ZX470 4698938C YA00004895 Crawler excavator Boom cylinder assy for excavator

ZX470 4698938C YA00004895 Crawler excavator Boom cylinder assy for excavator

List of spare parts

Working cycle of double acting oil cylinder
Excavators commonly use double acting hydraulic cylinders, which are characterized by pressure oil flowing into both sides of the piston, achieving bidirectional active motion control. Its working cycle can be divided into two stages: extension and retraction. In the extension stage, the pressure oil enters the rodless chamber, while the oil in the rod chamber returns to the oil tank, and the piston rod extends outward; In the retraction stage, the pressure oil enters the rod chamber, and the oil in the rodless chamber returns to the oil tank, causing the piston rod to retract inward by 4. By precisely adjusting the inlet and outlet directions and flow rates of the two chambers through control valves, precise control of various complex movements of excavators can be achieved.

An important working mode of the double acting hydraulic cylinder is differential connection, which means that both chambers of the cylinder are simultaneously connected to pressure oil 816. Due to the larger effective area of the rodless chamber compared to the rodless chamber, the piston will move towards the rodless chamber while replenishing the oil in the rodless chamber, creating a "differential" effect. This connection method can increase the movement speed of the piston (but correspondingly reduce the output force) without increasing the pump flow rate, and is commonly used in scenarios where excavators need to quickly approach working conditions with no load. Differential connection is a typical application of energy-saving design in hydraulic systems.

FAQ:

1. If I only know the excavator model, but can not offer parts No., what should I do ?
If possible, you can send us pictures of old products, nameplate or the size for reference.
2. What is the warranty of the parts after I purchased?
The warranty is 6/12 Months based on the item details.
3. How can I pay the order?
We can receive payment through T/T, Paypal(for small amount),Alibaba trade assurance.
4. When will get the items after I place order?
Once your payment is confirmed, we will arrange the goods within 24 hours; if not in stock , we will inform you before placing the order.
5. How can I do if there is something wrong with the items?
First of all , I have confidence in the quality of our products ,if you really found something wrong ,pls provide pictures for us and we will check. After it is confirmed, pls return to us , we will offer the correct item.
6. What is your main products ?
We are specialized in the excavator spare parts, such as travel motor gearbox/ass’y/parts, swing gearbox/ass’y/motor/parts, hydraulic pump assy/parts and gear parts. If you need other excavator parts, we also can supply as your requirements.