Master Bushings

Master Bushings

Master bushings, kelly bushings and insert bowls of different kind are all available in our company. They are manufactured with high-quality alloy steel castings. These bushings and insert bowls are suitable for the rotary table with the size from 17 1/2 to 37 1/2 inch. Master bushings and insert bowls can also accommodate API standard rotary slip, drill collar slip, casing slip or roller kelly bushing.

Features:
  • Master bushings in our company are designed with cover. They work with kelly bushings to drive drill pipe.
  • Based on the different structure, master bushings have solid body and split body.
  • According to different type, the bushings boast models of MSS, MDSP, MSP and MSPC.
  • Master bushings, kelly bushings and insert bowls are all produced according to API 7K ISO9001:2008, GB/T 28001-2001 and GB/T 24001-2004-ISO14001:2004.

Specifications:

Bushing Type Rotary Table Size(in) Insert Bowls Handing Tubular OD (in)
MSS Solid Body and Split Body 17 1/2 API Bowl 1011 2 3/8-8 5/8
EXT. Bowl 1024
20 1/2 API Bowl 1011 2 3/8-8 5/8
EXT. Bowl 1024
27 1/2 API Bowl 1022 2 3/8-8 5/8
EXT. Bowl 1025
Insert Bowl 1026 9 5/8-10 3/4
MDSP Split Body Master Bushings 17 1/2 EXT. No.3 Taper 2 3/8-8 5/8
20 1/2 EXT. No.3 Taper 2 3/8-8 5/8
MSPC Solid Body 20 1/2 EXT. Bowl 1809 2 3/8-8 5/8
Bowl 1902 9 5/8-10 3/4
Body only 1805 11 3/4-13 3/8
27 1/2 Bowl 1810(No3) 2 3/8-8 5/8
Bowl 1904(No2) 9 5/8-10 3/4
Bowl 1903(No1) 11 3/4-13 3/8
MSP Split Body 27 1/2 EXT. No.3 Taper 2 3/8-8 5/8
MPCH Master Bushings 37 1/2 Bowl 6608(No3) 2 3/8-8 5/8
Bowl 6609(No2) 9 5/8-10 3/4
Bowl 6610(No1) 11 3/4-13 3/8
Advantages:
  • Pulling out or feeding off string can be done while rotating.
  • Because of their integral construction, master bushings cannot fly out or hurt you.
  • The bushings can be easily installed, maintaining good alignment.
  • Contact between kelly and roller is a rolling contact, so friction is lower, and drill pressure is accurate.
  • The master bushings have lower wear and long life.
  • Working condition of this master bushing is improved.

Founded in Aug. 2000, the company covers an area of more than 40,000m2. As a professional China master bushings manufacturer and supplier, our company also provides other types of bushings, such as kelly bushings, casing bushings and so on. All drilling tools and spare parts in the company are all accordance with ISO9001-2008, ISO1400:2004, GB/T28001-2011 and API Spec 7K, 8C.

Contact Us
Jiangsu Saifu Petrol-Machinery Co., Ltd
Address: No 36 Weihe Road, New Area of Economic Development Zone, Rudong, Jiangsu
Postcode: 226400
Email: globalsales2013@gmail.com