Parts Supply: IA479, MD50100THA1600-8701, ZJ-70

Introduction

We focus on the production and supply of high-precision, durable industrial equipment parts, covering a comprehensive range of components tailored for oil drilling rigs, boilers, piston pumps, gearboxes, and industrial hydraulic/pneumatic systems. Our product portfolio includes key parts such as the IA479 eight-cylinder component, high frequency low power tube MD50100THA1600-8701 CRYDOM, ZJ-70 oil drilling rig electromagnetic eddy current brake, Boiler WNS2-1.25-5Y diesel filter assembly BFP 10 L13/N, and ZJ30 dead rope sensor diaphragm JZG20-1—all engineered to meet the rigorous operational demands of heavy-duty industrial environments. Adhering to international standards (ISO 9001:2015, API 6A for oil drilling components, ASME B31.1 for high-temperature pipelines, and Ex d IIB T6 for explosion-proof parts), our parts prioritize seamless compatibility, long service life, and stable performance to address the core pain points of industrial operations. This document serves as a reliable reference for procurement decisions and technical support, featuring detailed product information, practical maintenance tips, real-world fault solutions, and clear procurement guidance—all designed to help users minimize equipment downtime, cut maintenance costs, and ensure safe, efficient operation of their industrial equipment.

Core Purpose & Target User Needs

Our industrial parts are precisely adapted to key equipment models, including ZJ-30, ZJ-30C, ZJ-70, ZJ-70DB, ZJ-70D, ZJ40, ZJ45, ZJ50D, ZJ50D28 drilling rigs, Boiler WNS2-1.25-5Y, JC70B drawworks, EQ140 vehicles, and QB-21.80 crankshaft piston pumps. Target users include procurement managers, on-site maintenance technicians, engineering teams, and equipment operators in industries such as oil and gas drilling, thermal power generation, heavy machinery manufacturing, and industrial processing. These users consistently face frustrating challenges: unplanned equipment shutdowns due to incompatible or low-quality replacement parts, high maintenance costs from short-lived components, difficulty sourcing parts with precise specifications (e.g., IA479 eight-cylinder, MD50100THA1600-8701 power tube, ZJ-70 disc brake block BK-1-7A), and delays in fault resolution that disrupt productivity and increase operational costs. Our core purpose is to provide OEM-standard, cost-effective parts that ensure 100% compatibility with existing equipment, reduce unplanned downtime by 46% on average, cut maintenance costs by 39%, and deliver reliable performance in harsh conditions—ultimately helping users maintain smooth operations and maximize their operational efficiency.

Product Introduction

Key Product Range & Specifications

Our product line covers engine components, electrical parts, hydraulic valves, filters, brakes, seals, and more, all manufactured with strict quality control to meet industrial-grade and specialized industry standards. Key products include:

• IA479 Eight Cylinder & MD50100THA1600-8701 CRYDOM High Frequency Low Power Tube: The IA479 eight-cylinder component is designed for industrial engines, with a cylinder diameter of 95mm and stroke of 105mm, ensuring stable power output; the MD50100THA1600-8701 CRYDOM power tube has a maximum voltage of 1600V, current of 100A, and operating frequency of 50-60Hz, suitable for high-frequency industrial control systems.

• ZJ Series Drilling Rig Parts: ZJ-70 electromagnetic eddy current brake, ZJ-70DB hydraulic disc brake high pressure ball valve KHB-M36X2-1212, ZJ-70 disc brake block BK-1-7A, ZJ30 dead rope sensor diaphragm JZG20-1, ZJ30C front and rear selection valve IA-514, ZJ70D high temperature gas pipeline 106.03.289.16 (Φ16), and ZJ50D seals XJFH-5/35—all tailored for ZJ series drilling rigs, ensuring reliable braking, sensing, fluid control, and sealing performance.

• Boiler & Pump Parts: Boiler WNS2-1.25-5Y diesel filter assembly BFP 10 L13/N (filtration precision 5μm), QB-21.80 crankshaft piston pump (displacement 21.80mL/r), oil pump 4W5477, and ZCJY pump sensor NJ20U-EM30-AP6X (measurement range 0-10MPa, accuracy ±0.2% FS)—ensuring stable operation of boilers and pumps.

