ZJ70 Line Filter, Crane ZJ50/3150DZ Disc Brake Pipeline & Boiler WNS2-1.25-Y Control Transformer

Introduction: Precision-Matched Components for Drilling Rigs, Cranes, 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, cranes, industrial boilers, and auxiliary equipment. Our product portfolio is tailored to fit ZJ30, ZJ45, ZJ50, ZJ70, ZJ70D, ZJ70DB, ZJ90DB, DQ70, DQ70BSD drilling rigs, Crane ZJ50/3150DZ, Boiler WNS2-1.25-Y, Top Drive DQ250Z/DQ17-007/DQ17-008, ZJ30DBS, and various hydraulic, transmission, electrical, and drilling systems. From ZJ70 line filters and Crane ZJ50/3150DZ disc brake pipeline assemblies to Boiler WNS2-1.25-Y control transformers, Intertech hydraulic pumps, and inserted carbide roller bits, every part is engineered to meet the rigorous operational demands of oilfield drilling, crane operation, boiler work, and heavy machinery maintenance—adhering to ISO, API, and GB international industry standards for reliability, safety, and durability.

Our target users include oilfield drilling companies, drilling rig operators, crane service providers, boiler maintenance teams, heavy machinery repair workshops, and industrial equipment operators. 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-ring (5300100043) or a complete hydraulic pump (INTERTECH M37x978BAJC20-7), 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, cranes, 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 ZJ70 line filters and Crane ZJ50/3150DZ disc brake pipelines). By providing ISO/API/GB-compliant, high-compatibility parts—such as the ZJ70 Line Filter TFX400×180, Crane ZJ50/3150DZ Drilling Rig Disc Brake Pipeline Assembly A13Ⅱ6m.3M2.5, Boiler WNS2-1.25-Y Control Transformer NDK-25, and INTERTECH Hydraulic Pump M37x978BAJC20-7—we help you cut unplanned downtime, reduce maintenance costs, and ensure your equipment operates stably in long-term, high-intensity, high-pressure (up to 35MPa), high-temperature, 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 for drilling, crane, boiler, and industrial systems.

Product Introduction

Our product range covers 16 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: Upper IBOP (Mfg P/N 9703340000), Winch Brake Operating Mechanism ZJ70DB, Winch Control Handle DDC81-A1, Telescopic Cylinder Z07130000019AA, Cylinder Liner ZJ70D XJFH5/35KS-2014, Inserted Carbide Roller Bit 12-1/4″ SKH437G, Gear F2000000032, SEAT 6″ (PART NUMBER: J001002-031), P60266-1 10 3/4″-OTHER 8R STC MRP-1034S-OP.

• Crane Parts: Crane ZJ50/3150DZ Drilling Rig Disc Brake Pipeline Assembly A13Ⅱ6m.3M2.5.

• Boiler Components: Boiler WNS2-1.25-Y Control Transformer NDK-25.

• Hydraulic & Pneumatic Pumps: INTERTECH HYDRAULIC PUMP (M37x978BAJC20-7), Booster Pump V101P7P11D20L, Three-Cylinder Crankshaft Plunger Pump FKQ1280-8 QB21-47, Hand Oil Pump 137-5541, Pump 3190675.

• Filters & Filter Elements: Line Filter ZJ70 TFX400×180, Diesel Filter 3825133, Oil Filter 1300108717 (Top Drive DQ250Z DQ17-007 DQ17-008, ZJ30DBS), Diesel Filter 1R0750.

• Sealing & Fastening Parts: O-Ring 5300100043, Combination Washer ZJ70DB Φ27, Spring Washer 420503011161160000, Torque Converter Gasket 23046658, Frame Plate Gasket Inserts B15041A05, Bonnet Seal AH1001010508B1, Sealing Ring P1000167AA, O-Type Sealing Ring (Outer) X12-70-375, Oil Seal 5300200116, Stud Bolt X20-01-006, U-Type Bolt DQ70 M20×102 1.11.06.003, Hex Socket Head Cap Screw DQ70BSD 4201120090 M6×25.

• Valves & Valve Parts: Accumulator Charging Check Valve FKQ640-6, Valve Seat Ring 1W5283, High Pressure Joint and Gasket Ring R35 4701200002.

• Pipelines & Fittings: Self-Sealing Male Connector ZJ45 MPD1-35MPa, Tee 520209050400200072, Straight Connector ZJ30 M33×2-M39×2A, Y/J0015 Tee, Quick Coupler DQ70BSD 5126050040, Water Temperature and Flow Four-Way MSLT-PJ-6.

