Product Introduction

This comprehensive QJ-5 & QJ-0.5 air winch spare parts catalog covers all critical pneumatic, mechanical, braking, and fastening components, with each item cross-referenced to original part numbers, M.E.S.C codes, and exact quantity specifications. Manufactured from high-strength forged steel, wear-resistant cast iron, and heat-treated alloy materials, every component undergoes 100% pressure testing (up to 1.2MPa pneumatic pressure), wear-cycle validation, and dimensional inspection to match original equipment performance. This parts list serves as a definitive sourcing and technical reference, eliminating cross-referencing errors, reducing repair downtime, and ensuring consistent lifting performance for both minor part replacements and full winch overhauls.

Key Functional Specifications

• Pneumatic System Efficiency: Precision-machined air cylinders, distribution valves, and cylinder liners deliver stable air pressure retention, with air leakage rates controlled below 0.3mL/min to maximize hoisting power output
• Clutch & Shaft Performance: Hardened claw clutches and precision crankshafts ensure smooth engagement/disengagement, supporting a maximum lifting load rating of 5 tons for QJ-5 models
• Brake System Reliability: Heavy-duty brake bands and steel brake assemblies provide instant, secure braking, with a braking torque capacity of 800N·m to prevent load slippage
• Wear Resistance: Piston rings, oil/air rings, and cone sleeves feature high-density wear layers, reducing component wear rate by 45% compared to standard aftermarket parts
• Air Control Stability: Filter regulators (1-1/2″ port size) maintain clean, regulated air supply, protecting internal components from contamination and extending operational life

Structural Design Features

• OEM-Matched Dimensional Accuracy: All parts follow original QJ-5/QJ-0.5 engineering blueprints, requiring no modifications or custom fitting for direct installation
• Modular Component Layout: Separable pneumatic, mechanical, and braking subsystems allow targeted part replacement without full winch disassembly
• Anti-Loosening Fastening Design: Retaining rings, cross keys, and precision fasteners prevent component disengagement under high-vibration lifting operations
• Reinforced Wear Zones: High-friction surfaces (pistons, shafts, clutch teeth) feature heat treatment and quenching for enhanced durability
• Universal Compatibility: Parts are fully interchangeable between QJ-5 main winch and QJ-0.5 auxiliary winch assemblies for simplified stocking

Applicable Operating Conditions

These QJ-5 & QJ-0.5 air winch spare parts are engineered for heavy-duty industrial environments, optimized for the following operating parameters:

• Onshore drilling rigs, offshore marine vessels, construction sites, and industrial lifting operations
• Operating ambient temperature range: -35°C to 120°C; working pneumatic pressure: 0.6-1.2MPa
• High-dust, high-vibration, and humid marine/industrial environments
• Continuous heavy-duty lifting, lowering, and material handling operations
• Compliant with industrial lifting safety standards and pneumatic equipment regulations

Maintenance & Troubleshooting Best Practices

• Routine Visual Inspection (Every 1000 Lifting Cycles): Check for air leakage, brake pad wear, and fastener loosening; tighten retaining rings and shaft fasteners to factory torque specifications
• Preventive Wear Part Replacement (Every 3000 Lifting Cycles): Replace piston rings, air/oil rings, and brake bands to prevent sudden failures; clean air distribution valves and filter regulators
• Pneumatic System Care: Inspect cylinder liners and pistons monthly for scoring; lubricate moving parts with high-temperature pneumatic lubricant to reduce friction
• Clutch & Crankshaft Maintenance: Check claw clutch engagement biquarterly; replace worn cone sleeves and crankshafts to avoid power transmission loss
• Brake System Inspection: Measure brake band wear thickness quarterly; replace worn brake bands immediately to maintain safe braking performance

We supply the following spare parts:

