2903752600 Air Compressor Oil Filter, ZJ30C, ZJ50, ZJ70 & WNS1.0-1.25-Y for Stable Operation

Introduction

We focus on the production and supply of high-performance industrial equipment parts, covering core components for air compressors, drilling rigs, mud pumps, boilers, pneumatic winches, and industrial instruments. Our product portfolio includes key models such as OIL FILTER FOR AIR COMPRESSOR 2903752600, Pneumatic winch air distribution valve assembly QJ-5, R431006031/P62255-0/6P-2S Rexroth valve, ZJ30C lifting hydraulic device telescopic oil cylinder repair kit E7023000002, WNS1.0-1.25-Y boiler sensor type two-color water level gauge SX-CSS1.6F, and more than 50 types of standard and customized parts for industrial equipment.

Our target users are professional procurement personnel, equipment maintenance teams, and technical engineers in industries such as oil and gas drilling, thermal power generation, mining, and industrial manufacturing. We deeply understand the core pain points of users: equipment downtime caused by low-quality parts, high maintenance costs due to short service life, difficult replacement due to poor compatibility, and production losses caused by inaccurate instrument data or unstable valve operation. With "value first, scenario adaptation" as the core, we provide users with OEM-compatible, durable, and high-precision parts solutions, helping users reduce maintenance costs, extend equipment service life, and ensure continuous, safe, and efficient production operations.

Product Overview

Core Purpose

Our industrial equipment parts are designed to meet the functional needs of different industrial equipment, covering key links such as filtration, control, transmission, sealing, sensing, and maintenance. Their core purposes are as follows: ① Filtration and purification (e.g., Air Compressor Oil Filter 2903752600, Filter Element 1R0771, Air Filter 6I2509) to remove impurities from oil, air, and fluids, protecting the internal components of equipment; ② Hydraulic and pneumatic control (e.g., ZJ30C Telescopic Oil Cylinder Repair Kit E7023000002, Pneumatic Winch Air Distribution Valve Assembly QJ-5, R431006031 Rexroth Valve, ZJ50 Valve Island CPV-18-V1) to maintain stable operation of hydraulic and pneumatic systems; ③ Instrumentation and sensing (e.g., JZ-400 Type Weight Table, WNS1.0-1.25-Y Boiler Two-Color Water Level Gauge SX-CSS1.6F, WNS2-1.25-5Y Boiler Liquid Level Switch 61F-G1 FLOATLES) to monitor equipment operation data and ensure safe operation; ④ Transmission and braking (e.g., ZJ50 Brake Operating Mechanism PS C75BTK01, Working Tongs Cylinder Assembly DBS75-3-02.0) to realize stable power transmission and safe braking of equipment; ⑤ Sealing and protection (e.g., O-Type Sealing Ring 5300100252, Gland Assembly D044HS1C21, Sealing Bead 5304010180) to prevent fluid leakage and protect key components.

Key Product Categories & Matching Equipment

Our products are strictly matched with mainstream industrial equipment models, with clear classification and strong compatibility. The core categories and matching equipment are as follows:

• Air Compressor Parts: 2903752600 Oil Filter, 6I2509 Air Filter, 1R0771 Filter Element — suitable for various industrial air compressors, used for oil and air purification.

• Drilling Rig Parts: ZJ30C Telescopic Oil Cylinder Repair Kit E7023000002, ZJ50 Valve Island CPV-18-V1, ZJ50 Brake Operating Mechanism PS C75BTK01, ZJ70 Front Box Countersunk Head Screw M24*78/106.06.10.14, DQ70BSD Tooth Board 9703641019 — applicable to ZJ30C, ZJ50, ZJ70 drilling rigs.

• Boiler Parts: WNS1.0-1.25-Y Sensor Type Two-Color Water Level Gauge SX-CSS1.6F, WNS1-1.25 Pressure Sensor QRB1 36216007, WNS2-1.25-5Y Liquid Level Switch 61F-G1 FLOATLES, KDB-250FA Boiler Muffler XK-89 — used for WNS series industrial boilers.

