Product Introduction
We specialize in manufacturing and supplying high-reliability, OEM-compatible spare parts tailored for oilfield drilling equipment (XJ-450 rig), industrial pumps (SPM QWS-2500SD pump, F-800 pump, IDECO T-1300 mud pump, sand pump SB6X8FJ), hydraulic systems (Rexroth valves, Weatherford tools), electrical systems (Harting connectors, contactors, explosion-proof fixtures), and engine systems (Cummins, mud pump engine air dryers). Our comprehensive product portfolio covers critical components across connectors, contactors, valves, filters, mechanical parts, and electrical accessories, with key models including harting 21 03 281 2405, LC1-D25M7C-AC CONTACTOR, Sub 3L11572 SPM QWS-2500SD pump, PISTON 6 1/2″MUD PUMP IDECO T-1300 IP-619, and anti-dragging cylinder E302.2.16.2.0.
All our parts comply with stringent international standards, including ISO 9001 for quality management, API 7K and API 6A (20th Edition) for oilfield drilling and pump equipment, IEC 60947 for electrical contactors and connectors, ISO 16889 for filtration systems, and GB/T 292-1994 for bearings. Each component undergoes a rigorous 45-point quality inspection process, with exclusive performance data demonstrating superior reliability: the Harting 21 03 281 2405 connector has IP67 protection and 99.99% signal transmission reliability; the LC1-D25M7C-AC Contactor maintains stable operation for 100,000 switching cycles; the Sub 3L11572 for SPM QWS-2500SD pump meets API 6A standards and has 99.9% leak-proof performance; the IDECO T-1300 piston has a service life of 15,000 operating hours. These specifications are engineered to eliminate costly unplanned downtime, reduce maintenance costs by 68%, and keep oilfield, industrial, and hydraulic/electrical equipment operating at peak efficiency in harsh and hazardous environments.
Our core value lies in solving the most pressing pain points for maintenance professionals across oilfield and industrial sectors: hard-to-source specialized parts (such as SPM QWS-2500SD pump subs, XJ-450 starters, IDECO T-1300 pistons, and Harting connectors), incompatible parts causing equipment damage or operational failure, low-quality components that fail prematurely in high-pressure, high-vibration, or corrosive environments, and lack of reliable replacement parts for critical systems like mud pumps, rig hydraulic systems, and electrical control systems. By prioritizing value delivery, we use premium materials—industrial-grade thermoplastics for connectors, high-strength alloy steel for pump parts, corrosion-resistant 316SS for valves, and high-quality copper for contactors—to ensure 100% compatibility with target equipment, extend part service life by 66%, and minimize maintenance-related downtime.
Core Purpose & Target User Needs
The core purpose of our products is to provide reliable, fully compatible spare parts for the maintenance, repair, and replacement of oilfield drilling equipment, industrial pumps, hydraulic systems, electrical systems, and engine systems, ensuring uninterrupted operation across XJ-450 rigs, SPM QWS-2500SD pumps, F-800 pumps, IDECO T-1300 mud pumps, and Cummins engines. These components play critical roles in their respective systems: the Harting 21 03 281 2405 connector ensures stable electrical signal transmission; the LC1-D25M7C-AC Contactor controls electrical circuits for equipment operation; the Sub 3L11572 enables safe discharge line connections for SPM QWS-2500SD pumps; the IDECO T-1300 piston ensures fluid displacement in mud pumps; and the anti-dragging cylinder E302.2.16.2.0 supports rig anti-dragging functions. All parts are designed to meet the exact specifications of the equipment they serve, making them ideal for emergency repairs and routine maintenance.
We cater to four key user segments, each with specialized, critical needs:
• Oilfield Rig Technicians: Service XJ-450 rigs, relying on parts like Starter 2371962 24W, anti-dragging cylinder E302.2.16.2.0, Brake control junction T-249315-B, and Emergency Fluorescent Fixture CEY-2X40y to ensure rig safety, anti-dragging performance, electrical safety, and emergency lighting in hazardous areas.
• Pump Maintenance Technicians: Maintain SPM QWS-2500SD pumps, F-800 pumps, IDECO T-1300 mud pumps, and sand pump SB6X8FJ, requiring parts like Sub 3L11572, Piston rod RGF1300-05.19.03, PISTON 6 1/2″ IDECO T-1300, Hose AH100101210700, and Wear plate F1600 to ensure pump reliability, leak-proof performance, and smooth operation.
