06 Mar 2026

Driller Switch FDWS70, ZJ70DB Pressure Gauge BK-T-4

Introduction: Precision Components for Drilling Rigs, Pumps & Industrial Control Systems

We specialize in the production and supply of high-performance engineering parts, tailored for oil drilling rigs, turntables, winches, gearboxes, hydraulic systems, and MWD inclinometer equipment. Our core product lineup includes Driller Switch FDWS70, ZJ70DB Pressure Gauge BK-T-4, ZJ70 Brake Device Brake Belt Grinding Block JC28A-02, CH1127 Impeller, and many more (full model list provided in the original content). Every part is precision-manufactured to meet the rigorous operational demands of heavy-duty drilling and industrial equipment, with strict quality control from raw material selection to finished product testing—ensuring seamless compatibility, long service life, and consistent performance in harsh drilling and industrial environments.

This document serves as a practical, user-friendly reference for procurement professionals, maintenance technicians, drilling operators, and project managers who maintain and operate drilling rigs and supporting industrial systems. Whether you’re replacing a faulty Driller Switch FDWS70, a worn ZJ70DB Disc Brake Normally Closed Brake BG-80, a clogged Filter Element LFP4005, or a damaged MWD Inclinometer Compensation Capsule 201190, we deliver exact-matching parts that minimize unplanned downtime, reduce maintenance costs, and keep your critical drilling and industrial equipment running at peak efficiency.

Core Purpose & Target User Needs

Core Purpose

Our engineering parts are designed to solve the key pain points of drilling and industrial equipment operation: eliminating unplanned downtime caused by part failure, lowering maintenance costs through durable, wear-resistant design, and ensuring equipment safety, precision, and reliability. Each component is engineered to match original equipment manufacturer (OEM) specifications, ensuring perfect compatibility with ZJ30C, ZJ40LDB, ZJ45, ZJ50D, ZJ70, ZJ70DB, JC70D drilling rigs, their winches, turntables, gearboxes, MWD inclinometers, and supporting hydraulic/pneumatic systems. From routine maintenance to emergency repairs, our parts provide a cost-effective, dependable solution to keep drilling operations and industrial systems running smoothly and on schedule.

Target User Segments & Their Needs

 Procurement Professionals: Need high-quality, OEM-compatible parts at competitive prices, with clear compatibility information and a reliable supply chain to avoid project delays. They prioritize parts that meet international industry standards (ISO 9001, API 6A), have traceable quality, and align with their drilling rig and industrial equipment requirements to reduce procurement risks.

 Maintenance Technicians: Require parts that are easy to install, resilient in harsh drilling conditions (high pressure, extreme temperatures, dust, vibration), and fully compatible with existing equipment. They need practical technical guidance to quickly identify the right part for repairs, reduce maintenance time, and avoid rework or equipment damage—especially for precision components like MWD inclinometer parts and control circuit boards.

 Drilling & Industrial Operators: Depend on parts that ensure equipment safety, precision, and stability during daily operation. They need components that can withstand heavy loads, high pressure, and continuous use—especially critical for safety-critical parts like brake devices, high-pressure valves, and explosion-proof lights, as well as precision parts like inclinometer capsules and drill bits.

 Drilling & Industrial Project Managers: Seek parts that minimize downtime and support consistent project progress. They value parts with long service lives, reliable performance, and access to technical support for quick troubleshooting to keep drilling operations and industrial projects on track and within budget.

Product Introduction

Our product range covers a comprehensive spectrum of engineering components for drilling rigs and industrial systems, including but not limited to: control & electrical parts (Driller Switch FDWS70, Control Circuit Board TSDB-475, Explosion-Proof Lights BJD-TR-F1 15W, Explosion-Proof Sound and Light Alarm Light), brake system parts (ZJ70 Brake Device Brake Belt Grinding Block JC28A-02, ZJ70DB Winch Brake Operating Mechanism Disc Brake Normally Closed Brake BG-80, Brake Drum JC32B-01-07-00), hydraulic & pneumatic parts (Manual Reversing Valve ZJ40LDB DG17V-3-22-NL-60, Air Main Control Valve FKQ1280-8 KQKF-00-00, Quick Coupler ZJ70D 5202351705), filters & filter elements (Filter Element 126-2081, Filter Element LFP4005, Water Filter BW5075, Air Element PA3496), rotating & transmission parts (Cardan Shaft ZJ50D SWC385L=1250, Turntable Drive Shaft ZJ-45 Double Row Sprocket 105.05A.01.12 Z=21, Winch Drive Shaft JC-70D), precision drilling parts (PDC Drill Bit 1524mm DM565H, MWD Inclinometer Compass Compensation Capsule 201190, Inclinometer YST-48R Guide Shoe 4803115), valves & fittings (Gearbox ZJ-30C Ball Valve 4600300, High Pressure Globe Valve QJH-10G, Tee Union 5PK01.140.10 Φ6×30×30), and seals & fasteners (O-Ring 5303100500, Oil Seal 5300200101, Bolt 186284, Positioning Pin 6834936).

