The hydraulic system is an indispensable core system in the construction machinery industry, and the hydraulic hose is an indispensable accessory product of the hydraulic system. It is used to transport or suck various gaseous, liquid or solid materials under positive or negative pressure. It is more and and important, so it is called the "vessel" of industry.
In recent years, due to the compact design and compact installation of industrial equipment, hoses are required to have a smaller bending radius, and the changes in the use environment and the transmission medium will allow the hose to withstand higher or lower temperatures, better pulse performance, and better in terms of medium resistance performance, higher requirements have been put forward, and these requirements have driven us to continue to develop and improve.
一. The classification of hoses used in construction machinery industry
There are many types of hoses used in the construction machinery industry, mainly:
Steel wire braided hose, steel wire spiral hose, fiber braided hose, embedded steel wire suction hose, etc.
二. Standards and introduction of commonly used hoses in the construction machinery industry
1. Steel wire braided hose
Product name: hydraulic hose, high pressure fuel hose, rubber fuel hose, oil return hose, medium pressure oil hose, diesel hose, fuel hose
①Execution standard: SAE 100 R1AT / R2AT; SAE 100 R16 / R17; EN 853 1SN / 2SN; EN 857 1SC / 2SC SAE 100 R5
②Hose structure: inner rubber layer: NBR synthetic rubber
Reinforcement: one or two layers of high tensile steel wire braid
Outer rubber layer: weather-resistant synthetic rubber on smooth or cloth surface
③Color: black, blue, red, green, yellow, etc.
④Temperature: -40 ℃ -120 ℃
⑤Common specifications: 3/16 ”-4”, other size can be customized
2. Steel wire spiral hose
Product name: hydraulic hose, ultra high pressure hose, high pressure hose, heavy load high pressure hose, heavy hydraulic hose
①Execution standard: EN 856 4SP / 4SH; SAE 100 R9 / R12 / R13 / R15
②Hose structure: inner rubber layer: NBR synthetic rubber
Reinforcement layer: four or six layers of high tensile steel wire winding
Outer rubber layer: black cloth weather-resistant synthetic rubber
③Temperature range: -40 ℃-120 ℃
④Common specifications: 1/4 "-12", other size can be customized
3. Fiber braided hose
Product Name: Hydraulic hose, oil return hose, fuel hose, radiator hose, power steering booster hose, brake hose, oil hose, compressed air hose, low pressure hose, air&water pipe, low pressure oil hose
①Execution standard: SAE 100 R6 / R3; EN 854 1TE / 2TE / 3TE SAE J30 R6 / R7 SAE J20 R3 / R6
②Hose structure: inner rubber layer: NBR synthetic rubber
Reinforcement layer: one or two layers of high tensile fiber braid
Outer rubber layer: weather-resistant synthetic rubber on smooth or cloth surface
③Color: black, red, blue, green, yellow, gray, etc.
④Temperature: -40 ℃-120 ℃
⑤Common specifications: 3/16 ”-2”, other size can be customized
4. Embedded steel wire suction and discharge hose
Product Name: Industrial hose, suction and discharge hose, suction and discharge hose, suction and discharge mud hose, material hose, fuel suction and discharge hose
①Execution standard: SAE 100 R4
② Structure: Inner rubber layer: Oil-resistant synthetic rubber
Reinforced layer: two or four fiber reinforced layers plus spiral steel wire
Outer rubber layer: black cloth weather-resistant synthetic rubber
③Temperature: -40 ℃-100 ℃
④Pressure: 10Bar or 20Bar
⑤Common specifications: 3/4 ”-12” ,other size can be customized
三. Principles for selection of hydraulic hoses used in the construction machinery industry
When selecting hoses and hose combinations, the following aspects should be noted:
1. Working environment: ambient temperature, climatic conditions, and external contact with other materials
2. Transmission medium: liquid, gas, solid, or a mixture of the above
3. Conveying method: pressurized discharge, vacuum suction
4. Working conditions: pressure and temperature of conveying medium, frequency of use, pulse or movement.
Assembly assembly: degree of bending; vibration of the system; risk of damage due to impact and friction; use of the correct connection type.
Yatai Especial Rubber Products Co., Ltd. has been committed to providing customers with high-quality products and services, and has an excellent R & D and production team to provide safe and reliable hose solutions for fluid transportation.
For more information, please consult our sales and technical team.
Tel: +86 15603187112(whastapp)
QQ:1002484820
Email:lotus@chnhose.com
Web: www.chnhose.com