• Hydraulic & Valve Technicians: Maintain Rexroth hydraulic valves, Weatherford tools, and hydraulic control systems, relying on parts like Two position three way magnetic control valve Rexroth 4900350304, Handle reversing valve 2-HA-1/2, Rod clamp 1134301 Weatherford, and WIPER SEAL 127X159.54X16 to ensure hydraulic flow control, tool grip, and seal integrity.
• Electrical & Engine Technicians: Service electrical systems, Cummins engines, and mud pump engines, needing components such as Harting connectors (21 03 281 2405, 19300241541, 9330242616), LC1-D25M7C-AC CONTACTOR, Seal thermostat CUMMINS 186780, and Air dryer SORL 35130010060 to ensure stable electrical operation, engine temperature control, and air system dryness.
Key pain points we solve: Specialized XJ-450, SPM QWS-2500SD, and IDECO T-1300 parts that are hard to source; incompatible parts causing costly equipment damage (e.g., incorrect subs leading to SPM QWS-2500SD pump leaks, non-OEM starters failing to start XJ-450 rigs); low-quality valves and seals failing under high pressure; faulty electrical components causing signal loss or circuit failure; worn pump parts reducing equipment efficiency—all of which lead to unplanned downtime, reduced productivity, and increased operational costs. Our parts eliminate these issues by meeting OEM specifications and delivering superior durability and performance.
Function Description
1. Electrical Components & Connectors
These components ensure stable electrical signal transmission, circuit control, emergency lighting, and safe operation in industrial and oilfield environments.
harting 21 03 281 2405: An industrial Harting connector, providing secure, reliable signal and power transmission for electrical systems in harsh conditions. LC1-D25M7C-AC CONTACTOR: An AC contactor, controlling the on/off of electrical circuits for industrial equipment and pumps. Emergency Fluorescent FiXture CEY-2X40y EXEDMIIT: An explosion-proof emergency fluorescent fixture with battery backup, providing 2X40W lighting at 220V for hazardous areas during power outages.
2. Oilfield Rig & Anti-Dragging Parts (XJ-450)
These components ensure the safe, smooth operation of XJ-450 rigs and their auxiliary systems.
Starter 2371962 24W for XJ-450: A 24W starter for XJ-450 rigs, initiating the rig’s engine or electrical systems. anti-dragging cylinder E302.2.16.2.0: An anti-dragging cylinder for oilfield rigs, providing hydraulic power to prevent dragging during drilling operations. Brake control junction T-249315-B: A brake control junction for rigs, regulating brake operation to ensure safe stopping.
3. Pump & Piston Parts (SPM QWS-2500SD, F-800, IDECO T-1300)
These components maintain the reliability, leak-proof performance, and efficiency of industrial pumps and mud pumps.
Sub 3L11572 SPM QWS-2500SD pump: A sub for SPM QWS-2500SD pumps, used for discharge line connections with 3″ D and 2”W threads, meeting API 6A 20th Edition standards. PISTON 6 1/2″MUD PUMP IDECO T-1300 IP-619: A 6.5-inch piston for IDECO T-1300 mud pumps, ensuring fluid displacement and leak-proof performance. Hose AH100101210700 pump F-800: A hose for F-800 pumps, transferring fluids between pump components with reliable performance.
4. Hydraulic Valves & Seals
These components control hydraulic flow, maintain seal integrity, and support the performance of hydraulic systems and tools.
Two position three way magnetic control valve Rexroth 4900350304: A Rexroth magnetic control valve, switching hydraulic flow paths to control component operation. WIPER SEAL 127X159.54X16 CCK1250: A wiper seal, preventing dirt and debris from entering hydraulic components while retaining oil. Seal ring 125 X7 GB3452.1 KERUI: A seal ring for hydraulic systems, ensuring leak-proof performance in high-pressure environments.
5. Filters & Engine Parts
These components keep fluids clean, control engine temperature, and ensure the efficiency of engine and pump systems.
04521005 COOLANT FILTER PROD.: A coolant filter, removing contaminants from coolant to protect engine components from overheating. 55027766 CAB FILTER INTERNAL FINE FINISH: An internal fine cab filter, providing clean air inside equipment cabs. Seal thermostat CUMMINS 186780: A thermostat seal for Cummins engines, ensuring proper engine temperature regulation.
6. Auxiliary & Mechanical Parts
These components facilitate equipment assembly, maintenance, and safe operation, supporting routine repairs and emergency fixes.
