ZJ50 Winch Drive Shaft, Boiler WNS1-1.25 Servo Motor

Introduction: Precision-Matched Components for Drilling Rigs, Boilers & Industrial Systems

We specialize in manufacturing and supplying high-performance mechanical, hydraulic, electrical, and drilling parts that are fully compatible with a wide range of oilfield drilling rigs, industrial boilers, well control systems, and auxiliary equipment. Our product portfolio is tailored to fit ZJ30C, ZJ40, ZJ40L, ZJ50, ZJ50L, ZJ70D drilling rigs, Boiler WNS1-1.25, Boiler DZG0.7-0.7-AⅡ, FKQ-6406 well control systems, and various hydraulic, transmission, electrical, and drilling systems. From ZJ50 winch drive shafts and ZJ70D hydraulic valves to boiler servo motors, inclinometer components, and explosion-proof equipment, every part is engineered to meet the rigorous operational demands of oilfield drilling, well control, industrial boiler operation, and heavy machinery maintenance—adhering to international industry standards for reliability and safety.

Our target users include oilfield drilling companies, drilling rig operators, boiler maintenance teams, well logging service providers, and heavy machinery repair workshops. We deeply understand your core needs: parts that fit seamlessly without modification, durable performance that minimizes unplanned downtime, cost-effective solutions that reduce long-term maintenance budgets, and reliable supply for both routine replacements and emergency repairs. Whether you need a single O-type sealing ring (X12-70-376) or a complete engine repair kit (6V9221), we deliver one-stop supply solutions that balance OEM-level quality, perfect compatibility, and competitive pricing—helping you keep your equipment running efficiently, safely, and continuously, while avoiding costly delays caused by mismatched or low-quality components.

Core Purpose: Solve Maintenance Pain Points & Ensure Equipment Reliability

The mechanical parts we supply are critical to the safety, performance, and longevity of your drilling rigs, boilers, and industrial systems. Our core mission is to address the most frustrating challenges you face in daily operations: mismatched parts causing costly installation delays, low-quality components leading to frequent breakdowns, exorbitant OEM part costs, and difficulty sourcing hard-to-find specialized components (such as ZJ50 winch drive shafts and Boiler WNS1-1.25 servo motors). By providing ISO/API/GB-compliant, high-compatibility parts—such as the ZJ50 Winch Drive Shaft, Boiler WNS1-1.25 Servo Motor, ZJ70D Two Position Three Way Valve DN7, and FKQ-6406 Three-Cylinder Plunger Pump Packing Group—we help you cut unplanned downtime, reduce maintenance costs, and ensure your equipment operates stably in long-term, high-intensity, high-pressure (up to 70MPa), corrosive, and high-vibration working environments. Our parts are designed to not just replace old components, but to enhance equipment performance, extend service life, and support seamless day-to-day operations.

Product Introduction

Our product range covers 10 major categories, all manufactured in strict compliance with international industry standards (ISO 9001, API 7-1, API 16C, GB/T) to guarantee compatibility, durability, and performance. Key products include:

• Drilling Rig Core Components: Winch Drive Shaft ZJ-50/ZJ40L, Turntable 275 Type Roller Square Center-Bushing Roller 51/4″, Working Tongs Cylinder Assembly BK-7-7Ag, Blocking Board BK-6-6A, Brake Device ZJ50L Closed Clamp Arm Bearing Bush BB-37, Disc Brake Block BK-1-6A, Brake Shoe Bolt ZJ40 M12×30, Gearbox ZJ-30C Transmission Box Oil Pressure Gauge 3800250014.

• Hydraulic & Pneumatic Valves: Hydraulic Cat Head Electric Control Valve 4WE6J50/AW220-50, Two Position Three Way Valve ZJ70D DN7, Shuttle Valve 278614/280479/IA341, Pneumatic Pressure Regulating Valve JYQ21-25 DTYF-00, Air Control Valve V-3, Control System ZJ50 Three-Position Hydraulic Valve 4WM16C50/F.

