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중국 AT227318 AT139444 오일 기어 피스톤 펌프 유압 펌프 AT187383 - 톤키 기계

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중국 AT227318 AT139444 오일 기어 피스톤 펌프 유압 펌프 AT187383

AT227318 Hydraulic Pump

Standard: John Deere Hy-Gard ™ 유압 오일 (또는 방지 첨가제가있는 동등한 미네랄 기반 오일, ISOS VG 46/68).

온도 범위: -15° C ~ +80 ° C (표준 NBR 씰); -10° C ~ +110 ° C (FKM 씰).

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AT227318 Hydraulic Pump

배수량 12.5 cm³/rev (calibrated to John Deere OEM standards) Fixed volume of hydraulic oil delivered per shaft rotation—defines flow rate at a given speed (no adjustability, ideal for constant-load tasks).
Pressure Ratings Continuous Operating Pressure: 16 MPA (160 술집)

Intermittent Pressure: 20 MPA (200 술집)

– 피크 압력 (≤3 seconds): 24 MPA (240 술집)

Medium-pressure tolerance for typical agricultural tasks (e.g., lifting plows, operating loaders) without excessive wear.
속도 – 정격 속도: 1,800 RPM (matches John Deere tractor PTO speeds)

– 최대 속도: 2,500 RPM

– 최소 속도: 500 RPM

Compatible with tractor power take-off (PTO) or engine-driven systems; minimum speed prevents cavitation (air bubble formation).
유량 At 1,800 RPM: 22.5 L/분 (12.5 cm²/회전 × 1,800 rpm ¼ 1,000)

At 2,500 RPM: 31.25 L/분

Linear flow output—critical for consistent actuator speed (e.g., smooth loader lifting/lowering).
Efficiency Volumetric Efficiency: ≥88% (at rated pressure/speed)

Mechanical Efficiency: ≥82%

Total Efficiency: ≥72%

Balances energy use and performance; sufficient for non-high-precision agricultural applications.
무게 ~7.5 kg Lightweight for easy installation/retrofit in tractor engine bays or implement mounts.

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