^{20 Meter Excavator Extension Arm 3400 Mm Fold Height Heavy Duty Dredging Work Purpose}

1. ^{Original excavator standard boom usually shorter with big bucket,but work range also very small range.}
2. ^{Long reach excavator is large work range,and very popular in lots of constructions,such as subway construction,dam construction,etc}
3. ^{Long reach boom also very popular and high efficient in dredging work,dredging river,dredging sea,dredging port,etc}

^Description:

^{1. We specialized in customizing all kinds of long boom for all kinds of excavators.}

<sup>We have detailed dimension of this CAT349D excavator,so just give us the excavator model is ok.
2. Main sheet Material of this CAT349D excavator long reach excavator material handling boom is Q345B + Q690D,the top and bottom cover plate of boom and stick is Q690D,and other sheet is Q345B,Pin’s material is 42CrMo4.
3. Before welding,we have use big edge milling machine mill the edge of the sheet.So the welding can go to the internal of the steel-sheet and make the structure have higher performance.</sup>

^{4. Welding is protective gas welding,the protective gas is 80% Argon and 20% CO2 mixed.}

^{5 For all long boom we produced,will supply follow parts:}

^{Bucket:1 pcs}

^{Linkage:1 kits}

^{Bucket cylinder:1 pcs}

^{Hydraulic pipe:1 kits}

^{Lubricant pipe:1 kits}

^{Counter weight(if need):1 pcs,for this CAT349 20 meter long boom,need 2 ton extra counter weight,as customer's requirements,we do no prepare,and customer prepare it themselves}

^{Stick cylinder:Can match original stick cylinder to save cost,if you need,we also can prepare}

^{6. If you need extra hydraulic pipe for breaker or other attachments,we also can prerpare for you.And the attachments pipe have stop valve in both end,it's easy for replace attachments.}

^{Specification of this 20 meter CAT349 long reach excavator Material handling arm:}

^{As customer requirements,we do not prepre the counter weight,customer prepare it themselves}

^{Specification:}

^{Above parameter is our standard parameters,if you need special design,we can customize for you.}

^Application:

^{1. This kit long boom was export to Sri Lanka.}

^{2. Customer use this 20 meter CAT349 long reach excavator Material handling arm for Anti wave dam building.}

^{Dongguan Hyking Machinery Co., Ltd. is located in Dongguan, Guangdong Province, a famous manufacturing city in China. Has a large number of high-precision processing equipment, such as plasma, CNC flame cutting machine, floor milling machine, large lathe / drilling machine, etc., is one of the domestic large-scale construction machinery parts manufacturers, the main products are: excavator claws, excavator and long arm, Demolition of the arm, shortening of the arm, grasping the wood, etc. The products are sold all over the country and exported to more than 30 countries. They have provided product supporting services for many large-scale projects such as subway construction, hydropower stations, nuclear power plants, municipal projects, river dredging, and tunnel projects.}

^{Hyking Machinery specializes in non-standard customized services. Customized products are suitable for all brands of excavators: Carter CAT, Komatsu PC, Hitachi ZX (EX), Kobelco SK, Hyundai R, Liebherr, Kato HD, Daewoo (Doosan) DH, Sumitomo SH, Case, Volvo EC, Sany, Xugong, Yuchai, Liugong, Xiagong, Longgong, Luxide, Shanzhong and so on.}

^{"Excellence, craftsmanship" is our belief. Based on customer feedback and field visits by technicians, we continuously improve and perfect products to provide customers with the most perfect service.}