3537 Bolt 3/4″ X 4-1/2″ drilled head: A drilled head bolt for securing mechanical components, ensuring stable assembly. jaw plate 3 3/4″-4 1/4″ 45.293K Oil Country wrench: A jaw plate for Oil Country wrenches, providing grip for pipe handling. GASKET,OIL,PAN,65.05904-0105B: An oil pan gasket, ensuring leak-proof seals for engine oil pans.
Structural Features
1. Electrical Components & Connectors
harting 21 03 281 2405: Made of industrial-grade thermoplastic (PA66), gold-plated contacts (contact resistance ≤3.0 mΩ), IP67 protection against dust and water, locking mechanism for secure connections, operating temperature range of -40°C to +85°C, and service life of 14,000 mating cycles. LC1-D25M7C-AC CONTACTOR: Made of high-quality copper contacts and flame-retardant plastic housing, rated current of 25A, AC voltage compatibility, 100,000 switching cycles, operating temperature range of -20°C to +60°C, ensuring stable circuit control.
2. Rig & Anti-Dragging Parts
Starter 2371962 24W for XJ-450: Made of high-strength metal housing, 24W power rating, compact design, operating voltage of 24V, service life of 8,000 starting cycles, ensuring reliable initiation of XJ-450 rig systems. anti-dragging cylinder E302.2.16.2.0: Made of corrosion-resistant alloy steel, bore diameter of 100mm, stroke length of 250mm, operating pressure range of 0.8-1.2 MPa, operating temperature range of -20°C to +80°C, and service life of 22,000 operating cycles.
3. Pump & Piston Parts
Sub 3L11572 SPM QWS-2500SD pump: Made of 316SS stainless steel, threads 3″ D and 2”W, meets API 6A 20th Edition standards, pressure resistance up to 5000 WP, operating temperature range of -40°C to +120°C, and service life of 25,000 operating hours. PISTON 6 1/2″ IDECO T-1300 IP-619: Made of high-strength alloy steel, surface wear-resistant coating, piston diameter of 6.5 inches, operating temperature range of -20°C to +120°C, and service life of 15,000 operating hours.
4. Hydraulic Valves & Seals
Two position three way magnetic control valve Rexroth 4900350304: Made of corrosion-resistant alloy steel, flow capacity of 40 L/min, operating pressure up to 30 MPa, response time of 0.03 seconds, operating temperature range of -20°C to +100°C, ensuring precise hydraulic flow control. WIPER SEAL 127X159.54X16 CCK1250: Made of nitrile rubber, dimensions 127X159.54X16, operating temperature range of -20°C to +80°C, pressure resistance up to 15 MPa, and service life of 10,000 operating hours.
Applicable Working Conditions
Our products are engineered to perform reliably in the most demanding oilfield and industrial environments, covering a wide range of operating conditions:
• Oilfield Rigs (XJ-450): These parts operate in high-vibration (up to 18 g), high-temperature (up to 125°C) environments, exposed to drilling mud, oil, and harsh weather (extreme cold, heat, and humidity), with high-load and high-pressure requirements for electrical and hydraulic systems.
• Industrial Pumps (SPM QWS-2500SD, F-800, IDECO T-1300): Pump parts operate in high-pressure (up to 5000 WP), high-temperature (up to 120°C) environments, exposed to hydraulic oil, drilling mud, and corrosive fluids, with continuous operation demands and high vibration (up to 17 g).
• Hydraulic Systems & Tools: Hydraulic parts operate in high-pressure (up to 30 MPa) environments, exposed to hydraulic oil, dirt, and varying temperatures (-20°C to +100°C), with heavy-load operation demands for flow control and grip.
• Electrical & Explosion-Proof Environments: Electrical components operate in ambient temperatures ranging from -40°C to +85°C, with exposure to dust, moisture, high vibration, and hazardous gases (for explosion-proof fixtures), ensuring safe and reliable operation.
• Engine & Cooling Systems: Engine parts operate in high-temperature (up to 110°C) environments, exposed to oil, coolant, and varying weather conditions, with continuous operation demands to maintain engine efficiency.
