Formula details
Product Details
Overview
Precision 12 ft (3,657 mm) 4-Way Press Brake Die Block
Indexable Multi-Gauge Bending Performance
- Zero-Downtime Indexing: Rotate the 4 way press brake die 12ft long block directly on the bed to transition across thin to heavy sheet metal gauges instantly.
- Seamless Continuous Bending: Available as a single-piece continuous 12 ft (3,657 mm) body to eliminate seam marking and angular deviation on long architectural panels, or as precision modular segments (835 mm / 415 mm).
- Universal Machine Fitment: Features direct drop-in compatibility with major hydraulic and electric press brake clamping systems, standard bed rails, and die holders.
12 ft 4-Way Rotatable V-Die Technical Overview
| Feature | Standard Parameter |
|---|---|
| Total Length | 12 ft (3,657 mm continuous) or Modular sets |
| Tool Geometry | 4-way V-groove indexable rotatable bottom die |
| Core Advantage | Eliminates secondary tooling setups for multi-gauge runs |
| Compatibility | American standard tang & European precision die holders |
Operational Advantages of Our 4 Way Press Brake Die 12 ft Long

We engineer our 4 way press brake die 12 ft long tooling to eliminate setup bottlenecking, maximize machine uptime, and lower overall tooling investments across high-mix production runs.
- Zero-Bed-Removal Tool Indexing: Rotate the indexable die block directly on the machine bed to switch between four distinct V-openings without unbolting or removing the heavy die body.
- Elimination of Deflection & Wear: Full-length precision CNC grinding ensures continuous, uniform beam contact and prevents angular deviation across the full 12-foot span.
- Anti-Marring Surface Finish: Precision-polished V-groove shoulders minimize friction and eliminate cosmetic scuffing on sensitive materials like architectural aluminum, polished stainless steel, and pre-painted sheet stock.
- High-Tonnage Load Capacity: Solid alloy steel construction supports heavy-plate air bending at working loads up to 400 Ton/m without structural deformation. Refer to our press brake V die chart and tonnage guide to match specific sheet thicknesses with safe operating limits.
Technical Specifications for 4 Way Press Brake Die 12 ft Long
| Specification Parameter | Standard Configuration | Option / Custom Capability |
|---|---|---|
| Overall Length | 12 ft (3,657 mm continuous) | Modular sets (835 mm / 415 mm) or up to 6,000 mm |
| Core Material | Certified 42CrMo / 42CrMo4 Alloy Steel | 4140 Steel, Cr12MoV |
| Working Surface Hardness | Deep Induction Hardened 55–60 HRC | Through-hardened core options |
| Hardening Depth | 3.0 mm – 5.0 mm on working edges | Tailored depth for specific tonnage loads |
| Profile Grinding Tolerance | Precision CNC Ground to ±0.01 mm | Custom micro-tolerances |
| Surface Roughness | Ra < 0.8 µm (Standard polished finish) | High-polish Ra 0.4 µm |
| Standard Die Angles | 85° (Built-in springback support) | 90° or custom acute angles |
| V-Opening Sizes | Multi-V combination sets (V16, V22, V35, V50 mm) | Custom V-grooves from V6 to V120+ mm |
| Max Tonnage Capacity | 100 Ton/m – 400 Ton/m | Heavy-plate reinforced structures |
Key Engineering Highlights:
- Precision CNC Profile Grinding: Every 4 way press brake die 12ft long is ground to ±0.01 mm profile tolerance along the entire 3,657 mm span to prevent center-to-edge angular deviation.
- Springback Compensation: Standard 85° V-grooves accommodate sheet metal elasticity; review our press brake die angles guide for springback selection to match your exact sheet material grades.
- High-Tonnage Durability: Deep induction-hardened shoulders (55–60 HRC, 3.0–5.0 mm depth) support heavy forming loads up to 400 Ton/m. Refer to our press brake die rating guide for tonnage safety to verify load limits prior to high-pressure production runs.
Machine Adaptation & Die Holder Compatibility for 4 Way Press Brake Die 12 ft Long
We design our 4 way press brake die 12 ft long for immediate drop-in integration across major OEM machine beds, eliminating mechanical adaptation delays during setup.
| Adaptation Style | Tang & Seating Geometry | Compatible Press Brake Brands |
|---|---|---|
| American Standard | 0.500" x 0.625" (12.7 mm x 15.875 mm) bottom tang | Cincinnati, Pacific, Edwards, Niagara |
| European Precision | Promecam-style alignment surface for power clamping | Amada, Trumpf, LVD, Bystronic |
Our manufacturing facility provides precise press brake die replacement for American and European styles to match any machine bed layout, including custom Cincinnati press brake die set compatible T-style dies.
Critical Fitment & Accessory Requirements
- American Standard Style: Standard bottom tang dimensions ensure direct seating in traditional North American press brake beds.
- European Precision Style: Ground seating surfaces integrate directly into European bottom die holders and pneumatic or hydraulic clamping rails.
- Universal Machine Fitment: Fully compatible with standard 12-foot bed lengths on Amada, Trumpf, LVD, Bystronic, Pacific, Cincinnati, and Edwards hydraulic presses.
- Die Holder & Filler Block Accessories: Equipped with overhead safety lifting holes, safety locking pins, and heavy-duty 12ft press brake die holder rail blocks to allow safe 360° rotation on the bed.
CAMT Manufacturing Precision for 12 ft 4-Way Press Brake Dies
At CAMT, we engineer every 4 way press brake die 12 ft long to deliver structural integrity, precise bend angles, and lasting wear resistance under extreme production loads.
- Material Certification: We forge every 4-way press brake die 12ft long from high-density certified 42CrMo alloy steel, complete with raw material heat-treat documentation for total traceability.
