In tank and silo systems, spiral stairs play an important role in terms of both functionality and safety. These stairs are often used to facilitate vertical access in confined spaces. Thanks to their spiral structure, they save space and also offer an aesthetic appearance.
STR-spi
Pretank
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| Product Description
In tank and silo systems, spiral stairs play an important role in terms of both functionality and safety.
These stairs are often used to facilitate vertical access in confined spaces.
Thanks to their spiral structure, they save space and also offer an aesthetic appearance.
| Product Structure
Material of flights, treads, stringers, rails and handrails made of 304 stainless steel.
Stair steps can be made of steel grating or chequered plate
Customized height, rungs, rungs dimensions, crosspieces and axles.
Left or right turn according to convenience.
Platforms and intermediate stringer
Exit and descent terminals to be chosen according to the needs indicated.
Prepared for intensive industrial use with resident and reinforced stainless steel finishes.
Stairs can be freestanding or follow the inside or outside of the silo and tank.
Radius, tread width and other data according to customer requirements.
| Product Features
Corrosion-Resistant Material
We use high-quality 304 stainless steel to ensure that the stairs can be used for a long time in harsh environments.
Heavy-Duty Structure
Heavy-duty structure, made of high-quality stainless steel with good corrosion resistance, less maintenance workload and long service life.
Safe and Reliable
The two ends of the step are equipped with non-slip checked plate, safety handrails on both sides, and a kick plate at the bottom,whic can ensure the safety of users.
Modular Design
Customizable stairs are crafted to meet the specific requirements of your site, utilizing modular construction methods that facilitate seamless installation. We provide entirely customized solutions to address all your access needs, regardless of the project's scale
Customization Design
Stairs with different heights, widths and spiral angles can be designed to suit available spaces and operational requirements and adjust the budget to your economic constraints without compromising quality and long-term performance.
Wide Application
Suitable for various industrial environments, such as chemical plants, food processing plants, storage tanks, buildings, warehouses and other high-altitude channel solutions.
| Customer Cases
| Product Description
In tank and silo systems, spiral stairs play an important role in terms of both functionality and safety.
These stairs are often used to facilitate vertical access in confined spaces.
Thanks to their spiral structure, they save space and also offer an aesthetic appearance.
| Product Structure
Material of flights, treads, stringers, rails and handrails made of 304 stainless steel.
Stair steps can be made of steel grating or chequered plate
Customized height, rungs, rungs dimensions, crosspieces and axles.
Left or right turn according to convenience.
Platforms and intermediate stringer
Exit and descent terminals to be chosen according to the needs indicated.
Prepared for intensive industrial use with resident and reinforced stainless steel finishes.
Stairs can be freestanding or follow the inside or outside of the silo and tank.
Radius, tread width and other data according to customer requirements.
| Product Features
Corrosion-Resistant Material
We use high-quality 304 stainless steel to ensure that the stairs can be used for a long time in harsh environments.
Heavy-Duty Structure
Heavy-duty structure, made of high-quality stainless steel with good corrosion resistance, less maintenance workload and long service life.
Safe and Reliable
The two ends of the step are equipped with non-slip checked plate, safety handrails on both sides, and a kick plate at the bottom,whic can ensure the safety of users.
Modular Design
Customizable stairs are crafted to meet the specific requirements of your site, utilizing modular construction methods that facilitate seamless installation. We provide entirely customized solutions to address all your access needs, regardless of the project's scale
Customization Design
Stairs with different heights, widths and spiral angles can be designed to suit available spaces and operational requirements and adjust the budget to your economic constraints without compromising quality and long-term performance.
Wide Application
Suitable for various industrial environments, such as chemical plants, food processing plants, storage tanks, buildings, warehouses and other high-altitude channel solutions.
| Customer Cases
| About Company
Pretank is established in 1971, it's the largest-scale and longest-history stainless steel vessels manufacturer in China,with 4000 staff, 666,000 m㎡ floor space and US$240 million annual sales. We have the most advanced technology, R&D capability in the industry,adopt solidworks and AutoCAD to design vessels, Engaged in formulation of National Standard in designing, producing, inspection and transportation.
