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Updated: 19 Apr 2026

10 Best Mechanical Air Springs

#1 Best Pick
Rustark 128Pcs 16 Sizes Stainless Steel Extension Spring and Compression Spring Assortment Kit Mechanical Springs Small Spring with Hook End Tension Spring for Shop Home Repairs DIY

Rustark 128Pcs 16 Sizes Stainless Steel Extension Spring and Compression Spring Assortment Kit Mechanical Springs Small Spring with Hook End Tension Spring for Shop Home Repairs DIY

Brand: Rustark
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  • 【 What You Get 】 --- You'll receive a 128pcs extension spring and compression spring assortment kit. The extension spring and compression spring come in 16 various sizes, including wire diameter in range of 0.012inch to 0.039inch (0.3mm to 1mm), and outer diameter in range of 0.12inch to 0.39inch (3mm to 10mm), overall length in range of 0.39inch to 2inch (10mm to 50mm). in total 128pcs. Sufficient quantity and wide range of sizes can meet your repair needs in daily life.
  • 【 Durable & Reliable 】 --- These springs are made of high quality stainless steel which are corrosion-resistant, smooth and no stab, durable with long-term service life. These extension spring feature high ductility, wear-resistance, heat-resistance, no deformation, good oxidation resistance, and good fatigue strength, which provide superior performance in some bad conditions.
  • 【 Versatile Design 】 --- The mechanical spring kit has 16 different sizes to fulfill most of your home repair needs in daily life. These mechanical springs are both durable and flexible for the right amount of tension. Besides, these spring has high ductility, good tensile strength, smooth, firm and flexible surface. It is reliable to be used according to your needs.
  • 【 Easy To Use 】 --- The extended springs design features with double opening hook, which can be better fixed on the mechanical equipment easily to ensure the stable operation of the equipment. Compression springs are designed with flat end coils and feature strong spring rates. Besides, these mechanical springs in various sizes are packed neatly in a separate compartment in a transparent storage box, making it easy to get the right size you need.
  • 【 Wide Application 】 --- All the mechanical springs are widely applied to marine, toys, automotive, tools, doors, curtain, automobiles, bicycles, umbrella, kettle, razor, aircraft, antique tape recorder, repair toy, pliers, piano, scissors and so on. Suitable for construction, mechanical devices, electrical appliances, production and assembly, experiment, research and development, maintenance, home repair, etc.
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#2 Best Value
Kakiwutj 70g Magnetic Springs for Mechanical Keyboard - 70Pcs/Pack, Custom Modified 22mm Mx Switches, Non-Magnetic for 60% Keyboard

Kakiwutj 70g Magnetic Springs for Mechanical Keyboard - 70Pcs/Pack, Custom Modified 22mm Mx Switches, Non-Magnetic for 60% Keyboard

Brand: kakiwutj
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  • Magnetic Spring: Longer spring 22mm,press stable,strengthen the rebound feel,tight fit,effectively inhibit the spring sound.Wide variety of pressure grams suitable for different people.
  • Spring Size: Bottom out weight of 70 grams.Length approx.22 mm, outer diameter approx.6.1mm.
  • Keyboard Spring 70G: For replacement of customized magnetic MX style switches,compatible with gateron magnetic jade/white/orange/wooting lekker switch ect.
  • Quality Feel: The spring is made of non-magnetic metal does not affect the magnetic switch flux and magnetic field changes,specially customized for the magnetic switches,more stable to use.
  • Quantity Enough: This link is for springs only,the package contains 70 pcs springs for 60% keyboard needs and replacements.
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#3 Budget Pick
Mardatt 96Pcs 15 Sizes Stainless Steel Extension Springs Kit, Extension Spring with Hook Ends, Small Spring Compression Springs Mechanical Springs Tensile Spring for Home Repairs

Mardatt 96Pcs 15 Sizes Stainless Steel Extension Springs Kit, Extension Spring with Hook Ends, Small Spring Compression Springs Mechanical Springs Tensile Spring for Home Repairs

