Kaiping Zhonghe Machinery Manufacturing Co., Ltd
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Catalogue ZH excavator boom arm.pdf
1. 14000㎡ Workshop & Precision Equipments
2. A High-tech R&D Team & 10+ Years Experienced Engineer
3. 30+ Experienced Workers with 5 Years Welding Experience
4. Customized(Painting, length, material, extra hydraulic tubes...)
5. Prompt Lead Time 10-20 Days & Can Produce 600 Sets Excavator Booms / Year
6. Good Service Within 24 Hours*7 Days
A quick hitch (QH) on an excavator is a latching device that enables attachments to be connected to the dipper arm of the plant and interchanged quickly. An excavator operator may change the bucket on his excavator up to 30 times a day in order to maximise the machine productivity.
It is composed of main support, movable block, hydraulic cylinder, pin shaft and other components. The use of quick joint in the replacement of various configurations, no need depart pins manually, the excavator operator in the carrige gently move the switch to replce the attachment within 10 seconds, saving the time when replaceing accessories, greatly improve the work efficiency.
| Item/Model | Unit | ZHMINI | ZH45 | ZH50/55 | ZH60/65 | ZH70/80 | ZH90 | ZH100/110 |
| Suitable Excavator | ton | 1.5-4 | 4-7 | 5-8 | 9-19 | 17-23 | 23-30 | 33-45 |
| 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 |
| Norking Pressure | bar | 32-40 | 32-40 | 32-40 | 32-40 | 32-40 | 32-40 | 32-40 |
| Working Flow | lpm | 10-20 | 10-20 | 10-20 | 10-20 | 10-20 | 10-20 | 10-20 |
1. Adopt Q345/Q355B, high strength and corrosion resistance;
2. Pins are 42CrMu with high strength and toughness
3. The oil cylinder is robust with double oil seal, avoid leakage and have long life service.
4. Protection design(removable tiger mouth spring valve, safety pin) makes it reliable.
6. Hydraulic grabs for excavators