Semi-Bridge Type T38-190 mm Coupling Sleeves for Mining and Rock Drilling

• Length: 190mm 210mm, 250mm
• Usage: Ore Mining
• Material: Carbon Steel
• Shank Size: 22mm, 19mm, 25mm
• Face: Flat
• Carbide: Yko5
• Model NO.: T38-190
• Process: Forging
• Use: Drifting and Tunnelling
• Type: R25 R28 R32 R35
• Transport Package: Wood Package
• Specification: CE, SGS, ISO: 9001
• Trademark: Prodrill
• Origin: China
• HS Code: 84314320
• Production Capacity: 5000PCS/Months

Product Description

Description:

Rock drilling tools: Adapter Coupling, Cross-over Adapter Coupling, coupling sleeves

• Used when changing from one thread type, or size, to another and are typically required only in special circumstances
• Crossover adapter ( MF adapter coupling ),  T38F/ R38M-260
• Coupling sleeves:  Crossover adapter ( MF adapter coupling ), T45F/T38M-260.

Coupling sleeves, other name is Coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to join the adapter to the rod,ensuring the ends touch for efficient energy transmission. Couplings are also used to connect several rods to each other in the same way. Couplings have a middle stop to prevent over-threading on to the drill rod. We can manufactures semi-bridge, full bridge coupling sleeves for the percussive tools. 
 

 

Product Name:	coupling sleeve
Description:	coupling sleeve use to connect several rods to each other
Material:	Alloy steel bar
MOQ:	5pcs
Type	full-bridge, semi-bridge,same diameter etc
Thread type	R22,R25,R28,R32,R38,T38,T45,T51
Diameter	33mm-76mm
Length	140mm-250mm
Color	Gold, Red

Semi-Bridge Coupling is a most use for coupling sleeves in market, product features as follow:

• Small non-threaded bridge in the center
• Steel cannot thread past bridge area
• Smaller diameter steel end portions fit together in the center bridge area of the coupling
• Semi-bridged couplings are most suited to high torque machines
• Most rope and HM threaded couplings are semi-bridged.

T38-190 semi-bridge type coupling

 

Main Products:

 

1-12 inch middle-low/high air pressure DTH hammers & bits
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling 
Eccentric overburden drilling Equipment 
Hole opener bit 
Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45,T51, ST58,GT60)

 

Extension Rod, M/F Rod, M/m Rod, Drift Rod,
Shank adapter, coupling sleeves and all kinds of adapters 
Advantages:

Compared with the oversea brands, our advantages are bellowing:

a. Our products can match over 95% against the original products

b. Price are competitive against the famous brands and best quality against the small factory 

 

About Us:

 

1.    Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.

2.    We have advanced technology and equipment.

3.    Our technician has more than 13 year's professional working experience.

4.    Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Philippines, Thailand, India, etc.