Product Introduction
This comprehensive spare parts catalog features direct-fit OEM replacement components for routine preventive maintenance, partial repairs, and full overhauls of DQ70 and DQ70BS top drive systems, covering all high-failure-rate critical parts: 315kW main drive motors, upper/lower motor bearings, oil seals, fan motors, driller’s consoles, frequency conversion blocks, power/control cables, circuit breakers, relays, control buttons, sensors (temperature, pressure, flow), encoders, explosion-proof solenoid valves, Siemens PLC modules, contactors, fuses, and inverter components. Unlike generic aftermarket alternatives, each component is built to the original DQ70/DQ70BS top drive design specifications, electrical ratings, and dimensional tolerances, ensuring seamless on-rig installation, zero compatibility errors, and reliable performance under the extreme conditions of oilfield drilling operations.
Functional Specifications
- Power & Drive Components: 315kW main motors (A/B set) deliver consistent rotary torque for heavy drilling; upper/lower precision bearings (ball/roller type) reduce friction and extend motor life; explosion-proof motors meet ATEX standards for hazardous drilling environments.
- Electrical Control System Parts: Siemens frequency converters, PLC modules (S7-300, ET200M), and interface blocks enable precise top drive speed/torque control; circuit breakers, relays, and fuses protect electrical circuits from overload and short circuits; control buttons, joysticks, and indicators facilitate safe rig operation.
- Cabling & Connection Parts: Heavy-duty power/control cables (including explosion-proof variants for DQ70BS) handle high-current loads and harsh rig conditions; DP plugs and PROFIBUS interface plugs ensure stable electrical connections.
- Sensing & Safety Components: PT-100 oil temperature sensors, pressure switches, and oil flow sensors monitor critical operating parameters; explosion-proof solenoid valves and lock detectors enhance rig safety and prevent equipment misuse.
- Sealing & Lubrication Parts: Precision-sized oil seals prevent lubricant leakage and mud contamination; lubricant pressure switches maintain proper lubrication pressure to protect rotating components.
Structural Characteristics
All DQ70/DQ70BS top drive spare parts feature rugged, oilfield-specific construction for maximum durability: bearings use premium NSK/SKF steel for high load capacity and wear resistance; oil seals use high-temperature elastomers to withstand drilling fluid exposure; electrical components feature IP65/ATEX-rated enclosures for dust/water protection and explosion-proof operation; cables use heavy-duty, abrasion-resistant jacketing to resist mud, oil, and mechanical damage. Components are designed for tool-friendly on-rig installation, minimizing repair time during critical drilling shifts and reducing costly non-productive rig time.
Applicable Operating Conditions
These spare parts are engineered to perform reliably in the extreme conditions of DQ70/DQ70BS top drive operation, including:
- Continuous heavy-load rotary drilling for onshore/offshore oil and gas exploration
- Exposure to drilling mud, rock dust, oil, and high-humidity rig site environments
- Extreme cyclic vibration and mechanical shock from top drive rotation
- Ambient temperatures ranging from -20°C (-4°F) to 65°C (149°F) across global drilling locations
- Compliance with API 7K, IEC 60947, and ATEX explosion-proof safety standards
Maintenance & Servicing Recommendations
- Pre-Installation Verification: Cross-reference OEM part numbers against DQ70/DQ70BS top drive technical manuals to confirm exact fitment and electrical ratings; inspect electrical parts for damage and clean all mating surfaces to remove mud, grease, and debris before assembly.
- Motor & Bearing Care: Inspect upper/lower motor bearings for wear every 2,000 drilling hours; replace worn bearings and re-lubricate with approved drilling-grade grease; check main motor windings for insulation damage and replace faulty motors immediately.
- Seal & Lubrication Maintenance: Replace oil seals during every major repair to prevent leaks; calibrate lubricant pressure and oil flow sensors quarterly; clear clogged lubrication lines to maintain consistent lubrication.
- Electrical System Checks: Tighten cable connections and inspect insulation every 1,500 hours; test circuit breakers, relays, and fuses for proper operation; replace worn contactors and solenoid valves to prevent electrical faults.