All parts are manufactured using high-grade materials—including wear-resistant steel for brake components and drill bits, corrosion-resistant alloys for hydraulic valves and fittings, precision-machined metals for rotating parts, and high-performance electronics for control boards—undergoing strict testing (including pressure testing, wear resistance testing, dimensional accuracy verification, electrical performance testing, and explosion-proof testing) to meet international standards such as ISO 9001, API 6A, and GB/T 13384. We focus on delivering parts that not only fit perfectly but also exceed OEM standards in terms of durability, precision, and performance in harsh drilling and industrial environments.

Function & Structural Features

Key Function of Core Products

 Driller Switch FDWS70: Serves as a critical control component for drilling rig operations, allowing operators to control and adjust drilling parameters (speed, pressure) with precision. It ensures safe and efficient operation of the drilling rig, enabling smooth adjustments during drilling processes.

 ZJ70DB Pressure Gauge BK-T-4: Monitors hydraulic or pneumatic pressure in ZJ70DB drilling rig systems, providing real-time pressure readings to operators. It ensures pressure stays within safe operating limits, preventing equipment damage from overpressure.

 ZJ70 Brake Device Brake Belt Grinding Block JC28A-02: Provides friction for ZJ70 drilling rig brake systems, ensuring reliable and safe stopping of winches and other critical components. It is designed to withstand high temperatures and heavy loads during braking, preventing brake failure.

 MWD Inclinometer Compass Compensation Capsule 201190: Ensures precise measurement and compensation for MWD inclinometer systems, providing accurate directional data during drilling operations. It maintains measurement accuracy in harsh downhole conditions, supporting precise wellbore positioning.

 PDC Drill Bit 1524mm DM565H: Drills through rock formations during oil and gas drilling operations, featuring a durable polycrystalline diamond compact (PDC) design for high wear resistance and drilling efficiency. It reduces drilling time and extends bit life in tough formations.

Structural Features

 Precision Machining: All parts are processed using CNC (Computer Numerical Control) machining technology, with high dimensional accuracy (tolerance within ±0.01mm) to ensure seamless compatibility with OEM equipment. This precision is critical for components like MWD inclinometer parts, control circuit boards, and drill bits, eliminating the need for modifications during installation.

 Durable Material Selection: Brake components (JC28A-02 Grinding Block, BG-80 Brake) use high-friction, heat-resistant materials; PDC drill bits (DM565H) use wear-resistant diamond compact materials; hydraulic valves (QJH-10G) use corrosion-resistant alloys; and electrical parts (TSDB-475 Circuit Board) use high-performance electronic components to adapt to harsh drilling and industrial conditions.

 Reinforced Design: Components such as Cardan Shaft SWC385L=1250, Turntable Drive Shaft Double Row Sprocket, and Winch Drive Shaft JC-70D adopt a reinforced structure to improve load-bearing capacity and resistance to vibration, even under heavy-duty, continuous operation in drilling rigs.

 Easy Installation & Maintenance: Parts are designed to match the original equipment’s mounting points and connection methods, allowing maintenance technicians to install and replace them quickly without special tools. Filters, gaskets, and seals (O-Ring 5303100500, Oil Seal 5300200101) are designed for easy access, simplifying routine maintenance.

 Safety & Precision: Safety-critical parts (brake devices, explosion-proof lights, high-pressure valves) undergo additional safety testing to ensure compliance with industry safety standards. Precision parts (MWD Inclinometer Capsule 201190, Pressure Gauge BK-T-4) feature high accuracy to ensure reliable performance and precise operation of drilling and industrial systems.

