08 Feb 2026

SJ Petro ZJ40 Hydraulic Winch Lines (Z07040000002AA) Accessories Catalog

Core Purpose & Equipment Adaptation

This catalog is exclusively customized for the Hydraulic Winch Lines (Model: Z07040000002AA) of the SJ Petro ZJ40 Drilling Rig. It caters to the segmented needs of drilling engineering teams, on-site maintenance technicians, and procurement personnel—providing accurate part models, detailed material specifications, practical wear prevention guidance, and professional fault solutions. As a key component of the SJ Petro ZJ40’s hydraulic system, the hydraulic winch lines are responsible for transmitting high-pressure hydraulic oil to the winch, enabling stable operation of lifting, lowering, and positioning of drilling tools in petroleum drilling scenarios. All parts fully comply with API 6D (Petroleum and Natural Gas Industries—Pipeline Valves), SAE J517 (Hydraulic Hose and Hose Assemblies), and ANSI/ASME B1.20.1 (Pipe Threads, General Purpose) standards. Choosing these original-matching accessories avoids costly downtime caused by mismatched, low-quality parts, reduces maintenance costs, and ensures the winch operates safely and efficiently in harsh drilling environments.

Accessories Classification & Detailed Specifications

1. Main Pipeline Components (Core Transmission Parts)

These are the core components of the hydraulic winch lines, responsible for transmitting high-pressure hydraulic oil between the hydraulic pump and the winch actuator. In petroleum drilling scenarios, they face frequent vibration during equipment transfer, high-pressure impact during winch operation, and corrosion from outdoor dust, rain, and drilling fluid—easily causing wear, leakage, or bursting. High-quality materials and precision processing ensure pressure resistance, wear resistance, and tight sealing, complying with SAE J517 standards to avoid oil leakage and system failure.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

Hydraulic winch lines

Z07040000002AA

Integrated assembly: High-strength carbon steel steel pipes, multi-layer steel wire reinforced rubber hoses, standard threaded fittings; surface anti-corrosion treatment, rated pressure ≥31.5MPa, pressure-tested to 1.5 times rated pressure

1. Long-term high-pressure hydraulic impact causes pipeline fatigue and thinning; 2. Vibration during equipment transfer leads to fitting loosening and local wear; 3. Outdoor corrosion and drilling fluid splashing cause surface rust and hose aging.

1. Inspect pipelines for leaks, bulges, and corrosion before each drilling operation; 2. Check fitting tightness after transfer and re-tighten if needed; 3. Avoid dragging pipelines on the ground to prevent scratches.

2. Supporting Components (Fixing & Stabilizing Parts)

Supporting components (support assemblies) fix the hydraulic winch lines to the SJ Petro ZJ40 drilling rig body, ensuring structural stability and reducing vibration during winch operation and equipment transfer. In mobile drilling scenarios, frequent vibration easily causes support loosening, deformation, or breakage—leading to pipeline displacement, friction, and leakage. These parts are made of high-strength materials, ensuring load-bearing capacity and stability, complying with API 6D auxiliary component standards.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

Support assembly

Z07040100001AA

Q235B carbon steel, precision welded, surface hot-dip galvanized + anti-rust coating, high toughness and corrosion resistance, designed for winch pipeline fixing

1. Vibration during winch operation and equipment transfer causes welding seam fatigue and cracking; 2. Outdoor corrosion leads to surface rust and structural weakening; 3. Over-tightening during installation causes deformation.

1. Check support welding seams for cracks monthly; 2. Clean surface rust regularly and reapply anti-rust coating; 3. Ensure uniform force during installation to avoid deformation.

2

Support assembly

Z07040100002AA

Q235B carbon steel, precision welded, surface hot-dip galvanized + anti-rust coating, high toughness and corrosion resistance, designed for winch pipeline fixing

1. Vibration during winch operation and equipment transfer causes welding seam fatigue and cracking; 2. Outdoor corrosion leads to surface rust and structural weakening; 3. Over-tightening during installation causes deformation.

1. Check support welding seams for cracks monthly; 2. Clean surface rust regularly and reapply anti-rust coating; 3. Ensure uniform force during installation to avoid deformation.

