1. Importance of Throat Depth
Throat depth is the distance from the centerline of the ram to the inside of the side frame. It plays a key role in determining whether the press brake can process box-type or U-shaped workpieces and handle reverse or closed bends.
Impact #1: Support for Closed or Return Flange Bending
If the throat depth is too shallow, parts may not fit under the tooling, limiting shape complexity.
Impact #2: Greater Flexibility in Handling and Clamping
A deeper throat allows easier repositioning of larger workpieces and helps with multi-directional operations.
Typical Range: 200mm–600mm. For box panels or structural frames, ≥400mm is recommended.
2. Importance of Table (Bending) Length
The bending length is the maximum sheet length the machine can bend in a single stroke. It is one of the first parameters customers evaluate.
Impact #1: Can It Bend the Entire Workpiece at Once?
If the workpiece exceeds the table length, it must be bent in sections, which may lead to accuracy loss.
Impact #2: Higher Productivity and Large Work Compatibility
A longer bed (e.g., 6000mm) enables full-length bending of structural beams, bridge panels, or machine frames—saving time and labor.
Impact #3: Space Requirements
Longer machines require larger workshop areas, best suited for fixed production lines and batch processing.
Typical Options: 2500mm / 3200mm / 4000mm / 6000mm
3. Practical Selection Reference
|
Application Type |
Recommended Throat Depth |
Recommended Bending Length |
|---|---|---|
|
Electric cabinets / appliances |
200–250mm |
2500–3200mm |
|
Elevator stainless panels |
300–400mm |
3200–4000mm |
|
Engineering machinery parts |
400–500mm |
4000–6000mm |
|
Bridge / steel structures |
≥500mm |
6000mm |
|
Closed-box / return-bent parts |
≥400mm |
3200mm+ |