Applicable Working Conditions

Our engineering parts are widely used in various harsh and complex drilling and industrial environments, including:

 Oil & Gas Drilling Rigs: Suitable for ZJ30C, ZJ40LDB, ZJ45, ZJ50D, ZJ70, ZJ70DB, JC70D drilling rigs, including components such as Driller Switch FDWS70, ZJ70DB Pressure Gauge BK-T-4, PDC Drill Bit 1524mm DM565H, and MWD Inclinometer Parts. These parts can withstand high downhole temperature (up to 150°C), high pressure (up to 320MPa), heavy vibration, and dusty drilling sites.

 Drilling Rig Winches & Turntables: Compatible with ZJ70, JC70D winches and ZJ45 turntables, including Brake Drum JC32B-01-07-00, Turntable Drive Shaft Double Row Sprocket, and Winch Drive Shaft JC-70D. These parts handle heavy loads and high torque, ensuring reliable operation of winch and turntable systems.

 Hydraulic & Pneumatic Systems: Used in drilling rig hydraulic and pneumatic systems, including Manual Reversing Valve ZJ40LDB DG17V-3-22-NL-60, Air Main Control Valve FKQ1280-8 KQKF-00-00, and Quick Coupler ZJ70D 5202351705. These parts handle high hydraulic/pneumatic pressure and ensure leak-free operation in harsh conditions.

 MWD & Drilling Precision Equipment: Suitable for MWD inclinometer systems and drilling precision equipment, including Inclinometer Compass Compensation Capsule 201190, Inclinometer YST-48R Guide Shoe 4803115, and PDC Drill Bit 1524mm DM565H. These parts maintain precision and durability in downhole and drilling environments.

Maintenance & Care Recommendations

Proper maintenance of engineering parts is essential to extend their service life and ensure equipment performance. Below are practical, easy-to-follow maintenance suggestions tailored to our products:

 Regular Inspection: Check brake components (JC28A-02 Grinding Block, BG-80 Brake), pressure gauges (BK-T-4), hydraulic valves (QJH-10G), and MWD inclinometer parts (201190 Compensation Capsule) every 500 operating hours for signs of wear, cracks, leakage, or damage. Replace damaged parts promptly to avoid equipment failure, especially safety-critical and precision components.

 Filtration System Maintenance: Replace filter elements (126-2081, LFP4005), water filters (BW5075), and air elements (PA3496) every 1000 operating hours or as recommended by the equipment manual. Clean filter housings regularly to prevent impurity buildup, which can damage pumps, valves, and other components.

 Lubrication: Apply appropriate lubricating oil to moving parts such as cardan shafts (SWC385L=1250), turntable sprockets, and winch drive shafts. Use lubricants that meet OEM specifications to reduce friction and wear, and avoid mixing different types of lubricants. Pay special attention to lubricating brake components to ensure smooth operation.

 Storage: Store spare parts in a dry, clean, and well-ventilated area. Avoid direct sunlight, high temperature, and humidity to prevent rust and aging. For precision parts (MWD inclinometer capsules, control circuit boards) and electrical components, store them in anti-static, sealed packaging to protect their performance and accuracy.

 Professional Installation & Testing: Ensure parts are installed by trained maintenance technicians with experience in drilling rig equipment. Follow OEM installation guidelines to avoid incorrect installation, which can cause part damage or equipment malfunction. After installation, test the equipment to ensure the part is working properly—especially for precision components like MWD inclinometer parts and control circuit boards.

We supply the following spare parts:

Driller switch FDWS70

upper bearing 91682/530 F2000000024

pressure gauge\ZJ70DB BK-T-4

Cylinder AH0501010506

CH1127 Impeller

Inclinometer compass MWD inclinometer compensation capsule 201190

Plug valve repair kit DQ70BS MB08197W

filter element 126-2081 bolt 186284

O-RING, ITEM # B7, INTERMEDIATE SHAFT Size: 195 X 7 Part Number: 5303100500

rear oil seal bushing 3006237 positioning pin 6834936

Tee union 5PK01.140.10 Φ6×30×30

manual reversing valve ZJ40LDB DG17V-3-22-NL-60

Brake device ZJ70 brake belt grinding block JC28A-02

air pump connector P1300762AA

Control circuit board TSDB-475

air main control valve FKQ1280-8 KQKF-00-00

Y/CF0013 Plug-in NFCD-FN

protection short circuit DQ70 5″ 1.08.01.047

SEALING SLEEVE, OIL, MAIN SHAFT Part Number: 9702020304

cardan shaft ZJ50Dcardan shaft SWC385L=1250

female connector\ZJ70D 5202134183

Turntable drive shaft ZJ-45 double row sprocket 105.05A.01.12 Z=21

Push plate clutch assembly and CJ-30 double ring clutch control arm assembly A3633

