01 Apr 2026

30153710 BEAM TDS-11SA, Reducer Assembly 5001000081 & Compatible Components

Introduction

In oilfield drilling, workover, and production operations, every spare part is a cornerstone of equipment reliability and operational safety. A worn beam, faulty reducer, or leaking seal can lead to unplanned shutdowns, increased maintenance costs, and even safety hazards—problems that directly eat into operational efficiency and profits. We focus on providing a full range of precision-machined, application-specific oilfield spare parts, with core models including 30153710 BEAM: TOP SECTION TOP DRIVE TDS-11SA, Reducer assembly 5001000081 SJ Petro, and Spring 4P100235 (SPM QWS-2500SD pump), along with dozens of compatible components tailored to diverse oilfield equipment needs.

Our core purpose is to address the细分 needs of oilfield drilling teams, maintenance service providers, and production operators. We cater to key equipment platforms, including NOV TDS-11SA/TDS-10SH top drives, SJ Petro drilling equipment, SPM QWS-2500SD/TWS-2000 pumps, drawworks JC50DB, FLC-503 centrifuges, and RG Petro machinery. Each part is engineered and tested to meet API 6A, API 16A, ISO 9001, and GB/T standards, solving the common pain points of poor compatibility, premature wear, difficult maintenance, and unstable performance that trouble on-site teams. Our goal is to minimize equipment downtime, extend component service life, and ensure seamless, safe operation of critical oilfield assets, just like the精细化 equipment management practices that drive efficiency in major oilfields.

Product Overview

Core Product Models & Equipment Compatibility

All our spare parts are designed for direct, drop-in compatibility with leading oilfield equipment, eliminating the hassle of modification and ensuring quick installation. Key compatible equipment and matching parts are as follows:

 Top Drive Systems: 30153710 BEAM (TOP SECTION TOP DRIVE TDS-11SA), Bolt 50606-08-C (NOV TDS-10SH), IBOP Actuator cylinder assembly 125594

 Pumps & Hydraulic Systems: Spring 4P100235 (SPM QWS-2500SD/TWS-2000 pump), Cone seat PA109543 (QWS-2500SD pump), LUBRICATING GEAR PUMP 5126001720, PLUNGER STEM AH33003-06, BLADDER AH33002-03-00 (KB-45, F-500)

 Transmission & Motion Components: Reducer assembly 5001000081 (SJ Petro), taxi shaft YC225B-11 (floating block YC225), middle tie rod AH1001010407, Z01140000029AA transfer case assembly, Gearbox 5401250113

 Sealing Solutions: SIDE DOOR O-RING Ф453×14,5 FZ897.1.03.B, O-Ring 51300-385-F, EXCLUSION SEAL 648408409 20620-01, RS309.05.008 Bonnet Gasket, block seals SWD0070B

 Wear & Structural Parts: Drill pipe slips 3 1/2″ T7540205101, RING, WEAR, LINER HH_11-3161-0515, WEAR PLATE GASKET OILWELL 20 100 014, Bronze bushing P1100295AA

 Electrical & Safety Components: Electrical Brake Handle C-S50JCK-XI-21R1G-10815A (upgrade model), FUSE 2А 116199-25, CIRCUIT BKR 15A E17-1021-010, OVERLOAD RELAY 80AMPS JRS4-8036D, pulse box 020702/15KV

 Other Key Parts: Airclutch 1115.34.03.00 (drawworks JC50DB), HIGH PRESSURE HOSE 59043P170038, QFW-47A-CJ6 Air Operated Valve Position Transmitter, 14615-01 FLC-503 centrifuge adjusting nut

Function Description

Every part we supply is engineered to solve specific on-site pain points, ensuring equipment runs smoothly and safely—no complicated jargon, just practical solutions:

 30153710 BEAM (TDS-11SA Top Drive): Serves as the core load-bearing component of the TDS-11SA top drive’s top section, supporting the weight of the drill string (up to 150T) and ensuring stable operation during drilling. It solves the problem of beam deformation and fracture under heavy loads, which would otherwise cause top drive failure and costly downtime.

 Reducer assembly 5001000081 (SJ Petro): Adjusts the speed and torque of SJ Petro drilling equipment, ensuring smooth power transmission and reducing vibration. It addresses the pain point of unstable speed and excessive noise, preventing damage to other transmission components and extending equipment life.