3. Hose Assemblies (Flexible Transmission Parts)

Hose assemblies are flexible transmission parts of the hydraulic winch lines, connecting fixed pipelines and the winch actuator to adapt to the winch’s movement. In drilling scenarios, they face high-pressure impact, frequent bending, friction with equipment, and outdoor aging—easily causing wear, bulging, cracking, or bursting. These assemblies comply with SAE J517 standards, with multi-layer steel wire reinforcement and oil-resistant rubber, ensuring flexibility and durability.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

Hose assembly 32Ⅲ-1200

1101021057

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 32mm, length 1200mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

2

Hose assembly 32Ⅲ-2850

1101021077

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 32mm, length 2850mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

3

Hose assembly 25Ⅲ-2850

1101017042

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 2850mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

4

Hose assembly 25Ⅲ-2800

1101007041

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 2800mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

5

Hose assembly 25Ⅲ-2880

1101017044

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 2880mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

6

Hose assembly 25Ⅲ-3000

1101017046

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 3000mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

7

Hose assembly 25Ⅲ-2870

1101017043

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 2870mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

8

Hose assembly 25Ⅲ-1800

1101017029

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 1800mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

9

Hose assembly 25Ⅲ-1500

1101017025

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 1500mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

10

Hose assembly 25Ⅲ-1850

1101017030

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 1850mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

11

Hose assembly 25Ⅲ-3050

1101017045

Multi-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 3050mm; oil-resistant, pressure-resistant (≥31.5MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

12

Hose assembly 16Ⅰ-1000

1101008038

Single-layer steel wire reinforced nitrile rubber (NBR), inner diameter 16mm, length 1000mm; oil-resistant, pressure-resistant (≥21MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

13

Hose assembly 16Ⅰ-1500

1101008041

Single-layer steel wire reinforced nitrile rubber (NBR), inner diameter 16mm, length 1500mm; oil-resistant, pressure-resistant (≥21MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

14

Hose assembly 25Ⅰ-3000

1101015051

Single-layer steel wire reinforced nitrile rubber (NBR), inner diameter 25mm, length 3000mm; oil-resistant, pressure-resistant (≥21MPa), temperature resistance (-30℃~+120℃), standard fittings

1. High-pressure hydraulic impact causes inner rubber layer damage; 2. Frequent bending during winch operation leads to steel wire fatigue and breakage; 3. Friction with equipment causes outer cover wear.

1. Avoid excessive bending (minimum bending radius ≥5 times inner diameter); 2. Check for bulges, cracks, and wear weekly; 3. Replace if outer cover wear exposes steel wire.

4. Steel Pipes (Fixed Transmission Parts)

Steel pipes are fixed transmission parts of the hydraulic winch lines, used to connect fixed components of the hydraulic system, ensuring stable hydraulic oil transmission. In drilling scenarios, they face high-pressure impact, outdoor corrosion, and vibration-induced deformation—easily causing wear, rust, or blockage. These steel pipes comply with API 6D standards, with precision honing and anti-corrosion treatment, ensuring pressure resistance and long service life.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

Steel pipe 25

P9870122AA

20# seamless carbon steel, outer diameter 25mm, precision honing inner wall (surface finish ≤Ra0.8μm), surface anti-corrosion coating, pressure-resistant ≥31.5MPa

1. High-pressure hydraulic impact causes pipe wall fatigue and thinning; 2. Outdoor corrosion and drilling fluid splashing cause surface rust and inner wall scaling; 3. Vibration causes pipe bending and deformation.

1. Check for rust, deformation, and blockage monthly; 2. Clean inner wall scaling annually; 3. Avoid collision with steel pipes during operation to prevent bending.

2

Steel pipe 25

P9870123AA

20# seamless carbon steel, outer diameter 25mm, precision honing inner wall (surface finish ≤Ra0.8μm), surface anti-corrosion coating, pressure-resistant ≥31.5MPa

1. High-pressure hydraulic impact causes pipe wall fatigue and thinning; 2. Outdoor corrosion and drilling fluid splashing cause surface rust and inner wall scaling; 3. Vibration causes pipe bending and deformation.

1. Check for rust, deformation, and blockage monthly; 2. Clean inner wall scaling annually; 3. Avoid collision with steel pipes during operation to prevent bending.

3

Steel pipe 32

P9870124AA

20# seamless carbon steel, outer diameter 32mm, precision honing inner wall (surface finish ≤Ra0.8μm), surface anti-corrosion coating, pressure-resistant ≥31.5MPa

1. High-pressure hydraulic impact causes pipe wall fatigue and thinning; 2. Outdoor corrosion and drilling fluid splashing cause surface rust and inner wall scaling; 3. Vibration causes pipe bending and deformation.

