Precision
Metal Bending
Services
Transforming flat sheets into complex geometries with unrivaled accuracy.
From rapid prototypes to high-volume production runs.
ISO 9001 Certified| Advanced CNC Press Brakes | Rapid Prototypes & Production
What is Metal Bending?
The Foundation of Metal Fabrication
Metal bending is a forming process that plastically deforms a sheet of metal to create a desired angle or shape without cutting material. Using a machine called a press brake, a punch and die are used to apply force, producing everything from simple brackets to complex, multi-bend enclosures with exceptional repeatability.
Our Core Bending
Capabilities
CNC Press Brake Bending
The core of our service. Our state-of-the-art CNC press brakes ensure high accuracy and repeatability for angles, flanges, and channels.
Roll Bending
For creating large-radius curves, arcs, and cylinders from sheet metal or profiles. Ideal for tanks, cones, and architectural elements.
Complex Bending (Flanging & Hemming)
We perform advanced techniques like hemming to create safe, rounded edges, and flanging to add stiffness or connection points.
Tube & Pipe Bending
Utilizing mandrel and rotary draw benders, we create smooth, wrinkle-free bends in round and square tubing for frames, railings, and conduits.
Automated Panel Bending
For high-volume production of panels and enclosures, our automated bending cells offer unparalleled speed and consistency.
Tooling Selection & Simulation
Our engineers use simulation software to determine the optimal bend sequence and tooling, preventing collisions and ensuring design feasibility.
Why Choose RAPMAF
Manufacturing for Metal Bending
Unmatched Accuracy
We achieve tight tolerances on angles and dimensions, ensuring your parts fit perfectly in their final assembly every time.
Expert DFM Support
Our engineers provide free Design for Manufacturability (DFM) feedback to optimize your design for cost-effective, high-quality bending.
Vast Material Expertise
We have extensive experience bending a wide range of metals, understanding the unique properties and springback characteristics of each.
Speed and Efficiency
Streamlined processes and advanced CNC machinery allow us to deliver your bent parts with industry-leading turnaround times.
Scalable Production
Whether you need a single prototype or a production run of 10,000+ pieces, we have the capacity to meet your demands.
Integrated Services
We are more than a bending shop. We offer a one-stop solution from laser cutting and welding to finishing and assembly.
Technical Specifications
We adhere to strict technical standards to ensure your parts are cut perfectly every time. Please review our capabilities below.
| Feature | Specification |
|---|---|
|
Bending Process |
CNC Press Brake Bending, Roll Bending, Panel Bending |
|
Max Bending Length |
Up to 10 ft (3 meters) |
|
Max Bending Thickness |
Up to 0.5 in (12.7 mm) for Steel |
|
Standard Angular Tolerance |
±0.5 degrees |
|
Standard Linear Tolerance |
±0.010 in (±0.25 mm) |
|
Smallest Flange Length |
Typically 4x material thickness |
|
Supported File Formats |
STEP, SLDPRT, DXF, DWG, PDF |
Our Bending Workflow
Step 1
Quote & DFM Analysis
Submit your CAD file. Our engineers review your design and provide a detailed quote and DFM feedback within 24 hours.
Step 2
Programming & Setup
Once approved, we program the optimal bend sequence and select the precise tooling for your job.
Step 3
Bending & Fabrication
Your parts are expertly formed on our CNC press brakes by skilled operators, ensuring consistency across the entire batch.
Step 4
Quality Inspection & Delivery
Every part undergoes rigorous quality checks for dimensional and angular accuracy before being securely packaged and shipped to you.
Metals We Bend
Steel
Description
Excellent formability and strength, cost-effective.
Price：$$
Stainless Steel
Description
High corrosion resistance and aesthetic appeal.
Price：$$$
Aluminum
Description
Lightweight and corrosion-resistant, easy to form.
Price：$$
Copper
Description
Excellent conductivity, high ductility.
Price：$$$$
Brass
Description
Good corrosion resistance and decorative finish.