• Electrical & Instrumentation Parts: Water and Gas Instrumentation ZJ70D AF500103021300, Control Button ZJ90DB BZA8030-A1, Indicator Light LY8Y2 Green (Rear Cable Type), Light Bulb 0405-0026-00 130V, Dynamo 24V 45A/0120488294, Pressure Gauge YN60-III, Explosion-Proof Plug 25YT-4J Baoji Youtai, Key ZLYOC850-94A-319.

• Transmission & Bearing Parts: Bushing BK-3-7B1, Self-Lubricating Bearing 430117010041310000, Free Wheel Roller 6837976, PLATE N 6834679.

• Engine & Cylinder Parts: Water Pump Shaft 3042827, Oil Cooler 1330125, Push Ring B029.

• Clutch & Torque Converter Parts: Clutch Assembly LT1170/250T 115.02.00, Torque Converter Gasket 23046658.

• Top Drive Parts: Oil Filter 1300108717 (compatible with Top Drive DQ250Z, DQ17-007, DQ17-008, ZJ30DBS).

• Drilling Bits: Inserted Carbide Roller Bit 12-1/4″ SKH437G.

• Miscellaneous Components: None specified, covering all remaining parts such as hand oil pumps and control handles.

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:

• ZJ70 Line Filter TFX400×180: Filters impurities from hydraulic oil or other fluids in ZJ70 drilling rig systems, protecting hydraulic components such as pumps, valves, and cylinders from wear and damage, ensuring stable system operation.

• Crane ZJ50/3150DZ Drilling Rig Disc Brake Pipeline Assembly A13Ⅱ6m.3M2.5: Transmits hydraulic fluid to the disc brake system of Crane ZJ50/3150DZ drilling rigs, ensuring reliable braking performance during lifting and movement of heavy components, critical for operator safety.

• Boiler WNS2-1.25-Y Control Transformer NDK-25: Converts input voltage to the required level for WNS2-1.25-Y industrial boiler control systems, ensuring stable power supply to electrical components such as sensors and controllers, supporting safe and efficient boiler operation.

• INTERTECH Hydraulic Pump M37x978BAJC20-7: Provides high-pressure hydraulic fluid to industrial and drilling hydraulic systems, delivering stable flow and pressure to power hydraulic components such as cylinders and motors, adhering to high-quality standards for reliable performance.

• Self-Sealing Male Connector ZJ45 MPD1-35MPa: Connects hydraulic pipelines in ZJ45 drilling rigs, featuring self-sealing design to prevent fluid leakage under high pressure (up to 35MPa), ensuring reliable fluid transmission in harsh drilling environments.

• Inserted Carbide Roller Bit 12-1/4″ SKH437G: Drills through rock formations during oilfield drilling operations, featuring inserted carbide teeth for high wear resistance and efficient cutting performance, suitable for various complex geological conditions.

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:

• ZJ70 Line Filter TFX400×180: High-precision filter media for efficient impurity filtration; corrosion-resistant housing to adapt to hydraulic fluid environments; large filter area to extend service life; direct replacement design for ZJ70 drilling rigs, ensuring perfect compatibility.

• Crane ZJ50/3150DZ Drilling Rig Disc Brake Pipeline Assembly A13Ⅱ6m.3M2.5: High-pressure resistant hydraulic hose for stable fluid transmission; precision-machined connectors for leak-proof connection; 6m length and 3M2.5 specification to fit Crane ZJ50/3150DZ drilling rig disc brake systems, ensuring reliable braking performance.

• Boiler WNS2-1.25-Y Control Transformer NDK-25: High-efficiency iron core for stable voltage conversion; flame-retardant housing for electrical insulation; NDK-25 specification to match WNS2-1.25-Y boiler control systems, ensuring safe and stable power supply.

• INTERTECH Hydraulic Pump M37x978BAJC20-7: Precision-machined internal components for efficient fluid delivery; high-strength housing for pressure resistance; durable seal design to prevent leakage, ensuring long-term reliable operation in industrial and drilling environments.

• Sealing & Connector Parts (O-Ring 5300100043 & Self-Sealing Male Connector ZJ45 MPD1-35MPa): O-ring made of high-quality nitrile rubber or Viton for excellent sealing performance and resistance to oil and high temperatures; self-sealing connector made of high-strength alloy steel for high-pressure resistance, ensuring leak-proof connection in hydraulic systems.

