日立EX200-5液压主泵 – 中国再制造（合肥总成：9150726 / 9152668）

বর্ণনা

বিবরণ তথ্য

১. মূল বৈশিষ্ট্য ও সুবিধা

• Precision‑remanufactured for Hefei‑assembled EX200‑5 – This twin pump set (9150726 / 9152668) is specifically rebuilt to Hitachi‘s factory specifications for the locally produced (Hefei) EX200‑5 excavator. Every critical component – cylinder block, piston assemblies, valve plate, swashplate, bearings, and seals – is either renewed or replaced with new, high‑quality parts. The result is restored hydraulic performance at a fraction of the cost of a new genuine pump set.

• 原装日立串联轴向柱塞结构 – The two pumps work together as a variable displacement tandem system, powering travel, swing, boom, arm, and bucket circuits independently. This design ensures smooth, coordinated multi‑function operation without internal flow loss – exactly as your EX200‑5 performed when it left the Hefei assembly line.

• 恢复20吨级动力 – 再制造后，泵组额定工作压力达31.9 MPa（约4,630 psi），间歇峰值可达34.3 MPa（约4,975 psi）。在额定发动机转速下，总流量约为360‑400 L/min。您的挖掘机将重获完整的挖掘力、快速循环时间、灵敏回转及强劲行走能力。.

• 集成式负载敏感功率控制 – 工厂功率控制（负载敏感）系统已完全翻新。它持续将泵输出与实际工作需求相匹配，降低燃油消耗，防止突然负载下发动机熄火，并延长整个液压系统的使用寿命。集成先导齿轮泵也已全面再制造。.

• 高性价比的全新原厂件替代方案 – A new Hitachi main pump set for a 20‑ton excavator is a major investment. Our remanufactured 9150726 / 9152668 gives you the same fit, form, and function at a significantly lower price, without sacrificing reliability. Each pump is dyno‑tested before dispatch.

• 直接螺栓固定式替换 – Mounting flanges, drive shaft splines, and hydraulic port configurations are restored to original Hefei‑spec Hitachi dimensions. No modifications, no adapters, no fabrication – your mechanic unbolts the old pumps and bolts these in.

• 发货前视觉确认 – 在包装前，我们会向您发送实际再制造单元（安装法兰、花键、接口螺纹、铸件、整体状况）的清晰高分辨率照片。您确认后发货——我们绝不盲目发货。.

• দ্রুত ডেলিভারি – 从我们广州仓库发货，5–8个工作日。月供应能力300台，支持单台或批量订购。.

২. আবেদনসমূহ

The remanufactured Hitachi 9150726 / 9152668 main pump set is ideal for the Hefei‑built EX200‑5 (20‑ton class) used in demanding job sites:

• 重型建筑与基础设施 – 公路开挖、大坝建设、桥基施工、大规模土方工程。翻新后的串联泵可提供同步动臂、斗杆及行走动力，无内泄——即使长时间作业，也无动力衰减或响应迟缓。.

• 采石与骨料生产 – 在磨蚀性粉尘条件下进行卡车装载、料堆管理和物料搬运。新的轴承、密封件和耐磨板确保泵在旧件已失效的工况下仍能可靠运行。稳定的流量和压力意味着更快的循环时间和更低的燃油消耗。.

• 采矿支持 – 现场清理、道路维护、排水工程和设备平台平整。负载敏感控制在轻载循环期间减少燃油消耗，在数千小时的运行中节省成本。.

• 拆除与废料处理 – 冲击载荷和振动是常态。我们的再制造工艺更换了所有磨损部件，恢复了泵承受恶劣、不可预测工况的能力。.

• 设备租赁车队 – 20 吨级挖掘机是租赁市场的常用设备。再制造泵组提供可预测的使用寿命（3,000–5,000 小时），其成本使得预防性更换在经济上合理 – 避免了昂贵的租赁中途故障、拖车费用和客户投诉。.

• 林业与土地清理 – 陡坡、倒下的树木、隐藏的障碍物。集成的功率控制可防止在突然的负载尖峰下发动机熄火，为锯、抓斗和粉碎机维持稳定的液压动力。.

3. 为何选择 হংতেংদা পার্টস – Remanufacturing Without Compromise

At Hongtengda Parts, we have been remanufacturing hydraulic pumps for Hitachi excavators since 2001. We know that a main pump failure on your EX200‑5 stops your job site completely. Our remanufacturing process is not a “clean and reseal” – it is a factory‑grade restoration.

