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The Derun Drilling Jar is a mechanical, non-explosive tool designed to deliver upward impact force to free stuck pipe or retrieve downhole equipment. It operates via a sliding sleeve mechanism that stores energy during tension and releases it as a sharp blow, making it essential for well maintenance and fishing operations in oil and gas drilling.
The tool is constructed from high-strength alloy steel, typically AISI 4140 or equivalent, with a hardened working surface to resist wear under repeated impacts. Standard sizes range from 3.5 to 5.5 inches in diameter, with stroke lengths of 4 to 8 inches. These dimensions align with industry-standard fishing jars used in deep well applications and are compatible with most rig top drives and kelly bushings.
Buyers include offshore drilling contractors, well service companies, and geothermal operators in Southeast Asia, the Middle East, and Latin America. The tool is shipped in reinforced steel crates with internal foam padding to protect the internal mechanism. Trade terms include FOB Qingdao or CIF destination, with payment via T/T or L/C. MOQ is typically one unit, but bulk discounts apply for orders of five or more.
| Type | Mechanical, non-explosive, upward-acting drilling jar |
| Body Material | AISI 4140 alloy steel, typical for high-impact tools |
| Outer Diameter Range | 3.5 to 5.5 inches, standard for most drilling applications |
| Stroke Length | 4 to 8 inches, typical range for mechanical jars |
| Maximum Working Load | Typical range of 100,000 to 250,000 lbf, based on size |
| Thread Connection | NC50 or IF, standard for compatibility with drill string components |
| Internal Mechanism | Sliding sleeve with hardened striker and spring assembly, typical design |
| Hardness Rating | Typical 32 to 36 HRC on impact surfaces, per API 7G |
| Weight | 150 to 450 kg, depending on size and stroke length |
| Packaging | Reinforced steel crate with internal foam padding, standard for transport |
Derun Energy Co., Ltd. is registered in Beijing's Chaoyang District and is listed as an exporter of drilling jars and downhole tools. The company has a harbor trust tier, indicating some export history, but no public data confirms factory ownership, production capacity, or engineering team size. The listing does not reference certifications, client testimonials, or years in business.
The supplier shows a zero response rate and no average response time, suggesting minimal active engagement with buyers on the platform. Buyers should treat this as a manufacturer with documented export capability but no verified quality assurance system beyond standard mechanical tool production practices.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Verify the material grade and hardness of the striker and housing before purchase. Request a material certification and load test report showing the tool was tested to 1.5x its rated capacity. Do not accept tools without documented impact testing, as internal failure can cause serious downhole incidents.
Lead time is typically 25 to 40 days after order confirmation. Confirm Incoterms - FOB Qingdao is standard - and clarify responsibility for marine insurance. Payment terms are usually 30% advance, balance against shipping documents or L/C at sight. Ensure the supplier provides a packing list and export declaration in English.
Conduct a pre-shipment inspection for surface cracks, thread integrity, and smooth operation of the sliding mechanism. Use a torque wrench to simulate tension and observe jar function. Retain a sample for lab analysis if operating in high-temperature or corrosive wells. Always request a certificate of conformity and test records before accepting delivery.
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When sourcing Derun Drilling Jar for your business, securing the right balance of quality and cost is essential. Derun Energy Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $150/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Drilling Machines & Tools sector with strong demand from importing countries worldwide.
Importing Derun Drilling Jar requires careful attention to shipping logistics, customs compliance, and secure payment terms. Derun Energy Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
Finding trustworthy partners is the foundation of successful importing. The supplier of this Derun Drilling Jar has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Drilling Machines & Tools category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Importing Derun Drilling Jar requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Derun Drilling Jar from Derun Energy Co., Ltd. is $150/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Derun Energy Co., Ltd. through EximNext.
The supplier, Derun Energy Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Derun Drilling Jar. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Derun Drilling Jar depends on the specific grade and form. Contact Derun Energy Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
To import Derun Drilling Jar from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Derun Energy Co., Ltd.. Ensure you have the necessary import licenses for Drilling Machines & Tools products in your destination country.
Yes, Derun Energy Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Derun Energy Co., Ltd. through EximNext.
Derun Energy Co., Ltd. offers Derun Drilling Jar with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Derun Drilling Jar is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Derun Energy Co., Ltd. through our platform.
Derun Energy Co., Ltd. maintains international quality certifications. These ensure that the Derun Drilling Jar meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Derun Energy Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Derun Energy Co., Ltd..
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