In the oilfield automatic coiling machine system,the self-reversing screw serves as a core transmission component,playing a pivotal and crucial role.
Due to the wide variety of oilfield coiling machine models and the distinct operational requirements of each model,the required stroke of the screw varies significantly.Notably,the total length of the screw is not a fixed standard value;instead,it can be flex customized and precisely adjusted based on the stroke requirements of the specific model to meet the needs of diverse working conditions.

Each self-reversing screw applied to oilfield coiling machines is a non-standard customized product.We accurately calculate and determine the total length and specifications of the self reversing screw based on the actual operational needs of the specific model,ensuring a perfect fit between the screw and the mechanical structure of the coiling machine with zero transmission error.
This self-reversing screw boasts exceptional technical advantages in materials and craftsmanship: it is made of premium special forged materials and processed through precision heat treatment technology,endowing the screw with ultra-strong wear resistance and smooth operation performance.Meanwhile,the unique double-row rope guiding design ensures neat and orderly arrangement of ropes during operation,significantly enhancing the stability and operational accuracy of the equipment.It provides a solid guarantee for the efficient,safe and smooth operation of oilfield coiling operations.

| Diameter | 20mm~200mm |
| Screw material | S45C/SS304/SS316/SS316L/2507 stainless steel/polyformaldehyde/titanium alloy/40Cr |
| Nut material | S45C/brass/bronze/SS304/SS316/SS316L/POM/PEEK/aluminum/2507 stainless steel |
| Screw shaft end/stroke/total length | Produced according to your requirements |
| Nut dimension | Produced according to your requirements |
| Surface coating | Galvanized/blackening/nitrogenization/chromeplate/nickel plating |
MOQ: 1 pc.
Fast delivery:15days.
Cost-effective:20% ~40% cost savings.
Custom Services:Self-reversing screws and nuts manufactured according to your specifications and drawings.
Design & Optimization Services:We assist customers in designing self-reversing screws and optimizing their current designs to achieve better performance and reliability.


Raw Material Control
We purchase raw materials only from qualified high-quality suppliers.Each batch of materials has complete material certification,material test report and quality inspection certificate.


Professional Testing
We use professional testing equipment and tools to strictly inspect product size, appearance and performance.
100% Double Inspection
Every self-reversing screw goes through 100% inspection.First,the factory conducts initial inspection;then the export department does secondary inspection.Products are delivered only after both inspections are passed and results are confirmed correct.

Operation & Function Test Videos
We will send customers operation videos of self-reversing screws,pawl and nuts,together with function test videos and pictures.
Product & Packaging Details Confirmation
We will send customers detailed product pictures and all packaging pictures before shipment to ensure all details meet customer requirements.