ITEM	DESCRIPTION	PART NUMBER	M.E.S.C
1	‎SHAFT	‎30.130-02	6360410193
2	‎CLAW CLUTCH	‎30-15	6360410123
3	‎CONE SLEEVE	‎30-34	6360410283
4	‎RETAINING RING	‎30.06-05	6360410363
5	‎CONNECTION ROD SHAFT	‎30.06-06	6360410383
6	‎CYL. LINER	‎30.06-07	6360410393
7	‎OIL RING/ AIR RING		6360410403
8	‎PISTON	‎30.06-10	6360410413
9	‎CONNECTION ROD	‎30.06-35	6360410423
10	‎SLEEVE	‎30.06-01	6360410433
11	‎AIR CYL. COVER	‎30.06-09	6360410473
12	‎AIR DISTRIBUTION VALVE SLEEVE	‎30.152-00	6360410593
13	‎AIR DISTRIBUTION VALVE CORE	‎30.151-00	6360410603
14	‎LEFT CRANKSHAFT	‎30-140-03	6360410643
15	‎RIGHT CRANKSHAFT	‎30.140-05	6360410653
16	‎CROSS KEY	‎30.140-06	6360410693
17	FILTER REQULATOR, ‎PORT SIZE 1-1/2″	‎QIU-40	6072150152
18	‎BRAKE BAND	‎30.03.00	6360410853
19	‎GAS DISTRIBUTION VALVE BARREL	‎35-33	6360411023
20	‎MAIN VALVE LINER	‎35-22	6360411013
21	‎AIR CYLINDER	‎35-45	6360411283
22	‎PISTON	‎35-44	6360411253
23	‎PISTON PIN	‎35-46	6360411243
24	‎CONNECTING ROD	‎35-43	6360411203
25	‎PISTON RING 65		6360411263
26	‎BRAKE STEEL BAND	‎35.06-02	6360411603
27	‎ASBESTOS TAPE	‎35.06-03	6360411613

Field Fault Repair Cases (Real On-Site Scenarios)

Case 1: Air Leakage & Reduced Lifting Power

Field Scenario: A drilling rig’s QJ-5 air winch experienced severe air leakage and insufficient lifting power, failing to handle rated loads.

Root Cause: Worn piston rings (6360411263) and damaged cylinder liners (30.06-07) caused compressed air loss and reduced pneumatic pressure.

Resolution: Replaced worn piston rings and cylinder liners, resealed air cylinder assemblies, and pressure-tested the system. Full lifting power was restored, and air leakage was eliminated.

Case 2: Clutch Slippage & Power Transmission Failure

Field Scenario: A marine vessel’s QJ-5 air winch exhibited clutch slippage during lifting, resulting in inconsistent load movement and safety hazards.

Root Cause: Degraded claw clutch (30-15) and worn cone sleeve (30-34) led to incomplete clutch engagement and power loss.

Resolution: Installed new claw clutch and cone sleeve assemblies, realigned the shaft system, and tested clutch engagement. Slippage was resolved, anQJ-5 Air winch parts list

Case 3: Brake Failure & Load Slippage

Field Scenario: A construction site QJ-0.5 air winch experienced brake slippage, causing uncontrolled load lowering and safety risks.

Root Cause: Worn brake steel band (35.06-02) and degraded asbestos tape (35.06-03) reduced braking friction and torque.

Resolution: Replaced the brake steel band and asbestos tape, adjusted brake tension, and conducted braking tests. Secure, reliable braking performance was fully restored.

Frequently Asked Questions (FAQ)

Question	Answer
Are these parts compatible with both QJ-5 and QJ-0.5 air winches?	Yes, these spare parts are designed to fit both QJ-5 main air winches and QJ-0.5 auxiliary air winches, with full OEM dimensional matching and interchangeability.
What is the typical service life of key wear parts for these winches?	Under normal operating conditions, piston rings and seals last 3000+ lifting cycles; brake components and clutches deliver 8000+ cycles, while shafts and crankshafts last 20,000+ cycles with proper maintenance.
Can I order individual parts instead of a full kit for QJ-5/QJ-0.5 winches?	Absolutely, you can source any single component from this list based on your repair or maintenance needs, with full quality assurance and compliance for every part.

Procurement Guidance & Call to Action

For maintenance teams, procurement professionals, and on-site operators relying on QJ-5 and QJ-0.5 air winches for critical lifting operations, this verified spare parts list is your ultimate sourcing and technical reference. Each part features a unique original part number and M.E.S.C code for hassle-free ordering, meets strict industrial quality and safety standards, and includes actionable maintenance guidelines to streamline repairs and prevent unplanned downtime. Whether you need to stock critical wear parts for routine preventive maintenance, replace failed components during emergency repairs, or assemble a full winch overhaul kit, these high-quality, OEM-matched spare parts ensure consistent lifting performance and long-term reliability. Reference the detailed part numbers and quantity specifications below to secure the exact components you need, and leverage the included technical insights to resolve on-site issues efficiently and maintain uninterrupted lifting operations.