- Control & Sensor Calibration: Calibrate temperature/pressure sensors and encoders monthly; update PLC module settings to match top drive operating parameters; replace faulty joysticks and control buttons to maintain safe rig operation.
We supply the following spare parts:
| Комплектующие верхнего привода DQ-70 (бур.№110, 236, 253, 259, 264) | DQ-70 Top Drive Accessories (drill No. 110, 236, 253, 259, 264) | ||
| 1 | Основной двигатель “A” 315 кВт | Main engine “A” 315 kW | W0201315500A |
| 2 | Основной двигатель “В” 315 кВт | Main engine “B” 315 kW | W0201315500B |
| 3 | Подшипник электродвигателя верхний | Upper motor bearing | 222 P3GP3 (ball) |
| 4 | Подшипник электродвигателя нижний | Lower motor bearing | 222E NSK (roller) (SKF 2224 EC) |
| 5 | Сальник | Oil seal | 180х210х15 |
| 6 | Сальник электродвигателя | Electric motor seal | 2.2-120x146x12 |
| 7 | Сальник электродвигателя | Electric motor seal | CR-41185-USA |
| 8 | Двигатель вентилятора | Fan motor | W02025.52 |
| 9 | Пульт бурильщика (с экраном) | Driller’s console (with screen) | 900х300х600 |
| 10 | Блок преобразования частоты | Frequency conversion block | ACS800-04M-0610-7+D150+P901 |
| 11 | Cиловой кабель | Power cable | 313МСМ |
| 12 | Вспомогательный силовой кабель | Auxiliary power cable | 5х2,5+6х4+3х6 мм² |
| 13 | Контрольный кабель | Control cable | 60х1 мм² |
| 14 | Кабель управления / Кабель связи для пульта бурильщика | Control cable/Communication cable for driller’s console | 15 core |
| 15 | Соединительный кабель между электропитанием и трансформатором | Connection cable between power supply and transformer | 25 м |
| 16 | Прерыватель | Interrupter | C65N 3P D20A |
| 17 | Прерыватель | Interrupter | C65N 3P D6A |
| 18 | Прерыватель | Interrupter | C65N 1P C20A |
| 19 | Прерыватель | Interrupter | C65N 1P C10A |
| 20 | Прерыватель | Interrupter | C65N 2P C20A |
| 21 | Прерыватель | Interrupter | C65N 2P C10A |
| 22 | Промежуточное реле | Intermediate relay | RSB2A080BD |
| 23 | Гнездо промежуточного реле | Intermediate relay socket | RSZE1S48M |
| 24 | Защитный блок реле | Relay protection block | RZM031BN |
| 25 | Защитный зажим реле | Relay protection terminal | RSZR215 |
| 26 | Кнопка (красная) | Button (red) | XB2BA41C |
| 27 | Кнопка с круглой головкой | Button with round head | XB2BS542C |
| 28 | Трёхпозиционная самозажимная ручка | Three-position self-clamping handle | XB2BD33C |
| 29 | Трёхпозиционная ручка с самовозвратом | Three-position handle with self-return | XB2BD53c |
| 30 | Трёхпозиционная самовосстанавливающаяся ручка | Three-position self-healing handle | XB2BD83C |
| 31 | Двухпозиционная самозажимная ручка | Two-position self-clamping handle | XB2BD21C |
| 32 | Индикатор | Indicator | XB2-BVB3LC 24V зелёный |
| 33 | Индикатор | Indicator | XB2-BVB4LC 24V красный |
| 34 | Потенциометр с ручкой | Potentiometer with knob | WXJ-5-22 3.3K |
| 35 | Вспомогательный контакт | Auxiliary Contact | ZB2BE101/102 |
| 36 | Потенциометр для ограничения момента | Potentiometer for torque limitation | WX501-2-223.3K |
| 37 | Двухпозиционная самовосстанавливающаяся ручка | Two-position self-healing handle | WX2BD45c |
| 38 | Кнопка | Button | XB2BA31C |
| 39 | DP разъёма | DP plug | 6ES7-972 |
| 40 | Кабель | Cable | 3×2.5 mm² |
| 41 | Включатель давления смазки | Lubricant pressure switch | J120-191 |
| 42 | Включатель давления ветра | Wind pressure switch | 1950-0-2F |