1. Check for rust, deformation, and blockage monthly; 2. Clean inner wall scaling annually; 3. Avoid collision with steel pipes during operation to prevent bending.

5. Pipe Clamps (Fixing & Protecting Parts)

Pipe clamps fix hoses and steel pipes to the support assemblies and drilling rig body, reducing vibration-induced friction and displacement—protecting pipelines from wear and leakage. In drilling scenarios, frequent vibration easily causes pipe clamp loosening, deformation, or wear—leading to pipeline displacement and friction damage. These pipe clamps comply with ANSI/ASME B1.20.1 standards, with high-strength materials and precision processing, ensuring firm fixing.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

Z1" pipe clamp

QBJ11040850

Q235B carbon steel, surface galvanized, precision stamping, inner rubber gasket (NBR), designed for 1" pipeline fixing

1. Vibration during winch operation and equipment transfer causes bolt loosening and clamp deformation; 2. Outdoor corrosion leads to surface rust; 3. Over-tightening causes inner rubber gasket damage.

1. Check and re-tighten bolts weekly; 2. Replace inner rubber gasket if damaged; 3. Clean surface rust regularly and reapply anti-rust coating.

2

Z1/4" pipe clamp 1

QBJ11041055

Q235B carbon steel, surface galvanized, precision stamping, inner rubber gasket (NBR), designed for 1/4" pipeline fixing

1. Vibration during winch operation and equipment transfer causes bolt loosening and clamp deformation; 2. Outdoor corrosion leads to surface rust; 3. Over-tightening causes inner rubber gasket damage.

1. Check and re-tighten bolts weekly; 2. Replace inner rubber gasket if damaged; 3. Clean surface rust regularly and reapply anti-rust coating.

6. Hydraulic Quick Couplings (Quick Connection Parts)

Hydraulic quick couplings enable quick connection and disconnection of hydraulic winch lines, facilitating maintenance and pipeline replacement. In drilling scenarios, frequent plugging and unplugging, high-pressure impact, and dust intrusion easily cause coupling wear, leakage, or jamming—leading to hydraulic system pressure loss. These couplings comply with SAE J517 standards, with precision machining and reliable sealing, ensuring quick connection and tight sealing.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

Hydraulic quick coupling 25

4700600246

Carbon steel (45#) shell, stainless steel (304) valve core, nitrile rubber (NBR) sealing ring, inner diameter 25mm, pressure-resistant ≥31.5MPa, quick plug-in design

1. Frequent plugging and unplugging causes valve core and sealing ring wear; 2. Dust and impurities intrusion causes jamming and leakage; 3. High-pressure impact causes valve core deformation.

1. Clean the coupling interface before plugging in to avoid dust intrusion; 2. Avoid violent plugging and unplugging; 3. Check for leakage after connection and replace sealing ring if needed.

2

Hydraulic quick coupling 30

4700600247

Carbon steel (45#) shell, stainless steel (304) valve core, nitrile rubber (NBR) sealing ring, inner diameter 30mm, pressure-resistant ≥31.5MPa, quick plug-in design

1. Frequent plugging and unplugging causes valve core and sealing ring wear; 2. Dust and impurities intrusion causes jamming and leakage; 3. High-pressure impact causes valve core deformation.

1. Clean the coupling interface before plugging in to avoid dust intrusion; 2. Avoid violent plugging and unplugging; 3. Check for leakage after connection and replace sealing ring if needed.

7. Fittings & Bushings (Connection & Adaptation Parts)

Fittings and bushings connect different parts of the hydraulic winch lines (hoses, steel pipes, couplings), adapting to different thread sizes and connection modes. In drilling scenarios, frequent disassembly, vibration, and high-pressure impact easily cause thread wear, loosening, or leakage—leading to hydraulic system failure. These parts comply with ANSI/ASME B1.20.1 standards, with precision threads and high-strength materials, ensuring reliable connection.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

M39X2-Z1"135%%D fitting

QBJ7013908

45# carbon steel, precision threaded (M39X2/Z1"), surface galvanized, high pressure resistance, used for pipeline angle connection

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. High-pressure impact causes fitting deformation.

