1/2″ Threaded Quick Hydraulic Coupler M24x1.5 for Combine Harvester (Male/Female/Set)

Product Features Single male hydraulic coupler, as the  active connection end of hydraulic systems. Trivalent zinc surface finish provides excellent corrosion and rust resistance, adapting to the dusty, humid field working environment of combine harvesters. Threaded design ensures tight sealing when screwed with female coupler (Model 5168).

Application Scenarios Directly connect to the male port of combine harvester hydraulic pipelines; ideal for  replacement of damaged original male couplers on harvesters. Easy to install with direct screw connection, no additional adjustment required.

Single female hydraulic coupler, the  passive connection end exclusive for Model 5167. Built-in  NBR nitrile rubber seal and  PTFE anti-extrusion ring prevent seal extrusion and hydraulic oil leakage under high pressure (250 bar) working conditions. Thread locking structure avoids loosening during harvester operation.

Application Scenarios Connect to the female port of combine harvester hydraulic pipelines; suitable for  replacing aged or leaky original female couplers. Compatible with all combine harvesters with M24 x 1.5 mm threaded hydraulic pipelines, strong universality.

Universal Standard Operation】

Simple Connection & Disconnection

Connection: Align the male coupler’s positioning key with the female coupler’s key slot, screw the male part clockwise into the female part until the thread is fully locked—no additional tools required, manual operation is sufficient for firm connection.

1. Disconnection: Rotate the male part counterclockwise to unscrew, direct separation without hydraulic oil splashing (internal seal structure effectively blocks oil leakage during disassembly).

2. Post-Installation Check: After screwing, gently pull the two ends to confirm no loosening; the connection surface fits tightly without gaps, ensuring stable hydraulic transmission under harvester vibration.

Universal Applicability

• Complies with ISO 7241-1 Series A international standard, fully compatible with mainstream combine harvester brands and models with M24x1.5 mm threaded hydraulic pipelines.

• Adapt to complex field working conditions: anti-vibration, anti-dust, anti-splashing water, no performance attenuation during long-term continuous operation of harvesters.

【High-Grade Material & Core Advantages】

Main Body Material: High-Strength Carbon Steel

• Forged from high-quality carbon steel, integrated molding process, no welding seams, high structural strength and pressure resistance (bear 250 bar rated working pressure, far exceeding the daily hydraulic pressure of combine harvesters).

• Precision machining of threads and positioning keys, smooth surface without burrs, accurate fit, avoiding thread slipping and positioning deviation caused by rough machining.

Surface Treatment: Trivalent Zinc Plating

• Adopt professional trivalent zinc plating finish, 8-12μm plating thickness, uniform and compact coating, strong adhesion.

• Superior anti-corrosion and anti-rust performance: resist oxidation and rust in humid, muddy, and chemical fertilizer-polluted field environments, service life is 3× that of ordinary galvanized products; no peeling or falling off during installation and disassembly.

Sealing System: NBR Seal + PTFE Anti-Extrusion Ring

NBR (Nitrile Rubber) Seal

• High-quality oil-resistant nitrile rubber, specially formulated for hydraulic systems, excellent oil resistance and aging resistance, no hardening or cracking at -25°C ~ +100°C operating temperature.

• Close fit with the joint inner wall, zero hydraulic oil leakage, ensuring the normal operation of the harvester's hydraulic lifting, steering and other core systems.

PTFE (Polytetrafluoroethylene) Anti-Extrusion Ring

• High-hardness PTFE material, installed on both sides of the NBR seal, effectively prevent the seal from being extruded into the thread gap under high pressure.

• Avoid seal damage and oil leakage caused by high hydraulic pressure, extend the service life of the sealing system by more than 50%.

Anti-Loosening Design: Integrated Thread Locking Structure

• Built-in thread locking anti-slip structure, the thread has a precise self-locking effect after screwing, effectively resisting the strong vibration of harvesters during high-speed operation and walking on uneven roads.

• No additional locking nuts or gaskets required, avoiding loose connection and oil leakage caused by vibration, ensuring long-term stable operation of the hydraulic system.