Hana Rig JC28/11D Drawworks Transmission, Clutch & Sealing System

1. Product Overview & Core Operational Value

1.1 Adaptable Equipment & Target User Demands

This full range of precision mechanical spare parts is professionally manufactured and supplied exclusively for Hana Rig JC28/11D series drawworks systems, fully compatible with supporting JC32A, JC32B and JC21A matched drum, brake and transmission assemblies. Covering shaft sleeves, drive keys, bearings, lip oil seals, clutch assemblies, sprocket wheels, flange connectors and torque sensors, these components precisely meet the refined overhaul, daily maintenance, worn part replacement and system calibration needs of onshore drilling contractors, drawwork mechanical engineers and field maintenance teams. The product lineup targets frequent field pain points including transmission clearance deviation, clutch power disconnection, drum oil leakage, pipeline connection failure and bearing abnormal vibration during long-cycle heavy-load drilling operations.

1.2 Authoritative Standards & Exclusive Field Verified Data

All finished components comply with GB/T276-1994, GB/T288-1994 and GB13871-1992 national mechanical industry standards, fully matching the original assembly parameters of Hana Rig JC28/11D drawworks. Validated by 4000-hour continuous field endurance testing and third-party bench calibration, customized lip oil seals maintain zero leakage under rated operating pressure for 3300 consecutive working hours; 22226CC/W33 and 6238 series bearings stabilize rotary operation without excessive clearance abrasion through 3600 hours of cyclic heavy-load operation; ATD324H and ATD330H clutches deliver stable power engagement without slipping under sustained torque impact. Every part undergoes dimensional tolerance detection, pressure resistance testing and fatigue screening to form standardized production procurement and on-site fault-solving technical benchmarks.

2. Product Introduction & Functional Description

2.1 Core Product Composition

This integrated spare parts portfolio covers four core functional modules: Transmission system components including multi-spec shaft sleeves, drive keys, adjusting shims, universal drive shafts and sprocket wheel assemblies; load-bearing and sealing parts consisting of 22226CC/W33, 6238 and 6232 standard bearings, bearing covers, bearing caps and multi-model lip oil seals; power clutch assemblies with ATD324H and ATD330H air tube clutches, clutch gear rings and wheel spoke rib assemblies; auxiliary control and connection parts including rigid water pipes, copper pipelines, flange sets, troughway terminal connectors, compound gaskets, oil throwers, oil buffer protecting caps and 0–1000 PSI mechanical torque sensors.

2.2 Practical Working Functions

Shaft sleeves, drive keys and adjusting shims calibrate drawworks transmission assembly clearance, ensuring stable power output and eliminating rotary jitter. High-precision bearings support long-term heavy-load rotation of drawworks main shaft and drum, reducing friction loss and shaft deflection. Lip oil seals and compound gaskets block internal lubricating oil leakage and external dust intrusion to protect internal precision components. Air tube clutches and gear rings realize sensitive power connection and disconnection, adapting to frequent start-stop working conditions. Pipeline connectors and flanges ensure stable sealing of water and gas circuits, while torque sensors provide accurate real-time load data for operational safety monitoring.

3. Structural Features & Applicable Working Conditions

3.1 Unique Structural Advantages

All transmission shaft sleeves adopt one-piece precision machining with uniform wall thickness, effectively solving eccentric wear and loose assembly defects of traditional accessories. Lip oil seals feature composite rubber structure with high temperature and wear resistance, adapting to continuous heat generation during drawworks operation. W33 series bearings are equipped with built-in oil grooves to realize circulating lubrication and extend service life. Clutch gear rings adopt high-frequency quenching process to improve surface hardness and anti-fatigue performance. Standardized flange and connector accessories achieve zero assembly gap, avoiding pipeline medium leakage caused by mismatched interfaces.

3.2 Adaptable Working Scenarios

This series of spare parts is customized for Hana Rig JC28/11D drawworks, adapting to conventional onshore oil and gas exploitation, medium-depth well continuous drilling and frequent heavy-load start-stop operation. Components stably operate in ambient temperatures ranging from -40℃ to 85℃, resisting field dust accumulation, mud erosion and persistent mechanical vibration. All parts support 24-hour uninterrupted cyclic operation of drawworks transmission, power clutch and sealing protection systems.

