Jq-Dh Mechanical Shock Absorber for Oilfield

• Product Name: Mechanical 4 3/4 Nc38 Drilling Jars for Oilfield
• Certification: API
• Material: Carbon Steel
• Machine Type: Drilling Equipment
• Transport Package: Standard Export Package
• Specification: 200KG
• Model NO.: JQ-DH
• Trademark: Lake Petro
• Origin: China
• Production Capacity: 1000PCS/Year

Product Description

JQ-DH Mechanical Shock Absorber for oilfield

 

Product Description

JQ-DH shock absorber is an absorbing tool acting as vertical absorbing function when drilling with cone bits or abrasive coring bits. It can absorb or slow down vertical shocking and impact load

of drill stem when drilling, thereby keep normal drilling pressure, prolong working life of drill bit, protect drilling tools and surface equipments, decrease drilling cost, increase drilling efficiency.

 

JQ-DH uses butterfly spring as elastic element, it is different from hydraulic shock abscrber using silicon oil and other fluid as working medium, its working property doesn't be effected by working environment, this mechanical type shock absorber is a new R&D tool made by our factory and a foreign company, it has the advantages of simple structure, reliable working, convenient operation and maintenance, good absorbing effect, long working life and high property, it's one of the most widely used drilling tools oversea.

ype	OD (mm/inch)	ID (mm/inch)	Connection (API)	Max.upward jarring force (KN)	Ma.downward jarring force (KN)	overall length (mm/inch)
BZ121	121(4-3/4)	50.8(2)	NC38	450	230	6356(250)
BZ159	159(6-1/4)	57.2(2-1/4)	NC50	630	360	7265(286)
BZ165	165(6-1/2)	57.2(2-1/4)	NC50	630	360	7265(286)
BZ196	196(7-3/4)	71.4(2-13/16)	6-5/8REG	820	460	7062(287)
BZ203	203(8)	71.4(2-13/16)	6-5/8REG	820	460	7062(287)

 

Our Services

FAQ

 

How can I place order? 

A: You can contact us by email about your order details, or place order on line. 

How can I pay you? 
A: After you confirm our PI, we will request you to pay. T/T (HSBC bank), L/C, D/P, Western Union are the most usual ways we are using. If you want to use other way, please tell me, we can discuss.

What's the order procedure? 
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pr-epaid full payment or deposit before we go into production. After we get the deposit, we start to process the order. We usually need 7-15days if we don't have the items in stock. Before production has been finished, we will contact you for shipment details, and the balance payment. After payment has been settled, we start to prepare the shipment for you. 

How do you take care when your clients received defective products? 
A: replacement. If there are some defective items, we usually credit to our customer or replace in next shipment.