• Other Key Components: Air filters 3825778, 4P0711, 45 910 591 04, switching power supply JK861 (24VDC, 10A), three-position four-way manual reversing valve PD4-41-0098, main bearing 7602-0201-38, and unloading valve maintenance package 2901146300—all engineered to meet specific equipment operational requirements with strict dimensional and performance compliance.

Function Description

Core Functions of Key Products

Each product is designed to solve specific industrial challenges, with targeted functions that ensure optimal equipment performance, safety, and efficiency—simple, reliable, and built to get the job done without unnecessary complexity:

• IA479 Eight Cylinder: Provides stable power output for industrial engines, converting fuel energy into mechanical energy to drive heavy machinery and equipment, ensuring consistent performance under high-load conditions.

• MD50100THA1600-8701 CRYDOM High Frequency Low Power Tube: Controls high-frequency electrical signals in industrial control systems, ensuring stable signal transmission and switching, protecting electrical components from voltage spikes and damage.

• ZJ-70 Electromagnetic Eddy Current Brake & BK-1-7A Disc Brake Block: The electromagnetic eddy current brake controls the speed of ZJ-70 drilling rig components, while the BK-1-7A disc brake block provides strong braking force (up to 1300N·m) to stop equipment quickly, preventing load slippage and ensuring operator safety.

• Boiler WNS2-1.25-5Y Diesel Filter Assembly BFP 10 L13/N: Filters impurities (e.g., metal particles, dirt) from diesel fuel before it enters the boiler’s combustion system, preventing fuel injector clogging and ensuring complete fuel combustion, improving energy efficiency by 12%.

• QB-21.80 Crankshaft Piston Pump: Converts mechanical energy into hydraulic energy, providing stable hydraulic pressure for industrial hydraulic systems, enabling the operation of hydraulic actuators (e.g., cylinders, motors) in drilling rigs and heavy machinery.

• ZJ30 Dead Rope Sensor Diaphragm JZG20-1: Senses the tension of the dead rope in ZJ30 drilling rigs, transmitting real-time tension data to the control system to prevent rope breakage and ensure safe drilling operations.

Structural Features

Design Advantages for Durability & Compatibility

Our products are designed with practicality and durability in mind, using high-quality materials and thoughtful structural designs to ensure they fit seamlessly with your equipment and stand up to harsh industrial conditions:

• IA479 Eight Cylinder: Made of high-strength cast iron (HT300) with heat treatment (quenching and tempering), ensuring high tensile strength (≥ 300MPa) and wear resistance; the precision-machined cylinder inner surface (tolerance ≤ 0.004mm) ensures tight fit with pistons, reducing fuel consumption.

• MD50100THA1600-8701 CRYDOM Power Tube: Features a ceramic substrate with high thermal conductivity (≥ 200W/m·K), ensuring effective heat dissipation; the hermetic sealing design prevents moisture and dust from entering, extending service life to ≥ 6 years.

• ZJ-70DB High Pressure Ball Valve KHB-M36X2-1212: Constructed of stainless steel (304) with a PTFE seal, ensuring leak-proof performance (leakage ≤ 0.001L/min) under 35MPa working pressure; the quick-opening handle allows for rapid operation in emergency situations.

• BK-1-7A Disc Brake Block: Made of high-temperature resistant friction material (operating temperature up to 320°C), with a friction coefficient of 0.48-0.58, ensuring strong braking force and long service life (≥ 8500 working hours); the steel backplate provides structural stability and shock resistance.

• Air Filter 3825778 & 4P0711: Features a multi-layer filtration structure with a filtration efficiency of ≥ 99.7% for particles ≥ 3μm; the large filter area reduces pressure loss (≤ 0.025MPa), and the quick-release design allows for easy filter element replacement.

Applicable Working Conditions

All our products undergo rigorous testing to ensure they perform reliably in the harsh, complex conditions of industrial sites—no matter the environment, you can count on them to work when you need them:

• Temperature Range: -55°C to 320°C (for disc brake blocks, high-temperature pipelines, and power tubes), suitable for cold northern drilling sites, high-temperature boiler rooms, and desert oil fields.

• Pressure Range: 0-40MPa (for high pressure ball valves, piston pumps, and sensors), meeting the high-pressure requirements of oil drilling rigs, hydraulic systems, and industrial pumps.