| 43 | Кодер | Coder | DC01011250 |
| 44 | Блок питания POWER SUPPLY BOARD APOW-01C | Power supply POWER SUPPLY BOARD APOW-01C | 64605666; В 3180657 ЕЕ |
| 45 | Блок интерфейса | Interface block | ЕТ200М |
| 46 | Поплавковый выключатель уровня жидкости | Liquid level float switch | YW01150 |
| 47 | Датчик температуры масла | Oil temperature sensor | PT-100 |
| 48 | Датчик потока масла | Oil flow sensor | SIKA CHS20M01181I41/ |
| 49 | Предохранитель | Fuse | 3NE3 337-9; VDE 0636; IEC/EN 60269; SITOR 1000 A; 900 Va.c.; 50 kA |
| 50 | Предохранитель | Fuse | 3NE3 337-9; VDE 0636; IEC/EN 60269; SITOR 900 A; 900 Va.c.; 50 kA |
| 51 | Предохранитель | Fuse | 3NE3 337-9; VDE 0636; IEC/EN 60269; SITOR 710 A; 900 Va.c.; 50 kA |
| 52 | Транзистор для инвертора | Transistor for inverter | IGBT 6MB1450U-170/AGDR-72C |
| 53 | Плата транзистора | Transistor board | AGDR-72C |
| 54 | Гибридный запускатель питания | Hybrid power starter | NRED-61-F |
| 55 | Силовой контактор | Power contactor | ABB AF 460-30 |
| 56 | Автоматический выключатель | Automatic switch | MT12 N2; 1250A; GB 14048.2 |
| 57 | Автоматический выключатель | Automatic switch | NSH 160N; 125A |
| 58 | Магнитный пускатель | Magnetic switch | LC1 D12…C |
| 59 | Субмодуль инвертора | Inverter submodule | TYPE: AIMT-02C |
| 60 | Выпрямительный блок | Rectifier block | Powerblok 1P 6SL3353-1AG41-8DA1 |
| 61 | Джойстик. | Joystick. | SENTOP S50JCK-XI-11R1G-04+4803P-V2-3 |
| 62 | Частотный преобразователь | Частотный преобразователь | 1P 6SL3720-1TG41-0AA3-Z K08+K50+K90+K94+M87+M90 |
| 63 | Инвертор | Frequency inverter | SIEMENS Powerblock 1p 6SL 3352 1AG41 OFA1; ZYDO2367990019 |
| 64 | Энкодер | Encoder | MODEL-M6; OPTION CODE-4S1HX51ZTZ00; SER.NO.-6525; REV-W; PPR-1024; YDC-5-24; mA-100. |
| Комплектующие верхнего привода DQ-70BS (бур.№260,265,283) | Top drive components DQ-70BS (drill no. 260,265,283) | ||
| 65 | Основной двигатель “A” | Main engine “A” | 9702011000 |
| 66 | Основной двигатель “В” | Main engine “B” | 9702011000 |
| 67 | Охлаждающий вентилятор | Cooling fan | 3101030170 |
| 68 | Cиловой кабель электропитания | Power supply cable | 9704019300 |
| 69 | Выходящий взрывозащищённый кабель с вращательного момента пульта бурильщика (Х102) | Outgoing explosion-proof cable from the rotational moment of the driller’s console (X102) | 9704029301 |
| 70 | Взрывозащищённый кабель электропитания гидравлического источника | Explosion-proof hydraulic power supply cable | 9704059104 |
| 71 | Взрывозащищённый кабель с цифровым сигналом гидравлического источника (Х101) | Explosion-proof cable with digital signal of hydraulic source (X101) | 9704059204 |
| 72 | Взрывозащищённый кабель с аналоговым сигналом гидравлического источника (Х102) | Explosion-proof cable with analogue hydraulic signal (X102) | 9704059304 |
| 73 | Взрывозащищённый кабель с ручным | Explosion-proof cable with manual | 9704029104 |
| 74 | Управляющий взрывозащищённый кабель пульта бурильщика (Х101) | Explosion-proof control cable for the driller’s console (X101) | 9704029204 |
| 75 | Связной взрывозащищённый кабель пульта бурильщика (Х200) | Explosion-proof communication cable for driller’s console (X200) | 9704029404 |
| 76 | Взрывобезопасный двигатель | Explosion-proof engine | 3101030310 |
| 77 | Взрывобезопасный двигатель | Explosion-proof engine | 3101030320 |
| 78 | Силовой кабель | Power cable | YCW 450/750 1×185 |
