Hydraulic hoses fall into four main groups: wire braid hoses (such as SAE 100R1, 100R2, and 100R16), spiral wire hoses (100R9, 100R12, 4SP/4SH, and 100R15), textile braid and low-pressure hoses (100R3, 100R6, and suction types), and thermoplastic or PTFE hoses (100R7, 100R8, and specialty lines). The right choice depends on working pressure, fluid type, temperature, flexibility, and the environment the hose will run in. Wire braid suits general industrial and mobile equipment, spiral hoses handle high-pressure heavy machinery, textile hoses serve return and low-pressure lines, and thermoplastic and PTFE hoses cover lightweight, chemical, and high-temperature jobs. Hoses are the flexible arteries of a hydraulic system. They carry pressurized fluid to and from moving components where rigid tubing cannot go, absorbing vibration, movement, and pressure pulses along the way. Choosing the wrong hose is one of the fastest routes to leaks, downtime, and safety incidents, so it helps to understand what each type offers.
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