Ermaksan Green Press Brake Tandem 20200-900
The Ermaksan Green Press Brake Tandem 20200-900 is a very high-tonnage tandem press brake configuration aimed at heavy plate forming in shipbuilding, heavy manufacturing, and high‑rise construction, where long parts, thick plate, and structural beams must be formed with high repeatability and controlled deflection.
Quick Look
- Application focus: heavy plate forming for ship hulls, structural beams, and large construction components.
- Machine type: tandem press brake system (two synchronized brakes operating together for extra length and tonnage).
- Typical workpieces: thick hull plating, wide structural webs and flanges, heavy base plates, stiffeners, and long box sections.
- Core advantage: combines high tonnage with long bending length, allowing single-piece bending where smaller brakes would require multiple setups or welding.
- Operational environment: shipyards, heavy fabrication shops, bridge and high‑rise component plants, and large steel service centers.
- Key performance drivers: available tonnage per meter, total bending length, crowning/deflection compensation, and backgauge accuracy for long parts.
Budgeting & Pricing
Pricing estimate (USD): $250,000 – $900,000 USD
- Major cost driver is total installed tonnage: higher tonnage capacity for very thick plate and wide sections pushes the price toward the upper end of the range.
- Overall bending length (combined tandem length) significantly affects cost; longer beds for ship hull panels and long beams add structure, hydraulics, and control complexity.
- Control system sophistication (e.g., advanced CNC axes, offline programming, 3D bending simulation) can add a substantial premium over basic configurations.
- Additional backgauge axes and support devices for large plates (front sheet followers, side supports, anti‑deflection systems) increase both purchase price and installation complexity.
- Foundation, rigging, and commissioning for a tandem high‑tonnage line are non‑trivial budget items and should be planned alongside the machine cost.
- Tooling for heavy plate (wide dies, large V‑openings, special beam tools) can represent a significant extra investment beyond the base machine price.
Key Selection Factors
- Tonnage and material thickness capability – Match available tonnage per meter to your thickest plate and longest bends for ship hulls and structural beams; ensure sufficient capacity for both current and projected material grades and thicknesses.
- Bending length and tandem configuration – Confirm the total working length of the tandem setup suits your largest hull panels, beam segments, or plate girders, and whether each individual brake can also be used independently for shorter work.
- <strong.Frame rigidity and crowning/deflection control – For long, heavy parts, look for robust frames and effective crowning or hydraulic deflection compensation to keep angle consistency across the full length.
- <strong.Backgauge range and accuracy – Evaluate how many axes and what stroke length you need to position large plates and structural profiles repeatedly along the full width.
- <strong.Synchronization between tandem units – Check how the tandem brakes are electronically and hydraulically synchronized to avoid twist, mismatch, or uneven angles on long parts.
- <strong.Tooling interface and heavy-duty tools – Ensure the ram and bed accept the heavy punch and die systems required for thick plate and beam forming, with adequate clamping strength and safety margins.
- <strong.Material handling and safety – Consider front sheet followers, side supports, overhead cranes, or conveyors to safely move ship hull plates and large beams into position, and verify guarding and safety systems are compatible with your workflow.
What to Inspect Before You Buy
- Verify documented tonnage rating and bending length against your thickest, longest planned parts, including any safety factor you require.
- Inspect the frames, side housings, and beds for signs of distortion, cracking, or previous overloading, especially near high-stress corners and welds.
- Check ram straightness and bed flatness, and review available data or test bends to confirm angle consistency across the full tandem length.
- Operate the tandem synchronization system (if possible) to confirm both machines move in unison and hold position without noticeable lag or misalignment.
- Evaluate the backgauge: travel range, repeatability, and smoothness of motion, as well as the condition of fingers, screws, and linear guides.
- Review the control system for ease of programming multi‑bend heavy parts, available axes, and compatibility with any offline programming you plan to use.
- Inspect hydraulic components (hoses, cylinders, manifolds) for leaks, unusual noise, or temperature rise during operation tests.
- Confirm that electrical cabinets, wiring, and safety circuits are in good condition and that emergency stops, light curtains, and interlocks function correctly.
- Assess existing tooling for wear, suitability for your required V‑openings and radii, and whether additional heavy‑duty tooling will be needed.
- Request maintenance and service records (if available), including any major repairs, component replacements, and calibration or alignment work.
Common Questions
What types of work is the Ermaksan Green Press Brake Tandem 20200-900 best suited for? It is targeted at high-tonnage bending applications such as ship hull plates, structural beams, and heavy plate components used in shipbuilding, heavy manufacturing, and high‑rise construction.
Why choose a tandem press brake instead of a single long machine? A tandem setup allows two brakes to work together for very long parts while still being usable individually for shorter work, offering flexibility and very high combined bending length and tonnage.
How should I size the tonnage for heavy plate forming? Base your selection on the thickest material, hardest grade, and longest bend you plan to run, ensuring the available tonnage per meter is adequate with a margin for occasional heavier jobs.
Is this machine suitable for forming ship hull panels in one piece? It is designed precisely for long, heavy plate work such as hull panels, where the tandem length and high tonnage allow single‑piece bends that smaller brakes would need to segment or weld.
What impacts the price range between $250,000 and $900,000? Total tonnage, overall bending length, control sophistication, number of axes, and additional handling or support equipment all drive the machine toward the lower or upper end of that range.
Can the tandem units be used independently? Many tandem configurations are designed so each press brake can operate alone for shorter parts, but you should confirm this specific capability and any limitations with the configuration you are considering.
What kind of tooling is needed for ship hull and structural beam work? Heavy‑duty punches and wide‑opening dies sized for thick plate and large bend radii are typically required, and the machine’s clamping and bed must be compatible with such tooling.
How important is crowning or deflection compensation on this type of press brake? For long, heavy parts, effective crowning or deflection compensation is critical to maintain consistent bend angles across the full length of ship hull plates and beams.
What facilities are needed to install a tandem high-tonnage press brake? You should plan for adequate floor space, a suitable foundation, overhead lifting for tooling and plate handling, and appropriate power and hydraulic service provisions.
How can I evaluate a used unit before purchase? Inspect the frame and beds for damage, test synchronization and backgauge accuracy, check hydraulic and electrical systems, review maintenance records, and, if possible, run test bends on representative heavy plate.
Source: Ermaksan Green Press Brake Tandem 20200-900
Ermaksan Green Press Brake Tandem 20200-900
