API 11b Grade C, K, D, HS Sucker Rod Sinker Bar for Oil Production

• After-sales Service: Yes
• Warranty: 1 Year
• Manufacturing Process: Casting
• Operation Pressure: Atmospheric Pressure
• Material: Alloy
• Transport Package: Bulk
• Model NO.: 7/8
• Specification: Carbon steel sinker bar, alloy steel sinker bar, e
• Trademark: ZX
• Origin: China

Product Description

Product Description

    Sinker bar has one elevator neck on one end, and pin threads on each end maybe sucker rod thread or polished rod thread, determined by the sucker rod string. It is a steel rod of a specified length, normally in a larger diameter than sucker rods, is provided in standard sizes with externally threaded ends offered to add weight and stability to the sucker rod string. An oil well uses only one sinker bar, and it is placed at the bottom of the sucker rod string. Sinker bars are made of high-quality hot-rolled carbon steel or Cr-Mo structural alloy steel. There are external threads, which are the same as that of sucker rods or polished rods, shoulders and wrench flats at both ends and a elevator neck at one end. There are six specifications: 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-5/8" and 1-3/4".

Product Parameters

Dimensions and Tolerances of Sinker Bars
Nominal Size		1-1/4 in.		1-3/8 in.		1-1/2 in.		1-5/8 in.		1-3/4 in.
		in.	mm	in.	mm	in.	mm	in	mm	in.	mm
With Sucker Rod Pin Threads
Sinker Bar Diameter	Size	1.250	31.75	1.375	34.93	1.500	38.10	1.625	41.28	1.750	44.45
	Tolerances	+0.000 -0.030	+0.00 -0.76	+0.000 -0.030	+0.00 -0.76	+0.000 -0.030	+0.00 -0.76	+0.000 -0.030	+0.00 -0.76	+0.000 -0.030	+0.00 -0.76
Pin Shoulder to Wrench Flat	Max. Size	0.750	19.05	0.750	19.05	0.750	19.05	0.750	19.05	0.750	19.05
of Wrench Flat (2 flats standard)	Size	1.000	25.40	1.000	25.40	1.3125	33.34	1.3125	33.34	1.500	38.10
	Tolerances	±0.03125	±0.794	±0.03125	±0.794	±0.03125	±0.794	±0.03125	±0.794	±0.03125	±0.794
Elevator Neck Diameter	Size	0.875	22.23	1.000	25.40	1.000	25.40	1.000	25.40	1.000	25.40
	Tolerances	+0.009 -0.018	+0.23 -0.46	+0.009 -0.018	+0.23 -0.46	+0.009 -0.018	+0.23 -0.46	+0.009 -0.018	+0.23 -0.46	+0.009 -0.018	+0.23 -0.46
Length of Sinker Bar	Size	240	6,096	240	6,096	240	6,096	240	6,096	240	6,096
		300	7,620	300	7,620	300	7,620	300	7,620	300	7,620
		360	9,144	360	9,144	360	9,144	360	9,144	360	9,144
	Tolerances	±2.000	±50.80	±2.000	±50.80	±2.000	±50.80	±2.000	±50.80	±2.000	±50.80
Length of Wrench Flat	Min. Length	1.250	31.75	1.250	31.75	1.250	31.75	1.250	31.75	1.250	31.75
Rod Pin Size (Nominal Size)		5/8		5/8		3/4		7/8		7/8
Length of Elevator Neck	Min. Length	4.000	101.60	4.000	101.60	4.000	101.60	4.000	101.60	4.000	101.60
With Polished Rod Pin Threads
Rod Pin Size (Nominal Size)	Size	3/4		3/4		7/8

Packaging & Shipping

Company Profile

Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, OHSAS-18001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.

Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .