Roller Centralizer Spiral Vane Roller Steel Solid Rigid Centralizer
Product Description
*The roller centralizers are designed in rigid body with straight or spiral blades.
*Rollers provide low drag to get casing, liners, or screens to bottom successfully with reduced rig time and costs.
*Minimal roller-contact area in open hole applications reduces the risk of differential sticking and provides optimal standoff for increased operational efficiency.
*The roller centralizer is used in deviated and horizontal wells.
| Product name | Roller Centralizer |
| Material | Steel |
| Size | 4-1/2″×6″-13-3/8″×17-1/2″ |
Size Information
| Specification | Casing size (mm) | Hole Size (mm) | Inner Diameter (mm±2) | Outer Diameter (mm±2) |
| 4-1/2″×6″ | 114 | 152 | 118 | 152 |
| 5-1/2″×8-1/2″ | 140 | 216 | 142 | 216 |
| 7″×8-1/2″ | 178 | 216 | 182 | 216 |
| 9-5/8″×12-1/4″ | 244 | 311 | 249 | 311 |
| 13-3/8″×17-1/2″ | 340 | 445 | 344 | 445 |
Packing&Shipping
Packing:polywood case or customized.

Cementing Rubber Plug Cementing Basket
Shijiazhuang DiBo Petroleum Machinery Co., Ltd.
Our casing centralizer have already passed the ISO9001 system certification, and the quality of our product exceed API 10D standard. To guarantee new products R&D, we adopt CAD. UG design and modular design to shorten products developing circle. With electronic universal testing machine. Hardmeter and automatic impact testing machine we could control quality of the raw material and finished products properly.
Our products are widely used in many oilfields and committed to effective and qualified solutions for oilfield down-hole operation.
Welcome to you.
Shijiazhuang Dibo Petroleum Machinery Equipment Co., Ltd. has been focusing on the production and processing of petroleum machinery parts since its establishmen, it has injection casting and machining workshops; it has 2 processing centers, more than 10 various CNC, ordinary lathe CNC milling machines, and CNC drilling machines; High-pressure injection molding machines, gravity casting machines, vacuum consumable furnaces, punches, forklifts, cranes and many other production equipment; with electric welding machines and automatic welding equipment, it can complete the processing and production of various underground tools.
Exhibition
At present, we often join in for China Cippe,Russia exhibition,USA Exhibition ,many customers choice us in these exhibitons. Welcome to your inquiry and cooperation.

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