• Boiler Components: Boiler WNS1-1.25 Servo Motor, Boiler DZG0.7-0.7-AⅡ Glass Plate Water Level Gauge B2.5-TG250, Water Heater 4W4642.

• Pumps & Pump Parts: Three-Cylinder Plunger Pump Packing Group FKQ-6406 (Guangzhou), Gear Oil Pump Device BC051.06.00, Fuel Pump 1W1700, STL45147 Impeller.

• Sealing & Fastening Parts: O-Type Sealing Ring (Inner) X12-70-376, O-Type Sealing Ring S520-70034510, Seal Half Ring F751.14.04.07.02.00, Seal 6V3319, Double Taper Pin P2000906AA, Fixed Card AH1001010521, Gland B044G01, Piston Ring 7W2221.

• Filters & Lubrication Parts: Oil Filter LPG-105 (Diameter 50mm), Fuel Filter Fleetguard FS-1000 (Part Number: 3329289), Air Filter 6I2502/P532502, Faucet SL-170 Flushing Pipe Packing.

• Repair Kits: Repair Kit 1996163, Engine Repair Kit 6V9221, Allison Repair Kit 23019152.

• Electrical & Instrumentation Parts: Weight Gauge ZCJY, Doctor Generator 120469102, Starter 24V 11 Tooth 50MT, Locating Ring 6834938, Current Transformer LMK2-0.66/30;150/5, Gearbox ZJ-30C Oil Pressure Gauge 3800250014.

• Inclinometer & Drilling Tools: Inclinometer LHE Type Self-Floating Electronic Single-Point Inclinometer Hanging Measuring Outer Cylinder LHSR, Inclinometer Compass MWD Motor Outer Cylinder 406095.

• Auxiliary & Safety Parts: Explosion-Proof Camera ZJYP-4-2, Explosion-Proof Plug YT100 Three Quadrupole (Baoji Youtai), Safety Valve Piston F800AH0000060103, Spring Safety Valve WG08003027, Oil Return Hose Assembly DQ70BSD 9722120013, Hose Assembly F381CACA151508 (Part Number: 9702010004), High Pressure Pipeline ZJ50 Φ101.6×70MPa 35CrMo, CRANK 35CrMo φ90-150/5 (Part Number: 9703330011), SLEEVE, SHAFT (Part Number: JC28/11d-06-18), Auxiliary Brake Static Friction Disc 508459 WCB324, Dynamic Friction Core 513667.

Function Description

Each product is designed to perform specific critical functions, ensuring the smooth, safe, and efficient operation of your equipment. Here’s how our key parts work:

• ZJ50 Winch Drive Shaft: Transmits power from the gearbox to the winch of ZJ50 drilling rigs, ensuring stable power transfer for lifting and lowering drill pipes during drilling operations—critical for maintaining drilling efficiency and safety.

• Boiler WNS1-1.25 Servo Motor: Regulates the operation of WNS1-1.25 industrial boilers, controlling fuel supply and combustion efficiency to maintain stable boiler pressure and temperature, ensuring safe and efficient boiler operation.

• ZJ70D Two Position Three Way Valve DN7: Controls the direction of hydraulic fluid flow in ZJ70D drilling rig hydraulic systems, regulating the operation of hydraulic components such as tongs and winches to support coordinated drilling operations.

• FKQ-6406 Three-Cylinder Plunger Pump Packing Group: Seals the plunger of FKQ-6406 three-cylinder plunger pumps, preventing fluid leakage and ensuring stable pump performance in well control systems.

• Inclinometer LHE Type Hanging Measuring Outer Cylinder LHSR: Protects the internal components of LHE type self-floating electronic single-point inclinometers, ensuring accurate well logging data collection in complex drilling environments.

• Fuel Filter Fleetguard FS-1000 (3329289): Filters impurities from diesel fuel, protecting the engine and fuel pump (1W1700) from wear and damage, ensuring reliable engine operation.

