| After-sales Service: | Online Service |
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| Warranty: | 12 Months |
| Manufacturing Process: | CNC Milling |
| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier JYSZ hydraulic-mechanical drilling jar integrates hydraulic principle with mechanical principle,it's a new type drilling jar, which can suit for all kinds of drilling operations, and go with drillingtools assembly to decont the well when uesd. The drilling tools are often sticked due to many kinds of reasons in down hole when in normal drilling operations, and this type drilling jar is an effective tool for releasing stuck. When the drilling tools are sticked, it can make drilling jar generate upwardor downward jarring force through lifting and landing the drill strings, so it can release resistance and the stick by many time jarring, and recover normal drilling operation promptly. Meanwhile avoid resistance and stick to become further accident, and cause larger economic losses. If releasing forceis failed, it can dynamiclly adjust at anytime on sites and be easy to use.
| Model | JYSZ121 | JYSZ159 | JYSZ165 | JYSZ172 | JYSZ178 | JYSZ203 | JYSZ241 |
| Product Code | 1808000 | 1810000 | 1811000 | 1812000 | 1813000 | 1815000 | 1817000 |
| O.D. (mm) | 121 | 159 | 165 | 172 | 178 | 203 | 241 |
| I.D. (mm) | 50.8 | 69 | 69 | 69 | 69 | 76.2 | 76.2 |
| API Connection | NC38 | NC46 | NC50 | NC50 | NC50 | 6 5/8 REG | 7 5/8 REG |
| Overall Length (mm) | 9100 | 9450 | 9450 | 9450 | 8890 | 9700 | 9700 |
| Total Weight (kg) | 530 | 980 | 1020 | 1110 | 1290 | 1660 | 2400 |
| Up Jarring Free Stroke (mm) | 127 | 190 | 190 | 190 | 190 | 190 | 190 |
| Down Jarring Free Stroke (mm) | 165 | 190 | 190 | 190 | 190 | 190 | 190 |
| Max. Up Jarring Force (kN) | 350 | 700 | 700 | 700 | 800 | 1000 | 1250 |
| Max. Down Jarring Force (kN) | 200 | 350 | 350 | 350 | 400 | 500 | 650 |
| Max. Tensile Load (kN) | 1500 | 3750 | 3750 | 3750 | 4650 | 6650 | 7350 |
| Working Pull Force (kN) | 1000 | 2000 | 2000 | 2000 | 2400 | 2800 | 3500 |
| Max. Torque Load (kN•m) | 18 | 75 | 75 | 75 | 91 | 133 | 180 |
| Working Torque (kN•m) | 10 | 25 | 25 | 25 | 30 | 35 | 40 |
| Pump Area (cm²) | 18 | 26 | 26 | 26 | 51 | 58 | 78 |
1) How can I place order?
A: You can contact us by email about your order details, or place order on line.
2) How can I pay you?
A: After you confirm our PI, we will request you to pay. T/T and Western Union are the most usual ways we are using.
3) 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 15-25days 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.
4)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.
5)How do you check all the goods in the production line?
A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure.
Suppliers with verified business licenses
Audited Supplier 
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