Product Feature                                                                          

Rotary Joint for the Truck Mounted Crane Spare parts,Construction machinery parts

The introduction of the central rotary joints:

Hydraulic central rotary joints are playing a key role in the entire hydraulic system for excavators, cranes, graders and other construction machinery. It connects the fixed pipe and rotating part in the hydraulic and pneumatic system and creates a dynamic sealing as well as a free rotation between the upper and lower parts. The capacity of our  hydraulic central rotary joint applications are varied from 0.8 T - 40 T. 

Specifications                                                                             

1.    working channel: high pressure channel 25Mpa:2,3,4,5,6,7

                 low pressure channel 4.5Mpa :1

2.Temperature range: -20℃~+90℃

3.Viscosity range: 2.8~380mm/s(hydraulic oil)

4.Rated flowing speed: 2,3,4,5,6,7 channel is 75L/Min

                     1 is 25L/min

5.  Rotary Speed: max15r/min

6.Usage: mainly used full hydraulic truck mounted crane/truck crane, totally 7 channel, rated working pressure is 25Mpa

Service commitment                                                                    

<1> Warranty

Q: There are so many suppliers from China, how to identify the quality?

A: All parts that we sell enjoy 3 to 12 months warranty; if any parts breaks during warranty, just offer us the proof. We'll resend you new one!

<2>Delivery

Q: What if parts we order from you are lost during delivery?

A: We'll resend the parts!

3.Lead time

Q: How many days it takes before you deliver the goods to us?

A: We have most easily-damaged parts in stock, for small goods, we could deliver you the goods after order confirmation and receving the payment; for large quantity, we need 1 or 2 more days to order wooden box or pallet, 2-3 days to book flight/vessel and deliver the goods to named port/airport.

Shandong Dorson Hydraulic Co.,ltd (former name Jining Automobile Spare Parts Co.,ltd, established in 1956) which developed into private joint-stock company that specialized in producing the excavator parts including idler cushion, front idler, sprocket, track roller, carrier roller, rotary joints, hydraulic redirector,  cycloid motor, one-piece multi-way valve, central rotary joints since 1998.

Shandong Dorson Hydraulic Co., ltd located in Jining City, Shandong Province —— the home town of Confucius and Mencius &the country of Courtesy. our company is a professional manufacture engaged in research &development, production and sale which founded by modern enterprise system. Covers an area of 40,000 square meters, we staff more than 200 skillful personnel including 120 with high education and equipped with advanced production,testing& inspection equipments.

Shandong Dorson Hydraulic Co., ltd adhere to the principle that“winning the market with our sincerity, meeting the challenge with our quality, broadening the market with our service” We are dedicated to revitalizing this national industry.