller guardrail is only one type of
road safety guardrail system, and its effectiveness depends on a
number of factors, including proper installation, maintenance, and
compliance with safety standards and guidelines. Different regions
and countries may have their own specifications and guidelines for
the use of roller guardrails in road safety applications.
The rotary drum is made of EVA (ethylene-vinyl acetate copolymer)
as the main material, and more than 30 kinds of auxiliary materials
such as PE (polyethylene) and related chemical auxiliaries are
added at a certain temperature and pressure. It has high
flexibility and resilience, and also has high temperature
resistance, and continuous working temperature is between -30℃ and
70℃.
The reflective strip is attached to the rotating cylinder. When
driving at night, through the lighting of the headlights, the
outline of the route can be better reflected, and the vehicle can
play a better induction role to improve driving safety.
Application field:
The product can be widely used in highway curves.
Highway ramps and continuous downhill sections.
Midsection of curved belt.
Part of a cliff or high drop slope.
Bridge the dock.
Areas affected by crosswind.
Tunnel entrance.
And accident-prone roads.
Technical Parameters:
| No. | Name | Specifications(mm) | Material |
| 1 | Roller | 345*490/350*510(Customized) | Polyurethane |
| 2 | Post | 140*2000*4.5(Customized) | Q235 |
| 3 | PVC Tube | 160*500*6.5(Customized) | PVC |
| 4 | Beam | 100*80*4.0 | Q235 |
| 5 | Rolling Circle | 182×145×6.0 | Polymer Ethylene |
| 6 | End Socket | 1300×230×4.0 | Q235 |
| 7 | Post Cap | 145×145 | Rubber |
| 8 | Bolt | M18*120 | Q235 |
| M18*180 | Q235 |
| M18*80 | Q235 |
| 9 | Nut | M20 | Q235 |
| Item | Specifications |
| Apparent Density (KG/m³) | ≥125 |
| Tensile Strength(MPa) | ≥1.15 |
| Elongation(%) | ≥320 |
| Compression Permanent Distortion (%) | ≥38 |
| Resilience(%) | ≥72 |
| Chemical Composition |
| C | Si | P | S | Mn | Ni | Cu | Cr | B | V | Mo | W | Al | Co | Pb | Se | Te | Bi |
| 0.18% | 0.001% | 0.022% | 0.013% | 0.38% | 0.002% | 0.001% | 0.002% | 0 | 0 | 0.001% | 0.001% | 0.002% | 0.001% | 0.001% | 0.001% | 0.02% | 0.03% |