Applicable Working Conditions

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

• Oilfield Drilling Sites: Suitable for ZJ30, ZJ45, ZJ50, ZJ70, ZJ70D, ZJ70DB, ZJ90DB, DQ70, DQ70BSD drilling rigs, Top Drive DQ250Z/DQ17-007/DQ17-008, ZJ30DBS; withstanding high temperature (up to 200℃), high pressure (up to 35MPa), dusty, corrosive, and high-vibration environments—ideal for onshore and offshore drilling operations.

• Crane Operations: Applicable to Crane ZJ50/3150DZ drilling rigs; adapting to high-load, outdoor working environments, ensuring stable operation of disc brake systems with reliable pipeline assemblies.

• Industrial Boiler Systems: Suitable for Boiler WNS2-1.25-Y; adapting to high-temperature, high-pressure, and high-humidity environments, ensuring stable boiler operation with reliable control transformers.

• Hydraulic & Industrial Systems: Used in Intertech hydraulic pumps, high-pressure connectors, and hydraulic pipelines; adapting to high-pressure and high-vibration environments, ensuring reliable fluid transmission and control.

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 ZJ70 line filters, Crane ZJ50/3150DZ disc brake pipeline assemblies, and Boiler WNS2-1.25-Y control transformers every 65 operating hours; inspect sealing parts (O-Ring 5300100043) and filters (Oil Filter 1300108717) for wear or clogging, and replace them in time to avoid system failure.

• Cleaning & Lubrication: Keep line filters, hydraulic pumps (INTERTECH M37x978BAJC20-7), and bearings (Self-Lubricating Bearing 430117010041310000) clean; apply appropriate lubricating oil to reduce friction and prevent rust and wear. For hydraulic pipelines and connectors, check for leaks and tighten connections as needed.

• 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 boiler parts). For high-pressure pumps and valves, store them in a cool, moisture-free environment to maintain their performance.

• Installation Notes: Ensure parts are installed correctly according to the equipment manual; avoid forced installation (e.g., aligning hex socket head cap screws DQ70BSD 4201120090 M6×25 properly to prevent damage). For drilling rig components, crane parts, and boiler parts, follow OEM installation guidelines to ensure compatibility and safety.

• Electrical & Instrumentation Maintenance: Regularly check boiler control transformers (NDK-25) and pressure gauges (YN60-III) for proper operation; inspect explosion-proof plugs (25YT-4J) for loose connections; clean electrical components to prevent dust accumulation and short circuits.

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: Line Filter Clogging in ZJ70 Drilling Rig

A customer’s ZJ70 drilling rig experienced hydraulic system pressure drop and component jamming due to a clogged line filter (TFX400×180). We supplied the ZJ70 Line Filter TFX400×180, which is fully compatible with the rig. After replacement and system flushing, the hydraulic pressure returned to normal, all components operated smoothly, and the rig resumed drilling operations, reducing downtime by 80%.

Case 2: Disc Brake Pipeline Leakage in Crane ZJ50/3150DZ

A drilling team’s Crane ZJ50/3150DZ had reduced braking performance due to a leaking disc brake pipeline assembly (A13Ⅱ6m.3M2.5), risking safety during lifting operations. We provided the Crane ZJ50/3150DZ Disc Brake Pipeline Assembly, which fits perfectly with the crane. After replacement and pressure testing, the brake system operated reliably, ensuring safe lifting, and maintenance costs were reduced by 75% compared to repairing the old pipeline.

Case 3: Control Transformer Failure in Boiler WNS2-1.25-Y

An industrial plant’s WNS2-1.25-Y boiler had electrical component failure due to a faulty control transformer (NDK-25), causing the boiler to shut down. We supplied the Boiler WNS2-1.25-Y Control Transformer NDK-25, which is compatible with the boiler’s control system. After replacement, the boiler’s electrical components resumed normal operation, the boiler operated stably for 900 hours, and production efficiency was fully restored.

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 ZJ70 Line Filter and replacing the Crane ZJ50/3150DZ Disc Brake Pipeline Assembly. 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 ZJ70 Line Filter TFX400×180, Crane ZJ50/3150DZ Disc Brake Pipeline Assembly, and Boiler WNS2-1.25-Y Control Transformer to Intertech hydraulic pumps, self-sealing connectors, and inserted carbide roller bits—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 crane/boiler 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.