Structural Features

Our products adopt advanced structural design and high-quality materials to withstand harsh working conditions, ensuring long service life and reliable performance. Key structural features include:

• ZJ50 Winch Drive Shaft: Made of high-strength 35CrMo alloy steel, precision-machined to tight tolerances for stable power transmission; heat-treated surface for enhanced wear and corrosion resistance, designed to withstand high loads and high vibration in ZJ50 drilling rigs.

• Boiler WNS1-1.25 Servo Motor: Compact design with high torque output, IP54 protection rating for dust and water resistance, compatible with WNS1-1.25 boilers; stable speed regulation ensures precise control of boiler operations.

• ZJ70D Two Position Three Way Valve DN7: Manufactured from high-pressure resistant steel, precision-machined valve core for smooth operation and tight sealing; DN7 size perfectly matches ZJ70D drilling rig hydraulic systems, ensuring reliable flow direction control.

• FKQ-6406 Three-Cylinder Plunger Pump Packing Group: High-temperature and oil-resistant material construction, flexible design to fit FKQ-6406 plunger pumps tightly; prevents fluid leakage even in high-pressure well control environments.

• O-Type Sealing Ring (X12-70-376 & S520-70034510): Made of high-quality nitrile rubber or Viton, precision-machined to ensure a tight seal; resistant to oil, high temperature, and corrosion, suitable for hydraulic and pneumatic systems in drilling rigs and industrial equipment.

Applicable Working Conditions

Our products are widely used in various harsh and complex working environments, perfectly adapting to the needs of drilling, boiler operation, and industrial production:

• Oilfield Drilling Sites: Suitable for ZJ30C, ZJ40, ZJ40L, ZJ50, ZJ50L, ZJ70D drilling rigs, FKQ-6406 well control systems, and LHE/MDW inclinometers; withstanding high temperature (up to 180℃), high pressure (up to 70MPa), dusty, corrosive, and high-vibration environments—ideal for onshore and offshore drilling operations.

• Industrial Boiler Systems: Applicable to Boiler WNS1-1.25 and Boiler DZG0.7-0.7-AⅡ; adapting to high-temperature, high-pressure, and high-humidity environments, ensuring stable boiler operation with reliable servo motors and water level gauges.

• Hydraulic & Pneumatic Systems: Used in drilling rig hydraulic valves, gear oil pumps, and pneumatic pressure regulating valves; adapting to high-pressure and high-vibration environments, ensuring reliable fluid and air transmission and control.

• Well Logging & Well Control: Used in inclinometers, safety valves, and plunger pump packing groups; suitable for complex well conditions, ensuring accurate well logging data and safe well control operations.

Maintenance & Care Suggestions

Proper maintenance is key to extending the service life of mechanical parts and reducing replacement costs. Here are practical, easy-to-follow suggestions tailored to our products, designed to help you keep your equipment in optimal condition:

• Regular Inspection: Check ZJ50 winch drive shafts, ZJ70D hydraulic valves, and Boiler WNS1-1.25 servo motors every 70 operating hours; inspect seals (6V3319, X12-70-376) and filters (FS-1000, LPG-105) for wear or clogging, and replace them in time to avoid leaks or system failure.

• Cleaning & Lubrication: Keep winch drive shafts, gearbox components, and bearings (BB-37) clean; apply appropriate lubricating oil (matching the equipment manual) to reduce friction and prevent rust and wear. For hydraulic valves and pumps, ensure the hydraulic oil is clean and replace it regularly.

• Storage Requirements: Store parts in a dry, ventilated, and dust-free warehouse; avoid direct sunlight and contact with corrosive substances (especially electrical components, seals, and filters). For high-pressure pipelines (ZJ50 Φ101.6×70MPa) and valves, store them in a cool, moisture-free environment to maintain their pressure resistance.