Price：$$$$
Titanium
Description
High strength-to-weight ratio, but requires special techniques.
Price：$$$$$
If your project requires a specific resin not listed here, our engineering team can source and process it to meet your exact specifications.
From Bending to Complete Assembly
CNC Punching
For creating holes, louvers, and forms.
Hardware Insertion
Installing nuts, studs, and standoffs.
Engineering Support
Design assistance and optimization.
Industries We Serve
We assemble complex robotic arms,end-effectors, and control boxes,integrating motors,sensors, and wiring
We build diagnostic equipment and lab instruments in a controlled environment,adhering to strict quality and documentation standards.
We provide final assembly for high-end audio equipment, smart home devices,and other consumer products ready for market.
We assemble ruggedized enclosures，mil-spec connectors,and mission-critical hardware with full traceability and documentation.
Showcase of Our Bent Parts
Explore a selection of high-quality parts we have manufactured for our clients, showcasing our precision bending and fabrication capabilities.
Quality in Every Angle
Material Certification & Inspection
We start with certified materials from trusted suppliers. All incoming stock is verified against specifications to ensure it meets the required standards for your project.
In-Process Control
Our operators perform first-article inspections and regular checks throughout the bending process using digital protractors and precision gauges to maintain angular accuracy.
Final Inspection & Reporting
Every completed part undergoes a final quality check against your drawings. We can provide full inspection reports, including dimensional data and material certificates, upon request.
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Inquiry & FAQs
We’ve answered some of the most common questions our customers ask about our high-precision laser cutting services.
We guarantee that all the files and pictures you upload will be kept confidential and no customer personal information will be disclosed.
Bending typically refers to creating straight-line bends (like V-bends), while forming can involve more complex, non-linear shapes created with stamping dies. We specialize in both, but this service focuses on precision bending.
Springback is the tendency of metal to return to its original shape after bending. Our skilled operators and modern CNC machines anticipate this effect by slightly over-bending the material, ensuring the final angle is precise.
This is the shortest possible leg that can be formed next to a bend. As a general rule, it should be at least four times the material’s thickness to prevent distortion and ensure a quality bend.
Yes, it is possible, but it carries a risk of the coating cracking or flaking at the bend line. For best results, we strongly recommend applying finishes like powder coating after the bending process is complete.
Bend deduction is a value subtracted from the flat pattern to account for the material stretching during bending. You don’t need to calculate it; simply provide a 3D model, and our software will create the perfect flat pattern.
A hem is a type of bend where the edge of the sheet is folded back over itself. This is done to create a safe, smooth edge and to increase the stiffness of the part.
We prevent cracking by ensuring the inside bend radius is appropriate for the material type and thickness. Forcing too tight of a radius is the most common cause of cracking, which our DFM analysis helps to avoid.
Yes, it’s highly important. Bending “with the grain” can cause cracking, especially in certain materials. We always orient parts on the sheet to ensure bends are made “across the grain” for maximum strength.
Air bending is the most common method where the punch presses the workpiece into the V-die, but it doesn’t bottom out. The final angle is determined by how far the punch descends, offering great flexibility with minimal tooling.
For the most accurate quote, please provide a 3D CAD model (like STEP), a 2D drawing (PDF/DXF) indicating critical dimensions, the material type, desired quantity, and any required finishes.
Our standard tolerance for angles is ±0.5 degrees and for linear dimensions is ±0.010 inches. We can often achieve even tighter tolerances upon request, which should be specified in your drawing.
Yes, we have a range of press brakes to handle various thicknesses. Our capabilities table (Module 5) provides general guidelines, but feel free to contact us with your specific requirements.
We can provide detailed FAI reports for your project to verify that the initial parts meet all of your specifications before proceeding with a full production run.
Typical lead times for standard projects range from 5 to 10 business days. This can vary based on part complexity, quantity, and material availability, but we always provide a firm delivery date with your quote.
Ready to Start Your Project?
Get a free quote and design for manufacturability analysis,
