Press Brake Buyer’s Guide — How to Choose
Torsion bar vs electro-hydraulic vs all-electric. Tonnage, length, controller, and frame — what actually matters when you buy a press brake.
1. Tonnage and Bed Length
Tonnage depends on material thickness and bend length. As a rule of thumb, thicker and harder material needs more tonnage — but a real quote should be based on your actual parts, bend radius, and die opening.
Bed length must cover your longest part. A 3.2m bed handles most sheet work; longer parts need 4m, 6m or up to 9m beds.
2. Synchronization Type
| Type | Series | Best for | Trade-off |
|---|---|---|---|
| Torsion bar | DWT Standard | Simple bending, budget-first shops | Precision can drift on long strokes |
| Electro-hydraulic servo | DWP Professional ⭐ | Production work needing ±0.01mm repeatability | Higher investment |
| All-electric | DWE Elite ⭐ | Clean rooms, low energy, no oil | Smaller tonnage range |
3. Controller
DRO — digital display of positions; operator-driven. Fine for simple, repeatable work.
CNC (Estun, DELEM, Cybelec) — programmed bends, angle correction, back gauge automation, and recipe storage. For batch production, CNC pays for itself quickly.
4. Frame and Hydraulic Press Types
- C-frame (YDW41) — 3-sided access, compact, lighter duty.
- Straight-side / H-frame (YDW27) — closed frame, highest rigidity for precision pressing.
- Four-post (YDW32) — the workhorse for deep drawing and general pressing.
- Gantry (YDW78) — oversized parts that travel under the press on rails.
Checklist Before You Buy
- Send us your material, thickness, bend length, and required accuracy — get a real recommendation, not a sales pitch.
- Ask for the test protocol: 24-hour run, test bend, 7-point inspection.
- Ask for the digital engineering package — your machine’s twin for life.
- Visit the factory if you can: 90 minutes from Shanghai.
Tell Us What You Bend. We’ll Recommend the Machine.
Get a quote, delivery time, and honest technical advice — straight from the factory. 1-hour response during working hours (GMT+8, Mon–Fri).