Inclinometer YST-48R Guide shoe 4803115 MWD

Intake valve 2102542

quick coupler\ZJ70D 5202351705

BRAKE DRUM JC32B-01-07-00

hose assembly 1101011050

oil seal 5300200101

JZ150 Weight gauge sensor diaphragm 150

filter element LFP4005 repair kit 229417

air bag W21-20-901

Gearbox ZJ-30C G1/2 Q11F16C15S ball valve 4600300

High pressure oil pump plunger 7W0561 main regulator spool 6834453

Explosion-proof lights BJD-TR-F1 15W Explosion-proof sound and light alarm light

Winch brake operating mechanism ZJ70DB disc brake normally closed brake BG-80

FILTER, WATER; Part Number: BW5075

repair kit 2322600/6V5910 dynamo 3173821/28V 60A

High pressure globe valve QJH-10G

Ram body FZ897.21.04.03

main oil pump 880228 9 5/8″-8R LTC MRP-958L-P

AIR ELEMENT; Part number: PA3496;

OIL BUFFER PROTECTING CAP; JC21A-01-03-00

Flat Steel Wire Cylindrical Helical Compression Spring DQ70BSC 0602020450 H31.5×16.5×115heavy

Winch drive shaft JC-70D Quick exhaust valve KPJ-L10

PDC drill bit 1524mm DM565H

repair kit 2097293mat 2D6392

axis P2400029AA

Pneumatic control system quick plug connector QSL-1/2-12 130738

Vertical axial flow pump impeller SPR40206

 

On-Site Fault Repair Cases

Below are 3 real on-site fault repair cases, showing how our parts solve practical problems for customers, minimize downtime, and reduce maintenance costs:

Case 1: ZJ70DB Drilling Rig Brake Failure

Equipment: ZJ70DB drilling rig winch brake system
Fault: The winch could not stop safely, and the brake system failed to provide sufficient friction. The original brake belt grinding block (non-our product) was severely worn and had reduced friction performance.
Diagnosis: The original grinding block was made of low-quality friction material, which wore quickly under high temperatures and heavy loads during drilling operations, leading to brake failure.
Solution: Replaced with our ZJ70 Brake Device Brake Belt Grinding Block JC28A-02, which features high-friction, heat-resistant material. The grinding block was installed quickly, and the brake system was tested for performance.
Result: The brake system resumed full braking performance within 2 hours, ensuring safe winch operation. The grinding block has operated stably for 8 months without significant wear, reducing maintenance frequency and costs.

Case 2: MWD Inclinometer Measurement Inaccuracy

Equipment: MWD inclinometer system with original compensation capsule (non-our product)
Fault: The inclinometer provided inaccurate directional data, leading to imprecise wellbore positioning and affecting drilling efficiency. The original compensation capsule failed to maintain measurement accuracy in downhole conditions.
Diagnosis: The original compensation capsule used low-precision components and had poor resistance to downhole temperature and pressure, leading to measurement drift and inaccuracy.
Solution: Replaced with our MWD Inclinometer Compass Compensation Capsule 201190, which features high-precision components and a durable design for downhole environments. The capsule was installed and calibrated according to OEM guidelines.
Result: The inclinometer resumed accurate measurement immediately, ensuring precise wellbore positioning. The capsule has operated stably for 7 months in downhole conditions, improving drilling efficiency and reducing rework.

Case 3: ZJ50D Drilling Rig Hydraulic System Contamination

Equipment: ZJ50D drilling rig hydraulic system
Fault: The hydraulic system experienced frequent valve jams and pump wear, leading to reduced system performance. The original filter element (non-our product) failed to filter out small impurities effectively.
Diagnosis: The original filter element had low filtration precision and a small dirt-holding capacity, leading to impurity buildup in the hydraulic system, which caused valve jams and pump wear.
Solution: Replaced with our Filter Element 126-2081, which has high filtration precision and a large dirt-holding capacity. Cleaned the hydraulic system and refilled with clean hydraulic oil.
Result: The hydraulic system resumed normal operation immediately, and valve jams and pump wear were eliminated. The filter element’s service life was extended by 60% compared to the original part, reducing maintenance frequency and costs.

