Master Bushing MSS MDSP MSP MSPC MPCH

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Payment Terms:: TT or LC

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Supply Capability:: 30 Pieces per Month pc/month

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1.Master Bushing

2.type:MSS MDSP MSP MSPC

3.API Spec 7K ISO9001:2008

4.GB/T 28001-2001

5.GB/T 24001-2004-ISO14001:2004

Our company produce the master bushings and insert bowls with the size from 17 1/2 to 37 1/2 inch. They are cast with high-quality alloy steel and the sizes conform to API Spec 7K. There are two types, pin drive and square drive. API standard rotary slip, drill collar slip, casing slip or roller Kelly bushing can be contained in them.

Bushing Type	Rotary Table Size(in)	Insert Bowls	Handing Tubular OD (in)
Solid body and Split body	17 1/2	API Bowl 1011	2 3/8-8 5/8
	17 1/2	EXT. Bowl 1024	2 3/8-8 5/8
	20 1/2	API Bowl 1011	2 3/8-8 5/8
	20 1/2	EXT. Bowl 1024	2 3/8-8 5/8
	27 1/2	API Bowl 1022	2 3/8-8 5/8
		EXT. Bowl 1025	2 3/8-8 5/8
		Insert Bowl 1026	9 5/8-10 3/4
MDSP Split body	17 1/2	EXT. No.3 Taper	2 3/8-8 5/8
MDSP Split body	20 1/2	EXT. No.3 Taper	2 3/8-8 5/8
MSPC Solid body	20 1/2	EXT. Bowl 1809	2 3/8-8 5/8
		Bowl 1902	9 5/8-10 3/4
		Body only 1805	11 3/4-13 3/8
	27 1/2	Bowl 1810(No3)	2 3/8-8 5/8
		Bowl 1904(No2)	9 5/8-10 3/4
		Bowl 1903(No1)	11 3/4-13 3/8
MSP Solid body	27 1/2	EXT. No.3 Taper	2 3/8-8 5/8
MPCH	37 1/2	Bowl 6608(No3)	2 3/8-8 5/8
		Bowl 6609(No2)	9 5/8-10 3/4
		Bowl 6610(No1)	11 3/4-13 3/8

Q:Specific depends on what number you are cone sets, you can compare:0 1:19.212 9.0451 1:20.047 12.0652 1:20.020 17.783 1:19.922 23.8254 1:19.254 31.2675 1:19.002 44.3996 1:19.180 63.348: Not enough detail ah, a few cones are not aware of their comparison, followed by cone sleeve diameter0 1:19.212 9.0451 1:20.047 12.0652 1:20.020 17.783 1:19.922 23.8254 1:19.254 31.2675 1:19.002 44.3996 1:19.180 63.348

Q:How do you determine the size of the drill sleeve with a drill diameter of 6?. Thank you: The bore size of drill sleeve is determined according to F7 tolerance. That is: 6F7,6 deviation: +0.022. deviation +0.010.

Q:I wonder if it works Because of the large number of drilled holes, the wear of common steel is relatively large. But T10 steel needs quenching. I don't have any specialized equipment here. Usually it is heated by oxygen acetylene, and then it is quenched by oil. I wonder if T10 steel is good. What about the deformation? Outside diameter 15mm, inner hole 8.6MMIf not, what is the best way to do it? Or what to replace?: Tolerable。 T06 or T08 can, but should not wear very fast quenching, the inner diameter of H8, H9, such as the outer diameter with H8/n7 this can often remove.

Q:What kinds of drill sleeves are used? What are they used for?: Drill sleeve is divided into fixed drilling sleeve and fast change drill sleeve two kinds. A fixed drill sleeve is used for drilling only. Quick drill bushing, is generally the first to remove the drill sleeve on the drilling, reaming and reaming.

Q:I have seen many drilling techniques in practice, and I find that drilling jigs do not have guiding elements (i.e. drill sleeves). Why do not they use drill sleeves in actual production? And I have seen in many books drilling jig, need drill sleeve of the statement, how is this matter?Reaming in our company is also done by drilling machines. Change the drill bit to the reamer. Do you want reaming?I asked the master of the workshop why the drilling fixture does not need to drill, they do not even know what the drill sleeve is, as if they are in the design of drilling machine clamp, there is no drill sleeve concept.I really don't understand why the drilling jig is using drill sleeves If it is for the tool, you can put on a processed product, and then the tool is ok. Why?: In the actual drilling process, the drilling machine fixture should have guiding elements (drill sleeve).The role of drill sleeve is mainly used to determine the location of the drill bit, reamer, reamer and other fixed size tools, and the structure and size of the drill bush have been standardized. According to the characteristics of the use, the drilling sleeve has four types of fixed drilling sleeve, replaceable drill sleeve, fast change drill sleeve and special drilling sleeve. Moreover, the drill sleeve is inserted into the drilling template by "interference fit".The significance of drill sleeves is that they can locate and guide the machining of the cutting tools so as to improve the machining accuracy.

Q:Drill 4.2 holes, tap 5 thread, choose what kind of drill sleeve: Tapping 5 of the thread, drilling 4.2 of the hole, you need to drill sleeve, indicating that the screw hole distance, position tolerances, usually is + 0.1.In general, the tolerance of the drill hole to the choice of F7 is 4.2F7, that is, Phi 4.2 (+0.022 / +0.01).Drill sleeve material, you can choose T8, T10, etc., more than HRC60 quenching.Drill sleeve form can be chosen by oneself (fixed drilling sleeve, quick change drill sleeve, etc.).

Q:How should the drill bit of the 4mm bit be calculated?: The drill bit for the 4mm is generally larger than the drill sleeve about 4 or 0.03Such coordination is more accurateSpecific access to relevant GB requirements

Q:Can the drill jig designed in mechanical processing be without drill bush?: Yes, the material is different. But after the hole is worn, it is difficult to reuse the drilling template, such as using a drill sleeve to replace the worn one, and the clamp still doesn't affect the concrete.

Equipped with excellent equipment, strong technique force and completed test facilities, the company is a first-level supply member of Chinese Petroleum and Natural Gas Consortium, as well as the member of China Petrochemical Material Resources Market. We have obtained the Production License issued by the nation.we believe that our company will usher in a new takeoff in the near future.

1. Manufacturer Overview
Location	Jiangsu,China
Year Established	2000
Annual Output Value
Main Markets	North America South America Mid East Central America
Company Certifications	ISO 9001:2008;ISO 14001:2004

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
a)Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:	English, Chinese
b)Factory Information
Factory Size:	10,000-30,000 square meters
No. of Production Lines	4
Contract Manufacturing	OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range	Low and/or Average