This 4.5‑meter heavy‑duty knife grinding machine delivers consistent grinding performance for extra‑long blades under continuous industrial‑grade working conditions. It is built to eliminate uneven edge wear frequently seen when processing over‑length woodworking cutters.
The machine is equipped with durable grinding components and optimized transmission system, which effectively reduce component loss during frequent reciprocating movement. Limit switches are installed on both ends to restrict the working travel of the grinding carriage, avoiding mechanical collision and improving overall operation safety.
With flexible compatibility for diverse blade thickness and edge angles, the unit can satisfy different sharpening requirements from veneer peeling, wood crushing to material slitting processes. It helps factories standardize blade‑sharpening quality and avoid inconsistent manual grinding results.
Alva Machinery provides complete technical support including installation guidance, operation training and after‑sales service, to help customers achieve stable long‑term production.
| Availability: | |
|---|---|
| Quantity: | |
![]() | Product Introduction |
This 4.5‑meter heavy‑duty knife grinding machine is independently developed and manufactured by Alva Machinery, specially designed for high‑capacity plywood and veneer production enterprises. It is applicable for precise grinding of various long‑size straight blades, including veneer peeling knives, planer blades, crusher blades and slitter blades.
Adopting heavy‑duty integral welded frame structure, the machine features good rigidity and stable operation during long‑time continuous working. High‑precision linear guide rail ensures smooth feeding movement and consistent grinding accuracy along the full length of the blade. The grinding head runs steadily, realizing uniform sharpening effect, effectively guaranteeing sharp cutting edge and extending blade service life.
Human‑friendly operation panel simplifies parameter setting. Operators can easily adjust grinding travel and grinding depth according to different blade specifications. This equipment greatly reduces manual sharpening workload, lowers machine‑stop frequency caused by blunt knives, and improves overall production efficiency for wood‑processing lines.
Suitable for large‑scale veneer factories, plywood plants and wood recycling processing sites. Customized options are available upon customer’s actual working conditions.
Key Features
✅ Heavy‑duty rigid frame for long‑term heavy‑load operation
✅ 4.5‑metre effective grinding length for extra‑long blades
✅ High‑precision guide rail, stable and even grinding result
✅ Fit for multiple types of woodworking straight blades
✅ Simple operation, reduce downtime and labour cost
✅ Support non‑standard customization
![]() | Product Display |

![]() | Product Parameter |
| Item | Parameter |
| Equipment Name | knife grinder |
| Model | ALVA-KGM4500 |
| Total Power | 8.0KW |
| Weight | 4000kg |
| Maximum Grinding Length | 4500mm |
| Overall Dimensions | 6500×1300×1300mm |
![]() | Product Advantages |
Stable and Reliable Grinding Accuracy
Equipped with high‑precision linear guide rails, the grinding head runs smoothly without jitter. It ensures uniform grinding along the full length of 4.5‑meter extra‑long blades for sharp cutting edges and extended tool service life.
Heavy‑Duty Frame with Strong Load‑Bearing Capacity
Adopting an integrally welded heavy‑duty frame, the machine owns sufficient structural rigidity. It resists deformation under long‑time heavy‑load operation to meet continuous high‑intensity production of plywood factories.
Simple and Efficient Operation & Adjustment
Fitted with integrated control panel and manual adjusting handwheel, it enables intuitive setting of grinding stroke and depth. It lowers operator learning threshold and shortens downtime for equipment commissioning.