High heat exchange efficiency and eradication of leaks Hydraulic Oil Cooler applied to hydraulic pumps
The Hydraulic Oil Cooler is placed in the cooling water circuit and uses the temperature of the cooling water to control the temperature of the lubricating oil. When the temperature of the lubricating oil is high, it is cooled by the cooling water, and when the engine is started, the heat is absorbed from the cooling water to rapidly increase the temperature of the lubricating oil. The oil cooler consists of an aluminum alloy cast casing, front cover, rear cover and copper core tube. In order to enhance cooling, heat sinks are installed on the outside of the tube. The cooling water flows outside the tube, the lubricating oil flows inside the tube, and the two exchange heat. There are also structures that allow oil to flow outside the tube and water to flow inside the tube.
Technical data of Hydraulic Oil Cooler:
| Material description | Standard water coolers | Seawater coolers | others | |||||||||
| Cooling water pipe | Copper-nickel 90/10 (Cu Ni 90/10) | Copper-nickel 90/10 (Cu Ni 90/10) | Red copper/stainless steel 1.4404(AISI316L) | |||||||||
| Shell, plate, bracket, bypass valve | Steel (ST) | Steel (ST) | ||||||||||
| End cover | Cast iron (GG25) | Copper plated nickel | Stainless steel 1.4408 (AISI316) | |||||||||
| Fin-plate | Aluminum (Alu) | Aluminum (Alu) | Red copper/stainless steel 1.4301 (AISI304) | |||||||||
| Tube plate | Steel (ST) | Copper-nickel 90/10 (Cu Ni 90/10) | Stainless steel | |||||||||
| sealing | Flat gasket C 4400 | |||||||||||
| Model type | Flow in shell | Water flow | ||||||||||
| Components | 1 channel | 2 channel | 4 channel | |||||||||
| CU | CuNi | VA | CU | CuNi | 1.4404(AISI316L) | CopperCU | CuNi | 1.4404(AISI316L) | ||||
| RN60 | 75 | 70 | 105 | 23 | 35 | 54 | - | - | - | |||
| RN80G/F | 225 | 90 | 135 | 202 | 45 | 67 | 100 | 22 | 34 | 51 | ||
| RN125G | 330 | 206 | 310 | 465 | 103 | 155 | 232 | 51 | 77 | 115 | ||
| RN125F | 400 | 206 | 310 | 465 | 103 | 155 | 232 | 51 | 77 | 115 | ||
| RN175 | 850 | 410 | 614 | 921 | 205 | 307 | 460 | 102 | 154 | 230 | ||
Shanghai Reijay Hydraulic Transmission Technology Co. Ltd. was established in 2003. We are committed to providing the most advanced mechanical transmission components, hydraulic group accessories and heat exchange products (heaters and coolers). To better satisfy special demands from customers, we can provide non-standard design, product invention, shafting torsional vibration calculation, simulation system testing and related professional software support.
More than 40% of the employees in Reijay nowadays are professional engineers (including senior engineers) with bachelor’s degrees or above. At the same time, we are glad to have 8 senior product application engineers and development engineers (including a PhD in Machinery who studied in Germany before). Reijay has established cooperation with many well-known universities and research institutes in dynamic simulation analysis, motion, shock, dynamics, vibration, strength, and other reliability tests. Furthermore, Reijay also cooperates with some research institutes enterprises in development partnerships and industrial and mining application tests.
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