Brand: Mardatt
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  • WHAT YOU WILL GET: You’ll get 96pcs stainless steel extension springs kit in 15 different sizes, multiple size and sufficient quantity provide you with many options, different sizes can meet your different needs. All extension springs are packed in a transparent case for easy storage and carrying.
  • SPRING DIMENSIONS: 0.012"x0.12"x0.28”; 0.012"x0.12"x0.39”; 0.016"x0.16"x0.39”; 0.016"x0.16"x0.59"; 0.02"x0.18"x0.59"; 0.02"x0.18"x0.79"; 0.024"x0.17"x0.79"; 0.024"x0.17"x0.98"; 0.028"x0.24"x0.79"; 0.028"x0.24"x0.98"; 0.031"x0.28"x0.98"; 0.031"x0.28"x1.18"; 0.035”x0.32”x1.38”; 0.039”x0.354”x1.57”; 0.047”x0.39”x1.97”. (Wire Diameter x Outer Diameter x Free Length)
  • STAINLESS STEEL SPRINGS: Our small compression springs are made of quality stainless steel material with smooth and burr-free surface, which have rust and corrosion resistance, good flexibility and high ductility, can withstand tension and bounce back without losing shape. You can choose our product with confidence.
  • HOOK ENDS DESIGN: These stainless steel tensile springs are designed with a hook at both ends , allowing you to fix them without any tools, simple and easy to use, making your work easy and convenient.
  • WIDE APPLICATION: Mardatt mechanical extension springs are suitable for home improvement, automotive repairs, industrial applications and more. Widely applied in most repair projects, such as door, sofa, chair, curtain, automobile, piano, electrical equipment, umbrella, kettle, razor, pliers and so on.
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#4 Top Choice
kakiwutj 70PCS/Pack Keyboard Switches Springs for Lekker Switches Replaced 55g Magnetic Springs 22mm Long Non-Magnetic Springs for 60% Mechanical Keyboard (55g, 22mm)

kakiwutj 70PCS/Pack Keyboard Switches Springs for Lekker Switches Replaced 55g Magnetic Springs 22mm Long Non-Magnetic Springs for 60% Mechanical Keyboard (55g, 22mm)

Brand: kakiwutj
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  • Magnetic Spring: Longer spring 22mm,press stable,strengthen the rebound feel,tight fit,effectively inhibit the spring sound.Wide variety of pressure grams suitable for different people.
  • Spring Size:Bottom out weight of 55 grams.Length approx.22 mm, outer diameter approx.6.15mm.
  • Keyboard Spring 55G: For replacement of customized magnetic MX style switches,compatible with gateron magnetic jade/white/orange/lekker switch ect.
  • Quality Feel: The spring is made of non-magnetic metal does not affect the magnetic switch flux and magnetic field changes,specially customized for the magnetic switches,more stable to use.
  • Quantity Enough: This link is for springs only,the package contains 70 pcs springs for 60% keyboard needs and replacements.
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#5 Popular Choice
Briny River 10pcs 50x8x0.8mm Compression Springs Stainless Steel Springs Used for Models DIY Mechanical Equipment

Briny River 10pcs 50x8x0.8mm Compression Springs Stainless Steel Springs Used for Models DIY Mechanical Equipment

Brand: Briny River
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  • Durable Material: Made from stainless steel for excellent strength, corrosion resistance, and long-lasting performance in various environments.
  • Precision Size: Each spring measures 50 mm in length, 8 mm in diameter, with a 0.8 mm wire thickness for consistent compression.
  • Wide Application: Ideal for model making, DIY crafts, mechanical devices, toys, and small electronic or industrial projects.
  • Reliable Performance: Offers stable tension and elasticity, suitable for different conditions.
  • Pack: Includes 10 pieces of stainless steel compression springs, perfect for stocking up for projects or repairs.
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#6 Top Pick
kakiwutj Keyboard Springs for Mechanical Keyboard Switches 35g Custom Dual Stage Springs for Replacement DIY 22mm Long Spring for MX Style Switch 110PCS/Pack (35g)

kakiwutj Keyboard Springs for Mechanical Keyboard Switches 35g Custom Dual Stage Springs for Replacement DIY 22mm Long Spring for MX Style Switch 110PCS/Pack (35g)

Brand: kakiwutj
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  • Dual Stage Spring: Strong rebound, straight up and down, better linear/tactile feel, stronger switch rebound.
  • Spring Size: Bottom out weight of 35 grams.Length approx.22 mm, outer diameter approx. 4mm.
  • Keyboard Spring 35G: For replacement of customized MX style switches, compatible with Gateron mx switch.
  • Quality Feel: Double stage springs are made of nickel-plated iron wire with pure iron as the core, well-made, sturdy and long-lasting.
  • Quantity Enough: This link is for springs only,the package contains 110 pcs springs for full size keyboard needs and replacements.
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#7 Top Pick
Kakiwutj 18.5mm Long Magnetic Springs for 60% Mechanical Keyboard - 70pcs/Box (100g)

Kakiwutj 18.5mm Long Magnetic Springs for 60% Mechanical Keyboard - 70pcs/Box (100g)