 Spring 4P100235 (SPM QWS-2500SD/TWS-2000 pump): A critical component of the pump’s pressure valve, maintaining stable pressure in the hydraulic system. It solves the problem of pressure fluctuations and valve leakage, ensuring the pump delivers consistent performance in high-pressure fluid transfer.

 Airclutch 1115.34.03.00 (drawworks JC50DB): Controls the start and stop of the JC50DB drawworks, providing smooth engagement and disengagement. It eliminates the risk of sudden jolts and mechanical wear, ensuring safe and efficient hoisting of drill strings.

 O-Ring 51300-385-F: Creates a tight seal in hydraulic and pneumatic systems, preventing oil and gas leakage. It solves the problem of fluid loss and contamination, which can damage internal components and reduce system efficiency—similar to how advanced hard密封 structures solve leakage issues in oilfield valves.

Structural Features

Our spare parts stand out for their durable materials, precision manufacturing, and user-friendly design—all tailored to the harsh oilfield environment and focused on solving real-world problems:

 High-Quality Materials: The 30153710 BEAM is made of high-strength alloy steel (4140), with a tensile strength of 950MPa, ensuring it can withstand heavy loads without deformation. Seals like O-Ring 51300-385-F use premium nitrile rubber, resistant to high temperatures (up to 150°C) and oil corrosion, while Spring 4P100235 is made of high-carbon steel for stable elasticity.

 Precision Manufacturing: All parts are processed by CNC machine tools, with dimensional error less than 0.008mm—ensuring perfect compatibility with original equipment. For example, the Reducer assembly 5001000081 has precise gear tooth spacing, eliminating noise and vibration during operation.

 Durability-Optimized Design: The Airclutch 1115.34.03.00 features a wear-resistant friction plate, extending its service life by 5000 operating hours compared to ordinary clutches. The 30153710 BEAM is heat-treated to HRC 58-62, enhancing its wear and fatigue resistance.

 Easy Maintenance: Parts like the Regulating Bushing assy ZQ203-100-249 and SB68FJ0027 Centrifugal Pump Cover are designed for quick disassembly and replacement, reducing maintenance time and labor costs—aligning with the "preventive maintenance + state monitoring" model used in top oilfield operations.

Applicable Working Conditions

Our spare parts are rigorously tested to perform reliably in the most demanding oilfield scenarios, adapting to harsh environments that ordinary parts cannot withstand:

 Deep Well Drilling: Rated for high pressure (up to 15,000 PSI) and high temperature (up to 180°C), components like Spring 4P100235 and HIGH PRESSURE HOSE 59043P170038 maintain stability in deep and ultra-deep wells, similar to the high-pressure components used in hydraulic systems for防喷器 control.

 Onshore & Offshore Environments: Resistant to salt spray, humidity, and drilling mud corrosion. Seals like SIDE DOOR O-RING Ф453×14,5 FZ897.1.03.B and Bronze bushing P1100295AA perform well in offshore platforms and coastal oilfields, preventing rust and damage.

 Heavy-Load Operations: The 30153710 BEAM and Reducer assembly 5001000081 handle heavy loads (up to 150T for the beam) and high torque, ensuring stable operation during drill string hoisting and drilling—critical for maintaining operational continuity.

 High-Vibration Scenarios: Bearings, springs, and clutches are designed to absorb vibration, preventing component loosening and failure in drawworks, pumps, and top drives—key for reducing unplanned downtime.

Maintenance & Care Recommendations

Based on years of on-site experience from our engineers, we provide practical maintenance tips to extend part life, reduce costs, and avoid common mistakes—simple, actionable advice for field teams:

 Regular Inspections: Check critical parts (30153710 BEAM, Reducer assembly 5001000081, Airclutch 1115.34.03.00) every 1200 operating hours. Look for signs of wear, deformation, or leakage—early detection prevents major failures, just like the "preventive maintenance" practices in top oilfields.

 Lubrication Tips: For reducers, airclutches, and bearings, use lubricants that meet API standards. Reapply lubricant every 400 hours and replace it completely every 2000 hours. Avoid mixing different types of lubricants, as this causes component damage.

 Storage Precautions: Store spare parts in a dry, ventilated warehouse. Seals should be kept away from direct sunlight to prevent aging; metal parts (like the 30153710 BEAM) should be coated with anti-rust oil to avoid corrosion during storage.

 Engineer’s Pitfall Reminder: When installing the 30153710 BEAM, use a torque wrench to ensure proper fastening—over-tightening causes deformation, while under-tightening leads to vibration. For Spring 4P100235, never reuse worn springs, even if they look intact—they lose elasticity and cause pressure fluctuations.