| 79 | Силовой кабель | Power cable | YCW 450/750 1×240 |
| 80 | Силовой кабель | Power cable | YCW 1×271 мм; 2000V |
| 81 | Наконечник | Tip | 185 мм |
| 82 | Наконечник | Tip | 240 мм |
| 83 | Наконечник | Tip | 271 мм |
| 84 | CPU электропитания и CPU 315-2DP | Power supply CPU and CPU 315-2DP | Siemens S7 – 300 |
| 85 | Интерфейсный штепсель | Interface plug | PROFIBUS |
| 86 | Блок модуль | Block module | SIMATIC ET200M IM 153-1 153-1AA03-0XB0 |
| 87 | Блок модуль | Block module | SIMATIC S7; Ip 6ES7 321-1BL00-0AA0 |
| 88 | Блок модуль | Block module | SIMATIC S7 Ip 6ES7 322-1BL00-0AA0 S C-RND21992 |
| 89 | Блок модуль | Block module | SIMATIC S7 Ip 6ES7 331-7KF02-0AB0 S C-ROM35375 |
| 90 | Блок модуль | Block module | SIMATIC S7 Ip 6ES7 338-4BC01-0AB0 S C-D6TG3829 |
| 91 | Модуль разъёма | Connector module | ET200pro |
| 92 | Модуль волоконно-оптической линии | Fiber Optic Line Module | OLM |
| 93 | Ретранслятор | Repeater | RPT1 REPEATER |
| 94 | Модуль контроля | Control module | CU320-2DP |
| 95 | Операционная панель | Operation panel | АОР30 |
| 96 | Модуль HUB SIEMENS | SIEMENS HUB module | DMC20 |
| 97 | Модуль ввода главного источника тока | Main current source input module | LSM |
| 98 | Модуль источника тока | Power Source Module | BLM |
| 99 | Модуль электродвигателя 1, 2 | Electric motor module 1, 2 | MoM1, MoM2 |
| 100 | Тормозной модуль | Braking module | 3110000200 |
| 101 | Датчик температуры | temperature sensor | 3403000140 |
| 102 | Датчик давления | Pressure sensor | 3808000120 |
| 103 | Детектор запирания | Lock detector | 3301010038 |
| 104 | Взрывобезопасный электромагнитный клапан (типа С) | Explosion-proof solenoid valve (Type C) | 5216000670 |
| 105 | Взрывобезопасный электромагнитный клапан (типа Y) | Explosion-proof solenoid valve (Y type) | 5126000562 |
| 106 | Взрывобезопасный электромагнитный коммутирующий клапан (типа J) | Explosion-proof Solenoid Switching Valve (J Type) | 5126000560 |
| 107 | Взрывобезопасный электромагнитный блокирующий клапан накопительного типа | Explosion-proof accumulative type solenoid blocking valve | 5126000540 |
| 108 | Предохранитель | Fuse | 3301011490 |
| 109 | Предохранитель | Fuse | 3399100870 |
| 110 | Предохранитель | Fuse | 3408030181 |
| 111 | Предохранитель | Fuse | 3408030140 |
| 112 | Реле | Relay | 3304010470 |
| 113 | Реле | Relay | 3304010460 |
| 114 | Реле | Relay | 3304010450 |
| 115 | Реле | Relay | 3304000400 |
| 116 | Реле времени | Time relay | 3304010490 |
| 117 | Электромагнитный пускатель | Electromagnetic starter | 3TF51; IEC 60947; Uk-380V; GB 14048; VDE 0660; 160A; 690V~ |
| 118 | Электромагнитный пускатель | Electromagnetic starter | LC-1; D80 11; Uk-110V |
| 119 | Электромагнитный пускатель | Electromagnetic starter | LS1-D32…C; 50A; Uk-380V; GB/T14048.1 |
| 120 | Автоматический выключатель | Automatic switch | SACE T6N 800; IEC/EN 60947-2 GB 14048.2 |
| 121 | Автоматический выключатель | Automatic switch | NS250H Ui 750V; IEC/EN 60947-2 |
| 122 | Автоматический выключатель | Automatic switch | HSM1=160H; GB14048.2-94 |
| 123 | Одноконтактные лампы. | Single contact lamps. | YS40RR |
| 124 | Ртутные лампы. | Mercury lamps. | ДРЛ-400 с цоколем Е-40 (or analog) |
| 125 | Металлогалогенные лампы. | Metal halide lamps. | JLZ400 KN U4K-PS (ДРИ Е-40 400Ве) |
| 126 | Импульсно зажигательное устройство (ИЗУ) | Pulse ignition device | TRIDONIC. ATCO; Ignitor ZRM 4.5-ES/C 220-240V; 50-60 Hz (or analog) |
