Bow springs made of spring steel which has been heat teated and hardened tempered to ensure proper and consistent spring characteristics.

End collar hinges are folded toward inside. This way will minimize the collar stretch to occur when centralizers encounter tapers, commonly found in certain type of pipe connections.

A reinforcing rib stamped into the end collar. This way will strengthen and preserve it's round configuration during transport.

Several different spring bow heights that are available to accommodate most of casing-to-hole configuration.

Centralizers with built-in stop devices as well as those uncommon sizes are available based on request.

  Oilfield Integral Casing Centralizers sizes of 13-3/8"

  Oilfield Integral Casing Centralizers sizes of 13-3/8"

  Oilfield Integral Casing Centralizers sizes of 13-3/8"

  Oilfield Integral Casing Centralizers sizes

Technical Parameters of API 10D Casing Centralizer/Bow Centralizer/Integral Centralizer/Weaved Centralizer

  API Certificate Oilfield Integral Casing Centralizers sizes of 9-5/8"

  Oilfield Integral Casing Centralizers

Our products and services are closely related to oil drilling and oil well cementation. Our products include integral casing centralizer, welded casing centralizer, bow spring centralizer, float shoe, float collar, Suck Rod Pump, api pumping unit, Thread Protector, Thread Gauge, Api Valve Ball and Valve Seat, coupling and pump plungers

The predecessor of Puyang Zhongshi Group Co. Ltd, was the 5th Machine Repairing Factory of Puyang Zhongyuan Oil field, Sinopec Corp. In 1997, after being restructured according to the modern corporate system, the factory was named Puyang Zhongshi Group Co.,Ltd.

With registered capital of USD 10.15 million, Puyang Zhongshi Group is composed of 9 subsidiaries, including 8 manufacturers and 1 trade company. Zhongshi Group covers an area of 200,000 sq.m, including workshop area of 50,000 sq.m. Various kinds of production equipment values USD 6.5 Million. It has a strong mechanical processing capability.

Our leading products are pumping unit, tubing pump & sucker rod pump, cementing accessories, down-hole tools, wellhead (X-mas tree), drilling solid control series, pressure vessel ,camping house, air cannon, belt feeder and so on. They are mainly supplied to Central Asia, Southeast Asia, Africa and Middle East and many other countries.

Zhongshi Group has been the Tier One internet service provider of Sinopec. We passed ISO9001 quality management system certification and got approved to use API monograms on its oil machineries. So far, we have attained API 5CT, API 10D, API 11AX, API 11E and more are applying for.

With strong technical backup, reliable product quality, advanced marketing regime and good service system, this company wins popularity and recognition of vast consumers home and abroad.

We would like to faithfully cooperate with friends from all circles with classic products and service to achieve common development.

  Wooden case, standard export packaging, firm enough for long distance transportation. Oilfield Integral Casing Centralizers sizes of 13-3/8"