Stainless Steel Pipe for Packaging Machinery

Shuangsen Pipes is one of Stainless Steel Pipe for Packaging Machinery manufacturers and suppliers in China. We can provide professional service and better price for you. If you interested in our products, please contact with us. We follow the quality of rest assured that the price of conscience, dedicated service.
Specification:10*10mm~150*150mm(square pipe)
20*10mm~150*100mm(rectangular tube)
Length: 3500mm~7500mm(regular length: 6000mm)
Wall thickness: 0.40mm~3.5mm
Standard: ASTM A554; GB/T 12770; JIS G3446

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Product Description

Shuangsen Metal Technology, an experienced stainless steel pipe supplier, engineers precision stainless steel pipe for packaging machinery. The product utilizes diamond mold forming to guarantee straight R-corners on square tubes, while inline nitrogen protection ensures a robust, oxidation‑free weld path. Capable of withstanding over 700 kg pressure and enduring 1000‑hour salt spray testing (surface zero corrosion), this equipment demonstrates exceptional durability. Tight outside diameter tolerance facilitates reliable grip‑ring connections, supported by complete testing infrastructure for 100% leak‑free integrity. Material grades 304, 316, and 316L address varied mechanical and chemical demands. Compared to conventional offerings, the integrated online roundness control and bright annealing process elevate consistency, making Shuangsen's welded tubes a preferred choice for packaging support structures and fluid‑handling subassemblies.

Core Manufacturing Technology & Dimensional Precision

Diamond Mold Forming & Square Tube Integrity

Proprietary diamond mold tooling shapes the stainless steel strip into precise square/rectangular profiles. This method achieves an exceptionally straight R‑corner, eliminating irregular radius variation. The resulting geometry offers uniform load distribution, critical for packaging machinery support structures where alignment repeatability is essential.

Full Nitrogen Shielded Welding

The stainless steel pipe for packaging machinery entire welding path is protected by high‑purity nitrogen atmosphere. This prevents oxidation and porosity along the seam, producing a weld bead with strength comparable to the base material. The weld path is precisely located at the corner of the tube, optimizing structural rigidity for dynamic packaging equipment.

Technical Parameter	Specification / Capability	Impact on Packaging Equipment
Welding method	Full nitrogen protection, inline autogenous weld	Oxide‑free seam enhances fatigue resistance under cyclic loads
Pressure threshold	≥ 700 kg (sustained)	Confident use in heavy‑duty support frameworks
Salt spray resistance	1000 hours – no surface corrosion	Reliable in washdown or humid packaging environments
OD tolerance control	Low deviation, optimized for grip‑ring fitting	Simplifies assembly, guarantees leak‑free connections

stainless steel pipe for packaging machinery

Material Grades & Corrosion Performance

Chemical Composition & Mechanical Properties

The Stainless Steel Pipe for Packaging Machinery employs three primary austenitic grades, each selected for compatibility with packaging industry demands. Controlled chemistry ensures consistent weldability and passivation.

Mark	C max	Cr	Ni	Mo	Tensile (MPa)
304	0.07	17-19	8-11	—	≥520
316	0.08	16-18	11-14	2-3	≥520
316L	0.03	16-18	12-15	2-3	≥480

Elongation for all grades ≥35%. The low carbon content of 316L minimizes intergranular corrosion risk after welding.

Application Mapping by Grade

304Purified water lines, air piping, medical gas circuits, general hot water – typical for packaging facility utilities.

316Environments requiring higher pitting resistance, such as beverage processing conveyors or cleaning‑agent contact zones.

316LSea water exposure or extreme chloride conditions; also preferred for as‑welded structures in aggressive packaging atmospheres.

Surface Finishing & Quality Verification

Mechanical Polishing Process

Available surface roughness ranges from 180# to 400# (satin finish) and mirror polish between 400# and 800#. Consistency is monitored through surface roughness detection instruments, ensuring that every length of this equipment meets the aesthetic and cleanability requirements of packaging machinery frames.

Inline Inspection & Leak Integrity

Complete testing equipment validates 100% leak‑free performance. Combined with online roundness control and internal weld bead leveling, the product maintains extremely low outside diameter variation. This enables secure grip‑ring connections without additional machining, reducing assembly time for packaging OEMs.

Testing Method: Surface roughness detection + pressure decay

Weld Integrity: Online internal bead leveling technology

Heat Treatment: Online bright solid solution annealing

Production Excellence & Facility Capabilities

The manufacturing infrastructure integrates 133 complete sets of industrial welded pipe assembly lines. Three advanced systems are embedded directly into production, setting this equipment apart from standard commercial alternatives.

Online Roundness Control

Active monitoring adjusts forming parameters to maintain consistent OD, critical for telescoping or clamp‑style assembly in packaging structures.

Internal Weld Leveling

The inner bead is smoothed in‑line, reducing flow turbulence and eliminating crevice corrosion initiation points.

Bright Solid Solution Annealing

Rapid, controlled heating restores metallurgical structure without surface oxidation, preserving corrosion resistance.

stainless steel pipe for packaging machinery

Why This Solution Outperforms Standard Alternatives

Integrated R&D Heritage

Over 25 years specializing in thin‑wall stainless steel piping systems. The team continuously refines diamond mold geometry and welding parameters based on real‑world packaging line feedback.

Certified Multi‑System Compliance

Manufacturing processes are governed by ISO9001, ISO14001, ISO45001, and ISO13485. This multi‑disciplinary certification ensures consistent quality, environmental stewardship, and occupational safety.

Proven in AI Cooling & Infrastructure

Collaborative deployments with technology leaders like Huawei and Envicool for AI data‑center cooling circuits demonstrate the reliability of this product under continuous thermal cycling.

Shuangsen Metal Technology

A recognized "National Specialized, Refined, Unique and New" Little Giant Enterprise and National High‑tech Enterprise. The brand is committed to advancing stainless steel pipeline systems through continuous innovation, independent R&D, and rigorous manufacturing protocols. Every piece of equipment reflects the dedication to building a globally respected Chinese national pipeline brand.

Zhejiang Product Manufacturing Certified | ISO 9001 · 14001 · 45001 · 13485

Engineered for demanding support structures and fluid networks — Shuangsen stainless steel pipe for packaging machinery delivers measurable durability and precision.

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Contact Info

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Address

No.66, A Area, Daitoucai Industrial Zone, Zeguo Town, Wenling City, Taizhou, Zhejiang Province, China
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Tel

+86-13586268836
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E-mail

sales@shuangsenss.com

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