Thickened hot-dip galvanized dairy farming equipment limit fence

Production Process: Core CNC Metal Sheet Bending + Dairy-Specific Auxiliary Processes

The production of our thickened hot-dip galvanized dairy limit fence parts takes precision CNC metal sheet bending as the core process, complemented by welding and hot-dip galvanizing to meet the harsh service conditions of dairy farms. The detailed steps of the metal sheet bending process are elaborated as follows:

1. Step 1: Raw Material Selection & Pre-Inspection - We select thickened carbon steel or alloy steel sheets (3.0mm-10.0mm) tailored for dairy farming applications, such as Q235, Q355 and alloy steel. Each sheet undergoes strict quality inspection, including chemical composition analysis (to ensure material strength), thickness uniformity check (tolerance ±0.1mm) and surface defect detection (no rust, cracks or impurities). Qualified sheets are then cut into preliminary sizes using high-precision laser cutting machines, matching the dimensions specified in the custom drawings.

2. Step 2: Pre-Bending Surface Treatment - The cut sheet edges are deburred using mechanical polishing equipment to eliminate sharp corners, which prevents scratches on dairy cows and operators during farm use. Next, the sheet surfaces are cleaned via degreasing and derusting processes to remove oil stains, oxide layers and dust—this step is crucial for enhancing bending precision and ensuring the adhesion of the subsequent hot-dip galvanized layer. For thick sheets (above 6.0mm), we perform moderate preheating (50-80℃) on the intended bending areas to reduce internal stress and avoid material deformation during bending.

3. Step 3: CNC Bending Setup & Positioning - The pretreated sheets are clamped firmly on the workbench of our CNC bending machines (35 tons-400 tons). Our technicians input key parameters into the intelligent control system, including bending angle, bending radius, sheet thickness and the number of bending stations. The system automatically adjusts the gap between the upper and lower dies and activates the angle compensation function to ensure the target bending precision (±0.5°). A trial bending is conducted on a sample sheet to verify parameter accuracy before mass processing.

4. Step 4: Multi-Stage Precision Bending Execution - The CNC bending machine performs step-by-step bending based on the preset parameters. For complex-shaped parts (e.g., L-type limit columns, U-type crossbars, multi-angle fence connectors), multi-station bending is implemented sequentially. The machine’s real-time monitoring system tracks the bending angle and sheet deformation throughout the process, making dynamic parameter adjustments to maintain angle repeatability (±0.1°). This staged approach ensures the structural integrity of thickened sheets and avoids excessive stress concentration.

5. Step 5: Post-Bending Inspection & Trimming - Finished bent parts are removed from the machine and inspected using a Coordinate Measuring Machine (CMM) to verify overall dimensional tolerance (±0.2mm-±0.5mm), bending angle accuracy and flatness (≤0.3mm/m). Any non-conforming parts undergo secondary trimming and re-bending. Finally, a second deburring process is carried out to ensure all edges are smooth, and the parts are cleaned to prepare for subsequent auxiliary processes.

Auxiliary Processes: After bending, two key auxiliary processes are applied to enhance product performance: ① Automatic Argon Arc Welding: Complex parts (e.g., fence node connections, base reinforcements) are welded to improve structural stability, with weld strength tested to withstand ≥500kg load. ② Hot-Dip Galvanizing: Parts are immersed in molten zinc (450-460℃) for full coating, ensuring a galvanized layer thickness ≥85μm—this process provides superior corrosion resistance against manure, moisture and chemicals in dairy farms. A final quality check includes salt spray testing (≥1000 hours) and load-bearing verification to ensure product qualification.

Product Classification by Industry, Material & Part Type

Key Technical Parameters (Precise & Customizable)

Our Core Competitiveness (Data-Driven & Credible)

• Professional Technical Team: 15+ senior engineers with over 10 years of experience in metal bending and dairy equipment manufacturing; 24/7 technical support for custom design and process optimization; 6-10 workdays for custom mold development, specializing in thickened sheet bending solutions.

• Strong Production Capacity: Equipped with 20+ high-performance CNC bending machines (35-400 tons) optimized for thickened sheets, paired with 15+ supporting laser cutting, welding and galvanizing lines; annual production capacity of 3.5 million+ parts; 99% on-time delivery rate for global orders.

• Strict Quality Management: Full-process quality control from raw material inspection to final product testing; 99.8% product qualification rate; certified with ISO 9001:2015 and CE (compliant with European dairy equipment standards).

• Integrated Supply Chain: Long-term strategic cooperation with certified steel suppliers (e.g., Baoshan Iron & Steel); independent purchasing, processing and galvanizing chain ensures stable material supply and cost advantage; 100% raw material traceability.