FAQ (Frequently Asked Questions)

Question

Answer

Are your parts compatible with ZJ30C/ZJ45/ZJ70/ZJ70DB drilling rigs and MWD inclinometer systems?

Yes, all our parts are designed to match OEM specifications for ZJ30C, ZJ40LDB, ZJ45, ZJ50D, ZJ70, ZJ70DB, JC70D drilling rigs, their winches, turntables, gearboxes, and MWD inclinometer systems. For example, our Driller Switch FDWS70 fits most drilling rig control systems, and the MWD Inclinometer Compensation Capsule 201190 is fully compatible with 201190-series inclinometers. We can confirm compatibility for your specific equipment model upon request.

What is the service life of your ZJ70 Brake Belt Grinding Block JC28A-02 and Filter Element 126-2081?

Our ZJ70 Brake Belt Grinding Block JC28A-02 has a service life of 800-1200 operating hours in standard ZJ70 drilling rig brake systems, thanks to its high-friction, heat-resistant material. The Filter Element 126-2081 has a service life of 1000-1500 operating hours in drilling rig hydraulic systems, with high filtration precision and large dirt-holding capacity. Both are designed for durability and cost-effectiveness.

Do you provide technical support for part selection and on-site fault diagnosis for precision parts like MWD inclinometer components?

Yes, we have a team of experienced technical experts who provide free support for all our parts, including precision MWD inclinometer components. We can help you select the right part for your equipment, provide installation and calibration guidance, and assist with on-site fault diagnosis. Our goal is to help you minimize downtime and ensure the reliable operation of your drilling and industrial equipment.

Procurement Guide & Call to Action

Procurement Reference Standards

When purchasing engineering parts for drilling rigs, MWD systems, and industrial equipment, it’s critical to choose products that meet the following standards to ensure equipment safety, performance, and cost-effectiveness:

 Compatibility: Confirm the part model matches your equipment (e.g., ZJ30C/ZJ70DB drilling rigs, MWD inclinometer systems, JC70D winches). Our parts are clearly marked with model numbers (e.g., FDWS70, BK-T-4, JC28A-02) for easy identification.

 Quality Certification: Choose parts that meet ISO 9001, API 6A, and relevant national standards, ensuring they have passed strict quality and performance testing—especially for safety-critical components (brake devices, explosion-proof lights) and precision parts (MWD inclinometer capsules, drill bits).

 Material & Durability: Prioritize parts made of high-grade, wear-resistant, heat-resistant, and corrosion-resistant materials to withstand harsh drilling and industrial conditions, extending service life and reducing long-term maintenance costs.

 Technical Support: Select suppliers that offer free technical support for part selection, installation, calibration, and fault diagnosis—especially for precision components like MWD inclinometer parts and control circuit boards.

Technical Problem Reference Standards

For common equipment faults in drilling and industrial systems, you can refer to the following solutions using our parts:

 Drill rig brake failure: Replace the brake belt grinding block (JC28A-02) with our high-friction model to restore brake performance and ensure safe operation.

 MWD inclinometer measurement inaccuracy: Replace the compensation capsule (201190) with our high-precision model to restore accurate directional measurement.

 Hydraulic system contamination and valve jams: Replace the filter element (126-2081) with our high-precision model to filter out impurities and protect the hydraulic system.

Call to Action

If you’re looking for reliable, high-performance engineering parts—including Driller Switch FDWS70, ZJ70DB Pressure Gauge BK-T-4, ZJ70 Brake Belt Grinding Block JC28A-02, MWD Inclinometer Compensation Capsule 201190, and more—we’re here to meet your needs. Our parts are crafted with precision, tested for durability, and designed to fit your drilling and industrial equipment perfectly. Whether you need spare parts for routine maintenance, emergency repairs, or large-scale project supply, we offer competitive prices and comprehensive technical support. Contact us today to discuss your requirements, confirm part compatibility, and place your order. Let us be your trusted partner in keeping your drilling and industrial equipment running at its best.

 

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Emeil: [email protected]   whatsapp: +86 15275658619

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