You are on a job site. You need to switch from a digging bucket to a breaker hammer. Normally, you spend 20 minutes banging out pins, wrestling heavy metal, and risking crushed fingers. Now imagine doing it in 10 seconds from your cab – without getting off the machine.
That is what an excavator quick coupler does. It is a hydraulic or mechanical device that attaches to your excavator’s arm. It holds any compatible attachment (bucket, breaker, grapple, auger, etc.) with locking pins or jaws. You change tools in seconds, not hours.
YG Machinery offers quick couplers for excavators from 1.5 tons up to 45 tons. Models include YGMINI (1.5-4t), YG45 (4-7t), YG50/55 (5-8t), and up to YG100/110 (33-45t). They use imported solenoid valves and custom cylinders for reliability.
YG Excavator Quick Coupler – Key Parameters By Model
Here are the specifications for each model. Choose based on your excavator size.
| 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 |
Why Use An Excavator Quick Coupler?
Without a quick coupler, changing attachments is a manual, dangerous job. You need tools, hammers, and two people. With an excavator quick coupler, you gain:
1. Massive time savings – Change from bucket to breaker in under 30 seconds (hydraulic) or 2 minutes (mechanical). A crew that changes attachments 5 times a day saves over an hour.
2. Operator safety – No more standing under a suspended attachment. No more hammering pins with a sledge. The operator stays in the cab, uses hydraulic controls to lock/unlock.
3. More jobs, more profit – You can bid on jobs that require multiple attachments (digging, breaking, sorting) because you can switch fast. No need to rent multiple machines.
4. Compatible with most brands – YG quick couplers work with all major excavator brands as long as the pin spacing matches.
5. Long-life components – imported solenoid valves and custom‑built cylinders for durability.
How Does An Excavator Quick Coupler Work?
There are two main types: hydraulic and mechanical. The YG models with hydraulic cylinders (most of them) work as follows:
- The coupler has a fixed hook at the front and a movable locking pin or wedge at the rear, operated by a hydraulic cylinder.
- The operator positions the coupler so the front pin of the attachment sits in the front hook.
- Then the operator activates the hydraulic control in the cab. Oil flows to the coupler‘s cylinder, which pushes the rear locking pin forward, gripping the attachment’s rear pin.
- A safety check valve prevents accidental release if the hydraulic pressure drops.
- To release, the operator reverses the hydraulic flow, retracting the locking pin.
Mechanical quick couplers (cheaper, manual) use a lever or a spring‑loaded pin. You need to get off the machine to engage/disengage.
Hydraulic vs Mechanical Quick Coupler – Which Is Better?
Here is a simple comparison.
| Feature | Hydraulic Quick Coupler | Mechanical Quick Coupler |
| Operation | From cab, push button | Manual, must exit cab |
| Change time | 10-30 seconds | 2-5 minutes |
| Safety | High (operator stays in cab) | Lower (exposed to moving parts) |
| Cost | Higher (adds hydraulic circuit) | Lower |
| Reliability | Excellent with good seals | Very high (no hydraulics to leak) |
| Best for | High volume, frequent changes | Occasional changes, budget conscious |
For most professional contractors, a hydraulic excavator quick coupler pays for itself in labour savings within months. YG‘s hydraulic couplers use imported solenoid valves and custom cylinders – reliable for daily use.
Safe Use Tips
- Always visually inspect that the locking pin is fully engaged before lifting the attachment.
- Do not exceed the coupler‘s rated working load. The coupler’s capacity matches the excavator‘s lift capacity.
- Keep the coupler’s moving parts greased.
- Replace worn pins or bushings immediately.
- Never modify a coupler – use only YG replacement parts.
Upgrade Your Excavator With A YG Quick Coupler
An excavator quick coupler is one of the most cost‑effective attachments you can buy. It turns your single‑purpose machine into a multi‑tool platform. YG offers couplers for excavators from 1.5 to 45 tons, with precise fitment for your pin sizes. Hydraulic models let you change tools in seconds from the cab – safer and faster. Mechanical models are budget‑friendly for less frequent changes. All YG couplers use imported solenoid valves (hydraulic) and custom cylinders for long life.
Contact YG with your excavator make, model, and attachment pin dimensions. They will recommend the right excavator quick coupler for sale and provide a quote. Stop wasting time – start switching.
Frequently Asked Questions
It is a device that lets you change attachments without using hand tools. It stays on the excavator arm. Each attachment has the same pin spacing. The coupler grips the attachment‘s pins.
Yes, as long as the pin-to-pin distance and pin diameter match. YG couplers are designed to be universal for each size class.
Yes, when used correctly. YG couplers have safety check valves that prevent unlocking if hydraulic pressure fails. Always do a visual check before lifting.
If you are a competent mechanic with excavator experience, yes. But professional installation is recommended to ensure hydraulic connections are leak‑free and pin clearances are correct.