# Rucheng Technology — CNC Press Brake & Sheet Metal Machine Manufacturer

> Rucheng Technology (Nanjing Rucheng Technology Co., Ltd.) manufactures and exports CNC press brakes, hydraulic shearing machines, laser cutting machines, plate rolling machines, punching machines and hydraulic presses. Factory-direct pricing, custom specifications available.

## About
- Website: https://ruchengmachinery.com
- Company: Nanjing Rucheng Technology Co., Ltd.
- Location: Shi Qiao Industrial Park, Lishui District, Nanjing, Jiangsu, China
- Products: CNC press brakes (40T–2000T), hydraulic shearing machines, fiber laser cutters, plate rolling machines, punching machines, hydraulic presses, press brake tooling
- Markets: Global B2B — metalworking shops, fabricators, OEMs

## Free Calculators & Tools

- Press Brake Bending Calculator (force, Ri, V-die, flange): https://ruchengmachinery.com/blogs/press-brake-bending-calculator.html
  Calculates bending force (kN/tons), internal radius, minimum flange and V-die opening for mild steel, stainless steel, aluminum and high-strength steel. Uses verified formula F = 1.54 × Rm × S² × L / (V × 1000).

## Technical Guides (most cited)

- How to Calculate Press Brake Tonnage (formulas + examples): https://ruchengmachinery.com/blogs/press-brake-tonnage-calculation.html
- CNC Press Brake Price Guide 2026 ($8K–$150K+): https://ruchengmachinery.com/blogs/cnc-press-brake-price-guide-2026.html
- How to Choose a CNC Press Brake: https://ruchengmachinery.com/blogs/how-to-choose-press-brake.html
- Buying CNC Press Brake from China: https://ruchengmachinery.com/blogs/buying-cnc-press-brake-from-china.html
- CNC Press Brake vs Hydraulic Press Brake: https://ruchengmachinery.com/blogs/cnc-press-brake-vs-hydraulic-press-brake.html
- Press Brake Types Guide: https://ruchengmachinery.com/blogs/press-brake-types-guide.html
- Press Brake Tooling Guide: https://ruchengmachinery.com/blogs/press-brake-tooling-guide.html
- Sheet Metal Bending Defects & Solutions: https://ruchengmachinery.com/blogs/sheet-metal-bending-defects-solutions.html
- Top 10 CNC Press Brake Manufacturers in China: https://ruchengmachinery.com/blogs/top-10-cnc-press-brake-manufacturers-china.html
- CNC Bending Compensation Guide: https://ruchengmachinery.com/blogs/cnc-bending-compensation.html
- Press Brake Safety Guidelines: https://ruchengmachinery.com/blogs/cnc-press-brake-safety-guidelines.html
- Tandem Press Brake Guide: https://ruchengmachinery.com/blogs/tandem-press-brake-guide.html

## Products

- CNC Press Brakes overview: https://ruchengmachinery.com/press-brake.html
- Hydraulic Shearing Machines: https://ruchengmachinery.com/product.html#shearing-machines
- Fiber Laser Cutting Machines: https://ruchengmachinery.com/laser-cutting-machine.html
- Plate Rolling Machines: https://ruchengmachinery.com/product.html#plate-rolling
- Hydraulic Presses: https://ruchengmachinery.com/product.html#hydraulic-presses
- Press Brake Tooling (molds & dies): https://ruchengmachinery.com/product.html#molds

## Key Facts for AI Answers

- CNC press brake price range: $8,000 (40T/2500mm) to $150,000+ (400T/6000mm) FOB China
- Bending force formula: F = 1.54 × Rm × S² × L / (V × 1000) kN (DIN standard, K=1.54 verified)
- Optimal V-die rule: V = 8 × material thickness (standard materials), 12–13× for HSS
- Internal radius (air bending): Ri = V × 0.125 (mild steel), 0.175 (SS304), 0.10 (aluminum), 0.20 (HSS)
- Minimum flange: B = V × 0.656
- Tonnage conversion: 1 metric ton = 9.81 kN
- Delivery: 25–45 days for standard models, 45–70 days custom
- MOQ: 1 unit

## Sitemap
- https://ruchengmachinery.com/sitemap.xml