• Hydraulic & Pneumatic Parts: R431006031/P62255-0/6P-2S Rexroth Valve, QJ-5 Pneumatic Winch Air Distribution Valve Assembly, DBS75-3-02.0 Working Tongs Cylinder Assembly, 229859/IA112 Quick Release Valve — used for hydraulic and pneumatic systems of various industrial equipment.

• Instrumentation & Sensing Parts: JZ-400 Type Weight Table, CPS-KQ-VI Mud Logging Instrument Liquid Level Sensor SK-8C06AG, ABL 2REM24045 24V Instrument Dedicated Power Supply, 86L3-220V-45HZ-55HZ AC and DC Frequency Meter — used for equipment operation monitoring and data collection.

• Sealing & Fastening Parts: 5300100252 O-Type Sealing Ring, D044HS1C21 Gland Assembly, 5304010180 Sealing Bead, CS33001-0217 MAIN BEARING BOLTS — used for component sealing and fixing.

Function Description

Core Functions

Each part is independently designed to undertake specific functions, and the overall coordination ensures the stable and efficient operation of the entire equipment. The core functions are as follows:

1. Filtration Function: The 2903752600 air compressor oil filter filters impurities in the compressor oil, preventing wear of internal components; the 6I2509 air filter removes dust and particles from the air, ensuring the cleanliness of the air entering the equipment; the 1R0771 filter element purifies the fluid in the system, avoiding blockage of valves and pipelines.

2. Hydraulic & Pneumatic Control Function: The ZJ30C E7023000002 telescopic oil cylinder repair kit restores the normal operation of the lifting hydraulic device; the QJ-5 pneumatic winch air distribution valve assembly controls the air flow of the winch, realizing the lifting and lowering of the winch; the R431006031 Rexroth valve adjusts the pressure and flow of the hydraulic system, ensuring stable system operation.

3. Instrumentation & Sensing Function: The WNS1.0-1.25-Y SX-CSS1.6F two-color water level gauge displays the boiler water level in real time, avoiding dry burning; the JZ-400 type weight table accurately measures the weight of materials, providing data support for production; the SK-8C06AG liquid level sensor monitors the liquid level of the mud logging instrument, ensuring the normal operation of the instrument.

4. Transmission & Braking Function: The ZJ50 PS C75BTK01 brake operating mechanism controls the braking of the drilling rig, ensuring operational safety; the DBS75-3-02.0 working tongs cylinder assembly drives the working tongs to clamp and loosen, realizing the operation of the drilling rig.

5. Sealing & Fastening Function: The 5300100252 o-type sealing ring seals the gap between components, preventing fluid leakage; the D044HS1C21 gland assembly compresses the sealing element, enhancing the sealing effect; the CS33001-0217 main bearing bolts fix the main bearing, ensuring stable transmission of the equipment.

Structural Features

Overall Structural Advantages

Our parts adopt a "precision machining + high-quality material + standardized design" structure, which is in line with international industrial standards (ISO 9001 quality management system, API 6A drilling equipment standard, GB/T 12224 boiler safety standard), and has the following structural advantages:

• Precision Machining Structure: All parts are processed by CNC precision machining, with dimensional tolerance controlled within ±0.01mm, ensuring perfect matching with original equipment (OEM compatibility). For example, the ZJ70 M24*78 countersunk head screw adopts precision thread processing, with uniform thread pitch and strong fastening performance, avoiding loosening during equipment operation.

• High-Strength Material Selection: According to the working conditions of different parts, we select high-quality materials such as high-strength alloy steel, nitrile rubber, and high-efficiency filter paper. For example, the 2903752600 air compressor oil filter uses high-efficiency filter paper, which has strong filtration capacity and large dirt-holding capacity; the DBS75-3-02.0 working tongs cylinder assembly adopts high-strength alloy steel, which can withstand high pressure and impact without deformation.

• Sealing & Anti-Wear Structure: Key sealing parts (such as o-type sealing rings, gland assemblies) adopt multi-layer sealing design, which enhances the sealing effect and adapts to high-pressure and high-temperature working conditions; wear parts (such as bearing 4W5492, piston rod AH130101051600B1) are designed with wear-resistant layers, extending service life.

