ZLYQC850 Series Oil Circuit Parts, AF Series Housing Components

1. Core Application Orientation & Segmented User Demand

1.1 Core Usage & Matched Host Equipment Model

This integrated batch of ZLYQ serial reducer structural parts, AF serial protective housing accessories, hydraulic circuit components and standard fasteners is exclusively manufactured for ZLYQC850 heavy-duty planetary reducer matched hydraulic power unit, applicable to 2800HP-3600HP onshore drawworks reducer assembly, offshore platform mud pump drive reducer and skid-mounted HPU lubrication control system. All parts comply with GB/T 19074 reducer component standard, ISO 6194 rotary oil seal specification, DIN 8187 roller chain industrial standard and API 614 lubrication system accessory certification. Production manufacturing workshops obtain ISO 9001 full-process quality audit and SGS hydraulic oil compatibility qualification, providing traceable OEM interchangeable spare parts for heavy rotating mechanical scenarios. Target segmented users include oilfield reducer overhaul contractors, drilling rig equipment procurement departments, HPU lubrication system integrators and mining heavy machinery after-sales maintenance teams. Core user demands cover zero-modification OEM replacement, stable circulating lubrication performance, high-temperature oil isolation durability, standardized thread interface matching, and centralized part stocking to eliminate oil circuit assembly deviation and reducer abnormal shutdown faults.

1.2 Pre-positioned Field Pain Points Solved By This Component Set

• Generic aftermarket oil retainers suffer lip aging cracking after 920 continuous operating hours under 75℃ reducer oil temperature, leading to gearbox external oil leakage

• Non-standard partition sleeves and output shafts cause axial runout over 0.4mm, aggravating gear meshing abrasion under full drilling hoisting load

• Ordinary red copper oil pipes generate fatigue fracture under cyclic hydraulic impact, breaking independent circulating oil spray lubrication of reducer gear sets

• Mismatched pressure sensors and double pressure valves trigger false lubrication pressure alarm, resulting in automatic reducer power-off protection during normal operation

2. Complete Product Technical Attribute Introduction

2.1 Full Product Portfolio Overview

This spare part lineup covers core reducer lubrication structural parts, hydraulic HPU accessories, protective cover assemblies, transmission components and standard connecting fasteners: ZLYQC850 serial oil retainers, partition sleeves, output shaft assemblies, oil separator units, customized red copper oil pipelines, AF serial front hood and tooth profile protective hood, XYZ-150ABSC oil pump assembly, ND5 double pressure valve, BSCYG9010-1.0 pressure sensor, standard reducing nipples, roller chains, sealing oil seals and adjusting shims. Exclusive third-party lab verified data: this standardized OEM part set extends ZLYQC850 reducer gear lubrication overhaul cycle by 1340 working hours, and reduces unplanned rig downtime caused by oil circuit failure by 9 working hours monthly compared with universal modified aftermarket parts.

2.2 Core Functional Description

All components cooperate to realize closed circulating lubrication, pressure monitoring, oil-gas separation, transmission power output, external dust isolation and pipeline pressure conversion for ZLYQC850 reducer HPU system. ZLYQ serial oil spray line assembly delivers quantitative lubricating oil to high-load gear meshing positions; oil separators separate mixed air from circulating hydraulic oil to stabilize oil cleanliness; precision output shaft assemblies transmit rated torque steadily; AF series hoods isolate drilling mud, sand and corrosive mist to protect tooth structures; ND5 double pressure valve and pressure sensor realize dual lubrication pressure interlock protection; copper pipes and reducing nippers build leak-proof integrated oil circulation loops; roller chains and shaft parts complete auxiliary power linkage transmission.

2.3 Optimized Structural Characteristics

Key load-bearing shafts adopt integral alloy carburizing quenching structure; ZLYQC oil retainers adopt double-lip reinforced rubber composite structure with anti-high-temperature additive; custom red copper pipes undergo integral annealing bending treatment without secondary welding joint; partition sleeves reserve micro oil storage groove for auxiliary lubrication; AF hoods adopt folded edge riveting anti-deformation structure; all threaded connecting parts adopt precision tapping with anti-loak thread coating. On-site practical design: unified assembly benchmark size for ZLYQC850 serial mating parts, laser etched part code and tolerance parameter, detachable filter plate structure for convenient oil circuit impurity cleaning.

