Alloy Steel Speed / Drifting Drill Rod Crossover Coupling Sleeve For Connecting Extension

Alloy Steel Speed / Drifting Drill Rod Crossover Coupling Sleeve For Connecting Extension

Description

JC Threaded coupling sleeve is made of high quality of alloy steels and CNC machining guarantee our reliable and consistent quality control of coupling sleeves.Both semi-bridge and full-bridge coupling sleeves are manufactured by us in different sizes as below:

Thread sizes: R22, R25, R28, R32, R35, R38, T38, T45, T51;
Two catagories: Standard coupling sleeves, adapter(crossover) coupling sleeves;

Semi-bridge coupling, by far is the most popular, has a small non-threaded bridge in the centre. The drill rod cannot thread past the centre of the couplings, and the smaller diameter rods portions butt together in the centre bridge area of the coupling. Semi-bridge couplings are most suited to high torque machines. Most rope (R) and Trapezoidal (T) threaded couplings are semi-bridged.

Full bridge coupling has a great advantage that it positively eliminates the potential for the coupling to creep along the threaded joints. These couplings, are typically used in a Trapezoidal thread, in surface drilling application, have better uncoupling characteristics and tend to maintain tighter joints. Full-bridge couplings have less chance of jamming and are best suited to machines equipped with independent rotation.

Adapter couplings are used when changing from one thread type, or size, to another and are typically required only in special circumstances.

Parameter

Certification

Package

Delivery

FAQ

1. Shipping time for an order

We have many stock. As usual, we can delivery the goods as soon as we get the full payment.

2. Quality Control

Strict inspection and testing for every order before shipping out .

3. How to order

Style+Thread+Length+Diameter.

4.How can we trust your company?

We support Alibaba trade insurance. Protect products quality, shipment on time and your covered amount.

Beijing Jincheng Mining Technology Co.,Ltd(JCDRILL) located in Beijing,China, for more than 20 years we have specilized in research, development and produce of rock blasting drilling rig, water well drilling rig, diamond core drilling rig, anchor drilling rig, and relative accessories & drilling services. constantly provide professional drilling solutions for all customers with our advanced technology, excellent equipment, strict testing means and perfect service network, which establish our brand “JCDRILL” a good image of market, now, JCDRILL products account for 50% of domestic market and have been export to more than 40 countries, and we awarded ISO9001: 2000 in November, 2002.

Now, our factories for rock blasting drilling rig, water well drilling rig, diamond core drilling rig, anchor drilling rig, and relative accessories occupy an area of 9625 square meters with more than 500 employees, including twenty six engineers from Ingersoll Rand and former Xuanhua Mining Machinery company, with excellent technology and solid market service capabilities, we have both a sound marketing system and excellent service support system, which help us win confidence of customers both at home and abroad. Meanwhile, we are agent of movable double screw air compressor of Atlas Copco,Sullair, Liutech,by which ,we can provide drilling rig users with high quality professional air compressor solution and relative after-sales service also.

JCDRILL will always focus on the strategic conception of “Survival by quality, Development by credit’’, to provide users with high quality drilling solutions.In our after sales service system, We establish perfect control system strictly according to ISO-9000 series, in this system, technology date and problem solve solution and preventive measures will be provided in any maintain project, all the spare parts will be used in new OEM products with installation instructions, packing list, manufacturer's instruction, qualification and Warranty certificate.

We provide "one equipment & one case, endless service, namely the after sales service begin from the order confirmation, last for the working life of the equipment.