The excavator attachment adapter (Quick Hitch Coupler) is the core component that connects the excavator to different attachments (such as buckets, breakers, and hydraulic shears) and achieves fast switching through standardized interfaces. Common types include:
- Pin Grabber Coupler: Locking is completed by grabbing the fixing pin of the attachment, suitable for heavy-duty conditions;
- Mechanical Quick Coupler: Manual or hydraulic drive locking using the lever principle, low cost;
- Excavator Couplers: Suitable for excavators of multiple brands, strong compatibility.
This type of equipment replaces traditional welding or bolt connections, shortening the attachment replacement time from 1 hour to within 5 minutes, greatly improving work efficiency.
Quick hitch coupler parameters
| 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 |
What are The functions of the pin grabber coupler?
- Quickly switch attachments: Quick Hitch Coupler allows the driver to switch buckets, drills, and other tools in the cab with one click without manually removing bolts;
- Enhanced safety: Pin Grabber Coupler adopts a double locking design to prevent attachments from accidentally falling off under high loads;
- Reduce maintenance costs: Excavator Couplers reduce welding modifications to the excavator arm and extend the life of the equipment;
- Expand versatility: Through the Mechanical Quick Coupler, an excavator can be compatible with dozens of attachments to meet the needs of multiple scenarios such as digging, crushing, and drilling.
5 Advantages of using mechanical quick coupler
- 300% efficiency improvement: Quick Hitch Coupler reduces the time for fitting replacement from hours to minutes;
- Cost savings: Reduce the cost of renting multiple special equipment, The Pin Grabber Coupler can be adapted to third-party fittings.
- Enhanced safety: Mechanical locking + hydraulic insurance double protection. Excavator Couplers have passed the EU CE explosion-proof certification;
- Excellent durability: Surface galvanizing or spraying wear-resistant coating, Mechanical Quick Coupler has a service life of more than 5 years under saline-alkali conditions;
- Environmental compatibility: It supports electric excavator modification and reduces carbon emissions from diesel equipment.
When to use a quick hitch coupler?
- Multi-task engineering projects: For example, municipal engineering projects require frequent switching between breaker hammers (Quick Hitch Coupler) and buckets;
- Rental equipment operation: Rental companies use Excavator Couplers to quickly adapt to the attachment needs of different customers;
- Extreme working conditions: The heavy-load environment of mines requires the high tensile strength of the Pin Grabber Coupler;
- Upgrading old equipment: Adding Mechanical Quick couplers to traditional excavators to be compatible with new hydraulic attachments;
- Construction in narrow spaces: For example, quickly switching attachments in tunnels to reduce the time it takes to get in and out of equipment.