SL135 & SL160 Drilling Swivel Spare Parts

1. Core Purpose & Target User Demand Orientation

This full series of spare parts is exclusively designed for SL135 standard drilling swivels and SL160 heavy-duty drilling swivels, core supporting equipment for land & offshore oilfield rotary drilling rigs. Targeted at oilfield drilling teams, drilling equipment maintenance departments, third-party equipment maintenance service providers, and oilfield spare parts procurement specialists, it solves long-standing pain points including unstable sealing under high mud pressure, rapid wear of bearing components, frequent oil leakage, short replacement cycle of vulnerable parts, and inconsistent matching between non-standard spare parts and original swivel equipment. The parts are built to unify dimensional accuracy, material strength, and assembly standards, providing a one-stop supporting solution for daily maintenance, emergency repair, and equipment overhaul of SL135/SL160 drilling swivels, ensuring continuous and stable operation of drilling equipment under harsh working conditions.

2. Complete Product Introduction

We supply a full range of precision machined spare parts covering SL135-32-00 BOP assy, SL135-30-00 oil pointer, SL160-11 plug, SL135-29 mud umbrella, SL135-2B upper bearing cover, SL135-27 oil seal ring, and all supporting components for SL135/SL160 drilling swivels. All parts are produced in strict accordance with API Spec 8C & SY5210 industry authoritative standards, using forged alloy steel, high-performance wear-resistant rubber, and precision heat-treated metal materials, with 100% fit with original swivel structures. Unlike generic spare parts, each component undergoes dimensional calibration, pressure resistance testing, and wear resistance testing before leaving the factory, with unified assembly interfaces and stable performance parameters, eliminating equipment jamming, sealing failure, and premature damage caused by poor part matching.

3. Core Function Description

The series parts undertake core functional tasks of drilling swivel operation: sealing high-pressure drilling mud to prevent leakage and backflow; bearing full weight of drill string and dynamic load during rotary drilling; lubricating internal bearing systems to reduce friction loss; isolating mud contamination to protect core transmission components; stabilizing swivel operation posture to reduce vibration damage; and realizing fast disassembly and assembly for on-site maintenance. Each part corresponds to a unique functional node, jointly building a closed loop of efficient, safe, and long-lasting operation of SL135/SL160 drilling swivels, avoiding functional failure of the whole machine caused by a single vulnerable part.

4. Structural Features & Technical Advantages

All components adopt precision forging and fine machining processes, with uniform wall thickness, smooth assembly surfaces, and no internal defects that affect strength. Sealing parts use high-elasticity, corrosion-resistant composite materials, adapting to mud with different viscosity and particle content; metal bearing components are treated with high-frequency quenching, with surface hardness increased by 220 HB without reducing toughness, and service life extended by 860 working hours compared with ordinary parts. The modular design realizes one-to-one correspondence with original swivel structures, no secondary modification required for installation; threaded connections are precision machined, with tight fitting and no slippage under high torque; positioning structures are optimized to reduce eccentric wear, fully adapting to long-hour continuous drilling conditions.

5. Applicable Working Conditions

These spare parts are suitable for conventional land oilfield drilling, shallow offshore drilling, and workover operations, matching SL135/SL160 drilling swivels with a static load capacity of 1350KN-1600KN. Applicable mud pressure range: 0-35MPa; applicable ambient temperature: -30℃ to 70℃; adaptable to drilling mud with sand content ≤8%. They can operate stably in complex working conditions such as deep well drilling, directional drilling, and continuous cycle drilling, and are also suitable for emergency replacement and routine preventive maintenance of drilling swivels in various oilfield construction scenarios.

6. Professional Maintenance & Practical Suggestions

1. Daily inspection: Check oil pointer readings and oil seal ring integrity every 8 working hours, and tighten connecting bolts to avoid looseness caused by vibration; 2. Periodic replacement: Replace packing components every 1200 working hours, and inspect bearing covers and bearing clearance every 2400 working hours; 3. Installation precautions: Keep assembly surfaces clean during replacement, avoid mud residue entering internal channels, and apply special lubricating grease evenly to sealing pairs; 4. Avoid risks: Do not mix non-standard spare parts with this series, so as not to damage core components and increase maintenance costs; 5. Storage requirements: Store parts in a dry, ventilated environment, avoid corrosion and deformation, and mark model specifications clearly for quick access.

We supply the following spare parts:

7. On-Site Fault Repair Cases (Field Data)

Case 1: Changqing Oilfield, Ordos

Equipment Model: SL135 Drilling Swivel; Load: 1280KN; Fault Problem: Continuous mud leakage at upper packing, unable to maintain normal mud pressure; Replacement Parts: SL135-08 upper packing, SL135-06 packing; Post-repair Index: Mud pressure stabilized at 28MPa, no leakage detected after 72 hours of continuous operation; Customer Feedback: Fast replacement, stable performance, no downtime caused by sealing failure during subsequent drilling, meeting on-site construction schedule requirements.

Case 2: Bohai Bay Offshore Drilling Platform

Equipment Model: SL160 Drilling Swivel; Load: 1520KN; Fault Problem: Lower bearing cover oil leakage, bearing lubrication failure; Replacement Parts: SL135-18 lower bearing cover, SL135-27 oil seal ring; Post-repair Index: Bearing operating temperature stabilized at 42℃, no oil leakage, lubrication system running smoothly; Customer Feedback: Perfect matching with original equipment, extended maintenance interval, reduced offshore maintenance frequency and cost.

Case 3: Tarim Oilfield, Hotan

Equipment Model: SL135 Drilling Swivel; Load: 1300KN; Fault Problem: Mud contamination inside swivel, accelerated wear of central pipe; Replacement Parts: SL160-08 centre pipe, SL135-29 mud umbrella; Post-repair Index: Central pipe operation eccentricity ≤0.02mm, no mud backflow contamination; Customer Feedback: Effectively isolates mud erosion, prolongs service life of core components, reduces overall maintenance investment.

8. Frequently Asked Questions (FAQ)

9. Enterprise Qualification & Authoritative Endorsement

All series spare parts are produced in a fully enclosed precision machining workshop, equipped with professional quality testing equipment, and each batch passes pressure resistance test, dimensional accuracy test, and material performance test. The production system fully complies with API Spec 8C petroleum equipment manufacturing standards, with complete quality traceability records. With years of supporting experience in oilfield drilling equipment, our products have been widely used in major domestic and overseas oilfield drilling projects, recognized by on-site engineering teams for stable performance and reliable quality, providing solid technical and quality support for oilfield drilling efficiency improvement.

10. Procurement Guidance & Value Reminder

For oilfield drilling teams and procurement teams needing stable, high-matching SL135/SL160 drilling swivel spare parts, this full series of components is your optimal choice. We provide complete model matching, clear technical parameters, and unified quality standards, which can be used as both daily spare parts reserve and emergency maintenance supplies. Choosing our spare parts means reducing equipment downtime, lowering maintenance labor and material costs, and avoiding potential safety hazards caused by inferior parts. We provide complete product qualification documents and technical guidance, supporting long-term stable supply to meet your oilfield drilling equipment maintenance and procurement needs. Contact us to confirm the required model and quantity, and get targeted spare parts matching and technical support solutions to ensure efficient and safe operation of drilling equipment.

contact us ：

Emeil: [email protected]  

whatsapp: +86 15275658619