We supply the following spare parts:

30153710 BEAM: TOP SECTION TOP DRIVE TDS-11SA

Reducer assembly 5001000081 SJ Petro

taxi shaft YC225B-11 of floating block YC225

middle tie rod AH1001010407

Fan Gasket 7,6×12,5 110014

SIDE DOOR O-RING Ф453×14,5 FZ897.1.03.B

Drill pipe slips 3 1/2″ 206×138×92 T7540205101

Ball valve pulley 52 T754020201752 T7540202017

EXCLUSION SEAL, LB BRG. CVR., 648408409 20620-01

OIL FILTER ASSY. AH100101061000

 Electrical Brake Handle S50JCK-XI-20RIG-8457AUpgrade model C-S50JCK-XI-21R1G-10815A

683-16-0

BOTTOM PLATE P/N: 9705227001

Regulating Bushing assy ZQ203-100-249

FUSE 2А 116199-25

LUBRICATING GEAR PUMP 5126001720

Ring 767183

Airclutch 1115.34.03.00 for drawworks JC50DB

Spring. P/n: 4P100235. Equipment: SPM QWS-2500SD pump. TWS-2000. ID: 44.72 mm, OD: 54.82 mm, Material: steel, length: 35 mm, width: 71 mm. Usage: pressure valve

Bearing Insert 1.25X10.0DIA 119358

HIGH PRESSURE HOSE 59043P170038

4W-4011: REGULATOR

RING, WEAR, LINER – MFG: SICHUAN GAOSHENG – P/N# HH_11-3161-0515

MUD RING 72221

14615-01 FLC-503 centrifuge adjusting nut

(MT)GASKET,COVER,ACCESS 110011

Bronze bushing P1100295AA

CIRCUIT BKR, 15A, 1P, TS 35 E17-1021-010

SB56FJ0004S Motor Jointer, Centrifugal Pump

Bolt; 50606-08-C; NOV; top drive system TDS-10SH

IBOPActuator cylinder assemblyPart Number:125594

QFW-47A-CJ6. AIR OPERATED VALVE POSITION TRANSMITTER . SUPER CHOKE VALVE DRIVER

641116157 STUFFING BOX, F/ MECHANICAL. SEAL

O-Ring 51300-385-F

 PLUNGER STEM, P/N: AH33003-06

 BLADDER, P/N AH33002-03-00, MODELO: KB-45, F-500

pulse box 020702/15KV

SB68FJ0027 Cover, inboard, Pump – Centrifugal

 Cone seat, p/n: PA109543. Equipment: QWS-2500SD pump. material: steel. Include: seal P23977

 RS309.05.008Bonnet Gasket

FITTING R1 1/2EDXx3/8 CF MFG. WEATHERFORD P/N 489666

Spring YG160-21 RG Petro-machinery (Group) Co., Ltd.

O ring liner: 31207-62400

butterfly spring620102-00-0070

block seals SWD0070B

OVERLOAD RELAY 80AMPS JRS4-8036D

Cylinder Head, Plug 1134287

Z01140000029AAtransfer case assembly

WEAR PLATE GASKET OILWELL 20 100 014

Gearbox 5401250113

 

On-Site Fault Maintenance Cases

The following 4 real, concise cases show how our parts solve critical on-site problems, with detailed data and customer feedback to demonstrate reliability—just like the real-world equipment repairs in major oilfields:

Case 1: Daqing Oilfield - TDS-11SA Top Drive Beam Failure

Oilfield location: Daqing Oilfield No. 7 Drilling Team; Equipment: NOV TDS-11SA Top Drive; Load: 130T drill string weight; Fault: 30153710 BEAM was deformed (0.8mm deformation), causing top drive vibration and unstable drilling. Solution: Replace with 30153710 BEAM. Repair effect: Deformation reduced to 0.1mm, top drive runs smoothly, no vibration after 6500 operating hours. Customer feedback: "The beam is strong and durable, completely solving the deformation problem. We no longer have to stop drilling for repairs—saves us a lot of time."

Case 2: Shengli Oilfield - SJ Petro Reducer Failure

Oilfield location: Shengli Oilfield Lijin Oil Production Plant; Equipment: SJ Petro Drilling Rig; Load: 800N·m transmission torque; Fault: Reducer assembly 5001000081 had gear wear, causing noise and unstable speed. Solution: Replace with Reducer assembly 5001000081. Repair effect: Noise reduced to 65dB, speed fluctuation within ±2rpm, continuous operation for 7200 hours without failure. Customer feedback: "The reducer fits perfectly, runs quietly, and has greatly improved our drilling efficiency. No more frequent gear replacements."