Our 6‑step remanufacturing process:

1. – 单元被拆解为单个部件：轴承保持架、行星架、齿圈、主轴、活塞块、缸筒、配流盘、液压马达部分和制动器组件。 – Each pump is stripped down to individual components: cylinder block, piston assemblies, valve plate, swashplate, bearings, shaft, housing, and control valves.

2. 清洁与裂纹检测 – All parts are thoroughly cleaned and inspected for cracks using dye penetrant testing on critical castings. Irreparable parts are scrapped.

3. 磨损部件更换 – All seals, O‑rings, bearings, and gaskets are replaced with new. The cylinder block and valve plate are re‑ground to restore flatness. Piston assemblies are matched as a set and replaced if worn. The swashplate surface is reconditioned.

4. 精密重新组装 – Components are reassembled using OEM torque specifications. Clearance tolerances on the cylinder block / valve plate interface are verified.

5. 液压测试台验证 – The completed pump set is mounted to a test stand and run through its full pressure and flow range. We verify operating pressure (up to 31.9 MPa), flow rate (approx. 360‑400 L/min total), case drain leakage, and power control response. A test report is available upon request.

6. 最终质量检查与包装 – The pumps are painted, fitted with protective port caps, and packed in a heavy‑duty wooden case for export.

Why our remanufactured pump outperforms cheaper “rebuilt” units:

• New bearings and seals – Many budget rebuilders reuse old bearings to save cost. We do not. All rotating components get new bearings – the single most important factor for pump longevity.

• 精密研磨的磨损表面 – The cylinder block and valve plate are re‑ground to restore flatness. A lapped surface is essential for low internal leakage. Without it, the pump will overheat and lose power within weeks.

• Full test report – Upon request, we provide a test report showing pressure, flow, case drain, and temperature measurements. You see the data before you buy.

您未购买的是： A used pump with new paint and a set of O‑rings. Our remanufactured pump set is restored to meet or exceed OEM performance standards – at a price that makes sense for your older EX200‑5.

• 超过25年的行业经验 – Founded in 2001, we have remanufactured thousands of pumps for Hitachi, Caterpillar, Komatsu, Kobelco, Volvo, SANY, and many other brands.

• 90% স্টকের উপলব্ধতা – 9150726 / 9152668 pump sets are in stock as remanufactured units, ready for dispatch from our Guangzhou warehouse.

• 24小时内发货 – 从我们广州枢纽到您的货运代理只需 1 天；国际订单在 24 小时内发货。.

• 发货前视觉确认 – We never ship a pump blind. You receive clear photos of the actual units before packing – you approve, we ship.

• প্রযুক্তিগত সহায়তা – Send us your EX200‑5 (Hefei) machine serial number and photos of the old pumps. We confirm compatibility and provide installation guidance within 2 hours.

Send us your Hefei‑built EX200‑5 machine serial number and photos of the old pumps – we will verify fitment, provide a quote, and document our pre‑shipment inspection within 24 hours.

Critical installation tip for the 9150726 / 9152668 remanufactured pump set:
– 壳体泄油管 每台泵上的壳体泄油管必须畅通无阻。堵塞的壳体泄油管会在首次启动时立即冲毁轴封。.
– 在安装再制造泵之前，请冲洗整个液压系统并更换所有滤芯。来自故障泵的污染物会像损坏新泵一样迅速地毁掉再制造单元。.
– 在每个液压连接处使用新的 O 型圈和密封垫圈。重复使用密封件必定导致泄漏。.
– 安装后，在泵处于中位时，让发动机以低怠速运转 2-3 分钟，然后缓慢循环每个功能（动臂、斗杆、铲斗、回转、行走）以排出系统中的空气。.
– 检查泵与发动机飞轮壳的对中情况 – 不对中会导致轴承过早失效和轴封泄漏。.

保修说明： 保修期根据产品详情为3至6个月。. 对于原装二手或再制造零件，我们不提供保修服务。. 我们的价值是预先交付的：精心的再制造、彻底的测试和发货前的视觉确认。对于需要保修选项的客户，我们可以提供全新的后市场单元报价 – 请咨询我们的销售团队。.

The main hydraulic pump set is the heart of your EX200‑5‘s hydraulic system. Our remanufactured 9150726 / 9152668 gives you restored 20‑ton class performance at a cost that keeps your budget intact – not with shortcuts, but with a genuine factory‑grade restoration. Send us your Hefei EX200‑5 machine serial number – we will confirm compatibility and provide a quote within 24 hours.