Roll bending
ATA’s Roll bending process delivers smooth, consistent and high-precision arc, cylindrical or conical forming results, which perfectly preserves the corrosion resistance and structural integrity ofStainless steel sheet metal for long-term reliable use in various industrial scenarios.
Our Roll bending technology is widely applied in pipeline, tank and structural component manufacturing, fully complying with international standards such as ASME, ASTM and EN, and can achieve precise control of arc radius, roundness and forming consistency.
Service
ATA Roll bending Service
Roll bending is a precision metal forming process that uses professional rolling equipment to bend metal plates or profiles into continuous curved shapes without damaging the material’s inherent mechanical properties.
The process is completed by adjusting the roller position, pressure and speed of the roll bending machine according to the material type, thickness and forming requirements to ensure uniform and accurate bending results.
ATA provides one-stop Roll bending services, covering material selection, process design, precision rolling, post-processing and quality inspection, to meet the customized forming needs of different industries and customers.
Capability&Advantages
ATA Roll bending Capability
Roll bending is suitable for a variety of high-demand user scenarios, including the production of Stainless steel pressure vessel, Stainless steel water tank, industrial pipeline elbows, and building structural arcs, adapting to the strict requirements of petroleum, chemical, construction and shipbuilding industries.
ATA has strong capabilities in Roll bending, with a professional technical team and advanced equipment that can handle stainless steel plates of different thicknesses (0.8mm-40mm) and widths (up to 2800mm), and adopts adaptive rolling technology to avoid material wrinkling, rebound and surface scratches, ensuring that the forming precision error is within ±0.15mm and the product quality is stable and reliable.
ATA stainless steel Roll bending standard
ATA stainless steel roll bending standard requires strict control of workpiece size, roll bending precision, surface quality, rebound and tool parameters, which is achieved by using high-precision roll bending equipment, optimizing roll bending pressure, speed and rebound compensation parameters, selecting suitable roll bending tools and conducting pre-inspection and post-treatment of the workpiece surface.
Standards | Description |
Workpiece thickness range | Cold-rolled stainless steel plate: 0.3-3.0mm; Hot-rolled stainless steel plate: 1.5-15mm; Thickness deviation ≤±0.3mm, no obvious thickness unevenness |
Workpiece width range | Applicable width: 500-1800mm (including trimmed and untrimmed edges); Common widths: 1000mm, 1219mm, 1500mm, 1800mm; Width deviation ≤±1.5mm |
Roll bending diameter | Minimum roll bending diameter: 50mm; Maximum roll bending diameter: 2000mm; Diameter tolerance ±0.5mm; No obvious ellipticity after roll bending |
Roll bending roundness | Roundness deviation ≤0.3mm/m; No local bulging or depression on the roll-bent surface; The maximum deviation between any two points on the circumference ≤0.4mm |
Roll bending straightness | Straightness deviation ≤0.2mm/m; No warping, twisting or bending of the roll-bent plate; The overall straightness meets the assembly requirements |
Surface quality after roll bending | No scratches, indentations or oxidation marks; Surface roughness Ra ≤6.3μm; No peeling of passivation layer; For 2B, BA surface, no damage to surface gloss |
Roll bending rebound control | Rebound rate ≤1.2%; Rebound compensation is carried out according to material thickness and roll bending diameter, compensation range 0.5-2.0mm |
Applicable stainless steel grades | Suitable for 201, 304, 316L, 321, 430 and other common grades; No obvious rust, oil stains or impurities on the surface before roll bending |
Roll bending pressure requirement | Pressure matches material thickness and width: 10-60MPa for 0.3-3mm, 60-250MPa for 3-15mm; Pressure is uniformly applied to avoid local deformation |
Roll bending tool requirement | Roller surface is smooth, no burrs or scratches; Roller hardness ≥HRC62; Roller radius matches the minimum roll bending diameter of the workpiece |
End face perpendicularity | Perpendicularity deviation between end face and roll bending surface ≤0.15mm/m; No beveling or inclination of the end face after roll bending |
Roll bending splicing requirement | Splicing gap ≤0.1mm; Splicing position is smooth, no step difference; Splicing strength is not less than 90% of the base material strength |
Surface treatment after roll bending | According to surface type (NO.1, 2B, BA, HL), corresponding treatment is carried out; No residual oxide scale, clean surface and uniform gloss |
Roll bending speed requirement | Roll bending speed: 0.5-5m/min; Speed is adjusted according to material thickness and roll bending diameter to ensure roll bending stability |
Material Selection for the Process
Roll bending Material Selection
ATA’s Roll bending process has excellent compatibility with various stainless steel materials, which can realize high-precision forming while maintaining the material’s corrosion resistance and toughness, and optimize the rolling process to improve production efficiency and material utilization rate.
