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Tiger Rig Wellhead Handing Tools TIGERRIG Brand 17-MDP Type Hexagonal Square Drive Roller Kelly Bushing
Chengdu Zhonghang Machinery Co., Ltd( brand: tiger rig) was established in 2005 year, and reformed into a private enterprise in 1990.The company lies in Xindu town, Chengdu City, which is the most vigorous, and most potential city at the west of China. Tiger rig devoted itself to the research on the wellhead tools, and the great-leap-forward development. Drill pipe power tong designed and manufactured by the company is a necessary and symbolic tool for mechanized wellhead operation; a batch of automation wellhead tools represented by Iron roughneck developed in recent years creates the new era for drilling machines on the wellhead. The company is a specialization company with longest history, complete varieties, and strongest capacity for developing and researching wellhead tools and equipment. At present, the company has formed more than 50 series and more than 100 specs of products, which have been widely used in all oilfields in China, and have been export to Europe, America, Southeast Asia, the Middle East, Central Asia, North Africa and other regions.
We can supply wellhead product as such drilling pipe power tong, casing power tong, hydraulic power tong, air winch, hydraulic cathead, rotary cathead, casing guide, deadline anchor, Kelly bushing, master bushing, Kelly or swivel spinner, casing tubing coupling bucking unit, Elevator, Spinners, slip ,clamp and so on.
Our company owns reliable quality administration system, and has obtained ISO9001,ISC14001, GB/T28001, GOST and API Q1 certificates. Our products have been grant the right to use the Official Monogram of API Spec 7K and API Spec 8C.
Adhering to the "people-oriented, technology leadership, honest and quality excellent, win-win cooperation, the customer first" business idea, and carefully creating "tiger rig" brands. Firmly aimed at the international advanced technology and management philosophy for petroleum machinery. We will make our efforts to supply the best surface operation tools and the drilling and producing equipment for the oilfields in China and the world.
We are primary supplier of CNPC (china national petroleum company).
We can guarantee the successful delivery time for your overseas bidding projects, and guarantee the purchase of China's first-class oil equipment, and make sure your end user are satisfied with our wellhead equipment and tools.
If you need to buy a wellhead tool with stable quality and more than 20 years of history, please feel free to contact us.



Roller kelly bushing is a necessary tool for drilling. It is to drive Kelly spinner by matching with master bushing. Through rotating of four rollers, the friction between rollers and Kelly pipe is reduced and service life is extended. For different sizes of Kelly pipe and hexagonal pipe only need to change corresponding rollers. To connect with rotary table, there are two drive styles (square and pin). The product is designed and manufactured according to SY/T5074 and API Spec 7K “Specification for Drilling and well Equipment
HDS | 27-HDP | 20-HDP | MDS | 20-MDP | 17-MDP | LDS | ||
Type | Heavy | Medium | Light | |||||
Max. torque | N. m | 32365 | 22555 | 13729 | ||||
ft. lbf | 23871 | 16636 | 10126 | |||||
Drive mode | Square | Pin | Square | Pin | Square | |||
Square | in | 3-6 | 21/2-51/4 | 21/2-41/4 | 21/2-51/4 | |||
Hex | in | 3-6 | 3-41/4 | 3-41/4 | ||||
Size | mm | 630*630*740 | 630*630*780 | 493*493*696 | 510*510*720 | 458*458*700 | 508*508*700 | |
in | 24.8*24.8*29.1 | 24.8*24.8*30.7 | 19.4*19.4*27.4 | 20*20*28.3 | 18*18*27.5 | 20*20*27.5 | ||
Weight | kg | 700 | 730 | 670 | 500 | 460 | 340 | 400 |
lb | 1540 | 1610 | 1470 | 1100 | 1012 | 750 | 808 | |







What buyers need to do?
1.Please provide the original brand, model and drawing number of accessories of the equipment you are using. If you do not know the specific name of the accessories of the wellhead equipment or tools, you can provide the pictures as the supporting evidence, and we will transfer them to the technology department for verification.
2.We will reply within 1 hour after receiving your inquiry for wellhead equipment or tools accessories, and offer you in the next day.
3.Please provide office word format, Not JPG pictures. We need to translate them into
Chinese. If it is JPG format, the quotation time will be extend by 1-2 days. Try to provide
the original bidding document as a reference. If there is any doubt, we will mark it to
facilitate you to check the name and size of the real wellhead tools accessories.
4.If you need accurate weight and size, please indicate them in the mail together, and we will provide CIF price to facilitate your freight calculation.
5.For wellhead equipment accessories, we provide export fumigation free wood packaging, and the cylinder liner is frame packaging. If you need iron box packaging, please inform in advance.
1.We will reply to your inquiry within two hours after receiving it, and arrange a special person to contact you. Please leave WhatsApp, WeChat and other communication tools as far as possible, so as to find yourself easily. If there is no response, please send a second letter.
2.Our company has a professional technical team and professional translators (Spanish, Arabic, Russian, and English). If you need to communicate with Russian service personnel, please inform them in advance by email.
3.We will provide the most competitive price in the Chinese market according to the requirements of your bidding documents to ensure the successful completion of your bidding project, so please give us sufficient preparation time, preferably the latest bid closing date.
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