2.4 Adaptable Working Conditions

Adapt long-term operating temperature ranging from -26℃ to 78℃; fit desert high-sand wind, coastal chloride salt fog, outdoor open-air heavy vibration oilfield working environments; stable operation under 1.0MPa rated lubrication pressure and 320kN reducer output torque; compatible with ISO VG220 extreme pressure gear oil and anti-wear circulating hydraulic oil; suitable for continuous 24-hour cyclic operation of fixed drilling drawworks reducer equipment.

2.5 Engineer Standardized Maintenance Rules & On-site Avoidance Tips

Replace oil retainers and oil seals every 900 continuous operating hours; clean oil separator internal filter mesh every 400 running hours; calibrate BSCYG9010-1.0 pressure sensor data quarterly; critical field avoidance tip: do not bend finished red copper pipes forcibly during installation, which will cause inner wall deformation, reduce oil flow rate and lead to local gear insufficient lubrication.

We supply the following spare parts:

3. Verified On-site Oilfield Maintenance Cases (4 Cases)

Case 1

Location: Ordos Onshore Drilling Site; Matched Device: ZLYQC850 Drawworks Planetary Reducer; Working Load: 260kN continuous output torque; Fault Data: Aging ordinary oil retainer outer edge peeling, gearbox lubricating oil external leakage; Repair Scheme: Install ZLYQC850-9AA-3S0 standard oil retainer + AF700201-01042009 PD100X130X12 oil seal; Post-repair Index: Gearbox static oil holding time reaches 42 days without leakage; Client Feedback: Eliminated frequent gear oil refilling work, stabilized reducer internal oil level.

Case 2

Location: Bohai Bay Offshore Drilling Platform; Matched Device: Offshore Anti-corrosion ZLYQC850 Reducer HPU; Working Load: 1.0MPa rated lubrication pressure; Fault Data: Original oil separator incomplete degassing, oil bubble block oil spray pipeline; Repair Scheme: Replace ZLYQC850-9AA-358 oil separator and matched ZLYQC0-HA-203 copper pipe; Post-repair Index: Circulating oil bubble content reduced to zero, gear spray lubrication flow restored standard value; Client Feedback: Solved offshore gear dry grinding wear fault under high humidity environment.

Case 28">Case 3

Location: Tarim Desert Heavy-load Drilling Yard; Matched Device: ZLYQI350 auxiliary drive reducer; Working Load: 180kN cyclic impact torque; Fault Data: Original output shaft meshing runout over 0.45mm, abnormal gear knocking noise; Repair Scheme: Replace ZLYQI350-9.4A-00 output shaft assembly and ring washer fastener; Post-repair Index: Shaft radial runout controlled below 0.15mm, gear meshing noise reduced obviously; Client Feedback: Adapted desert sand abrasion working condition, prolonged gear service life.

Case 4

Location: Zhanjiang Offshore Mud Pump Station; Matched Device: ZLYQC850 matched hydraulic lubrication unit; Working Load: 0.8MPa fluctuating oil circuit pressure; Fault Data: Damaged pressure sensor sent wrong low-pressure signal, reducer automatic stop; Repair Scheme: Install BSCYG9010-1.0 pressure sensor + ND5 double pressure valve assembly; Post-repair Index: Lubrication pressure monitoring error controlled within 0.03MPa, no false protection alarm; Client Feedback: Removed meaningless emergency shutdown, improved continuous drilling operating efficiency.

4. User Intent Targeted FAQ Table

5. Procurement Guidance & Closing Paragraph

This full set of ZLYQC850 series lubrication parts, AF series protective housing components, hydraulic monitoring parts and standard connecting fasteners meet unified oilfield reducer OEM manufacturing tolerance standards, attached with material metallurgical test reports, hydraulic compatibility inspection documents and installation dimension drawings for buyer technical review. Every batch of finished components completes high-temperature oil immersion test, vibration fatigue test and assembly matching inspection before outbound delivery, complying with global heavy-duty drilling mechanical accessory supply specifications. We support single-model bulk procurement, full ZLYQC850 reducer overhaul kit matching and non-standard copper pipe customized processing services. Professional rotating machinery engineering team provides model matching confirmation, on-site oil circuit fault diagnosis and targeted maintenance scheme guidance for procurement and field maintenance personnel. Reach out to confirm working condition parameter matching, combined part selection and full-cycle technical support for your reducer lubrication system overhaul and daily spare part reserve projects.