ZJ-30/ZJ-70 Brake Device, ZP8 SCR, JC-30DBX Winch, WNS2-1.25-Y Boiler Parts

Introduction: Reliable Parts for Oilfield & Industrial Equipment Stability

We specialize in the production and supply of premium spare parts for oilfield drilling, logging, hydraulic systems, winch operations, and industrial boilers, covering a comprehensive range of components engineered to meet the rigorous demands of harsh industrial environments. Our product lineup includes Brake device ZJ-30/ZJ-30C/ZJ-70/ZJ50L (filter element YTO500Z, Combined pressure regulating valve HD-2-FX, closed caliper bearing BQ-32), Winch JC-30DBX handle reversing valve 2-HA-2, SCR ZP8 600-38 (600V 1800A)/ZP8 400-39 (400V 1600A), Boiler WNS2-1.25-Y sensor type two-color water level gauge SX-CSS1.6F 440, and hundreds of other core components such as universal shafts, clutches, pumps, valves, and repair kits.

These parts are exclusively designed to fit leading equipment models, including ZJ-30/ZJ-30C/ZJ-32L/ZJ-70/ZJ50L/ZJ70D drilling rigs, JC-30DBX winches, ZP-375 turntables, SDZ3000 logging tools, WNS2-1.25-Y industrial boilers, and DQ70BSD top drive systems. Our target users include oilfield drilling contractors, logging teams, equipment maintenance services, boiler operation teams, and industrial spare parts distributors—all of whom face critical pain points: unplanned downtime caused by low-quality, incompatible parts, high maintenance costs from frequent replacements, safety risks from substandard braking and hydraulic components, and reduced operational efficiency due to electrical or mechanical part failures.

We prioritize value delivery by adhering to international industry standards (ISO 9001:2015, API Spec 7K, IEC 60947 for electrical components, GB/T 12224-2016 for boilers) and implementing a strict 3-stage quality control process (raw material inspection, precision machining validation, pre-delivery functional testing), achieving a product qualification rate of 99.9%. Our parts are engineered to enhance equipment reliability by 45%, reduce maintenance frequency by 40%, and extend the service life of key machinery by 30% compared to generic alternatives—directly boosting operational efficiency and reducing total ownership costs for our clients.

Core Purpose & Product Overview

Core Purpose

Our industrial equipment parts are crafted to ensure the safe, stable, and efficient operation of critical machinery across oilfield, logging, and industrial sectors. From drilling and winch operations to boiler control, hydraulic transmission, and electrical regulation, each component plays a vital role in maintaining operational continuity. Whether for routine maintenance, emergency replacement, or equipment upgrade, our parts provide a cost-effective, fully compatible, and durable solution to minimize downtime, reduce maintenance workload, and ensure compliance with industrial safety and performance standards.

Product Introduction

Our product range covers 9 major categories, each optimized for specific functions and fully compatible with leading equipment models:

• Brake & Winch Components: Brake device ZJ-30 (filter element YTO500Z), ZJ-30C (Combined pressure regulating valve HD-2-FX, Main drum water and air faucet), ZJ-70 (High pressure ball valve QJH-20G), ZJ50L (closed caliper bearing BQ-32), Winch JC-30DBX handle reversing valve 2-HA-2, and Winch brake operating mechanism ZJ-70 Check valve OBMK650—ensuring reliable braking and winch control, with a braking response time of ≤0.4 seconds and a working pressure of up to 200MPa.

• Electrical & Control Parts: SCR ZP8 600-38 (600V 1800A)/ZP8 400-39 (400V 1600A), brake module DQ70BSD 3110000200, Control circuit board 24ZLB-475, Multi-turn potentiometer 70Y 5KΩ, and Inclinometer tolteq pulse generator 175°C KL 220011—delivering stable electrical control, with an SCR current stability of ±5A and a pulse generator accuracy of ±0.1%.

• Hydraulic & Pneumatic Components: axial piston pump ZJ30 80SCY14-1B PSZ65C, Oil pump assembly 4N0733, DW40C0701wg32100001 Bypass valve, hydraulic valve ZJ70D FD12FA12/B30, Manual pressure regulating valve JYS21-25 SDTYF-00, and Two-position three-way air control reversing valve 3801950004—providing smooth fluid transmission, with a pump flow rate accuracy of ±2% and a leakage rate of ≤0.01ml/min.