• Global Shipping & After-Sales: Professional foreign trade team proficient in FOB/CIF terms; partnerships with DHL/FedEx/Maersk for worldwide door-to-door delivery; complete customs clearance documents provided.  24-hour after-sales response.

Credibility Enhancement

• Served 260+ B2B clients across 40+ countries (Europe, North America, Southeast Asia, Australia), including 12+ global leading dairy equipment manufacturers and top 20 large-scale dairy ranches.

• Production Process Visualization: Provide live factory tours and detailed bending process recordings (parameter setting, multi-step bending, quality inspection) upon request; ISO 9001:2015-certified workshop welcomes on-site audits.

• Third-Party Certification: SGS/TUV test reports available for galvanized layer thickness, corrosion resistance (salt spray test ≥1000 hours), bending strength and load-bearing capacity; full batch test reports and raw material certificates provided for each order.

• 4 consecutive years of 0 defect feedback in dairy limit fence parts cooperation; highly recognized for product durability and adaptability to harsh dairy farming environments.

Send your custom drawings (CAD/STEP/IGES files) or detailed requirements (ranch scale, fence dimensions, load-bearing needs) now! We will provide a personalized process plan, quotation and sample proposal within 24 hours.

FAQ

Q1: How do you ensure quality?

A: We have a fully equipped quality inspection center, complete testing equipment, and a strict ISO 9001 quality management system. Each sheet metal stamping part is tested for dimensions, mechanical properties, and surface finish before delivery to ensure stable quality and compliance with international standards.

Q2: What are the prices of the Sheet Metal Stamping Parts?

A: Prices depend on several factors, including raw materials, tolerances,  surface treatments, and order quantity. Since Xinlongji Metal  owns and manages integrated stamping factories, we can provide competitive real-time quotations while maintaining stable product quality for every batch of custom sheet metal parts.

Q3: How can I get a better price?

A: All our prices are based on high-quality standards. With the same material and precision, our sheet stamping parts are more cost-effective because of supply chain integration. Larger orders or long-term cooperation projects can help you obtain even better prices and stable supply support.

Q4: What's the MOQ for Sheet Metal Stamping Parts?

A: MOQ depends on product size, complexity, and raw material type. You can send us 2D or 3D drawings, and we will evaluate production feasibility and confirm the MOQ. Xinlongji Metal guarantees flexibility for trial runs and supports small batches for initial testing.

Q5: What is your delivery cycle?

A: Delivery time is typically around 30 days. Complex parts or larger orders may require slightly longer schedules. Our integrated factories coordinate production, packaging, and shipment efficiently. In most cases, we can complete orders within 45 days while ensuring consistent quality and timely delivery.

Q6: What surface finishes do you offer?

A: We offer powder coating, galvanizing, anodizing, sandblasting, and more through long-term partnerships with surface treatment factories. Surface finishing choices depend on material, environment, and functional requirements. Xinlongji Metal provides the most suitable solution for every sheet metal stamping part based on its intended application.

Q7: Which countries do you ship to?

A: Qingdao Xinlongji Metal Manufacturing Co., Ltd. exports sheet metal stamping parts to more than 60 countries across Europe, North America, South America, Africa, and Southeast Asia. Our logistics team ensures timely shipping and helps clients manage customs procedures and freight costs effectively for each destination.

Q8: What size Sheet Metal Stamping Parts can you produce?

A: Our 800-ton punching machine supports various part sizes. The feasible dimensions depend on material, thickness, shape, and process complexity. You can send us 2D or 3D drawings (NDA available), and we'll evaluate production feasibility and provide a cost-effective solution for your project.

Q9: What information do I need to provide to get a quote?

A: Please provide:

2D/3D drawings or samples;

Quantity and delivery terms;

Material, surface treatment, tolerance, and weight.

The more detailed the information, the faster we can offer an accurate quotation for your custom sheet metal stamping parts project.

Q10: What payment methods and delivery terms do you support?

A: We support  T/T, and other payment methods. Delivery terms include FOB, CIF, and EXW. If you have specific requirements, we'll assess them carefully to ensure smooth cooperation and secure international transactions for all sheet metal parts orders.

Q11: Is  Xinlongji Metal  a factory, manufacturer, or trading company of Sheet Metal Stamping Parts?

A: Xinlongji Metal is a professional OEM sheet metal stamping parts manufacturer with strong factory resources and integrated supply chain management. Our team covers engineering, procurement, production, logistics, and after-sales to provide one-stop metal stamping solutions for global customers.