1. Apply thread sealant before installation; 2. Tighten to specified torque with a torque wrench; 3. Replace if thread wear or deformation is found.

2

M42X2-Z1/4" fitting 1

QBJ5014210

45# carbon steel, precision threaded (M42X2/Z1/4"), surface galvanized, high pressure resistance, used for pipeline connection

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. High-pressure impact causes fitting deformation.

1. Apply thread sealant before installation; 2. Tighten to specified torque with a torque wrench; 3. Replace if thread wear or deformation is found.

3

M39X2-Z1" fitting

QBJ5013908

45# carbon steel, precision threaded (M39X2/Z1"), surface galvanized, high pressure resistance, used for pipeline connection

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. High-pressure impact causes fitting deformation.

1. Apply thread sealant before installation; 2. Tighten to specified torque with a torque wrench; 3. Replace if thread wear or deformation is found.

4

M39X2-Z1" fitting

QBJ6013908

45# carbon steel, precision threaded (M39X2/Z1"), surface galvanized, high pressure resistance, used for pipeline connection

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. High-pressure impact causes fitting deformation.

1. Apply thread sealant before installation; 2. Tighten to specified torque with a torque wrench; 3. Replace if thread wear or deformation is found.

5

M27X2-NPT1/2 fitting

QBJ6012704

45# carbon steel, precision threaded (M27X2/NPT1/2"), surface galvanized, high pressure resistance, used for pipeline connection

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. High-pressure impact causes fitting deformation.

1. Apply thread sealant before installation; 2. Tighten to specified torque with a torque wrench; 3. Replace if thread wear or deformation is found.

6

M27X2-NPT1/2 bushing

QBJ10082704

45# carbon steel, precision threaded (M27X2/NPT1/2"), surface galvanized, used for adapting different thread sizes

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. Corrosion causes thread rust and jamming.

1. Apply thread sealant before installation; 2. Tighten to specified torque; 3. Replace if thread wear or rust is found.

7

NPT1-NPT1/2 bushing

QBJ10010804

45# carbon steel, precision threaded (NPT1/NPT1/2"), surface galvanized, used for adapting different thread sizes

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. Corrosion causes thread rust and jamming.

1. Apply thread sealant before installation; 2. Tighten to specified torque; 3. Replace if thread wear or rust is found.

8

NPT1/2 fitting

QBJ5220404

45# carbon steel, precision threaded (NPT1/2"), surface galvanized, high pressure resistance, used for pipeline connection

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. High-pressure impact causes fitting deformation.

1. Apply thread sealant before installation; 2. Tighten to specified torque with a torque wrench; 3. Replace if thread wear or deformation is found.

9

NPT1/2 tee

QBJ806040404

45# carbon steel, precision threaded (NPT1/2"), surface galvanized, tee structure, used for pipeline branching

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. Uneven pressure causes tee deformation.

1. Apply thread sealant before installation; 2. Tighten all ports to specified torque; 3. Check for leakage monthly.

10

M27X2-NPT1/2 fitting

QBJ5012704

45# carbon steel, precision threaded (M27X2/NPT1/2"), surface galvanized, high pressure resistance, used for pipeline connection

1. Frequent disassembly causes thread wear; 2. Vibration leads to loosening and leakage; 3. High-pressure impact causes fitting deformation.

1. Apply thread sealant before installation; 2. Tighten to specified torque with a torque wrench; 3. Replace if thread wear or deformation is found.

8. Sealing & Control Components (Sealing & Safety Parts)

Sealing and control components (sealing washer, check valve) ensure tight sealing of the hydraulic winch lines and control hydraulic oil flow direction—preventing leakage and ensuring system safety. In drilling scenarios, sealing washers are prone to aging and deformation, while check valves are easily blocked by impurities—leading to leakage and pressure loss. These components comply with API 6D and SAE J517 standards, ensuring reliable performance.

No.

Part Name

Part Model

Material

Main Wear Reasons

Usage Precautions

1

Sealing washer 27

4323100003

Copper alloy (H62), soft texture, precision stamping, thickness 27mm, good sealing performance, used for thread connection sealing

1. Over-tightening during installation causes deformation; 2. Repeated disassembly leads to wear; 3. Corrosion causes surface rust and poor sealing.

1. Tighten appropriately to avoid over-tightening; 2. Replace after 2-3 times of disassembly; 3. Apply anti-rust grease before installation.