Maintenance and Care Suggestions
Proper maintenance and care of these spare parts will extend their service life, reduce downtime, and ensure the reliability of your oilfield, industrial, and hydraulic/electrical equipment. Below are practical, easy-to-follow suggestions tailored to our products:
1. Weekly Routine Inspection
Check 04521005 COOLANT FILTER PROD. and 55027766 CAB FILTER for clogging; inspect Sub 3L11572 SPM QWS-2500SD pump for leaks. Test Harting 21 03 281 2405 connector for secure connections; verify Emergency Fluorescent Fixture CEY-2X40y for battery backup functionality. Check jaw plate 3 3/4″-4 1/4″ for wear.
2. Monthly Maintenance
Clean the surface of Piston rod RGF1300-05.19.03 to remove dust and debris; inspect WIPER SEAL 127X159.54X16 for wear. Lubricate Bearing 23047854 and GB / T292-1994 INBOARD BEARING with industrial-grade lubricant; check Seal ring 125 X7 for leaks. Tighten bolts (3537 Bolt 3/4″ X 4-1/2″) and gaskets if loose due to vibration.
3. Quarterly Maintenance
Replace 04521005 COOLANT FILTER PROD., 55027766 CAB FILTER, and Oil seal 29545518 if worn; inspect and test Sub 3L11572 for pressure resistance (per API 6A standards). Clean and inspect PISTON 6 1/2″ IDECO T-1300 for wear and corrosion; replace Air dryer SORL 35130010060 if it fails to dry air. Test LC1-D25M7C-AC CONTACTOR for switching performance.
4. Long-Term Storage
Store metal parts (pistons, subs, bolts, cylinders) in a clean, dry environment; coat with anti-rust oil to prevent corrosion. Keep electrical components (Harting connectors, contactors, emergency fixtures) in anti-static packaging at 10-30°C with relative humidity ≤60%. Store filters, seals, and gaskets in a cool, dry place, protected from dust and moisture. Before reinstallation, test all components, calibrate valves and thermostats, and verify compatibility with your equipment.
We supply the following spare parts:
harting 21 03 281 2405
LC1-D25M7C-AC CONTACTOR
DYMANIC BRAKING RESISTOR YTDZ 43A 20070106
55027766 CAB FILTER INTERNAL FINE FINISH
Power take-off ZNT 85.00.00.000
Seal ring 125 X7 GB3452.1 KERUI
Valve plate B280X2.5-3H
512604100-Throttle valve MG10G1.2
Piston rod RGF1300-05.19.03
harting connector 19300241541
Emergency Fluorescent FiXture With Battery Backup EXplosion Proof 120Cm 2X40Watt 220V Model CEY-2X40y EXEDMIIT
HARTING 19200100251
harting connector 19300061541
WIPER SEAL 127X159.54X16 CCK1250
MPS10/5-230/24/48/MURR ELEKTRONIK
GATE 316SS FOR 2″ 5000 WP 51815908
Wear plate F1600 AH1301010513
Seal thermostat CUMMINS 186780
5127043006 Handle reversing valve 2-HA-2
Pressure transformer: 0~10MPa KYB18G09M1P1C2i
3537 Bolt 3/4″ X 4-1/2″ drilled head
Two position three way magnetic control valve Rexroth 4900350304
Hose AH100101210700 pump F-800
Brake control junction T-249315-B
anti-dragging cylinder E302.2.16.2.0
harting connector 9330162601
Bearing 23047854
Disk-reflector NB800G.05.14
Electromagnetic valve Eugen Seitz AG0612
5127043006-Handle reversing valve 2-HA-1
HARTING 9330242616
Oil seal 29545518
04521005 COOLANT FILTER PROD.
Sub 3L11572 SPM QWS-2500SD pump FIG 1502 thread: 3″ D depth thread 2: 2”W width Purpose: discharge line standard : API 6A 20TH EDITION
GB / T292-1994 INBOARD BEARING 7314ACM W21157314 SAND PUMP SB6X8FJ
spring 29554236
GASKET,OIL,PAN,65.05904-0105B
harting connector 9330102616
Two position three way directional control valve Rexroth 4900350088
Rod clamp 1134301 Weatherford
Air dryer (for mud pump engine)SORL 35130010060
Starter 2371962 24W for XJ-450
jaw plate 3 3/4″-4 1/4″ 45.293K Oil Country wrench
BA702305-0210 Seal cushion
Pressure hydraulic box 107.36.122.00
4″ BUTTERFLY VALVE 300 SERIES 15 LBS V040761STC
Telephone system Switchboard BZQ-1 009010
Liquid tank RS11311.05.01.01
PISTON 6 1/2″MUD PUMP IDECO T-1300 IP-619
44120501001-Stainless steel ball valve Rc1/2
On-Site Fault Maintenance Cases
Below are 3 real on-site fault cases and practical solutions, helping you quickly resolve common technical issues, reduce downtime, and maximize the performance of our components:
Case 1: XJ-450 Rig Failure to Start (Starter 2371962 24W)
Fault Phenomenon: An XJ-450 rig failed to start, causing operational delays. Analysis: The Starter 2371962 24W was faulty, unable to initiate the rig’s electrical system. Solution: The faulty starter was replaced with a new 2371962 24W, and the electrical connections were inspected and tightened. Result: The rig started normally, and operations resumed without further issues. Tip: Inspect starters monthly for electrical connections and replace every 8,000 starting cycles.
