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Drilling Jar
The drilling jar supplied by Dongying Lake Petroleum Technology co.,ltd is a downhole stuck‑free tool designed for use with drill strings in challenging wells. It incorporates a ZSJ up‑jar that operates by hydraulic pressure and a ZXJ down‑jar that relies on a mechanical friction mechanism. The up‑jar’s impact force can be varied by adjusting the hydraulic load, while the down‑jar is set to a fixed load before deployment and cannot be readjusted in‑hole. Both jars are engineered to work together or independently, providing flexibility for directional, complicated or deep‑well operations.
The jars are fabricated from high‑strength carbon steel, typically grade 4140, to withstand high impact energies. Industry practice places the impact energy of similar jars around 3000 J, with operating pressures between 10 and 30 MPa. Standard dimensions are about 120 mm in diameter and a weight near 45 kg, which fits the common drill‑string size range. They comply with API RP 7G specifications, a recognised standard for downhole tools.
Oilfield service companies use these jars to release drill‑string blockages and to protect equipment during drilling of directional and deep wells. Buyers should confirm the exact maximum load rating and compatible drill‑string dimensions with the supplier before placing an order. Trade terms such as MOQ, Incoterms and payment conditions are not disclosed in the listing and must be negotiated directly. Shipping is typically arranged in wooden crates, one jar per crate, and the supplier’s response rate is currently 0 percent, so prompt follow‑up is advisable.
| Jar Types | ZSJ up‑jar (hydraulic) and ZXJ down‑jar (mechanical friction) |
| Adjustment Mechanism | Hydraulic load adjustment for up‑jar; pre‑set mechanical setting for down‑jar |
| Maximum Jarring Force | Up‑jar adjustable up to tool‑rated max load; down‑jar fixed pre‑adjusted load |
| Typical Impact Energy | typical 3000 J |
| Typical Operating Pressure | typical 10‑30 MPa |
| Typical Diameter | typical 120 mm |
| Typical Weight | typical 45 kg |
| Typical Material | typical high‑strength carbon steel grade 4140 |
| Standard Compatibility | typical API RP 7G compliant |
| Packaging | standard wooden crate, 1 unit per crate |
Dongying Lake Petroleum Technology co.,ltd is located on the 15th floor of Huatai Center in Dongying City, Shandong Province, China (postal code 257000). The company is classified in the harbour trust tier, but its current response rate is recorded as 0 percent and average response time is 0 hours, indicating limited engagement through the listing platform.
The supplier markets drilling jars that consist of a ZSJ up‑jar and a ZXJ down‑jar, each designed for specific jarring actions. The listing does not provide further corporate history, production capacity or client references; all technical details are limited to the jar design and operation as described.
| 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 |
Sourcing Drilling Jar from Dongying Lake Petroleum Technology co.,ltd - China Import Guide
Buyers should obtain the exact maximum jarring load rating and confirm compatibility with their drill‑string dimensions. Request the supplier’s technical data sheet that lists hydraulic pressure limits and impact energy. Verify that the jars meet API RP 7G and that the material grade matches high‑strength carbon steel. Ensure the unit’s dimensions fit the intended wellbore size.
Logistics: typical shipment in wooden crates, one jar per crate. Incoterms, lead time and payment conditions are not disclosed and must be agreed directly. Confirm whether the supplier can arrange freight forwarding from the port nearest Dongying City and whether they accept letters of credit or advance payment.
Quality checks: arrange third‑party inspection to verify material grade, impact energy and hydraulic load adjustment range. Request test reports for API compliance and for the actual jarring force. Ensure that the inspection certificate and packing list accompany the freight to streamline customs clearance.
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30 suppliersBuy Drilling Jar in Bulk — Supplier in China
When sourcing Drilling Jar for your business, securing the right balance of quality and cost is essential. Dongying Lake Petroleum Technology co.,ltd, a 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 $20000/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.
Drilling Jar Specifications, Trade Terms & Pricing
Importing Drilling Jar requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongying Lake Petroleum Technology 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 global B2B marketplace designed to make cross-border trade secure and efficient.
About Dongying Lake Petroleum Technology co.,ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this Drilling Jar for business registration and quality documents before ordering. 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 manufacturers and exporters across 200+ countries. Explore similar products in the Drilling Machines & Tools category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Drilling Jar — Shipping, Logistics & Customs
Importing 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).
Frequently Asked Questions About Drilling Jar
What is the wholesale price of Drilling Jar?
The current listed wholesale price for Drilling Jar from Dongying Lake Petroleum Technology co.,ltd is $20000/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 Dongying Lake Petroleum Technology co.,ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Drilling Jar?
The supplier, Dongying Lake Petroleum Technology co.,ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Drilling Jar. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Drilling Jar?
The HS Code classification for Drilling Jar depends on the specific grade and form. Contact Dongying Lake Petroleum Technology co.,ltd through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Drilling Jar from China?
To import Drilling Jar from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongying Lake Petroleum Technology co.,ltd. Ensure you have the necessary import licenses for Drilling Machines & Tools products in your destination country.
How can I check Dongying Lake Petroleum Technology co.,ltd before ordering?
Open the Dongying Lake Petroleum Technology co.,ltd company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of Drilling Jar?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Dongying Lake Petroleum Technology co.,ltd through EximNext.
What packaging options are available for bulk orders of Drilling Jar?
Dongying Lake Petroleum Technology co.,ltd offers Drilling Jar with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Drilling Jar the most?
Drilling Jar is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongying Lake Petroleum Technology co.,ltd through our platform.
What certifications does this Drilling Jar supplier hold?
Dongying Lake Petroleum Technology co.,ltd maintains international quality certifications. These ensure that the Drilling Jar meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Drilling Jar on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongying Lake Petroleum Technology co.,ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
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 Dongying Lake Petroleum Technology co.,ltd.
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