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Kathysia industrial Co., Ltd was reorganized from Zhengzhou spring factory, which founded in 1957, having more than 60 years of professional experience in this field. Kathysia is a designated spring products supplier by the Chinese ministry of machinery industry, and a member of China spring association.

We Supply all kinds of Springs for all applications, If you can’t find a stock spring for your application, or would like to match a competitor’s spring not offered through this website, Our engineering staff is ready to answer your questions or assist in designing the right spring for your application.

Contact Kathysia Industrial for Your Custom Springs

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Large torsion springs are also called heavy duty torsion springs. Their large wire diameter and other dimensions allow for these springs to be able to carry heavy loads. Even if the spring isn't too tight or too stressed, its large dimensions will allow for you to apply a heavy torque on it.Heavy Duty Extension Springs 2 products found. Extension springs from Grainger offer a large selection to help you find the extension spring tension and end type you need. While certain models can make for perfect garage door springs, others are ideal for applications including farmA Progressive Rate Spring has the advantage of a rising rate resistance to compression. The benefit of this is that the spring can be soft enough at the start of the travel to offer a "plush" ride, yet be firm enough at the end of the travel to soak up the big bumps. Some applications are offered in Heavy Duty and Standard Versions.ATS Springs Offers a full line of Heavy Duty Coil Springs for your Ford Vehicles. By adding our Heavy Duty Coil Springs, you will eliminate the front end sag and improve your vehicle's load suppoer on the front end. These Heavy Duty (HD) Coil Springs are a must have, especially for the Snow Plowers!These special heavy duty springs are made to high quality standards and made in the USA  (Made by Dayton Parts, Inc.) For longer U-bolts, shackle bolts, and shackles, please click the links below:   Click the heavy duty leaf spring part number or the standard spring number to...

Die Springs

Century Spring has designed and manufactures a complete line of industrial die springs in both oil tempered & chrome alloy. Generally used in die machinery, they are well-suited for many applications where high-static or shock-load stresses are required or when maximum cycle-life is important.

A die spring is commonly used in clutches, brakes and other heavy machinery applications. Use precision compression springs and conical compression springs in mechanical applications like welding, valve and pipe-fitting and automotive engine systems. Stock up on compression and die springs from Grainger in the types and sizes you need.

Heavy duty springs are those which undergo heavy loads and rough environments. They are usually large, hefty springs used by several industries in big machinery. Heavy duty springs, are mostly used in dies but they are not limited to this application.

Heavy duty springs are 25% heavier than stock Ideal for use with accessories that add weight, such as plows, winches, cabs, trailers, etc. Available in red or black

Heavy-duty leaf springs are stronger and resist bending as easily as regular leaf springs so that the load will ride better without the leaf spring bottoming out. This can be a

For these reasons, design stresses are generally lower for extension than compression springs. A special type of extension spring, known as a drawbar spring, has a solid stop. It is essentially a compression spring with special hooks. Diamond Wire Spring company is your source for custom extension springs.

Heavy-Duty Coil Springs for Cars and Trucks Over time and under consistent stress, many types of vehicles with leaf spring suspensions will begin to show signs of wearing down . Whether you own or manage fleet vehicles or are repairing, rebuilding or retrofitting a personal or work pickup, HD coil springs are often the best solution for under-sprung bodies and sagging front ends.

The "100" designation further defines the product with a free length of 1". The "Load Deflection Table" on each catalog page provides percentage of deflection, travel to solid, and load @ 1" or 1mm deflection to help determine the exact spring to select. The second product code shown is for an extra heavy duty metric spring.

Leaf Springs and Suspension specialists selling Truck Suspension parts, car suspension parts, coil and leaf springs, U-Bolts. Helper springs, Hangers and Shackles,Air Lift Conversion Spring Kits. Also available are complete line of suspension accessories and Mack and Hendrickson Suspension Parts. REPLACEMENT LEAF SPRINGS HEAVY DUTY ;   ATS CAN PROVIDE HEAVY DUTY LEAF SPRINGS

Special Springs offers a comprehensive line of die springs. Our lineup includes ISO, US/NA Oval wire, round wire, ultra-heavy wire, and D-wire. Our springs are made from pre-tempered chrome silicon and chrome vanadium alloy and processed with state-of-the-art heat treating and manufacturing equipment.

Heavy duty coil springs (also referred to as super duty coil springs) by TufTruck are custom designed to give your Dodge or Ford additional load handling capability per pair with only a maximum of 1/2" inch increase in ride height when unloaded.

A die spring is commonly used in clutches, brakes and other heavy machinery applications. Use precision compression springs and conical compression springs in mechanical applications like welding, valve and pipe-fitting and automotive engine systems. Stock up on compression and die springs from Grainger in the types and sizes you need.

Heavy Duty coil springs are a practical helper spring alternative when shock absorbers are mounted inside the coil spring and are an excellent choice for vehicles

S3 Power Sports Polaris Ranger HD Springs

These Heavy Duty springs are designed to increase your load capacity and decrease suspension "sag" you get with factory springs. You will also improve vehicle stability with the increased spring rate and, in many cases, increase ground clearance.

  • Heavy Duty Springs

    Heavy duty springs are compression, extension, or torsion springs with a great amount of force. They have large wire diameters from 1/4" (inch) to 1" (inch) in thickness and are required when the spring needs to support a large amount of load in a mechanism.

  • Jeep Coil Springs

    From stock factory replacements, to heavy duty coil springs designed to fit just about any sized suspension lift, replacing or upgrading your springs has never been easier thanks to a wide array of the industry's top vendors.