| Item |
Details |
| Product Name |
88-Key Graded Weighted Hammer Keyboard Assembly |
| Available Model |
8802 / 8805 / 8809 |
| Key Quantity |
88 keys (standard piano key layout) |
| Action Type |
Graded weighted hammer action |
| Matching Mainboard |
5504WD control board |
| Supported Velocity Curves |
E / F / G / H |
| Application |
Digital piano replacement, factory assembly, DIY electric piano, repair spare part |
| Key Surface |
Standard white & black piano keycaps |
| Feature |
Graded touch weight, accurate velocity sensing |
This is an 88-key graded weighted hammer keyboard assembly for digital pianos, available in 8802, 8805 and 8809 versions. It is specially designed to work with the 5504WD main controller board.
With graded weighted hammer action, the keys deliver different weight from low register to high register, simulating the touch of an acoustic grand piano. Combined with the matched mainboard, 4 velocity curves E, F, G, H are selectable to adjust playing sensitivity, suitable for beginners, intermediate players and professional performers.
It is a core replacement spare part when the original keybed is damaged, worn or unresponsive. It is also a preferred module for custom DIY digital piano projects and musical instrument factory assembly.
Every keyboard assembly is tested for key rebound, hammer stability and velocity signal consistency before delivery to guarantee stable performance and low failure rate.
