FKQ3204-HBD40, ZJ30C, ZJ45, Rexroth 7500248-0004 H-3

Introduction

We specialize in the production and supply of high-precision mechanical parts, covering core components for drilling rigs, construction machinery, industrial compressors, boilers, and hydraulic systems. Our product portfolio includes guard plate FKQ3204-HBD40 switch guard, airway connector R2-M63*3G, cylinder 5400600002, anti-lift safety device button valve FKQ1280-8 DS-ANNF(II)-01-00, air compressor TU-FL0 1000, whole vehicle thrust bearing/whole car copper pad copper sleeve 6839821, gear hub W24-01-307, turntable drive shaft ZJ30 CDZ150 L=500±60, crane ZJ-45 outer ring gear Z=44 106.02.30.09, Rexroth air control valve 7500248-0004 H-3, and more than 50 types of standard and customized parts.

Targeted at professional users in oil drilling, construction engineering, industrial manufacturing, and equipment maintenance, we focus on solving pain points such as unstable operation of equipment parts, short service life, poor compatibility, and difficult maintenance. Our products adhere to strict industrial standards, with precise dimensional control, high material durability, and perfect matching with original equipment (OEM standards). We take "value first, scenario-oriented" as the core, providing users with reliable parts solutions that reduce maintenance costs, extend equipment service life, and ensure continuous operation of production.

Product Overview

Core Purpose

Our mechanical parts are designed to meet the high-performance operation needs of industrial equipment, covering key functional modules such as protection, transmission, control, lubrication, and sealing. Specifically, they are used for: ① Protection of key components (e.g., FKQ3204-HBD40 switch guard, Fan guard 7C1003) to prevent damage from external dust, impact, and wear; ② Power transmission and motion control (e.g., gear hub W24-01-307, turntable drive shaft ZJ30 CDZ150 L=500±60, one-way clutch ZJ-40) to ensure stable power output and precise motion adjustment; ③ Safety control (e.g., anti-lift safety device button valve FKQ1280-8 DS-ANNF(II)-01-00, pressure relief valve inlet valve seat Y02-17 Φ68×38) to avoid equipment failure and safety accidents; ④ Fluid and air control (e.g., airway connector R2-M63*3G, gas water release valve B17.63.42, two position three way valve IA-191/2-HA-1/P59331) to maintain stable fluid and air circulation; ⑤ Wear resistance and lubrication (e.g., whole car copper pad copper sleeve 6839821, ceramic cylinder liner Y001-100140, oRing 530301011850070001) to reduce friction and extend equipment service life.

Key Product Categories & Models

Our product line covers a full range of mechanical parts for multiple types of equipment, with core models including but not limited to:

• Protection Parts: FKQ3204-HBD40 switch guard, Fan guard 7C1003

• Transmission Parts: gear hub W24-01-307, left detent AG275001-01, turntable drive shaft ZJ30 CDZ150 L=500±60, crane ZJ-45 outer ring gear Z=44 106.02.30.09, angle gearbox pinion P3300002AA

• Hydraulic & Pneumatic Parts: cylinder 5400600002, lifting hydraulic device ZJ30C, lifting tong cylinder repair kit E6121000000, throttle cylinder P60266-3AB-1, balance cylinder shackle DQ70BSC 9702050900, pneumatic oil pump QYB40-165L

• Safety & Control Valves: anti-lift safety device button valve FKQ1280-8 DS-ANNF(II)-01-00, pressure relief valve inlet valve seat Y02-17 Φ68×38, two position three way valve IA-191/2-HA-1/P59331, valve terminal CPV18VI, shuttle valve 512704110400100302, quick exhaust valve 512704070200081020

• Wear & Sealing Parts: whole vehicle thrust bearing/whole car copper pad copper sleeve 6839821, copper pad T001-1702, small wear ring P1100338AA, oRing 530301011850070001

• Compressors & Pumps: air compressor TU-FL0 1000, boiler feed water pump 3PHASE 2800r/min, denison double vane pump T6DDS-045-042-3R03-A1-00

• Electrical & Other Parts: high voltage electrical equipment RPM 2400, SCR room cooling fan 600V 60Hz, inclinometer QMWD, inclinometer compass MWD servo valve water eye 201392

Function Description

Core Functions

Each of our mechanical parts is independently designed to meet specific functional needs, and the overall functions are integrated to ensure the stable and efficient operation of the entire equipment system:

1. Protection Function: The guard plate (FKQ3204-HBD40) and fan guard (7C1003) form a protective barrier to isolate key components from external pollutants, mechanical impact, and human operation risks, avoiding component damage and extending service life.

