Newly developed hydraulic hose that achieves long life when using water-based fluids.
Recently, the use of hydraulic fluids in factories has been shifting from mineral-based oils to fire-resistant water-glycol hydraulic fluids (water-glycol). However, the use of water-glycol has accelerated the corrosion of the inner rubber of hoses compared to when mineral oil was used, leading to corrosion of the metal wires in the outer reinforcement layer and causing a decrease in strength. In response, Bridgestone developed an inner rubber that suppresses corrosion. This led to the birth of the RX/RT series, which significantly reduces strength degradation due to corrosion and achieves a longer lifespan. ■ Features Achieves longer lifespan: Impulse pressure cycles improved from 400,000 times in Bridgestone's conventional products to 1,000,000 times, a 150% increase. Compact design: 40% more flexible, 20% lighter, and 3% slimmer than conventional products, enabling easier piping. Safety considerations for fires and other hazards: The hose outer skin uses fire-resistant rubber compliant with U.S. MSHA standards. Increased abrasion and water resistance of the hose outer skin: The RT series employs a highly abrasion-resistant outer covering (high molecular weight PE film). → Ideal for piping that is prone to wear and tear. → Suitable for piping exposed to water, oil, and various environments.
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basic information
■Specifications Series: Water - Glycol, Water, High Water Content, Mineral Oil Compatible Rubber Hose RX/RT Applicable Fluids: Mineral Oil, Water, High Water Content, Water - Glycol Fluid Temperature Range: (Mineral Oil) -40℃ to +100℃ (Water, High Water Content) 0℃ to +60℃ (Water - Glycol) -40℃ to +60℃ Recommended Ambient Temperature: (Mineral Oil) -40℃ to +70℃ (Water, High Water Content) 0℃ to +70℃ (Water - Glycol) -40℃ to +70℃ Minimum Burst Pressure: 4 times the maximum working pressure Inner Tube: Oil and Water Resistant Glycol Synthetic Rubber Outer Cover: RX21/RX28 (Weather Resistant Flame Retardant Synthetic Rubber), RT07/RT21/RT28 (Ultra High Molecular Weight Polyethylene Coating)
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P3
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For more details, please refer to the catalog or feel free to contact us.
Detailed information
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RX/RT lineup Inner diameter: φ6.3 to φ50.8 Maximum operating pressure: 7/21/28 MPa
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RX/RT Reinforcement Layer ○Structure Inner Tube Rubber… Seals internal fluid → The RX/RT series uses rubber that suppresses corrosion. Reinforcement Layer… Ensures hose pressure resistance → There are wire braid and wire spiral structures. Outer Rubber Cover… Protection from external environments → Flame-retardant rubber is used; the RT series is protected by a high molecular weight PE film that is resistant to abrasion, oil, and water.
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Company information
Kozu Transmission Machinery Co., Ltd. is a top-class specialized trading company for industrial equipment in Japan. Countless machines in the industrial sector are in operation... and our products are vital in their drive, transmission, and control parts. We also contribute to the faithful execution of operations in FA and CIM. Since our founding in 1951, we have expanded our range of products not only in transmission components but also in response to customer needs, broadening our offerings to include control systems, ensuring we have everything necessary for transmission. With the motto of being a "trustworthy company," we have established a unique system to respond quickly to customer requests while maintaining a customer-oriented approach. Additionally, we continuously capture the latest product information and provide it to our customers, as well as making proposals to manufacturers. Moving forward, we aim to continue our daily efforts for improvement without forgetting our original intentions.