• Model NO.：RC
• Material：Cast Steel
• Type：Centralizer
• Transport Package：Wooden Case
• Specification：9 5,8
• Trademark：zhongshi
• Origin：Henan Province of China
• HS Code：73079900
• Production Capacity：1000PC,Month

Basic Info.

Model NO. RC Material Cast Steel Type Centralizer Transport Package Wooden Case Specification 9 5/8 Trademark zhongshi Origin Henan Province of China HS Code 73079900 Production Capacity 1000PC/Month

Product Description

CASING ROLLER CENTRALIZER Consists of rigid body, on which machined Straight Blades and spiral blades. There are modified alloy steel, fully heat treated rollers fixed on every Straight or spiral blades. Because of rigid body and rolling friction between the rollers and inside of well or casing, the capability of the roller Centralizer is better than others of all. Roller centralizers are mainly used for big high Roller, high deviated wells and horizontal wells, to centre casings.

Roller centralizers can also remove wellbore cake and  improve mud replacement efficiency etc. . Rollers provide superior wear resistance and have been proven to remain functional throughout the life of the well and can aid in casing/tubing retrieval. Precision-machined inside diameter fits over the casing through the complete API tolerance range, providing excellent rotational performance in mud. When running casing through open hole, the system's smaller roller-contact area reduces the risk of differential sticking and maintains standoff .
The roller/axle relationship ensures that axle shear stresses remain within elastic limits, preventing permanent deformation. Axles are crimped in place, eliminating the welding process, while ensuring the rollers cannot break free and fall into the wellbore. The system's high-quality construction materials improve high-pressure/high-temperature capabilities.

Specification:

Size(inch)	Inner Diameter(mm)	Outer Diameter(mm)	Height(mm)
13-3/8	343	400	130
10-3/4	276	308	120
9-5/8	247	308	120
7-5/8	197	243	120
7	180	212	120
5-1/2	143	213	120
5	130	151	120
4-1/2	117	148	100
4	104	118	80