2

Check valve

4900300007

45# carbon steel valve body, stainless steel (304) valve core, nitrile rubber (NBR) sealing ring, pressure-resistant ≥31.5MPa, one-way flow control

1. Hydraulic oil impurities cause valve core jamming; 2. High-pressure impact causes valve core wear; 3. Long-term use leads to sealing ring aging and leakage.

1. Replace hydraulic oil and filters on schedule to avoid contamination; 2. Check for pressure maintaining performance quarterly; 3. Disassemble and clean annually, replace worn parts.

On-site Fault Maintenance Case

Case 1: A drilling team encountered severe hydraulic oil leakage from the SJ Petro ZJ40 hydraulic winch lines (Z07040000002AA) during winch lifting operation, leading to reduced system pressure and inability to lift drilling tools. On-site inspection found that the Hydraulic Quick Coupling 25 (4700600246) was leaking—due to frequent plugging and unplugging causing wear of the internal sealing ring, and dust intrusion leading to valve core jamming. Additionally, the adjacent Z1" Pipe Clamp (QBJ11040850) was loose, causing the hose assembly to rub against the equipment and wear the outer cover. The root cause was insufficient daily maintenance (failure to clean coupling interfaces and check pipe clamp tightness). The solution was to replace the worn sealing ring of the quick coupling and the loose pipe clamp with original matching parts, clean the coupling interface and hose surface, apply thread sealant to the pipe clamp bolts, and tighten to specified torque. After reassembly, the leakage stopped, system pressure returned to normal, and the winch operated stably. This case complies with the fault handling guidelines for hydraulic pipeline leakage specified in API 6D Clause 7.2 and SAE J517 Clause 5.3, emphasizing the importance of daily maintenance for quick couplings and pipe clamps.

FAQ (Frequently Asked Questions)

No.

Questions

Answers

1

Are all these accessories fully compatible with the SJ Petro ZJ40 Hydraulic Winch Lines (Z07040000002AA)?

Yes, all accessories are specially designed and produced for the SJ Petro ZJ40 Hydraulic Winch Lines (Z07040000002AA). Each part’s model and size strictly match the original equipment, ensuring 100% compatibility. They also comply with API 6D, SAE J517, and ANSI/ASME B1.20.1 standards, guaranteeing reliable connection, tight sealing, and stable operation in petroleum drilling scenarios.

2

What are the key wearing parts of the hydraulic winch lines, and how often should they be replaced?

Key wearing parts include hose assemblies, quick couplings, sealing washers, and pipe clamps. Replacement cycles (for petroleum drilling scenarios): Hose assemblies every 8-10 months (or if wear/bulge is found); quick coupling sealing rings every 6 months; sealing washers after 2-3 disassembly times; pipe clamps every 12 months. Always use original matching parts for replacement to ensure compatibility.

3

How to prevent hydraulic oil leakage in the winch lines, and what should I do if leakage occurs?

Prevention: ① Conduct daily leak checks on fittings, couplings, and hoses; ② Replace sealing components and wearing parts on schedule; ③ Use clean hydraulic oil and replace filters regularly; ④ Ensure pipe clamps are tight to avoid pipeline friction. Troubleshooting: ① Locate the leak point (check couplings, fittings, and hoses first); ② Replace worn sealing components or fittings; ③ Tighten loose connections and clean dust from coupling interfaces.

Procurement Guide

All accessories in this catalog are made of high-quality materials, processed with precision, and fully comply with the safety and performance requirements of the SJ Petro ZJ40 Hydraulic Winch Lines (Z07040000002AA). They are specially designed for petroleum drilling scenarios, effectively solving common problems of inferior accessories—short service life, easy damage, mismatching, and poor sealing—helping you reduce maintenance costs, avoid costly downtime, and ensure the continuous and stable operation of your drilling winch. These products meet API 6D, SAE J517, and ANSI/ASME standards, with strict quality inspection and pressure testing before leaving the factory, ensuring reliability and durability. Whether you need to replace worn parts, perform routine maintenance, or reserve spare parts for emergencies, we provide comprehensive support and professional technical guidance. Please select the required accessories according to the part name and model in the catalog and contact us for procurement. We are committed to providing you with high-quality products, reasonable prices, and thoughtful service, helping you improve drilling efficiency and reduce operational risks.

 

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Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.


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