Lifa Chen Propeller Repair & Retrofit | Marine Propeller Straightening, Bore Repair And Blade Profile Modification

Marine propellers work in seawater for long periods. Subject to salt spray erosion and hard object impact, they are prone to blade deformation, corroded blade surface, hub bore wear and other defects. Such damages will alter the original pitch, resulting in unstable thrust, hull vibration, higher fuel consumption, increased load on stern shaft and main engine, and bring risks to navigation safety.
船舶螺旋桨长期浸泡海水中,受盐雾冲刷,硬物撞击,容易出现桨叶变形,叶面腐蚀缺损,轴孔磨损等问题.部件损伤会破坏原有螺距,造成推力不稳,船体震动,油耗升高,加重艉轴和主机负荷,影响航行安全.

Zhoushan (Wuyang) Donghai - Chen Lifa Propeller provides one-stop propeller repair and retrofit services. Benefiting from over 40 years of industry experience, we conduct comprehensive non-destructive testing and pitch measurement after receiving the propeller. We inspect cracks, deformation, hub bore wear and other defects, evaluate repairability and make customized processing plans. All operations comply with specification requirements of CCS, RINA, BV and other classification societies.
舟山市 (五洋) 东海 - 陈利发螺旋桨提供一站式螺旋桨维修与旧桨改造服务.凭借我厂 40 多年行业积淀,收到待修桨后,先做全面探伤和螺距检测,排查裂纹,变形,轴孔磨损等缺陷,评估修复可行性,定制加工方案,全程遵循 CCS,RINA,BV 等船级社规范要求开展加工.

Our regular repair scope includes straightening deformed blades, welding and polishing corroded or damaged blade sections, and hub bore machining to restore original dimensions and fitting precision.
常规维修包含：变形桨叶校正整形,桨叶缺损腐蚀补焊打磨,轴孔修复加工,恢复螺旋桨原有尺寸与配合精度.

Besides standard repair works, we undertake old propeller retrofit projects. We can adjust blade profiles and optimize pitch according to the actual power and operating conditions of customers' vessels. It enables the existing old propeller to match new power system without purchasing a brand-new propeller.
除基础维修外,我们支持旧桨改造项目,可按照客户船舶实际需求,重新调整叶形,优化螺距,让原有旧桨适配船舶新的动力或者航行工况,无需直接采购全新螺旋桨.

Each working procedure is inspected item by item in strict accordance with drawings and classification society standards to guarantee machining accuracy. The repaired or retrofitted propellers regain good propulsion performance, reduce navigation vibration and noise, cut fuel consumption and extend service life. Compared with buying new propellers, old propeller retrofit greatly reduces vessel outfitting cost. Relevant inspection records can be supplied upon request to deliver cost-effective propeller solutions for clients.
所有工序逐项核验,严格对照图纸与船级社规范,保证加工精度.经过维修或改造后的螺旋桨,恢复良好推进性能,降低航行震动与油耗,延长桨体使用寿命.旧桨改造相比换新,能够有效降低船舶配套成本,我们可按需提供相关检测记录,为客户提供高性价比的螺旋桨解决方案.