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Changzhou Fenglan New Materials Co., Ltd.

Stainless Steel Gas Spring

-- Steady & Reliable Manufacturer --

Introduction

Stainless steel gas springs are the material-grade upgrade for environments where standard zinc-plated carbon steel cannot withstand corrosion, chemical exposure, or stringent hygiene requirements. The cylinder body, piston rod, and end fittings are manufactured from grade 304 or 316L stainless steel, making these springs exceptionally resistant to saltwater, cleaning agents, and oxidizing atmospheres.

Fenglan stainless steel gas springs are widely specified for marine, food-processing, pharmaceutical, and outdoor architectural projects. Despite the premium material, our efficient manufacturing process keeps lead times competitive, and every spring is pressure-tested and dimensional-inspected before shipment.

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Specifications

Cylinder Diameter 10 mm – 40 mm
Stroke Length 20 mm – 500 mm
Extension Force (F1) 50 N – 2,000 N
Stainless Steel Grade AISI 304 / AISI 316L (marine grade)
Operating Temperature -40°C to +100°C
Seal Material FKM (Viton®) for chemical resistance
Surface Finish Brushed, mirror-polished, or passivated
Corrosion Resistance Salt spray test ≥ 500 hours (ASTM B117)
Gas Charge High-purity nitrogen (99.99%)
Certifications ISO 9001 / REACH / RoHS / FDA-compliant materials available

Applications

  • Marine & Offshore: Boat hatches, engine compartment lids, and navigation console covers exposed to salt spray and humidity.
  • Food & Beverage Processing: Hygienic machine guards, hopper lids, and oven doors that require frequent washdown with aggressive detergents.
  • Pharmaceutical & Cleanrooms: Equipment enclosures, autoclave doors, and sterile-area panels that demand non-corrosive, non-contaminating components.
  • Outdoor Architecture: Benches, public storage units, and skylight mechanisms subject to year-round weather exposure.
  • Chemical Processing: Panels and covers in plants handling acids, alkalis, or other corrosive media where carbon steel would fail rapidly.

Advantages

  • Superior Corrosion Resistance: 316L marine-grade stainless withstands saltwater immersion and harsh chemical environments that destroy standard gas springs within months.
  • Hygienic & Cleanable: Smooth, non-porous stainless surfaces resist bacterial adhesion and tolerate steam cleaning, CIP/SIP cycles, and disinfectants.
  • Premium Aesthetics: Brushed or mirror-polished finish complements high-end architectural and consumer product designs.
  • Extended Service Life: No surface coating to chip or peel — the inherent corrosion resistance of stainless steel lasts the lifetime of the product.
  • Wide Temperature Tolerance: FKM seals allow operation from -40°C to +100°C, covering freezer rooms to oven-adjacent environments.
  • Lightweight vs. Alternatives: Delivers the same force output as a zinc-plated unit with only a marginal weight increase, keeping assemblies compact.

Payment & Shipping

We accept T/T (bank transfer), PayPal, Western Union, and L/C at sight for orders above USD 5,000. A 30% deposit is required upon order confirmation, with the 70% balance paid before shipment. All prices are quoted EXW or FOB Ningbo by default; CIF and other Incoterms are available upon request.

Standard lead time is 15–25 business days for stock items and 30–45 days for customized orders. We ship worldwide via sea, air, or express courier (DHL / FedEx / UPS). Full tracking information and packing lists are provided with every shipment. MOQ and bulk discounts are negotiable — please contact our sales team for a tailored quotation.

Frequently Asked Questions

  • Q: What is the difference between 304 and 316L stainless gas springs?
  • A: Grade 304 suits most indoor and light outdoor applications. Grade 316L adds molybdenum for enhanced resistance to chlorides and marine environments. Choose 316L for saltwater or chemical-processing use.
  • Q: Are these springs suitable for food contact applications?
  • A: The stainless steel body and FDA-compliant seal options make them appropriate for incidental food-contact environments. Please specify this requirement at the time of inquiry so we can confirm the correct seal material.
  • Q: Do stainless gas springs cost significantly more than standard ones?
  • A: Material cost is higher, but when factoring in replacement frequency and downtime in corrosive environments, stainless models typically deliver a lower total cost of ownership over a 5–10 year period.
  • Q: Can I get custom polished finishes for visible architectural installations?
  • A: Yes. We offer Ra ≤ 0.4 µm mirror-polished rods and cylinders. Custom laser engraving of part numbers or logos is also available for OEM clients.
  • Q: What is the salt spray test rating?
  • A: Our standard stainless gas springs pass ASTM B117 salt spray testing for ≥500 hours with no visible corrosion on the rod or cylinder surface.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
Changzhou Fenglan New Materials Co., Ltd.
ABOUT US
Quality is Our Core Competitiveness
Changzhou Fenglan New Materials Co., Ltd.
Founded in 2010, As China Stainless Steel Gas Spring Manufacturers and Stainless Steel Gas Spring Company. we are dedicated to manufacturing precision parts for automotive, industrial, and electrical applications. Backed by advanced manufacturing and R&D, we provide high-quality products and trusted solutions to our clients. We provide a wide selection of components to meet diverse industry needs: Electric Shafts: Drive shafts, coil motor shafts, servo motor shafts, water pump motor shafts, industrial motor shafts, and magnetic levitation motor shafts. Hardware: Precision parts for medical equipment, water heater coils, plumbing fittings, and various gas springs. Our commitment is to support our customers with reliable performance and long-term value.
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