• Installation Notes: Ensure parts are installed correctly according to the equipment manual; avoid forced installation (e.g., aligning double taper pins P2000906AA properly to prevent damage). For drilling rig components and boiler parts, follow OEM installation guidelines to ensure compatibility and safety.

• Filter & Seal Maintenance: Regularly replace air filters (6I2502/P532502) and fuel filters (FS-1000); check boiler water level gauges (B2.5-TG250) for clarity and accuracy; inspect O-type sealing rings and packing groups for wear and replace as needed to prevent leaks.

We supply the following spare parts:

On-Site Fault Maintenance Cases

Here are 3 real on-site maintenance cases, showing how our parts solve practical problems for customers, reduce downtime, and improve equipment performance:

Case 1: Winch Drive Shaft Failure in ZJ50 Drilling Rig

A customer’s ZJ50 drilling rig experienced winch jamming and power loss due to a worn winch drive shaft, leading to interrupted drilling operations. We supplied the ZJ50 Winch Drive Shaft, which is fully compatible with the rig. After replacement, the winch resumed smooth operation, and the rig operated stably for 800 hours, reducing downtime by 85% and ensuring uninterrupted drilling.

Case 2: Boiler Servo Motor Malfunction in WNS1-1.25 System

An industrial plant’s WNS1-1.25 boiler had unstable temperature and pressure due to a faulty servo motor, risking boiler safety. We provided the Boiler WNS1-1.25 Servo Motor, which fits perfectly with the boiler. After installation, the boiler’s temperature and pressure stabilized, and it operated safely for 900 hours, avoiding potential safety incidents and reducing maintenance costs.

Case 3: Hydraulic Valve Leak in ZJ70D Drilling Rig

An oilfield’s ZJ70D drilling rig had hydraulic fluid leakage from the two-position three-way valve, causing reduced hydraulic pressure and inefficient operation. We supplied the ZJ70D Two Position Three Way Valve DN7, which is compatible with the rig’s hydraulic system. After replacement, the leakage was eliminated, and the hydraulic system operated normally, improving drilling efficiency by 40%.

FAQ (Frequently Asked Questions)

Procurement & Technical Reference Standards

To help you purchase the right parts and solve technical problems efficiently, we provide clear procurement and technical reference standards that align with industry best practices and ISO/API requirements:

• Procurement Reference Standards: All parts are supplied with quality certificates (ISO 9001, API 7-1, API 16C), compatibility reports, and detailed specifications. You can purchase by equipment model, original part number, or custom requirements. We support both bulk and small-batch orders, providing flexible supply solutions to meet your routine maintenance and emergency repair needs. Our parts are priced competitively while maintaining OEM-level quality, helping you reduce long-term maintenance costs.

• Technical Reference Standards: For each product, we provide installation manuals, maintenance guides, and fault diagnosis methods. For example, we offer detailed instructions for installing the ZJ50 Winch Drive Shaft and replacing the ZJ70D Hydraulic Valve. We also provide material specifications, pressure resistance ratings, and operational guidelines to help your maintenance team solve technical issues quickly and accurately.

Conclusion & Procurement Invitation

Our full range of mechanical parts—from the ZJ50 Winch Drive Shaft, Boiler WNS1-1.25 Servo Motor, and ZJ70D Two Position Three Way Valve DN7 to drilling rig bearings, repair kits, and explosion-proof equipment—are engineered to solve your equipment maintenance pain points, improve operational efficiency, and reduce long-term costs. We adhere to strict quality control processes, ensuring each part is reliable, compatible, and durable, meeting the highest industry standards. Whether you need standard replacement parts, specialized components for ZJ series drilling rigs, or boiler/well control accessories, we are your trusted supply partner.

We invite you to contact us to discuss your specific needs. Provide us with your equipment model, part number, or application scenario, and our professional team will recommend the most suitable products for you. We are committed to providing high-quality products and thoughtful service to support your equipment’s stable operation and business development, helping you maximize productivity and minimize downtime.

contact us ：

Emeil: [email protected]   whatsapp: +86 15275658619

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