Spiral Steel Rigid Centralizer of API Standard

• Customized: Customized
• Certification: ISO, API
• Usage: Well Drilling Machinery
• Material: Rigid/Nylon/Cast Aluminum/Idler Wheel
• Type: Petroleum Drilling Tool & Accessory
• Rig Type: AC Electric Trailer Rig
• Model NO.: ZS
• Drilling Depth: 9000m
• Tractor Hoist Type: Crawler Tractor Hoist
• Offshore Unit Type: Jack-up Drilling Rig
• Drill Bit Size: 9 1/2 Inch
• Drill Bit Blade: 6
• Transmission System: Mechanical
• Power Type: Electric
• Color: Black/ Red/ as Requested
• Transport Package: export packing
• Specification: API
• Trademark: Zhongshi
• Origin: China
• HS Code: 84314310
• Production Capacity: 100000/year

Product Description

Zhongshi brand Spiral Rigid centralizer has distinguished features:

Spiral Rigid Centralizer is a cast steel solid centralizer that is suitable for use in open hole consolidated formations or cased hole applications.

The outside diameter is generally 5" to 25" smaller then the nominal hole size making it suitable for applications where medium to large annular conditions exist.

Long life span and economic in price

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Non-weld casing centralizer

Model (in)	Hooping In-Dia. (mm)	Hooping thickness (mm)	Hooping Height (mm)	Total Length (mm)	Max. Out-Dia. (mm)	Spring Pieces
5-1/2*8-1/2	142-148	3-5	90-120	650±50	225±5	5
7*9-5/8	181-186	3-5	90-120	650±50	255±5	6
7*8-1/2	181-186	3-5	90-120	650±50	235±5	6
8-5/8*12-1/4	223-228	3-5	90-120	650±50	330±5	8
9-5/8*12-1/4	250-255	3-5	90-120	650±50	330±5	8
10-3/4*12-1/4	274-276	3-5	90-120	650±50	330±5	9
13-3/8*17-1/2	342-347	3-5	90-120	650±50	450±5	11
18-5/8*24	476±1	3-5	90-120	600±50	610±5	12
20*26	510±1	3-5	90-120	600±50	660±5	12

Weld casing centralizer

Model (in)	Hooping In-Dia. (mm)	Hooping Thickness (mm)	Hooping Height (mm)	Total Length (mm)	Max. Out-Dia. (mm)	Spring Pieces
5-1/2*8-1/2	142-148	5-7	50-60	650±50	225±5	5
6*8-1/2	154-158	5-7	50-60	650±50	255±5	5
13-3/8*17-1/2	342-349	8	50-60	580	450±5	6
20*26	510-518	8	50-60	650±50	670±5	10