Stainless Steel Type | Roll Bending Advantage | Application Scope |
|---|---|---|
Excellent ductility, small rebound, easy forming | Water treatment, daily equipment | |
Strong corrosion resistance, stable forming performance | Chemical, marine engineering | |
High strength, no obvious deformation after rolling | Pressure vessels, oil pipelines |
Roll bending Quality Control
ATA adheres to the whole-process quality management concept in the Roll bending process, from the incoming inspection of stainless steel materials to the final inspection of finished products, strictly implementing international industry standards to ensure that each batch of products meets customer design requirements; we use professional testing equipment and scientific testing methods to conduct comprehensive inspections on the rolling quality, and the specific testing methods are as follows:
- Arc radius test: Use a professional radius gauge to detect the arc radius of the rolled product, ensuring that it is completely consistent with the design drawings and meeting the assembly requirements with other components.
- Roundness test: For cylindrical rolled products, use a laser roundness measuring instrument to detect the circularity, ensuring that the error is within the allowable range and avoiding unevenness.
- Roll bending surface inspection: Check the surface of the rolled product for scratches, wrinkles and indentations, and ensure that the surface finish meets the brushed stainless steel finish or customized standards.
- Mechanical performance test: For key rolled components, conduct tensile and hardness tests to verify that the mechanical properties of the material after rolling meet the industry standards and service life requirements.
Why Choose ATA Roll bending
ATA’s Roll bending service integrates professional technology, advanced equipment and thoughtful after-sales support, providing customers with high-quality, efficient and cost-effective curved forming solutions.
Industry Advantage
ATA has more than 10 years of experience in roll bending processing, deeply understands the forming needs of various industries, and has accumulated a large number of successful cases in Oil, Gas & Chemical Industry and Shipbuilding & Offshore Engineering.
Equipment Advantage
We are equipped with imported CNC roll bending machines and automatic feeding systems, which can realize automatic parameter adjustment and continuous rolling, improving forming precision and production efficiency.
Service Advantage
Provide 24-hour technical consultation, customize roll bending solutions according to customer drawings, and provide after-sales maintenance guidance to ensure the smooth use of products.
ATA Stainless steel fabrication Center
ATA Stainless Steel fabrication: One-Stop Precision Solutions for Your Stainless Steel Needs.
Material Selection for the Process
Roll bending Multi-industry Application Solutions
Oil, Gas & Chemical Industry: In the chemical industry, Roll bending is used to produce Stainless steel reactor cylinders and chemical pipeline elbows, which have excellent corrosion resistance to chemical media and ensure the safe and stable operation of equipment.
Water & Wastewater Treatment: Used in the production of Stainless steel storage tank and water treatment equipment shells, the roll bending process ensures the tightness and corrosion resistance of the tank body, adapting to the wet working environment.
Shipbuilding & Offshore Engineering: Applied to the production of marine stainless steel pipelines and hull structural components, the precise Roll bending technology ensures the structural strength and seawater corrosion resistance of the components, meeting the harsh marine environment requirements.
Construction & Municipal Engineering: Used to produceStainless steel guardrail arcs, bridge decorative arcs and water supply pipeline components, the roll bending process makes the product appearance beautiful and durable, adapting to outdoor harsh environments.
Food & Beverage Industry: Used in the production of Stainless steel mixing tank cylinders and food storage tank edges, the roll bending process ensures that the tank body is smooth and free of dead corners, meeting food hygiene standards and being easy to clean.
Why choose ATA for custom stainless steel fabrication?
ATA provides professional custom stainless steel manufacturing services covering demand communication, scheme evaluation, prototype trial, mass production and quality inspection before delivery.
Speech bubble
Provide drawings/samples
/requirement descriptions, and dedicated engineers will provide 1-on-1 docking
Document
process evaluation, material selection, cost accounting, construction period estimation, and issuing customized plans
Sample
Proofing and trial production: free/paid proofing, full sample testing, customer confirmation of sample sealing
Factory
mass production according to sample sealing standards, full-process quality control inspection
Checkmark
final inspection of finished products, issuance of test reports, customized packaging and delivery
Roll bending FAQS
Q1: How can ATA’s Roll bending process meet the customized arc and radius requirements of different customers?
A1: ATA has a professional process design team that can calculate and adjust the roller parameters of the roll bending machine according to the customer’s design drawings (arc, radius, material thickness), and conduct pre-production sample rolling to optimize the process in time, ensuring that the finished product fully meets the customized requirements.
Q2: In mass production of Roll bending, how does ATA ensure the consistency of product quality?
A2: We adopt fully automatic CNC roll bending equipment, store the optimized rolling parameters in the system, and implement standardized production operations; each batch of materials is subject to unified incoming inspection, and the finished products are sampled and inspected to ensure that each product has the same forming precision and quality.
Q3: For thick stainless steel plates (more than 15mm), can ATA achieve precise Roll bending and avoid material cracking?
A3: Yes, ATA is equipped with high-pressure CNC roll bending machines specially used for thick plates, and adopts step-by-step rolling and preheating treatment technology to reduce the internal stress of the material during the rolling process, effectively avoiding material cracking, and ensuring the forming precision and structural strength.
Q4: How does ATA shorten the production cycle of Roll bending while ensuring quality for urgent orders?
A4: We optimize the production scheduling plan, give priority to arranging urgent orders, and use automatic rolling equipment to improve production efficiency; at the same time, we simplify the inspection process on the premise of ensuring quality, and send professional technicians to follow up the whole process to ensure that the order is delivered on time without affecting the rolling quality.
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