- Vacuum Heat Treatment & Deep Induction Hardening: Our dual-stage heat treatment ensures maximum core toughness alongside localized high-frequency induction hardening (55–60 HRC at 3.0 mm – 5.0 mm depth) on high-stress V-groove shoulders.
- Micron-Level CNC Profile Grinding: Advanced multi-axis CNC grinding maintains a tight profile tolerance of ±0.01 mm and smooth surface finish (Ra < 0.8 µm) across the full 12-foot length to prevent beam deviation.
- Quality Verification Protocol: Before export packaging, every 42CrMo press brake tooling block completes a 100% CMM laser alignment optical check, hardness verification, and straightness audit.
Industrial Applications of the 4 Way Press Brake Die 12 ft Long
Architectural & Structural Forming
- Full-Span Seamless Bends: Executes continuous 12-foot bends without seam marking or angular deviation along the entire bed length.
- Core Components: Engineered for manufacturing elevator doors, exterior architectural facade panels, heavy structural channels, and commercial wall cladding.
- Precision Control: Maintains exact flange dimensions and uniform angular tolerances across long-format sheet metal.
HVAC & Enclosure Fabrication
- Rapid Multi-Gauge Switching: Index between light-gauge sheet metal V-openings and heavy-gauge frame V-openings in seconds without removing the die block from the press brake bed.
- Enclosure Production: Streamlines structural frame and panel forming for complex industrial electrical cabinets and heavy switchgear enclosures.
- Ductwork Efficiency: Minimizes tool changeover downtime when transitioning between thin HVAC ducting and structural mounting brackets.
Heavy Plate & Job Shop Bending
- Multi-Material Flexibility: Form carbon steel, structural aluminum, and high-tensile stainless steel on the same bed setup.
- High-Tonnage Load Capacity: Heavy-duty solid construction supports high-tonnage forming loads for heavy plate work.
- Streamlined Production: Ideal for high-mix job shops handling custom sheet metal fabrication, allowing operators to process varying material thicknesses in a single continuous production run.
Custom V-Opening Configuration & Quote Request

Calculating Recommended Press Brake Die Opening Sizes
To determine the four standard V-groove dimensions for your indexable die block, apply our standard rule-of-thumb formula:
- Standard Carbon Steel: V-Opening Width = 8 x Material Thickness (T)
- Tight Radius Bending: V-Opening Width = 6 x T (Best for acute bends on thin-gauge sheets)
- High-Strength Alloys: V-Opening Width = 10 x T to 12 x T (Reduces tonnage requirements and limits springback on high-tensile steel)
When calculating tonnage limits and material friction for specialized alloys, consult our press brake die selection guide to prevent shoulder galling and tool overload.
Requesting a Fast Technical Quote
We manufacture custom-milled 4 way press brake die 12ft long blocks built for direct drop-in fitment. Submit the following parameters for an immediate engineering review and quote:
- Machine Specifications: Press brake make, model, total tonnage, and total bed clearance.
- Tool Geometry: Target V-groove widths (e.g., V16, V22, V35, V50 mm or custom imperial sizes), V-angles (85° or 90°), and bottom tang dimensions.
- Operational Accessories: Safety pin slots, lifting holes, or modified shoulder radiuses.
CAD File Upload & Direct Engineering Review
Submit your 2D or 3D CAD drawings (.DWG, .DXF, .STEP) directly through our quote portal. Our engineering team audits every file for throat clearance, beam balance, and tonnage limits before manufacturing your multi-V tooling set.
Frequently Asked Questions (FAQs)
4-Way Press Brake Die 12 ft Long Working Principle
A 4 way press brake die 12 ft long is a four-sided, rotatable bottom die block featuring four distinct V-opening widths precision-ground into a single 3,657 mm solid body. Instead of swapping out individual bottom tools whenever sheet metal thickness changes, we simply rotate the block on the press brake bed to index the required V-groove. This design eliminates tool change downtime and maintains total angular precision across full 12-foot production runs.
Selecting V-Opening Sizes for 12ft Sheet Metal Bending
To select optimal V-grooves for our metal forming press brake dies, we follow the industry baseline formula of V = 8 x Material Thickness (T) for mild steel:
- 1.0 mm – 1.5 mm sheet metal: Use V8 mm to V12 mm openings.
- 2.0 mm – 3.0 mm sheet metal: Select V16 mm to V25 mm openings.
- 4.0 mm – 6.0 mm structural plate: Utilize V35 mm, V50 mm, or larger V-grooves.
- Springback Compensation: For high-tensile materials, specify 85° acute V-angles instead of standard 90° profiles to account for material springback.
Compatibility with American and European Press Brake Tooling
Yes. We engineer our 4 way press brake die 12ft long models with universal seating bases and precision tang geometries. They drop directly into standard 0.500" x 0.625" American bottom rails as well as European style press brake beds. For seamless integration, we supply custom filler blocks, safety pins, and overhead lifting eyes compatible with standard American and European tooling clamping systems on Amada, Trumpf, Cincinnati, and Bystronic machines.
Why 42CrMo Alloy Steel is Essential for 12ft 4-Way Dies
Bending heavy sheet metal across a full 12-foot span creates intense concentrated loads, frequently reaching 100 to 400 Ton/m. We exclusively forge our 4-way dies from certified 42CrMo alloy steel (42CrMo4 / AISI 4140) for its high tensile strength and impact resistance. Coupled with deep induction hardening (55–60 HRC down to 3.0–5.0 mm depth) on high-wear V-shoulders, this material structure prevents micro-flexing, profile degradation, and permanent beam deflection over long service cycles.