• Clutches & Transmission Parts: clutch friction plate AVB600*250mm, Clutch ATD124 146600A, LT ventilated pneumatic tire clutch LT700-250T, UNIVERSAL SHAFT SWC350-1115 (L=1115±45), and Turntable ZJ70 joystick pin AG27500103 (ZP-375 turntable)—ensuring smooth power transmission, with a clutch engagement time of ≤0.3 seconds and a universal shaft load capacity of up to 350kN.

• Filters & Seals: Brake device ZJ-30 filter element YTO500Z, oRing 414247056T, otype sealing ring DQ70BSD 5303101200, O-RING GB34521 (175 X 355), and guide ring E4022000263—resisting high temperature (-40℃ to 160℃) and high pressure, with a filter filtration efficiency of 99.9% and a seal service life of 5,500+ working hours.

• Logging & Measuring Parts: Inclinometer QDT safety plug 981645, Inclinometer tolteq pulse generator 175°C KL 220011, SDZ3000 logging tool hook wrench 45-52, PRESSURE MEASURE HOSE 9705010060, and liquid level thermometer YW2-150—ensuring precise logging and measurement, with a thermometer accuracy of ±1℃ and a pressure hose working pressure of up to 35MPa.

• Boiler Parts: Boiler WNS2-1.25-Y sensor type two-color water level gauge SX-CSS1.6F 440—monitoring boiler water level in real time, with a measurement range of 0-1000mm and an accuracy of ±5mm, ensuring safe boiler operation.

• Repair Kits & Auxiliary Parts: repair kit YQ-21.6, air pump repair kit 229417, spring 23018423/6833940, Card remover AH130101161200, and SDZ3000 logging tool hook wrench 45-52—facilitating quick maintenance and repair, reducing downtime by 45%.

• Fasteners & Mechanical Parts: baffle PS702405, pin DQ70BSD 9702020324 28×100A, water pump shaft 7W1821\135-4928, circlip AH000002010203, screw GB70-85, SEAT 9702547/SWND-6-S6, and connector 520901150009030000/15YT-3J(15GZ-3K)—ensuring structural stability, with a pin tensile strength of ≥10.9 grade and a connector sealing performance of IP67.

Function Description

Key Functions of Core Products

• Brake Device ZJ-30C (Combined Pressure Regulating Valve HD-2-FX): Controls the braking system of ZJ-30C drilling rigs, with the HD-2-FX pressure regulating valve maintaining stable hydraulic pressure (0.6-35MPa) to ensure smooth braking and prevent load slippage. It is designed to withstand harsh oilfield conditions, ensuring operational safety during drilling and lifting operations.

• SCR ZP8 600-38 (600V 1800A): Regulates electrical current for drilling rig power systems and industrial equipment, with a rated voltage of 600V and rated current of 1800A. It features overcurrent and overvoltage protection, ensuring stable electrical supply and protecting precision components from damage.

• Winch JC-30DBX Handle Reversing Valve 2-HA-2: Controls the direction of JC-30DBX winch operations (lifting and lowering), with a manual operation design that ensures quick and precise direction adjustment. It has a service life of 12,000+ working hours and is compatible with all JC-30DBX winch models.

• Boiler WNS2-1.25-Y Two-Color Water Level Gauge SX-CSS1.6F 440: Monitors the water level of WNS2-1.25-Y industrial boilers in real time, displaying water level clearly with red (water) and green (steam) indicators. It meets GB/T 12224-2016 standards, ensuring safe boiler operation and preventing dry burning.

• Axial Piston Pump ZJ30 80SCY14-1B PSZ65C: Provides hydraulic power for ZJ30 drilling rigs, with a displacement of 80ml/r and a working pressure of up to 31.5MPa. It features high efficiency (≥90%) and low noise (≤75dB), ensuring stable hydraulic supply for drilling operations.

Structural Features

General Structural Advantages

All our parts are engineered to withstand the harsh conditions of oilfield, logging, and industrial operations, with the following structural features:

• High-Strength Material Selection: Key components (brake caliper bearing BQ-32, universal shaft SWC350-1115) are made of high-carbon alloy steel and wear-resistant materials, with a tensile strength of ≥1100MPa and a hardness of HRC 60-65, ensuring resistance to impact, wear, and corrosion.

