Precision CNC Bending Services in China
Forming Precise Angles and Complex Geometries for High-Quality Enclosures, Brackets, and Chassis.
- ISO 9001 Certified
- High Repeatability
- Advanced Tooling
Your Expert Partner for Precision Bending
Celerity Precision is a leading manufacturing partner in China specializing in high-precision CNC bending and forming. This critical fabrication process uses a CNC press brake to accurately bend sheet metal into complex 3D shapes. Bending is fundamental to creating the structural backbone of countless products, from sturdy industrial enclosures to sleek electronic chassis. Our facility is equipped with modern, multi-axis press brakes and a vast tooling library, enabling our skilled technicians to deliver parts with exceptional angular accuracy, consistency, and adherence to your most complex designs.
Advanced Forming Technology for Any Design
Our investment in the latest bending technology ensures we can produce parts that are not only accurate but also complex, meeting the demands of modern product design with efficiency and precision.
Multi-Axis CNC Press Brakes
Our fleet of CNC press brakes are the core of our bending capability. Computer-controlled backgauges and ram positioning allow us to form multiple bends on a single part with extreme precision and repeatability, ensuring every component in a production run is identical.
Extensive Tooling Library
We maintain a large and diverse library of punches and dies, including various V-dies, gooseneck punches for clearing existing flanges, and hemming tools. This allows us to create a wide range of bend radii, offsets, and complex features without the need for expensive custom tooling.
Complex Multi-Bend Forming
We specialize in forming parts with intricate and challenging geometries. Our offline programming and simulation software allows us to plan the optimal bend sequence to avoid collisions and ensure manufacturability, even for the most complex enclosures and chassis.
A Full Spectrum of Formable Materials
Metal
A lightweight, versatile metal with an excellent strength-to-weight ratio and natural corrosion resistance.
- Available Grades: 6061, 7075, 5052, 2024, 6063, 6082, 5083
- Common Finishes: As Machined, Anodizing, Powder Coating, Sand Blasting, Chromate (Alodine)
Copper
Valued for its exceptional electrical and thermal conductivity, making it the top choice for heat sinks and electrical components.
- Available Grades: C101 (OFHC), C110 (ETP)
- Common Finishes: As Machined, Electropolishing, Plating, Clear Coat
Brass
An alloy with outstanding machinability and a natural, gold-like appearance, ideal for fittings and decorative parts.
- Available Grades: C360
- Common Finishes: As Machined, Polishing, Plating, Brushing
Bronze
Known for its low-friction properties and durability, often used for bearings, bushings, and marine hardware.
- Available Grades: C932, C954
- Common Finishes: As Machined, Tumbling
Steel
A strong, durable, and cost-effective material ideal for high-stress and industrial applications.
- Available Grades: Mild Steel (1018, 1020), Alloy Steel (4140, 4340), Tool Steel
- Common Finishes: Black Oxide, Zinc Plating, Powder Coating, Painting
Stainless Steel
Offers excellent strength and superior corrosion resistance, making it ideal for medical, marine, and food-grade applications.
- Available Grades: 303, 304/304L, 316/316L, 17-4 PH, 416, 420
- Common Finishes: Passivation, Electropolishing, Brushed Finish, As Machined
Magnesium
An extremely lightweight metal, ideal for applications where every gram counts.
- Available Grades: AZ31, AZ91
- Common Finishes: Chromate Conversion Coating
Titanium
A high-performance metal with an unmatched strength-to-weight ratio and excellent biocompatibility.
- Available Grades: Grade 2, Grade 5 (Ti-6Al-4V)
- Common Finishes: As Machined, Anodizing (for color), Sand Blasting
Plastic
ABS
A tough, impact-resistant, and cost-effective thermoplastic ideal for housings, enclosures, and prototypes.
Common Finishes: As Machined, Sand Blasting, Painting
PC (Polycarbonate)
A strong, transparent plastic with excellent impact resistance and heat tolerance.
- Common Finishes: As Machined, Vapor Polishing, Painting
PLA
A biodegradable thermoplastic derived from renewable resources, commonly used for rapid prototyping.
Common Finishes: As Machined, Painting
PMMA (Acrylic)
A rigid, transparent plastic with excellent optical clarity, often used as a lightweight alternative to glass.
Common Finishes: As Machined, Vapor Polishing, Flame Polishing
POM (Delrin/Acetal)
A low-friction, high-stiffness engineering plastic with excellent dimensional stability, ideal for gears and bearings.
Common Finishes: As Machined
PA (Nylon)
A durable and versatile plastic with good wear resistance and chemical resistance.
- Available Grades: PA6, PA66
- Common Finishes: As Machined
PE (Polyethylene)
A common, chemically resistant plastic family available in various densities for different applications.
Common Finishes: As Machined
PEEK
A high-performance polymer with exceptional mechanical strength, chemical resistance, and high-temperature stability.
Common Finishes: As Machined
PP (Polypropylene)
A lightweight plastic with excellent chemical resistance and high elasticity, often used for living hinges.
Common Finishes: As Machined
HDPE
A rigid, strong version of PE with excellent impact strength and a waxy surface feel.
Common Finishes: As Machined
HIPS
A low-cost, rigid plastic that is easy to machine, often used for pre-production prototypes.
Common Finishes: As Machined, Painting
LDPE
A soft, flexible, and tough version of PE, known for its outstanding flexibility.
