Material for passenger car tires
Star coupling lithium rubber is the ideal raw material for bead rubber. Ordinary butadiene lithium rubber is not sticky and difficult to knead, but it is unique in processing. It can quickly mix large amounts of carbon black without natural rubber. The bead adhesives, such as rags, must be hard and require very high wear resistance and must be able to be processed. BunaCB65 (Butadiene Rubber) has been widely used with the best balance of performance. Using BR as bead rubber improves wear resistance, reduces heat generation and improves resilience. The synthesis technology of polymers for low-fuel-tire tires developed due to shortage of oil has brought great changes to the tire rubber compound. According to reports, a 10% reduction in tire rolling resistance can reduce fuel consumption by 1-2, while the energy consumption caused by the tire's rolling resistance accounts for about 15.0% of the vehicle's various energy consumption. Therefore, reducing the tire's rolling resistance is effective in reducing vehicle fuel consumption. One of the methods. Most of the reasons for tire rolling resistance are due to rubber hysteresis loss.
The most commonly used synthetic rubber for passenger tires is styrene-butadiene rubber. The microstructure of styrene-butadiene rubber depends on the ratio of styrene bound to the cis- and trans-vinyl groups of the polybutadiene component and its molecular structure arrangement. The commonly used emulsion polymerized styrene-butadiene rubber has excellent slip resistance on wet road surfaces, but its rolling resistance is large. In addition, although the butadiene rubber has a small rolling resistance, its wet road surface has poor slip resistance. Solution-polymerized styrene butadiene rubber produced by a solution polymerization process that easily controls the microstructure compared to emulsion-polymerized styrene-butadiene rubber (a medium-to-high vinyl content solution with reduced ethylene binding and increased vinyl content of the polybutadiene moiety Polymerized styrene-butadiene rubber) can keep the anti-slip performance of wet pavement and reduce rolling resistance.
Maximum Load:60-10,000kg
The state of the art VR type electric chain hoist is an indispensable item used in the light-duty lifting industries across the world, where the characteristic of reliability is designed into the hoist structure, safety features incorporated into the operating system, and advanced crafting techniques introduced into the modern design.
Made for less volume, lighter weight, and more operating safety and convenience, the chain hoist has the ability to adapt to various working environment, all available at a competitive price. Different models offer choices of lifting capacities ranging between 60kg and 7500kg to suit everyday light-duty lifting work. When used in combination with manually operated trolley, hand-pushed trolley, or motor-driven trolley, the hoist can be mounted on the mono-rail traveling Crane, Jib Crane, and Gantry Crane. This provides a maximum solution to solve your material handling applications.
VR electric chain hoist aims to provide customers with highest level of safety and reliability. Following is a list of standard configurations of the product.
New lifting eye nut with intermediate teeth for perfect chain drive
Torque limiter
Disk brake for lifting motion
Standard lifting height:3m
Double-speed lifting
Electrical safety devices for upper and lower lifting position limit
IP55 rated lifting and traveling motor
Tropic-proof protection (lifting and steering-90 to 95 %)
Galvanized lifting chain
Emergency punch-stop button
Power supply source:400V/3Ph/50Hz,415V/3Ph/50 Hz,460V/3 Ph/60Hz
Low voltage 48 V command
Speed variation on traveling
Comply with CE directives
The electric chain hoist is available with various operational components to suit various applications.
Secondary brake for the lifting motor
Limit switch for traveling
Short headroom trolley
Trolley running on curved track
Dual-speed traveling trolley carriage(20 & 5 m/min)
Slow speed traveling trolley(3 to 10 m/min)
High speed traveling trolley
Additional button on pendant unit
Rain protection
Explosion proof hoist
Reinforced tropic-proof protection
Chain hoist available in a version that complies with CSA standards
Manual brake release
For any other special requirements, please contact us.
Electric Chain Hoist
Electric Chain Hoist,European Electric Chain Hoist,Electric Chain Crane Hoist,Chain Hoist With Hook
Eurocrane (China) Co., Ltd. , http://www.eurocranegroup.com