Excavator Quick Coupler

An excavator quick coupler is a device installed at the end of the excavator’s boom, used for rapid switching between attachments such as buckets, breakers, log grapples, rippers, and hydraulic shears. Its core value lies in achieving “one machine, multiple uses”—an excavator can complete attachment changes in minutes or even tens of seconds via the quick-connector, significantly expanding the equipment’s operating range and greatly improving construction efficiency. If you would like to learn more about the detailed parameters of the YG excavator quick coupler, comparisons of different model configurations, and the latest market prices, please contact us immediately for a professional one-on-one consultation.

Get a Free Quote

Excavator Quick Coupler Parameter

Item/Model	Unit	YGMINI	YG45	YG50/55	YG60/65	YG70/80	YG90	YG100/110
Suitable Excavator	ton	1.5-4	4-7	5-8	9-19	17-23	23-30	33-45
Weight	kg	25	50-60	80	120-130	280-290	420-430	450-580
Length	mm	388	534-545	600	765	924-944	983-1050	1006-1473
Height	mm	246	307	310	388	492	574	558-610
Width	mm	175	258-263	270-280	353-436	449-483	543-568	606-663
Pin-to-Pin Center Distance	mm	80-150	230-270	290-360	380-420	460-480	473-540	550-620
Forearm Open Width	mm	80-140	155-170	180-200	232-315	306-340	375-411	416-469
Retractable Distance of Oil Cylinder	mm	170-206	205-275	340-450	340-486	256-390	413-590	520-590
Top-to-Bottom Pin Distance	mm	159	195	195	220	275	300	360
Pin Diameter	mm	25-40	45-50	50-55	60-70	70-80	80-90	90-120
Working Pressure	bar	32-40	32-40	32-40	32-40	32-40	32-40	32-40
Working Flow	Ipm	10-20	10-20	10-20	10-20	10-20	10-20	10-20

Get a Free Quote

Working Principle of Excavator Quick Coupler

Excavator quick couplers are mainly divided into two categories based on their working principle: hydraulic and mechanical.

1. Hydraulic Quick-Connectors

These rely on the action of a hydraulic cylinder to fix and release a pin. When an attachment needs to be changed, the operator controls the hydraulic system from the cab. The cylinder retracts, and the hook-shaped pressure block moves from the locked position to the released position, disengaging the quick-connector from the attachment. After the desired attachment is changed, the hook-shaped pressure block aligns with the pin, the cylinder reopens, and the hook-shaped pressure block resets to lock the pin. The entire process, coordinated with external hydraulic lines and solenoid valves, can be completed by the operator without leaving the cab.

2. Mechanical Quick-Connect Connectors

Domestic manufacturers mainly offer two types: pin-type and screw-type. Taking the pin-type as an example, when changing attachments, first pull out the wedge clip, then tap the T-shaped buckle inwards to retract the pressure block and disengage the quick-connect connector from the attachment; when installing a new attachment, pull the T-shaped buckle backwards, and the wedge clip inserts into the T-shaped buckle to lock it in place. Mechanical quick-connect connectors do not require hydraulic lines, but manual operation of the locking device is necessary.

It is worth mentioning that some high-end YG products employ a normally closed safety design—the front locking hook structure remains mechanically locked at all times, ensuring that the workpiece will not fall off even if the locking hydraulic cylinder leaks and fails. This design elevates safety to a new level.

Get a Free Quote

YG Excavator Quick Coupler Brand Core Advantages

YG is a professional excavator quick coupler manufacturer with many years of experience in engineering machinery accessories. It’s an integrated factory encompassing forging, machining, heat treatment, whole-machine pressure testing, and foreign trade export. YG specializes in national standard thickened self-locking quick-change connectors, meeting EU CE safety standards, differentiating itself from generic cast iron products on the market. Five core differentiating advantages:

1. Material Upgrade: The entire machine is made of high-manganese alloy forged steel in one piece, not cast iron, making it fracture-resistant, impact-resistant, and crack-free even in extremely cold conditions down to -30℃;
2. Triple Self-Locking Protection: All hydraulic models come standard with mechanical buckle self-locking + oil circuit self-locking + power failure anti-disengagement triple locking, passing national construction machinery anti-disengagement testing;
3. Precise Compatibility: Original factory precise matching to the bucket distance and pin diameter of major excavator brands, requiring no modification to the oil circuit or boom, enabling non-destructive installation;
4. Universal Parts: All pins, oil seals, and springs are standardized and universal, readily available at offline stores, resulting in extremely low maintenance costs;
5. Dual warranty policy: 18-month warranty on the whole machine and 24-month warranty on the hydraulic mechanism, exceeding the industry standard of 12 months. Supports OEM, private label, and full container shipments for export.

Get a Free Quote

YG Excavator Quick Coupler Application Scenarios

1. Municipal Engineering: Road repair, pipeline excavation, and fencing construction; quick switching between bucket and breaker hammer reduces downtime.
2. Landscaping and Forestry: Mountain clearing, tree transplanting, and deep tillage; switching between grapples and rippers adapts to various terrains.
3. Demolition and Relocation: Old building demolition and wall dismantling; heavy-duty dual-action quick connector withstands high-frequency impacts and prevents attachment detachment.
4. Mining and River Management: Stone grabbing, river dredging, loading, and transportation; suitable for heavy-duty excavators operating in all weather conditions.
5. Equipment Rental: Universally compatible model for rental sites; one quick connector is compatible with multiple brands of excavators, reducing equipment modification costs.
6. OEM/ODM: YG supports customized sizes, logo labelling, and CE certification, suitable for bulk procurement of construction machinery in Southeast Asia and the Middle East.

Get a Free Quote

Excavator Quick Coupler FAQs

Q1: Does installing a quick connector require modifying the excavator?

A: No. Quick connectors are designed to be installed without modifying excavator components or disassembling the pin.

Q2: What is the lifespan of a quick connector?

A: Under normal use and regular maintenance, high-quality quick connectors can last for several years. YG products use reinforced structural designs and high-strength materials, resulting in stronger load-bearing capacity and a longer service life.

Q3: Are excavator quick couplers safe?

A: Reputable brand quick connectors are equipped with multiple safety devices, including hydraulic check valves and mechanical locking mechanisms. Some high-end products also feature a normally closed design, maintaining a mechanically locked state even in the event of hydraulic system failure. However, users still need to strictly follow operating procedures and perform regular inspections and maintenance.

Q4: How to choose the right excavator quick coupler model for your excavator?

A: When choosing, consider the following factors: excavator brand and tonnage, type and size of commonly used attachments, replacement frequency, budget, etc. It is recommended to refer to the product parameter table for key parameters such as compatible tonnage, pin diameter, and boom opening width for matching.

Get a Free Quote

Choose YG Manufacturer

As a professional manufacturer of excavator quick couplers, YG provides reliable quick-connect solutions to global customers with its full product line covering 1.5-45 tons, reinforced structural design, imported solenoid valve configuration, and comprehensive quality control system. Whether it’s the YGMINI or the larger YG models, YG quick connectors have won market recognition for their high-strength materials, precision design, and rigorous quality control. Don’t hesitate, click the button below to act now and get the most suitable customized solution for you!