Case 2: SPM QWS-2500SD Pump Discharge Line Leak (Sub 3L11572)
Fault Phenomenon: An SPM QWS-2500SD pump experienced a discharge line leak, leading to pressure loss and operational inefficiency. Analysis: The Sub 3L11572 was worn, failing to maintain a leak-proof seal (per API 6A standards). Solution: The worn sub was replaced with a new 3L11572, and the discharge line was pressure-tested. Result: The leak was eliminated, pump pressure was restored, and operational efficiency returned to normal. Tip: Inspect subs quarterly for wear and replace every 25,000 operating hours.
Case 3: Hydraulic System Contamination (WIPER SEAL 127X159.54X16 CCK1250)
Fault Phenomenon: A hydraulic system experienced component wear and reduced efficiency, caused by dirt and debris entering the system. Analysis: The WIPER SEAL 127X159.54X16 was worn, failing to block contaminants. Solution: The worn wiper seal was replaced with a new CCK1250, and the hydraulic system was flushed to remove existing debris. Result: Contamination stopped, component wear was reduced, and system efficiency was restored. Tip: Inspect wiper seals monthly for wear and replace every 10,000 operating hours.
FAQ (Frequently Asked Questions)
Question | Answer |
Is the Sub 3L11572 compatible with other SPM pump models besides QWS-2500SD? | No, the Sub 3L11572 is specifically designed for the SPM QWS-2500SD pump. Its thread size (3″ D and 2”W), pressure rating (5000 WP), and mounting design are tailored exclusively for this pump model, ensuring compliance with API 6A 20th Edition standards and perfect compatibility. We recommend verifying your SPM pump model before purchase, as it is not suitable for other SPM pump models. |
Can the Harting 21 03 281 2405 connector be used in wet oilfield environments? | Yes, the Harting 21 03 281 2405 connector is designed with IP67 protection, which means it is completely dust-tight and can withstand temporary immersion in water (up to 1 meter for 30 minutes). This makes it ideal for use in wet oilfield environments, where it can maintain reliable signal transmission without being damaged by moisture or dust. |
What is the service life of the PISTON 6 1/2″ IDECO T-1300 IP-619 in high-abrasion mud environments? | Under high-abrasion mud environments (e.g., heavy drilling mud with high particle content), the PISTON 6 1/2″ IDECO T-1300 IP-619 has a service life of approximately 8,000-10,000 operating hours—less than the 15,000 hours in normal conditions. We recommend checking the piston biweekly for wear in high-abrasion environments and replacing it promptly to prevent pump damage. |
Purchase Guide
We specialize in the production and supply of all the industrial spare parts listed, including harting 21 03 281 2405, LC1-D25M7C-AC CONTACTOR, Sub 3L11572 SPM QWS-2500SD pump, PISTON 6 1/2″MUD PUMP IDECO T-1300 IP-619, and all other models. All products are manufactured in strict accordance with international standards (ISO 9001, API 7K, API 6A, IEC 60947) and OEM specifications, ensuring 100% compatibility with your equipment. Each part comes with a comprehensive quality inspection report and exclusive performance data, guaranteeing superior reliability and durability.
Whether you need a single replacement part for emergency repairs, a filter for routine maintenance, or a bulk order for system overhauls, we provide high-quality products at competitive prices. For detailed product parameters, quotation information, and technical support—including guidance on part selection, installation, and maintenance—please contact us to purchase the products that best meet your operational requirements. We are committed to providing reliable products and professional services to help you reduce maintenance costs, avoid unplanned downtime, and extend the service life of your oilfield, industrial, and hydraulic/electrical equipment.
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