• Easy Installation & Replacement Structure: All parts adopt standardized installation interfaces, consistent with industry standards, which can be directly installed and replaced without modifying the original equipment. For example, the 1R0771 filter element adopts a plug-and-play design, which is convenient for on-site maintenance and replacement; the QJ-5 pneumatic winch air distribution valve assembly has a clear installation position, reducing installation time.

Applicable Working Conditions

Our parts are designed to adapt to various harsh industrial working conditions, with strong environmental adaptability, and can stably operate in the following scenarios:

1. Air Compressor Operation Scenarios

Applicable equipment: various industrial air compressors. Key parts: 2903752600 oil filter, 6I2509 air filter, 1R0771 filter element. Adapt to high temperature (0~100℃), high pressure (0~1.6MPa), and dusty environments, ensuring the stable operation of the air compressor and extending the service life of the compressor.

2. Oil Drilling Working Conditions

Applicable equipment: ZJ30C, ZJ50, ZJ70 drilling rigs. Key parts: ZJ30C E7023000002 telescopic oil cylinder repair kit, ZJ50 CPV-18-V1 valve island, ZJ50 PS C75BTK01 brake operating mechanism, DBS75-3-02.0 working tongs cylinder assembly. Adapt to outdoor harsh environments such as high temperature, low temperature (-20℃~80℃), dust, vibration, and high pressure, ensuring the continuous operation of drilling rigs.

3. Boiler Operation Scenarios

Applicable equipment: WNS1.0-1.25-Y, WNS1-1.25, WNS2-1.25-5Y, KDB-250FA industrial boilers. Key parts: SX-CSS1.6F two-color water level gauge, QRB1 36216007 pressure sensor, 61F-G1 FLOATLES liquid level switch, XK-89 muffler. Adapt to high temperature, high pressure (1.25MPa), and high-humidity environments, ensuring safe and stable operation of the boiler.

4. Industrial Production & Maintenance Scenarios

Applicable to the daily operation and maintenance of various industrial equipment. Key parts: 5300100252 o-type sealing ring, CS33001-0217 main bearing bolts, AH130101051600B1 piston rod, B600-32010003A discharge plug assembly. Provide fast and reliable replacement parts to reduce equipment downtime and maintenance costs.

Maintenance & Care Suggestions

To extend the service life of the parts and ensure the stable operation of the equipment, we provide professional maintenance and care suggestions in line with industrial maintenance standards (ISO 14001 environmental management system, API 7K drilling equipment maintenance standard):

1. Regular Inspection: Check the parts every 450 working hours, focusing on the wear, looseness, and leakage of key parts. For example, check the filtration effect of the 2903752600 air compressor oil filter and the sealing performance of the 5300100252 o-type sealing ring; if any damage or abnormality is found, replace them in time.

2. Lubrication Maintenance: For transmission parts such as 4W5492 main bearing and AH130101051600B1 piston rod, apply industrial lubricating oil (recommended model: 46# anti-wear hydraulic oil) every 900 working hours to reduce friction; avoid mixing different types of lubricating oil.

3. Cleaning Maintenance: Regularly clean the surface of the parts to remove dust, oil, and other pollutants. For example, clean the 6I2509 air filter every 2 months to avoid blockage and affect the air intake of the air compressor; clean the SX-CSS1.6F two-color water level gauge regularly to ensure clear water level display.

4. Storage Requirements: Unused parts should be stored in a dry, ventilated, and dust-free warehouse, avoiding direct sunlight and moisture. For example, the ABL 2REM24045 24V instrument dedicated power supply should be stored in a dry environment to avoid circuit damage; the 5300100252 o-type sealing ring should be stored in a cool place to avoid aging.

5. Replacement Standard: When the wear of the parts exceeds the allowable range (e.g., the filtration efficiency of the 2903752600 oil filter is less than 95%, the thickness of the AH130101051600B1 piston rod wear exceeds 0.03mm), it should be replaced in time to avoid equipment failure caused by part damage.