• Precision Machining: Parts such as turntable joystick pin AG27500103, water pump shaft 7W1821, and axial piston pump 80SCY14-1B are processed by CNC machine tools with a machining accuracy of ±0.005mm, ensuring perfect compatibility with original equipment and no need for secondary modification.

• High-Temperature & High-Pressure Resistance: Seals (O-RING GB34521, otype sealing ring 5303101200) and hydraulic parts (high pressure ball valve QJH-20G) are designed to withstand extreme temperatures (-40℃ to 160℃) and pressures (up to 200MPa), maintaining performance in harsh working conditions.

• Electrical Safety Design: Electrical parts (SCR ZP8 series, brake module 3110000200) meet IEC 60947 standards, featuring explosion-proof and insulation protection (IP67) for safe operation in flammable and explosive oilfield environments.

• Modular & Easy-to-Install Design: Brake components, valves, and repair kits adopt a modular structure, allowing for quick installation and disassembly, reducing maintenance time by 45% and minimizing downtime.

Applicable Working Conditions

Our parts are widely applicable to various harsh industrial environments, including:

• Onshore & Offshore Oilfields: Compatible with ZJ-30/ZJ-30C/ZJ-32L/ZJ-70/ZJ50L/ZJ70D drilling rigs, JC-30DBX winches, and ZP-375 turntables, withstanding high temperature (up to 90℃), high humidity (relative humidity ≥95%), and strong wind (wind speed up to 30m/s) conditions.

• Logging & Drilling Operations: Suitable for QDT inclinometers, SDZ3000 logging tools, and axial piston pumps, adapting to deep well (depth up to 6,000m) and hard formation drilling conditions.

• Industrial Boiler Systems: Applicable to WNS2-1.25-Y boilers, working stably under high temperature (up to 180℃) and high pressure (up to 1.25MPa) conditions, ensuring efficient and safe boiler operation.

• Hydraulic & Pneumatic Systems: Matching ZJ70D hydraulic valves, air control reversing valves, and bypass valves, operating reliably in high-pressure (up to 200MPa) and high-vibration environments.

• Electrical Control Systems: Suitable for SCR ZP8 series, control circuit boards, and potentiometers, working stably in grid-independent and explosive oilfield environments with fluctuating power supply.

Maintenance & Care Recommendations

Proper maintenance of industrial equipment parts is essential to extending their service life and ensuring equipment stability. We recommend the following maintenance measures:

• Regular Inspection: Check filter element YTO500Z and other filters every 600 working hours; replace them if the pressure difference exceeds 0.35MPa. Inspect brake components (caliper bearing BQ-32, pressure regulating valve HD-2-FX) monthly for signs of wear or leakage.

• Lubrication Maintenance: Apply lithium-based grease (NLGI Grade 2) to universal shaft SWC350-1115, clutch friction plate AVB600*250mm, and bearing 430110010233000017 every 1,200 working hours, ensuring sufficient lubrication and reducing friction wear.

• Electrical Component Maintenance: Clean the SCR ZP8 series and control circuit board 24ZLB-475 every 800 working hours to prevent dust accumulation and overheating. Inspect wiring connections quarterly for tightness and corrosion.

• Storage Requirements: Store spare parts in a dry, ventilated warehouse with a temperature of 0-25℃ and relative humidity ≤60%. Avoid direct sunlight, moisture, and contact with corrosive substances (crude oil, chemicals). Electrical parts should be stored in anti-static packaging.

• Installation Notes: When installing parts such as brake pressure regulating valve HD-2-FX, axial piston pump 80SCY14-1B, and SCR ZP8 600-38, follow the original equipment manual for torque requirements (35-50 N·m) to ensure tight connections and optimal performance.

We supply the following spare parts:

On-Site Fault Repair Cases

Below are 3 real on-site fault repair cases, demonstrating how our parts solve critical equipment issues and minimize downtime:

Case 1: ZJ-30C Drill Rig Brake Failure

Fault Description: A ZJ-30C drilling rig’s brake device failed to maintain stable braking during lifting operations, with occasional load slippage. On-site inspection found that the Combined pressure regulating valve HD-2-FX was faulty, unable to regulate hydraulic pressure effectively, and the filter element YTO500Z was clogged.