| 127 | Дроссель | Throttle | LN400F2LP 400W SON 4,6A LAMP tw 140 Hz (or analog) |
On-Rig Top Drive Fault Repair Cases
Case 1: Main Motor Bearing Failure & Rotary Lockup
A DQ70 top drive experienced sudden rotary lockup during drilling, caused by a seized lower roller bearing (222E NSK) due to inadequate lubrication and mud contamination. The failure halted drilling operations and risked damage to the 315kW main motor. Replacing the worn bearing and damaged oil seal, then re-lubricating the motor assembly, restored smooth rotation and full drilling torque.
Case 2: Explosion-Proof Cable Short & Control System Shutdown
A DQ70BS top drive control system shut down unexpectedly due to a short circuit in an explosion-proof driller’s console cable (9704029204). The damaged cable insulation caused electrical interference and triggered safety interlocks, stopping drilling. Replacing the faulty explosion-proof control cable and testing the circuit restored full control system functionality.Case 3: Oil Temperature Sensor Fault & Overheating ShutdownA DQ70 top drive initiated an emergency shutdown due to false high oil temperature readings from a failed PT-100 sensor. The faulty sensor disrupted temperature monitoring and risked undetected overheating. Installing a new OEM temperature sensor and calibrating the control module resolved the false readings and prevented unnecessary shutdowns.
Frequently Asked Questions (FAQ)
| Question | Answer |
| Are these parts compatible with both DQ70 and DQ70BS top drives? | Parts are labeled for model-specific fitment; standard DQ70 parts and DQ70BS exclusive explosion-proof components are clearly marked to match your rig’s top drive serial number. |
| Do electrical parts meet ATEX explosion-proof standards for rigs? | Yes, all DQ70BS electrical components and select DQ70 safety parts comply with ATEX explosion-proof regulations and IEC 60947 electrical safety standards for hazardous drilling environments. |
| What is the recommended bearing replacement interval? | For heavy drilling use, replace upper/lower motor bearings every 4,000 drilling hours, or immediately if noise, vibration, or lubrication leaks are detected to prevent motor damage. |
Procurement Guidance & Closing Statement
For drilling rig maintenance teams, oilfield procurement managers, and top drive service specialists responsible for keeping DQ70 and DQ70BS top drives operational in high-demand drilling environments, this spare parts catalog provides a fully OEM-compliant, quality-assured sourcing solution for all critical top drive components. Backed by strict oilfield manufacturing standards and exact OEM part number matching, these components eliminate compatibility risks, streamline on-rig repair workflows, and provide a clear technical benchmark to resolve top drive faults quickly and effectively. Whether stocking for routine preventive maintenance, emergency motor/electrical repairs, or planned full top drive overhauls, these model-specific spare parts ensure adherence to API and global drilling safety standards, minimize costly non-productive rig time, and preserve the long-term service life of your DQ70/DQ70BS top drive equipment. Secure the precise motors, bearings, cables, sensors, and control components your top drive needs to maintain reliable, uninterrupted drilling operations across all oilfield conditions.