2. Transmission Function: Gear hubs (W24-01-307), turntable drive shafts (ZJ30 CDZ150 L=500±60), and one-way clutches (ZJ-40) realize power transmission and speed regulation, ensuring that the equipment can complete precise motion actions such as rotation, lifting, and propulsion.

3. Safety Control Function: Anti-lift safety device button valves (FKQ1280-8 DS-ANNF(II)-01-00) and pressure relief valve inlet valve seats (Y02-17 Φ68×38) monitor and adjust the operating pressure and position of the equipment in real time, automatically triggering protection mechanisms when abnormalities occur to prevent safety accidents.

4. Fluid Control Function: Airway connectors (R2-M63*3G), gas water release valves (B17.63.42), and two-position three-way valves (IA-191/2-HA-1/P59331) ensure the stable circulation of gas and fluid in the system, adjust flow and pressure, and avoid system blockage or leakage.

5. Wear Resistance & Sealing Function: Copper pads (T001-1702), ceramic cylinder liners (Y001-100140), and o-rings (530301011850070001) reduce friction between components, enhance sealing performance, and prevent fluid leakage and component wear.

Structural Features

Overall Structural Advantages

Our mechanical parts adopt a "precision design + high-quality material" structure, combining structural rationality and durability to meet the harsh operating environment of industrial equipment:

• Precision Machining Structure: All parts are processed by CNC precision machining technology, with dimensional tolerance controlled within ±0.01mm, ensuring perfect matching with original equipment (OEM compatibility), avoiding installation difficulties and operational jams caused by dimensional deviations. For example, the turntable drive shaft ZJ30 CDZ150 L=500±60 adopts integral forging and precision grinding, with uniform shaft diameter and high concentricity, ensuring stable transmission without vibration.

• High-Strength Material Structure: According to the working conditions of different parts, we select high-quality materials such as carbon steel, alloy steel, ceramic, and nitrile rubber. For example, the ceramic cylinder liner Y001-100140 uses high-purity alumina ceramic material, which has excellent wear resistance and corrosion resistance; the anti-lift safety device button valve FKQ1280-8 DS-ANNF(II)-01-00 adopts high-strength alloy steel, which can withstand high pressure and impact without deformation.

• Sealing & Anti-Wear Structure: Key parts are designed with multi-layer sealing and wear-resistant structures. For example, the oRing 530301011850070001 adopts a double-lip sealing structure, which enhances the sealing effect and prevents fluid leakage; the whole car copper pad copper sleeve 6839821 is designed with a self-lubricating structure, reducing friction and extending service life without additional lubrication.

• Easy Installation Structure: All parts are designed with standardized installation interfaces, consistent with industry standards, which can be directly installed and replaced without modifying the original equipment. For example, the hex head bolt with hole DQ70BS M12×30 adopts a standard thread design, which is easy to install and disassemble with common tools.

Applicable Working Conditions

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

We supply the following spare parts:

1. Oil Drilling Working Conditions

Applicable equipment: ZJ30, ZJ45, ZJ50LDB drilling rigs. Key parts: turntable drive shaft ZJ30 CDZ150 L=500±60, crane ZJ-45 outer ring gear Z=44 106.02.30.09, lifting hydraulic device ZJ30C, anti-lift safety device button valve FKQ1280-8 DS-ANNF(II)-01-00. Adapt to high temperature ( -20℃ ~ 80℃ ), high pressure ( 0 ~ 35MPa ), dust, and vibration environments, ensuring the continuous operation of drilling rigs.

2. Construction Machinery Working Conditions

Applicable equipment: cranes, excavators, loaders. Key parts: balance cylinder shackle DQ70BSC 9702050900, brake pads DBS75-2-01, disc brake DBS75, throttle cylinder P60266-3AB-1. Adapt to outdoor harsh environments such as heavy load, frequent start-stop, and variable temperature, ensuring the safety and stability of machinery operation.

3. Industrial Manufacturing Working Conditions

Applicable equipment: air compressors (TU-FL0 1000), boilers (WNS2-1.25-Y), denison double vane pumps (T6DDS-045-042-3R03-A1-00), Rexroth air control valves (7500248-0004 H-3). Adapt to indoor and outdoor industrial sites, with stable operation under long-term continuous working conditions, meeting the production needs of factories and workshops.