• Environmental Resistance: IP55-IP67 protection rating (for electrical parts, sensors, and air filters), dustproof, waterproof, and anti-vibration (≤ 18g), suitable for outdoor oil drilling rigs, mining sites, and industrial workshops.

• Corrosion Resistance: 304/316L stainless steel, Viton (for O-rings 530001001090), and anti-corrosion coatings are used to resist acid, alkali, oil, and saltwater corrosion, making our parts suitable for offshore oil platforms, chemical processing facilities, and coastal industrial sites.

• Load Capacity: BK-1-7A disc brake block can provide braking force up to 1300N·m, QB-21.80 piston pump can output 21.80mL/r displacement, and main bearing 7602-0201-38 can bear radial load up to 6500N—meeting the high-load requirements of industrial equipment.

Maintenance & Care Recommendations

Taking good care of your parts is the best way to extend their service life and keep your equipment running smoothly. Below are simple, practical maintenance tips for key products, designed to be easy for on-site technicians to follow:

• IA479 Eight Cylinder: Inspect the cylinder for cracks or wear every 6 months; check the piston ring gap and replace if it exceeds 0.3mm; change the engine oil every 1500 working hours to ensure lubrication and reduce wear.

• MD50100THA1600-8701 CRYDOM Power Tube: Clean the heat sink every month to ensure effective heat dissipation; check the wiring connections for looseness or corrosion every 3 months; replace the power tube if it fails to transmit signals or overheats.

• ZJ-70 Disc Brake Block BK-1-7A: Inspect the brake block for wear every 3 months; replace it if the wear thickness exceeds 3.5mm; clean the brake disc surface to remove dust and debris, ensuring effective braking and reducing noise.

• Boiler WNS2-1.25-5Y Diesel Filter Assembly BFP 10 L13/N: Replace the filter element every 2000 working hours or 6 months (whichever comes first); clean the filter housing regularly to remove accumulated impurities; check for fuel leakage and tighten connections as needed.

• Air Filters 3825778, 4P0711, 45 910 591 04: Replace the filter element every 3 months (or when pressure difference exceeds 0.06MPa); clean the filter housing with compressed air to remove dust; ensure the filter is properly sealed after replacement.

Note: All maintenance work should be done by trained technicians following the equipment’s operation manual. Always use genuine replacement parts—non-genuine parts can cause equipment damage, safety hazards, and costly downtime.

We supply the following spare parts:

IA479eight cylinder

High frequency low power tube MD50100THA1600-8701 CRYDOM

Upper Guide Plate P/N-CS33001-0402

crankshaft piston pump QB-21.80

Weight gauge ZCJY pump sensor NJ20U-EM30-AP6X

Electromagnetic eddy current brake ZJ-70 oil drilling rig power transformer BK15-380/15V

P057086-00010Friction cylinder

Boiler WNS2-1.25-5Y diesel filter assembly BFP 10 L13/N

Dead Rope Sensor Diaphragm\ZJ30 JZG20-1

pulley shaft P2400102AA

air filter 3825778Lockup Clutch Rear Plate 23016957

switching power supply JK861

G12083U38 Throatbush

EM8032 Frame Plate

Brake device ZJ-70DB hydraulic disc brake high pressure ball valve KHB-M36X2-1212*⑴

oRing 530001001090

Dual chamber brake valve EQ140-3514E2-010

Oil Guiding Ring Assembly for DRAWWORKS Model:JC70B,P/N 401113053400;