We supply the following spare parts:

On-Site Fault Maintenance Cases

The following are 3 real on-site fault maintenance cases, which can provide reference for users to solve similar technical problems and reflect the reliability and applicability of our parts:

Case 1: Air Compressor Overheating Fault

Fault Phenomenon: An industrial air compressor had serious overheating during operation, and the machine automatically shut down, affecting production. Fault Analysis: After inspection, the 2903752600 oil filter (original part) was blocked by impurities, leading to poor oil circulation and insufficient heat dissipation. Solution: Replace the original oil filter with our 2903752600 air compressor oil filter (high-efficiency filter paper, large dirt-holding capacity). Maintenance Effect: After replacement, the oil circulation of the air compressor returned to normal, the overheating phenomenon was eliminated, and the machine operated stably for 3 months without shutdown.

Case 2: ZJ30C Drilling Rig Lifting Failure

Fault Phenomenon: A ZJ30C drilling rig lifting hydraulic device failed to lift normally, and the telescopic oil cylinder could not extend. Fault Analysis: The telescopic oil cylinder of the lifting hydraulic device was worn and leaked, and the original repair kit could not restore its performance. Solution: Use our ZJ30C E7023000002 telescopic oil cylinder repair kit to repair the oil cylinder. Maintenance Effect: After repair, the telescopic oil cylinder operated normally, the lifting function of the drilling rig was restored, and the oil cylinder had no leakage after 1 month of continuous operation.

Case 3: WNS1.0-1.25-Y Boiler Water Level Display Fault

Fault Phenomenon: A WNS1.0-1.25-Y boiler two-color water level gauge (original part) displayed inaccurately, and the water level could not be clearly observed, posing a safety hazard. Fault Analysis: The original water level gauge sensor was aging, leading to inaccurate data transmission. Solution: Replace the original water level gauge with our WNS1.0-1.25-Y SX-CSS1.6F sensor type two-color water level gauge (high-precision sensor, clear display). Maintenance Effect: After replacement, the water level display was accurate and clear, ensuring the safe operation of the boiler, and no display failure occurred after 2 months of use.

FAQ (Frequently Asked Questions)

Procurement Guide & Technical Support

Procurement Reference Standards

When purchasing our industrial equipment parts, you can refer to the following standards to ensure that you buy high-quality and suitable products:

• Dimensional Standard: Check whether the part dimensions are consistent with the original equipment requirements (we provide detailed dimensional parameters for each product).

• Material Standard: Confirm that the part material meets the working condition requirements (e.g., high-pressure hydraulic parts need to use high-strength alloy steel, high-temperature boiler parts need to use heat-resistant materials, filter parts need to use high-efficiency filter materials).

• Quality Standard: All our parts pass strict quality inspection, with ISO 9001 quality certification, API 6A certification (for drilling parts), and GB/T 12224 certification (for boiler parts), and quality inspection reports are available on request.

• Compatibility Standard: Confirm that the part model matches the equipment model (we provide professional model matching services to avoid mismatches and installation difficulties).

Technical Problem Solution Reference

If you encounter technical problems such as part installation, fault diagnosis, and maintenance during use, we provide the following support:

• Provide detailed installation instructions and maintenance manuals for each product, guiding you to complete installation and maintenance correctly.

• Our professional technical team provides online consultation services to answer your technical questions in a timely manner and provide fault diagnosis and solution suggestions.

• Provide on-site technical support for large-scale equipment and key projects (as required) to help you solve complex technical problems and ensure the smooth operation of equipment.

Call for Procurement

We are committed to providing high-quality, durable, and cost-effective industrial equipment parts for global industrial users. Our product range covers core models such as 2903752600 air compressor oil filter, ZJ30C E7023000002 repair kit, WNS1.0-1.25-Y SX-CSS1.6F water level gauge, R431006031 Rexroth valve, and ZJ50 CPV-18-V1 valve island, which can meet the diverse needs of air compressors, drilling rigs, boilers, and other industrial equipment. Whether you need standard parts for daily maintenance or customized parts for special equipment, we can provide you with one-stop solutions. Choosing our parts can help you reduce maintenance costs, extend equipment service life, and ensure the smooth progress of your production. Contact us now to discuss your procurement needs and get professional product advice and quotation.

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.