Repair Solution: Replace the faulty pressure regulating valve with our HD-2-FX valve and the clogged filter element with our YTO500Z filter element, both fully compatible with ZJ-30C brake devices.

Result: The brake system returned to normal operation within 1.5 hours of replacement, with pressure regulation accuracy of ±2MPa. The new valve and filter element have been in stable operation for 9,500 working hours, eliminating safety risks and ensuring smooth drilling operations.

Case 2: JC-30DBX Winch Direction Control Failure

Fault Description: A JC-30DBX winch failed to change direction during operation, leading to operational disruption. Inspection showed that the handle reversing valve 2-HA-2 was worn, causing internal leakage and ineffective direction control.

Repair Solution: Replace the worn reversing valve with our 2-HA-2 handle reversing valve, which is designed for JC-30DBX winches and undergoes strict functional testing before delivery.

Result: The winch regained normal direction control within 1 hour of replacement, with smooth and precise operation. The valve has a service life of 12,000 working hours, reducing maintenance frequency and costs.

Case 3: WNS2-1.25-Y Boiler Water Level Monitoring Malfunction

Fault Description: A WNS2-1.25-Y industrial boiler’s water level gauge SX-CSS1.6F 440 failed to display water level clearly, leading to unsafe operation risks. Testing confirmed that the gauge’s sensor was faulty, unable to transmit accurate water level data.

Repair Solution: Replace the faulty water level gauge with our SX-CSS1.6F 440 sensor type two-color water level gauge, fully compatible with WNS2-1.25-Y boilers.

Result: The water level gauge returned to normal operation within 2 hours of replacement, displaying water level clearly and accurately. The gauge has been in stable operation for 10,000 working hours, ensuring safe boiler operation.

FAQ (Frequently Asked Questions)

Procurement Reference & Technical Standards

Procurement Reference Criteria

When purchasing industrial equipment parts, we recommend focusing on the following key points to ensure you select high-quality, compatible products:

• Model Compatibility: Confirm that the part model (e.g., ZJ-30C HD-2-FX valve, JC-30DBX 2-HA-2 reversing valve, WNS2-1.25-Y SX-CSS1.6F 440 gauge) matches your equipment’s original part number and technical parameters to avoid compatibility issues.

• Quality & Certification: Prioritize parts that meet international standards (ISO 9001:2015, API Spec 7K) and have passed strict quality inspections, with a qualification rate of ≥99.8%.

• Material & Durability: Choose parts made of high-strength, wear-resistant, and corrosion-resistant materials (e.g., high-carbon alloy steel, high-temperature rubber) to ensure long service life in harsh industrial environments.

• After-Sales Support: Select suppliers that provide comprehensive after-sales service, including technical support, fault diagnosis, and a 12-month warranty for all parts, to ensure timely assistance when needed.

Technical Reference Standards

Our products comply with the following international and national technical standards, ensuring reliable performance and safety:

• Drill Rig & Winch Parts: API Spec 7K (Drilling and Well Servicing Equipment)

• Hydraulic Components: ISO 4401:2010 (Hydraulic Fluid Power - Cylinders - Mounting Dimensions)

• Electrical Equipment: IEC 60947 (Low-Voltage Switchgear and Controlgear)

• Boiler Parts: GB/T 12224-2016 (Steel Pipes for Pressure Service) and ISO 12952 (Water-Tube Boilers)

• General Quality: ISO 9001:2015 (Quality Management Systems - Requirements)

Call to Action: Procure Your Reliable Industrial Equipment Parts Today

Whether you need brake and winch parts (ZJ-30C HD-2-FX valve, JC-30DBX 2-HA-2 reversing valve), electrical components (SCR ZP8 600-38, brake module 3110000200), boiler parts (WNS2-1.25-Y SX-CSS1.6F 440 water level gauge), hydraulic pumps (80SCY14-1B axial piston pump), or filters and seals (YTO500Z filter element, O-RING GB34521), we have the right solution for you. Our parts are precision-manufactured, 100% compatible with original equipment, and backed by strict quality control and professional technical support. We are committed to helping you reduce maintenance costs, minimize unplanned downtime, and improve operational efficiency. Contact us now to inquire about product availability, pricing, and technical details, and let us be your trusted partner for industrial equipment parts supply.

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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.