4. Engineer Practical Maintenance Suggestions

Summarized from front-line oilfield overhaul experience, standardized maintenance effectively reduces system failure frequency: Replace lip oil seals and compound gaskets every 700 working hours to prevent aging leakage; inspect bearing lubrication status and supplement grease every 500 working hours to avoid dry wear; calibrate clutch engagement clearance and torque sensor data accuracy quarterly; check sprocket tension and key fastening status after each heavy-load drilling cycle. Avoid mixed installation of non-standard sealing parts and bearings; conduct full rotary debugging and pressure holding testing after component replacement; do not disassemble clutch gear components without professional calibration to prevent meshing deviation.

We supply the following spare parts:

5. On-Site Field Maintenance Cases

Case 1: Central Asia Hana Oilfield JC28/11D Oil Leakage Fault

Location: Central Asia Hana Onshore Drilling Site; Equipment Model: JC28/11D Drawworks Drum System; Working Load: 250-ton cyclic drilling load; Fault Data: Aging B220X250X15 lip seal caused continuous drum oil leakage; Repair Plan: Replace matched drum lip oil seal and compound gasket; Restoration Index: Drum sealing performance fully recovered with zero oil leakage for long-term operation; Customer Feedback: Eliminated lubricating oil waste and avoided internal component abrasion failure.

Case 2: Tarim Oilfield JC28/11D Transmission Jitter Fault

Location: Tarim Medium-Deep Well Drilling Site; Equipment Model: JC28/11D Drawworks Transmission System; Working Load: 265-ton continuous operation load; Fault Data: Worn shaft sleeve and enlarged assembly clearance caused rotary jitter; Repair Plan: Replace standard shaft sleeve and adjusting shim set; Restoration Index: Transmission rotation smooth with zero jitter and stable power output; Customer Feedback: Improved drilling operation stability and reduced equipment vibration noise.

Case 3: Ordos Oilfield JC28/11D Clutch Slipping Fault

Location: Ordos Conventional Oilfield Site; Equipment Model: ATD330H Drawworks Air Tube Clutch; Working Load: 240-ton heavy hoisting load; Fault Data: Aging clutch gear ring caused insufficient meshing and power slipping; Repair Plan: Replace clutch gear ring and reset engagement clearance; Restoration Index: Clutch engagement firm with zero slipping and stable torque transmission; Customer Feedback: Solved intermittent power loss faults and improved operational efficiency.

Case 4: Xinjiang Oilfield JC28/11D Data Monitoring Fault

Location: Xinjiang Heavy-Duty Drilling Site; Equipment Model: SK-8N02 Mechanical Torque Sensor; Working Load: 235-ton stable drilling load; Fault Data: Long-term vibration caused sensor data deviation and delayed response; Repair Plan: Replace torque sensor and calibrate system data; Restoration Index: Real-time torque data accurate and response sensitive within standard range; Customer Feedback: Restored drawworks load safety monitoring capability completely.

6. Product FAQ

7. Technical & Procurement Guidance

This full range of Hana Rig JC28/11D drawworks spare parts is manufactured under strict industrial quality control protocols, equipped with complete factory dimensional inspection reports, performance test certificates and material quality verification files, providing standardized procurement screening standards and professional on-site technical troubleshooting references for drilling engineering teams. Each component is purpose-built to resolve common field faults including transmission jitter, clutch slipping, drum oil leakage and monitoring data deviation, effectively lowering unplanned equipment downtime and daily maintenance costs. Featuring precise original equipment compatibility, high wear resistance, pressure resistance and harsh environment adaptability, these modular spare parts support full-cycle refined overhaul, daily calibration and emergency repair of JC28/11D drawworks systems. Professional standardized manufacturing processes ensure consistent quality and assembly accuracy, allowing engineering teams to select targeted accessories according to actual equipment operating status and field working conditions to sustain long-term stable and efficient operation of drilling rig drawworks systems.