4. Equipment Maintenance Scenarios

Applicable to the maintenance and replacement of old and damaged parts of various industrial equipment. Key parts: filter element 26510342, hydraulic tank return oil filter P200010421, lifting tong cylinder repair kit E6121000000, small wear ring P1100338AA. 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 the following professional maintenance and care suggestions, which are in line with industrial maintenance standards (ISO 14001 and ISO 9001):

1. Regular Inspection: Check the parts every 500 working hours, focusing on the wear, looseness, and leakage of key parts. For example, check the wear of brake pads DBS75-2-01 and the sealing performance of oRing 530301011850070001; if any damage or abnormality is found, replace them in time.

2. Lubrication Maintenance: For transmission parts such as gear hub W24-01-307 and turntable drive shaft ZJ30 CDZ150 L=500±60, apply industrial lubricating oil (recommended model: 46# anti-wear hydraulic oil) every 1000 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 filter element 26510342 and hydraulic tank return oil filter P200010421 every 3 months to avoid blockage and affect the operation of the system.

4. Storage Requirements: Unused parts should be stored in a dry, ventilated, and dust-free warehouse, avoiding direct sunlight and moisture. For example, ceramic cylinder liner Y001-100140 should be stored in a shockproof packaging to avoid collision and damage.

5. Replacement Standard: When the wear of the parts exceeds the allowable range (e.g., the thickness of the brake pad DBS75-2-01 is less than 3mm, the dimensional deviation of the copper pad T001-1702 exceeds ±0.02mm), it should be replaced in time to avoid equipment failure caused by part damage.

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: Drilling Rig Turntable Vibration Fault

Fault Phenomenon: A ZJ30 drilling rig had obvious vibration during operation, and the transmission efficiency decreased, affecting drilling progress. Fault Analysis: After inspection, the turntable drive shaft (original part) had serious wear, with uneven shaft diameter and poor concentricity, leading to unstable transmission. Solution: Replace the original drive shaft with our turntable drive shaft ZJ30 CDZ150 L=500±60 (CNC precision machining, high concentricity). Maintenance Effect: After replacement, the turntable vibration was eliminated, transmission efficiency was restored to normal, and the drilling progress was not affected; the service life is expected to be 2 times that of the original part.

Case 2: Crane Hydraulic Leakage Fault

Fault Phenomenon: A ZJ-45 crane had hydraulic oil leakage at the lifting cylinder, resulting in insufficient lifting force and potential safety hazards. Fault Analysis: The sealing o-ring of the lifting cylinder was aging and worn, leading to oil leakage. Solution: Replace the original o-ring with our oRing 530301011850070001 (high-temperature and high-pressure resistant nitrile rubber material, double-lip sealing structure). Maintenance Effect: After replacement, the hydraulic leakage was completely solved, the lifting force of the crane was restored, and the sealing effect remained stable after 3 months of continuous operation.

Case 3: Air Compressor Overheating Fault

Fault Phenomenon: A TU-FL0 1000 air compressor had overheating during operation, and the machine automatically shut down, affecting production. Fault Analysis: The filter element of the air compressor was blocked by dust, leading to poor heat dissipation and overheating. Solution: Replace the original filter element with our filter element 26510342 (high-efficiency filtration, large dirt-holding capacity). Maintenance Effect: After replacement, the heat dissipation of the air compressor returned to normal, no overheating phenomenon occurred, and the continuous operation time was extended to 8 hours without shutdown.

FAQ (Frequently Asked Questions)

Procurement Guide & Technical Support

Procurement Reference Standards

When purchasing our mechanical 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 parts need to use high-strength alloy steel, high-temperature parts need to use heat-resistant materials).

• Quality Standard: All our parts pass strict quality inspection (ISO 9001 quality management system certification), with quality inspection reports available on request.

• Compatibility Standard: Confirm that the part model matches the equipment model (we provide professional model matching services).

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.

• Our professional technical team provides online consultation services to answer your technical questions in a timely manner.

• Provide on-site technical support for large-scale equipment and key projects (as required).

Call for Procurement

We are committed to providing high-precision, durable, and cost-effective mechanical parts for global industrial users. Our product range covers FKQ3204-HBD40, ZJ30C, ZJ45, Rexroth 7500248-0004 H-3, and other core models, which can meet the diverse needs of oil drilling, construction machinery, industrial manufacturing, and equipment maintenance. Whether you need standard parts or customized parts, we can provide you with one-stop solutions. Choose our mechanical parts to 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.