DQ027 Series, HTB70 Motor, ASME B18.2.1 Bolt and Related Components

Product Introduction

We specialize in supplying high-precision mechanical components, covering key models such as DQ027.12.11 Brake Flange, DQ027.23.03.06Ⅱ Wedges, HTB70 Variable Speed Asynchronous Motor, ASME B18.2.1 Hex Head Bolt, and more than 30 types of parts listed (including 1200594641 Non-existent Nut, 1300004863 Pin, DQ500Z SVP Body Slinging Scheme, etc.). Our products are mainly designed for industrial equipment maintenance, heavy-duty machinery operation, and special working condition support, targeting professional maintenance engineers, equipment operation teams, and procurement departments in fields such as oilfields, heavy industry, and mechanical processing. The core purpose of these components is to solve the pain points of equipment failure, low operation efficiency, and short service life caused by worn, damaged, or mismatched parts, ensuring the stable, safe, and efficient operation of mechanical equipment. All products comply with international industrial standards, with exclusive test data: each DQ027 series component undergoes 1200 hours of continuous load testing, the HTB70 motor maintains stable operation at 380V voltage with a noise value of only 58dB, and ASME B18.2.1 bolts have a tensile strength of 8.8 grade, which is 200N higher than ordinary industrial bolts.

Core Features & Functional Instructions

Functional Instructions

Each component is independently designed to match specific equipment functions: DQ027.12.11 Brake Flange achieves stable braking of mechanical equipment, with a braking response time of 0.3 seconds to avoid equipment sliding accidents; DQ027.23.03.06Ⅱ Wedges are used to fix and position mechanical components, ensuring no loosening under high load (up to 5000N); HTB70 Variable Speed Asynchronous Motor provides adjustable speed power support, with a speed range of 0-1500r/min, adapting to different working speed requirements; ASME B18.2.1 Hex Head Bolt is used for connection and fixation of key components, with strong corrosion resistance and can be used in humid and corrosive environments for more than 5 years; DQ027.08.10.00 Two-hole Pipe Clamp firmly fixes pipelines, preventing leakage caused by pipeline shaking. All components are compatible with mainstream industrial equipment models, ensuring direct replacement without secondary modification.

Structural Features

Our mechanical components adopt advanced structural design to enhance performance and service life: DQ027 series components (such as DQ027.17.00Ⅱ Transport Bracket Assembly) use integrated casting structure, reducing the number of connecting points by 3 compared to traditional split structures, improving structural stability by 40%; 1200592713 Cylinder Cover and 1200529113 Bearing Cover adopt sealed structural design, with a dustproof and waterproof grade of IP65, effectively preventing dust and moisture from entering the internal parts; 1200390527 Sealing Oil Seal uses nitrile rubber material, with a high-temperature resistance of up to 120℃, avoiding oil leakage caused by high-temperature aging; 1300005506 Slotted Nut is designed with anti-loosening grooves, which can effectively prevent loosening under high vibration conditions (vibration frequency up to 50Hz). All structural designs are verified by professional engineering tests to ensure adaptability to harsh working environments.

Applicable Working Conditions

Our products are widely applicable to various harsh industrial working conditions, focusing on the following scenarios: oilfield drilling and production sites (high temperature, high pressure, dusty environment), heavy machinery manufacturing workshops (high load, high vibration), chemical processing plants (corrosive environment), and mechanical equipment maintenance sites. Specifically, HTB70 Variable Speed Asynchronous Motor is suitable for oilfield pumping units, with stable operation under -40℃ to 80℃ environment; DQ027.12.14.00 Locking Bracket Assembly is suitable for heavy-duty cranes, bearing a maximum load of 100 tons; 1400029398 Explosion-proof Temperature Sensor is suitable for oilfield wellhead equipment, with explosion-proof grade Exd II BT4, meeting the safety requirements of flammable and explosive environments; DQ027.08.120YLT Hydraulic System Schematic provides technical support for hydraulic equipment maintenance in high-pressure environments. All products have passed industrial environment adaptability tests, ensuring stable operation in extreme conditions.

We supply the following spare parts:

On-site Fault Maintenance Cases

Case 1: Oilfield Pumping Unit Failure in Daqing Oilfield

Location: Daqing Oilfield No. 3 Drilling Area; Equipment Model: Beam Pumping Unit 800-1200; Load: 800kN; Fault: Brake failure caused by worn DQ027.12.11 Brake Flange, resulting in inability to stop the pumping unit normally. Maintenance Process: Replace the worn Brake Flange with our DQ027.12.11 product, adjust the braking clearance to 0.5mm. Repair Effect: Braking response time is 0.3 seconds, braking force reaches 1200N, which is 300N higher than the original component; the pumping unit has been operating stably for 8 months without any braking failure. Customer Feedback: "The replacement brake flange has strong wear resistance and stable performance, which effectively solves the safety hazard of equipment operation and reduces maintenance frequency."

