^{20M Material Handling Cranes , Mini Excavator Long Arm Komatsu PC850}

<sup>Dongguan Haijing 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.

Description:
Long reach excavator is large work range, can fulfill lots of projects that need larger workrange requirements for excavators.

Long reach boom is very popular in lots of constructions,such as subway construction,dam construction,etc
Long reach boom also very popular and high efficient in dredging work,dredging river,dredging sea,dredging port,etc</sup>

<sup>Our Advantages:
1. We have more than 10 years experience in customizing all kinds of long boom for all kinds of excavators.
And we have detailed dimensions of most excavators,so just give us the excavator model is ok.</sup>

^{For this Komatsu PC850 Excavator,we also have detailed dimensions.}

^{2. Main sheet Material of this Komatsu PC850 excavator long reach 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.}

<sup>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.

4. Our Welding is protective gas welding,the protective gas is 80% Argon and 20% CO2 mixed.</sup>

^{5. If your long boom need extra auxiliary hydraulic pipe for breaker or other attachments,we also can prerpare for you.}

^{And the auxiliary pipe also have stop valve in both end,it's easy for replace attachments.}

^{6. For big excavator long material handling arm,we usually adopt cast base,much more stonger.}

^{7. 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
Stick cylinder:Can match original stick cylinder to save cost,if you need,we also can prepare.
For bigger excavator(tonnage higher than 50ton),we advise use the original stick cylinder,original cylinder quality much more better.
This Komatsu PC850 long excavator boom,the stick cylinder match the original stick cylinder.}

^{Specification of this Komatsu PC850 Excavator 20m Long Reach Boom :}

^{-For bigger excavator long material Handling boom arm,we supply all kinds of customize service.}

^{Specification of our standard long reach excavator boom arm:}

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

<sup>Application:
1. We customize this 2 kits Komatsu PC850 Long material handling boom arm for a Middle east customer.</sup>

<sup>2. Customer use the long boom for port dredging projects.

Workshop pictures:</sup>

^{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.}