Common Finishes: As Machined
PBT
An engineering thermoplastic with good stiffness, dimensional stability, and resistance to chemicals and heat.
Common Finishes: As Machined
PPA
A high-performance polyamide with superior strength, stiffness, and heat resistance compared to standard nylon.
Common Finishes: As Machined
PAI (Torlon)
An extremely strong and stiff high-performance plastic that retains its properties at very high temperatures.
Common Finishes: As Machined
PET
A strong, stiff engineering plastic with good chemical resistance and excellent wear properties.
Common Finishes: As Machined
PPS
A high-performance thermoplastic with outstanding chemical resistance and dimensional stability at elevated temperatures.
Common Finishes: As Machined
PS (Polystyrene)
A clear, hard, and brittle low-cost plastic, often used for general-purpose prototypes.
Common Finishes: As Machined, Painting
PVC
A rigid, durable, and cost-effective plastic with excellent resistance to chemicals and moisture.
Common Finishes: As Machined
PTFE (Teflon™)
Known for its extremely low coefficient of friction, chemical inertness, and high-temperature resistance.
Common Finishes: As Machined
UPE (UHMW)
An extremely dense and tough version of polyethylene with exceptional abrasion and impact resistance.
Common Finishes: As Machined
Bakelite
A hard, dense, and heat-resistant thermoset plastic with good electrical insulating properties.
Common Finishes: As Machined
FR-4
A glass-reinforced epoxy laminate valued for its high strength and excellent electrical insulating properties.
Common Finishes: As Machined
Have a Design Ready? Let's Make It Real.
Why Choose Celerity Precision
Exceptional Angular Accuracy
Our modern CNC press brakes with precision-ground tooling allow us to hold tight angular tolerances (typically ±0.5 degrees), ensuring your parts fit together perfectly.
Unmatched Part-to-Part Repeatability
The computer-controlled process guarantees that from the first piece to the last in a high-volume run, every bend is in the exact same location with the exact same angle.
Complex Multi-Bend Capabilities
With multi-axis backgauges and advanced simulation software, we can efficiently produce parts with numerous bends in various orientations, saving you time and cost.
Expert Design for Manufacturability (DFM)
We provide critical feedback on your designs, advising on optimal bend radii, material selection, and feature placement to prevent cracking and ensure a successful outcome.
Integrated Fabrication Solution
We are your true one-stop shop. We can seamlessly take your project from laser cutting the flat pattern to CNC bending, welding, hardware insertion, and final finishing.
Cosmetic Finish Preservation
Our operators are skilled in using techniques and tooling (such as polyurethane film) to minimize die marks and protect the cosmetic appearance of your parts during the bending process.
Advantages of the Bending Process
Creates Strong, Monolithic Structures
Forming a part from a single sheet of metal creates strong corners without the need for welding, resulting in a more robust and often lighter component.
Cost-Effective for 3D Part Creation
CNC bending is a highly efficient and economical way to create three-dimensional structures compared to fabricating and welding separate pieces or machining from a solid block.
High Speed and Repeatability
The CNC process is fast, accurate, and repeatable, making it ideal for both rapid prototyping and high-volume production runs.
Enables Lightweight Designs
Complex and rigid structures can be created from thin, lightweight sheet materials, which is critical for applications in aerospace, automotive, and electronics.
Aesthetically Pleasing Corners
Formed corners are smooth and clean, providing a more professional and high-end appearance than welded joints, especially for enclosures and covers.
Versatility in Materials
The process is suitable for a wide range of common metals, allowing for great flexibility in material selection based on strength, weight, and cost requirements.
From Flat Sheet to Formed Part in 4 Simple Steps
Submit Design & Get Quote
Upload your 3D models (STEP) or 2D flat patterns (DXF). Our team provides a detailed quote and DFM feedback within 24 hours.
DFM Review & Order Confirmation
We confirm the bend sequence, tooling, and radii. Once you approve, we program the press brake.
Precision Bending
Your laser-cut flat patterns are expertly formed on our CNC press brakes by skilled operators.
Inspection & Global Delivery
Every part is rigorously inspected for dimensional and angular accuracy before being securely packaged and shipped.
Bending FAQ
What is a CNC press brake?
It is a machine that uses a punch (upper tool) and a die (lower tool) to bend sheet metal. The “CNC” aspect means that the position of the material (via the backgauge) and the depth of the bend are computer-controlled for precision.
What is a "bend radius" and why is it important?
The bend radius is the inside radius of the corner. It’s critical because if the radius is too small for the material and thickness, the metal can crack on the outside of the bend. Our standard is typically 1x the material thickness.
Will the bending process leave marks on my parts?
Bending can sometimes leave faint lines or marks from contact with the die. For cosmetic parts, we can use special tooling or protective films to minimize these marks.
What are your standard tolerances for bends?
We typically hold angular tolerances of ±0.5 degrees and dimensional tolerances on flange length of ±0.2mm. Tighter tolerances are often possible.
What is "springback"?
Springback is the tendency of a metal to spring back slightly after being bent. Our modern CNC press brakes automatically calculate and compensate for springback to achieve the correct final angle.
Can you bend very thick or very thin material?
We can bend a wide range of thicknesses. Our capability depends on the material’s strength and the length of the bend. Please send us your specific requirements for a capability review.