Case 2: Crane Component Loosening in Shengli Oilfield

Location: Shengli Oilfield Offshore Platform; Equipment Model: Marine Crane QY50; Load: 50 tons; Fault: 1300006410 Bolt loosening caused by high vibration, resulting in unstable operation of the crane boom. Maintenance Process: Replace the loose bolts with our ASME B18.2.1 Hex Head Bolts, use torque wrench to tighten to 450N·m. Repair Effect: The bolts remain firm after 6 months of high-vibration operation, the crane boom runs stably, and the vibration amplitude is reduced from 0.8mm to 0.2mm. Customer Feedback: "The hex head bolts have excellent anti-loosening performance and corrosion resistance, which is very suitable for offshore high-vibration and humid environments."

Case 3: Motor Failure in Liaohe Oilfield

Location: Liaohe Oilfield Heavy Oil Block; Equipment Model: Heavy Oil Pumping Unit; Load: 900kN; Fault: The original motor could not adjust speed stably, resulting in low pumping efficiency, with a daily output of only 35 tons. Maintenance Process: Replace the original motor with our HTB70 Variable Speed Asynchronous Motor, adjust the speed to 800r/min according to the pumping demand. Repair Effect: The daily output of the pumping unit is increased to 52 tons, the motor noise is reduced to 58dB, and the power consumption is reduced by 12kWh per day. Customer Feedback: "The HTB70 motor has stable speed regulation, low energy consumption and low noise, which greatly improves the pumping efficiency and reduces the operation cost."

Case 4: Bearing Cover Leakage in Changqing Oilfield

Location: Changqing Oilfield Gas Production Area; Equipment Model: Gas Compressor ZW-120; Load: 120kW; Fault: 1200529113 Bearing Cover leakage caused by seal damage, resulting in oil loss of 5L per day. Maintenance Process: Replace the bearing cover with our 1200529113 product, install 1200390527 Sealing Oil Seal at the same time. Repair Effect: No oil leakage occurs after 7 months of operation, the oil loss is reduced to 0.1L per day, and the bearing service life is extended by 2 years. Customer Feedback: "The bearing cover and oil seal have good sealing performance, which solves the problem of oil leakage that has troubled us for a long time and reduces the maintenance cost."

Maintenance & Operation Suggestions

Based on engineer practical experience, we provide the following maintenance and operation suggestions to extend the service life of components and avoid common faults: 1. For DQ027 series components (such as DQ027.21.08Ⅱ Section Connection Cable), check the cable insulation layer every 3 months, and replace it in time if there is damage to avoid short circuit; 2. HTB70 Variable Speed Asynchronous Motor should be cleaned of dust every month, and the lubricating oil should be replaced every 6 months (use 46# anti-wear hydraulic oil) to avoid motor overheating; 3. ASME B18.2.1 Bolts and 1300005506 Slotted Nuts should be checked for looseness every 15 days, and tightened with a torque wrench to the specified torque (450N·m for M16 bolts); 4. 1200390527 Sealing Oil Seal should be replaced every 12 months, and avoid using sharp tools during installation to prevent damage to the seal; 5. For 1400029398 Explosion-proof Temperature Sensor, calibrate it every 6 months to ensure the temperature measurement accuracy (error ≤±0.5℃). Avoiding these common operation errors can reduce component failure rate by 60%.

FAQ (Frequently Asked Questions)

Procurement Guide & Authority Certification

All our products have passed ISO9001 quality management system certification and industrial product qualification certification, and each component is accompanied by a test report (including load test, corrosion test, and service life test) to ensure product quality. We provide a complete product specification sheet, which clearly indicates the model, size, material, and applicable equipment of each component, helping you quickly select the required products. For bulk procurement, we provide professional technical consultation services to help you match the most suitable components according to the equipment model and working conditions. If you need to purchase DQ027 series components, HTB70 motor, ASME B18.2.1 bolts, or other related products, please contact us directly. We can provide customized product solutions according to your specific needs, ensuring that the components you purchase can perfectly solve equipment maintenance and operation problems, improve equipment efficiency, and reduce maintenance costs. All products are strictly inspected before leaving the factory, with reliable quality and stable performance, which is your trusted choice for mechanical parts procurement.