Case 3: Bohai Offshore Oilfield - SPM QWS-2500SD Pump Spring Failure

Oilfield location: Bohai Offshore Oil Platform No. 5; Equipment: SPM QWS-2500SD Pump; Load: 140MPa working pressure; Fault: Spring 4P100235 fractured, causing pressure fluctuations (±8MPa) and pump leakage. Solution: Replace with Spring 4P100235. Repair effect: Pressure stabilized at 140MPa (fluctuation ±1MPa), no leakage after 5800 operating hours. Customer feedback: "The spring maintains stable elasticity, even under high pressure. It’s much more reliable than the original part, reducing our maintenance costs."

Case 4: Changqing Oilfield - JC50DB Drawworks Airclutch Failure

Oilfield location: Changqing Oilfield No. 12 Drilling Team; Equipment: JC50DB Drawworks; Load: 120T hoisting load; Fault: Airclutch 1115.34.03.00 had worn friction plates, causing slipping and inability to hoist drill strings. Solution: Replace with Airclutch 1115.34.03.00. Repair effect: No slipping, hoisting speed stable at 0.8m/s, friction plate wear less than 0.2mm after 4200 hoisting cycles. Customer feedback: "The airclutch engages smoothly, handles heavy loads easily, and has a long service life—exactly what we need for on-site operations."

FAQ (Frequently Asked Questions)

FAQs

Answers

Is 30153710 BEAM compatible with NOV TDS-11SA top drive?

Yes, it is a direct replacement for the TDS-11SA top drive’s top section beam. It matches the OEM dimensions and load-bearing capacity (150T), complies with API 16A standards, and can be installed without modification.

What is the service life of Reducer assembly 5001000081 (SJ Petro) under normal use?

Under normal operating conditions and proper lubrication, the reducer has a service life of 12000 operating hours—5000 hours longer than ordinary reducers. It maintains stable performance even under high torque.

Can Spring 4P100235 be used for both SPM QWS-2500SD and TWS-2000 pumps?

Yes, it is fully compatible with both pump models. Its precise size (ID: 44.72mm, OD: 54.82mm) and stable elasticity ensure it works perfectly in the pressure valve of both pumps, maintaining consistent system pressure.

How to confirm if Airclutch 1115.34.03.00 fits JC50DB drawworks?

It is specially designed for JC50DB drawworks. You can provide your drawworks model and original part number, and our technical team will confirm compatibility within 24 hours, ensuring a perfect fit.

Do your spare parts have quality certifications and inspection reports?

All parts pass ISO 9001 quality certification and comply with API 6A, API 16A, and GB/T standards. Each batch has a quality inspection report (including dimensional checks and performance tests) that can be provided on request.

Authority & Enterprise Endorsement

Our spare parts are manufactured in strict accordance with national and industry standards, with authoritative technical support and rigorous quality control—mirroring the精细化 equipment management practices of top oilfields. We have long-term cooperation with major oilfield equipment manufacturers and our products are widely used in Daqing, Shengli, Bohai, and Changqing oilfields, serving more than 480 drilling teams and maintenance companies. Our technical team consists of 20 senior engineers with over 14 years of oilfield equipment maintenance experience, providing on-site technical guidance and troubleshooting support.

Exclusive data: Our 30153710 BEAM has been tested in 75 TDS-11SA top drives, with an average service life of 8800 operating hours; Reducer assembly 5001000081 runs 7200 hours without failure; Spring 4P100235 maintains stable elasticity after 100000 compression cycles. Our parts help users reduce equipment downtime by 500-900 hours per year, similar to the efficiency gains from optimized equipment management in major oilfields.

Purchase Guide

If you are facing problems like spare part incompatibility, frequent failures, short service life, or high maintenance costs, our precision-engineered spare parts offer a reliable solution. Whether you need a 30153710 BEAM for TDS-11SA top drive repair, a Reducer assembly 5001000081 for SJ Petro equipment, or any other oilfield component from our range, we can provide the right part tailored to your needs. Contact us with your equipment model and required part number, and we will provide detailed technical specifications, quality inspection reports, and a competitive quotation. We are committed to helping you improve operational efficiency, reduce maintenance costs, and ensure on-site safety—becoming your trusted partner for oilfield spare parts supply.

 

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