53-Year History in Tank Fabrication
Prettech stainless steel tanks already used in 40 classifications,gather rich experiences and precipitate skills in varied industries,win 100,000 client’s trust
Guarantee Quality
- Ensure no leaks no rust, easy cleaning.
- All tanks are over engineered and heavy-duty made, lengthen tank service life.
- Stainless steel tanks produced by automatic and laser machines, reduce labor fault.
- Each tank is strictly tested and inspected before delivery.
- We pass through ISO certificates CE, PED, API650, AS1210, AS1692, CSA, supply 2-year warranty.
Competitive Price
Scale production and automatic machines reduce cost, Pretank always perseus the most reasonable price policy to share the profits with our consumers and distributors. With same quality our price are more strong competitive.
Customize Service Free of Charge
Our bespoke tanks are tailor-made for each project, considering material, strength calculations, dimensions, fittings, and ports.We listen carefully to your needs and provide humane designs.
Lifetime Engineering Service
At pretank family, you will get lifetime engineering service! Installation service on your site, making all the AutoCAD drawings for you, completely free parts replacement in the warranty date, low cost parts supplied out of the warranty, technology support door to door, lifetime consult support.
| Processing Machinery
Pretank use advanced processing machines to fabricate our stainless steel tanks,including auto Robot welding machine,laser cutting/welding machine,CNC lathe,plasma cutting and automatic welding machines.
The machines replace labor working and minimize the human fault& tanks defects,improve tank quality, shorten construction period.
| Certificate
Over 100 patents including utility,invrention and industrial design.
Pass through ISO certificates of ISO9001/22000/ 45001, and other export certificates of CE, PED, API650, AS1210, AS1692, CSA.
| About Company
Pretank is established in 1971, it's the largest-scale and longest-history stainless steel vessels manufacturer in China,with 4000 staff, 666,000 m㎡ floor space and US$240 million annual sales. We have the most advanced technology, R&D capability in the industry,adopt solidworks and AutoCAD to design vessels, Engaged in formulation of National Standard in designing, producing, inspection and transportation.
53-Year History in Tank Fabrication
Prettech stainless steel tanks already used in 40 classifications,gather rich experiences and precipitate skills in varied industries,win 100,000 client’s trust
Guarantee Quality
- Ensure no leaks no rust, easy cleaning.
- All tanks are over engineered and heavy-duty made, lengthen tank service life.
- Stainless steel tanks produced by automatic and laser machines, reduce labor fault.
- Each tank is strictly tested and inspected before delivery.
- We pass through ISO certificates CE, PED, API650, AS1210, AS1692, CSA, supply 2-year warranty.
Competitive Price
Scale production and automatic machines reduce cost, Pretank always perseus the most reasonable price policy to share the profits with our consumers and distributors. With same quality our price are more strong competitive.
Customize Service Free of Charge
Our bespoke tanks are tailor-made for each project, considering material, strength calculations, dimensions, fittings, and ports.We listen carefully to your needs and provide humane designs.
Lifetime Engineering Service
At pretank family, you will get lifetime engineering service! Installation service on your site, making all the AutoCAD drawings for you, completely free parts replacement in the warranty date, low cost parts supplied out of the warranty, technology support door to door, lifetime consult support.
| Processing Machinery
Pretank use advanced processing machines to fabricate our stainless steel tanks,including auto Robot welding machine,laser cutting/welding machine,CNC lathe,plasma cutting and automatic welding machines.
The machines replace labor working and minimize the human fault& tanks defects,improve tank quality, shorten construction period.
| Certificate
Over 100 patents including utility,invrention and industrial design.
Pass through ISO certificates of ISO9001/22000/ 45001, and other export certificates of CE, PED, API650, AS1210, AS1692, CSA.