OEM Flat Coil Big Spiral Spring For rowing machine and Fire safety damper and constant force spring for hose reel

Introducing, the Lisheng’s OEM Flat Coil Big Spiral Spring, a versatile and durable component perfect for use in rowing machines and fire safety dampers. Made with high-quality materials and expert craftsmanship, this spiral spring is designed to provide reliable and consistent performance in a variety of applications.

With its flat coil design, the Lisheng’s spiral spring offers a compact and efficient solution for creating tension and resistance in rowing machines. Whether you are a professional athlete training for competition or a beginner looking to improve your fitness level, this spring is sure to enhance your rowing experience. Its strong and resilient construction ensures long-lasting use, even under intense workouts.

In addition to rowing machines, the Lisheng’s spiral spring is also an ideal choice for fire safety dampers. These dampers are crucial components in buildings and structures to prevent the spread of fire and smoke in case of emergencies. The Lisheng’s spiral spring provides the necessary tension to keep the damper closed, ensuring the safety of occupants and minimizing damage to property.

Furthermore, the Lisheng’s constant force spring is a must-have for hose reel assemblies. This spring is designed to provide a continuous and consistent force, allowing for smooth and effortless retraction of the hose. With its durable construction and reliable performance, the Lisheng’s constant force spring is the perfect choice for ensuring the efficiency and reliability of your hose reel system.

Trust in the Lisheng brand for all your flat coil big spiral spring and constant force spring needs. With a reputation for excellence and a commitment to quality, Lisheng delivers products that meet the highest standards of performance and reliability. Whether you are a manufacturer, contractor, or DIY enthusiast, you can rely on Lisheng springs to meet your needs and exceed your expectations

Enhance the performance and safety of your equipment with the Lisheng’s OEM Flat Coil Big Spiral Spring and constant force spring. Invest in quality, invest in Lisheng

Size	customized and in stock
Technical	Experienced engineers and technicians；skilled workers
Applications	Auto. motorcycle. industry. agriculture. mine furniture. elevator. etc
Material	Steels；Brass；copper，Aluminum Alloy；Plastic such as PEEK, ABS, POM and so on
Surface treatment	Ni-plating ，Zn-plating，Cr-plating，Tin-plating，copper-plating，hot-dip galvanizing，black oxide coating，painting，color zinc-plated，bule black zinc-plated，rust preventive oil，titanium alloy galvanized，electro plating，anodizing etc
Producing Equipment	computer machine，forming machine，spring pressing machine，bending machine，punching machine and other machines
Testing Equipment	Projecting apparatus，Salt Spray Test，Durometer，and Coating thickness tester
Drawing	JPG, PDF, CAD. etc

1. Are you trading company or manufacturer                                                                                                                       A: We are a professional spring manufacturer with more than 1 5 years

2. How to keep high Qc for all springs
A.:Every initial part wil have inspected and tested by machines, and recorded by inspectors. Then inspect the producing goods every20-30 minutes. Finial inspecting and testing reports will be checked again before shipping.

3. Is it available to do OEM or ODM

A: Welcome RFO for OEM and ODM service. Please send us below details, and we will reply you with price within one day.

1). material

2). size - 0D, wD, length, coils
3). Quantity
4). Drawings or samples will be perfect

4: Do you provide samples? ls it free or need extra fees
A. Yes, we could offer free samples for the items in stock, just need to pay shipping cost

5:What is your terms of payment
A:30% in advance. 70% before delivery 100% in advance if less than USD5000

6:What services can we provide
Accepted Delivery Terms: FOB, CFR, CIF, EXW, FAS, CIPFCA, CPTDEQ, DDPDDU, Express Delivery, DAF, DES
Accepted Payment Currency. USD, EUR, JPY, CAD, AUD. HKD, GBPCNY. CHF
Accepted Payment Type: T/TL/C. D/P D/A. Credit Card. PayPal. Cash;
Language Spoken:English, Chinese, Spanish, Japanese