Hitchi Hitchi ZX130 9289616 9180429 9196238 Travel Motor Assy For Hitachi HMGE21E Final Drive Travel Motor Assy For Hitachi HMGE21E Final Drive

Hitchi ZX130 9289616 9180429 9196238 Travel Motor Assy for hitachi HMGE21E final drive

Piston pumps are the "aristocrats" of excavator hydraulic systems and the most common choice for medium and large excavators. They use multiple pistons moving reciprocally within cylinders to alter working volume, achieving oil intake and discharge. Based on piston arrangement, they're mainly categorized as axial or radial piston pumps.

Axial piston pumps dominate modern excavators, with pistons arranged parallel to the drive shaft. When the swashplate (or tilt plate) angles relative to the drive shaft, the pistons reciprocate during rotation. Greater angles create longer piston strokes and larger pump displacement. Modern variable displacement piston pumps can adjust the swashplate angle in real time to modify output flow for different working conditions.

List of spare parts

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), 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.