Brand: kakiwutj
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  • Magnetic Spring: Longer spring 18.5mm,press stable,strengthen the rebound feel,tight fit,effectively inhibit the spring sound.Wide variety of pressure grams suitable for different people.
  • Spring Size: Bottom out weight of 100 grams.Length approx.18.5 mm,outer diameter approx.6.18mm.
  • Keyboard Spring 100G: For replacement of customized magnetic MX style switches,compatible with gateron magnetic jade/white/orange/wooting lekker switch ect.
  • Quality Feel: The spring is made of non-magnetic metal does not affect the magnetic switch flux and magnetic field changes,specially customized for the magnetic switches,more stable to use.
  • Quantity Enough: This link is for springs only,the package contains 70 pcs springs for 60% keyboard needs and replacements.
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#8 Top Pick
200 Piece Ling-Luo Spring Assortment Set, Extension and Compression Kit, Assorted Size Small Springs for All Types of Home Repairs & DIY and Zinc Plated Steel Mechanical Compression

200 Piece Ling-Luo Spring Assortment Set, Extension and Compression Kit, Assorted Size Small Springs for All Types of Home Repairs & DIY and Zinc Plated Steel Mechanical Compression

Brand: Ling-Luo
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  • 【QUALITY DESIGN】: Each flexible small spring coil is made from premium quality zinc plated steel that provides extra durability for the right amount of tension.
  • 【VERSATILE】: Each spring kit includes a wide range of sizes and has 200 pieces for shop and home repairs.
  • 【COMPRESSION SPRING SIZES】: 9/32" x 1/2", 1/4" x 13/32", 7/32" x 11/16", 3/8"x 5/8", 3/8" x 3/4", 9/32" x 3/4", 23/64" x 1-3/8", 7/32" x 1-1/2".
  • 【EXTENSION SPRING SIZES】: 13/64" x 13/16", 7/32" x 1", 1/4" x 7/8", 5/16" x 1-1/8", 5/16" x 1-1/4", 5/16" x 1-3/4",11/32" x 1-27/32", 9/32" x 2-13/16", 5/32" x 3-1/8", 3/16" x 1-3/4", 9/32" x 1-1/2", 11/32" x 1-7/16"
  • 【CONVENIENCE】: Each of the small springs are organized in a plastic storage case in easily identifiable compartments with size chart labeling to specify the spring size.
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#9 Top Pick
VGOL 200pcs Stainless Steel Compression Spring 0.7x5x10mm Small Compression Spring for Electrical Switches Mechanical Equipment Tools Silver

VGOL 200pcs Stainless Steel Compression Spring 0.7x5x10mm Small Compression Spring for Electrical Switches Mechanical Equipment Tools Silver

Brand: VGOL
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  • This package contains 200 compression springs. The free length of the steel spring is 10mm, the outer diameter is 5mm, and the diameter of the steel wire is 0.7mm.
  • The compression spring is made of 304 stainless steel, which has good corrosion resistance, heat resistance, and better mechanical properties.
  • 304 stainless steel compression spring has the characteristics of high elasticity, high precision, uniform pitch, compactness, and stable and balanced stress.
  • Compression springs have the characteristics of high plasticity and fatigue resistance, and can be used for a long time.
  • Small springs are widely used in fields such as electrical switches, household appliances, automotive switches, mechanical equipment, electronic products, electric tools, toys, lawn mowers, etc.
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#10 Top Pick
kakiwutj 22mm Magnetic Switch Springs for Mechanical Keyboard 60% 70Pcs/Pack DIY Replaced for Magnetic Keyboard Long Springs Non-Magnetic Custom Modified (80g, 22mm)

kakiwutj 22mm Magnetic Switch Springs for Mechanical Keyboard 60% 70Pcs/Pack DIY Replaced for Magnetic Keyboard Long Springs Non-Magnetic Custom Modified (80g, 22mm)

Brand: kakiwutj
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  • Magnetic Spring: Longer spring 22mm,press stable,strengthen the rebound feel,tight fit,effectively inhibit the spring sound.Wide variety of pressure grams suitable for different people.
  • Spring Size: Bottom out weight of 80 grams.Length approx.22 mm, outer diameter approx.6.15mm.
  • Keyboard Spring 80G: For replacement of customized magnetic MX style switches,compatible with gateron magnetic jade/white/orange/lekker switch ect.
  • Quality Feel: The spring is made of non-magnetic metal does not affect the magnetic switch flux and magnetic field changes,specially customized for the magnetic switches,more stable to use.
  • Quantity Enough: This link is for springs only,the package contains 70 pcs springs for 60% keyboard needs and replacements.
Check latest price on Amazon

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