Brake device ZJ50D28 disc brake parking handle N-30-S 9302

Transmission shift cylinder P056556-0005 13 3/8″ 8R STC MRP-1338S-P

MAIN BEARING; Part Number: 7602-0201-38

Brake device ZJ-70 disc brake block BK-1-7A

Bushing PSZ75A-2-15

Explosion-proof electric heater 330399190040000000

Eight position shift valve 8P-1S/P055556-3/IA480

Seals\ZJ50D XJFH-5/35

Three-position four-way manual reversing valve PD4-41-0098

repair kit 8T6479bolt 454815

air filter 4P0711

Hydraulic system SDZ-30-A oil suction filter WU-160*100J

Ram rubber core FZ357072

Valve top post 101-7788crankshaft front oil seal E5TZ-6700-C

cardan shaft assembly\ZJ45 W51.5×4153

screw plugNPT1 QBJ120208

Pneumatic winch rope guide YS-Ⅱ

High temperature gas pipeline\ZJ70D 106.03.289.16 Φ16

throat bushing:G8083WRT1A05,F6083WRT1A05

air filter 45 910 591 04oil pump 4W5477

Gearbox ZJ-30C transmission box oil pressure gauge sensor

UNLOADING VALVE MAINTENANCE PACHAGE 2901146300

guide ring P1100305AA

Disc brake one-way oil filling valve ZJ70D DF-M14

Brake device ZJ30C front and rear selection valve IA-514

exhaust valve 1883122 Whole vehicle thrust bearing/Whole car copper pad copper sleeve 6839818

Variable gate assembly 480642500260000000

oil seal 530214090110

Friction plate 515890

pulley P0300254AA

elastic guide sleeve ZJ40 PSZ75A-2-06.04

PINION OIL SEAL 7602-2131-18; Part Number: AH36001-0308A

On-Site Fault Maintenance Cases

Below are 3 real on-site fault cases, with simple, effective solutions to help you fix common issues quickly—minimizing downtime and saving maintenance costs:

Case 1: MD50100THA1600-8701 CRYDOM Power Tube Overheating

Fault Phenomenon: An industrial control system’s MD50100THA1600-8701 power tube overheated, causing the system to shut down intermittently. Inspection: The power tube’s heat sink was clogged with dust, and the wiring connection was loose. Solution: Clean the heat sink with compressed air, tighten the wiring connections, and check the voltage supply. Result: The power tube operated normally without overheating, and the control system ran stably for 10 months.

Case 2: ZJ-70 Disc Brake Block BK-1-7A Wear Causing Braking Failure

Fault Phenomenon: A ZJ-70 drilling rig’s disc brake system failed to stop the winch effectively, posing a safety hazard. Inspection: The BK-1-7A disc brake block was severely worn (wear thickness ≥ 4mm), reducing friction force. Solution: Replace the worn brake block with a new BK-1-7A, adjust the brake clearance, and clean the brake disc. Result: Braking performance was fully restored, the winch stopped quickly and safely, and no further safety issues occurred.

Case 3: Boiler WNS2-1.25-5Y Diesel Filter Assembly BFP 10 L13/N Clogging

Fault Phenomenon: A WNS2-1.25-5Y boiler’s diesel supply was insufficient, leading to incomplete combustion and reduced efficiency. Inspection: The BFP 10 L13/N diesel filter assembly was clogged with impurities, restricting fuel flow. Solution: Replace the filter element with a new one, clean the filter housing, and check the fuel pipeline for blockages. Result: Fuel supply was restored to normal, combustion efficiency improved by 12%, and the boiler operated stably.

FAQ (Frequently Asked Questions)

Procurement Guide & Technical Support

We are committed to providing high-quality industrial parts that meet or exceed OEM standards, with strict quality control at every stage of production. Each part undergoes three rounds of rigorous testing—raw material inspection, production process inspection, and final performance testing—to ensure a qualification rate of ≥ 99.9%. Our products are cost-effective, with prices 18-34% lower than original OEM parts, while maintaining the same level of durability, compatibility, and performance. We also provide detailed technical specifications, quality certification documents, and material test reports for all products, so you can make informed procurement decisions with confidence.

If you need to purchase any of the products mentioned (including IA479 eight cylinder, MD50100THA1600-8701 CRYDOM power tube, ZJ-70 disc brake block BK-1-7A, BFP 10 L13/N diesel filter assembly, JZG20-1 diaphragm, and other components), please provide the part number, equipment model, and required quantity. We will promptly provide you with a detailed quotation, product technical parameters, and relevant quality certifications. In addition to product supply, we offer professional technical support, including on-site fault diagnosis, maintenance guidance, and replacement part supply, to help you resolve any technical issues quickly and keep your equipment running smoothly.

Choose our industrial parts to minimize equipment downtime, reduce maintenance costs, and ensure the safe, efficient operation of your industrial equipment. We are dedicated to providing reliable products and comprehensive solutions to support your business development, and we look forward to serving your procurement and technical needs with high-quality products and professional services.

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.