Canted Coil Spring

Canted Coil Spring Seals | Spring Energized Seal

Canted Coil Spring Seals Overview

Handa Canted Coil Springs (also known as: Slant Coil Spring, Wire Wound Spring, Wound Spring, Slant Coil) are precision-engineered components designed to deliver consistent force and low friction in static and dynamic sealing applications. Ideal for use in spring energized seals, Mechanical Connecting, electrical connectors, and EMI shielding, canted coil springs provide a near-constant load over wide deflection ranges. Their unique slanted coil geometry allows for superior performance in high-speed rotary seals, medical devices, and aerospace assemblies.

Handa Spring offers custom canted coil spring solutions to meet demanding industry requirements. Optimize your sealing system with reliable, long-life performance.

Materials And Plating available include:

Materials: Stainless steel (e.g., 302, 316), Platinum Iridium, MP35N, Elgiloy®, Beryllium copper, Inconel®, Hastelloy® etc.,

Plating: Gold, Silver, Tin, and Nickel plating available.()

For other custom meterials or plating options, click here to contact Handa Spring.

Canted Coil Spring Dimensional Data

The table below outlines the standard dimensions for canted coil springs. These dimensions are subject to standard manufacturing tolerances, which can be provided upon request.
Each canted coil spring is produced using its own unique tool and die set, ensuring precision and consistency across all units.

“Flat Load Versus Deflection Curve,Near Zero Compression Set,Standard & Custom Sizes Available, Light, Medium & High Load Series.”

“Consult Our Engineering for all custom or unlisted sizes.”

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Canted Coil Spring Drawing - Handa Spring

SERIES	Load type	“A” (Metal wire)	“B” (Minor)	“C” (Major)	“T” (Cut Length)	“ID” “(Welded ID)”
HD-CS-L132	L	0.08	0.62	0.70	7.60	1.80
HD-CS-M132	M	0.10	0.62	0.70	7.60	1.80
HD-CS-H132	H	0.12	0.65	0.75	7.70	1.80
HD-CS-L000	L	0.12	1.40	1.55	12.90	2.70
HD-CS-M000	M	0.15	1.40	1.55	12.90	2.70
HD-CS-H000	H	0.20	1.20	1.32	12.20	2.70
HD-CS-L100	L	0.18	2.00	2.40	19.80	4.30
HD-CS-M100	M	0.35	2.00	2.40	20.10	4.40
HD-CS-H100	H	0.35	2.00	2.30	19.80	4.30
HD-CS-L200	L	0.30	2.80	3.20	30.10	6.80
HD-CS-M200	M	0.35	2.80	3.20	30.10	6.80
HD-CS-H200	H	0.40	2.80	3.20	30.10	6.80
HD-CS-L300	L	0.40	4.00	4.50	42.70	9.60
HD-CS-M300	M	0.50	4.00	4.50	42.70	9.60
HD-CS-H300	H	0.60	4.00	4.50	42.70	9.60
HD-CS-L400	L	0.50	5.50	6.00	61.20	14.00
HD-CS-M400	M	0.60	5.50	6.00	61.20	14.00
HD-CS-H400	H	0.70	5.50	6.00	61.20	14.00
HD-CS-L500	L	0.60	8.20	9.20	96.40	22.50
HD-CS-M500	M	0.70	8.20	9.20	96.40	22.50
HD-CS-H500	H	1.00	8.20	9.20	96.40	22.50
HD-CS-L600	L	0.70	11.40	12.80	152.00	37.00
HD-CS-M600	M	1.00	11.40	12.80	152.00	37.00
HD-CS-H600	H	1.20	11.40	12.80	152.00	37.00

How a Canted Coil Spring Works

Canted coil springs, are engineered to deliver consistent force, uniform contact pressure, and multi-directional load support. At Handa Spring, we specialize in designing and manufacturing custom canted coil springs that meet the highest performance standards for demanding applications.

Canted Coil Spring Deflection | Handa Spring

1.Constant Force Through Working Deflection Range

Canted Coil Spring Deflection Force | Handa Spring

As the spring is further compressed, its load remains relatively constant throughout the working deflection range. This continues until the maximum deflection point, where the individual coils come into contact with one another. Beyond this point, no further deflection is possible.

Unlike traditional sealing elements such as O-rings or V-springs, which exert a force that increases proportionally with deflection, Handa’s canted coil springs provide only the required force needed for mechanical retention or electrical conductivity. This results in:

Lower insertion and breakaway forces
Reduced component wear
Longer operational cycle life

This constant force profile is especially valuable in applications involving high mating cycles or sensitive assemblies.

2.Electrical Design Considerations

Canted Coil Spring Plating Data | Handa Spring

In electrical and EMI shielding applications, the performance of a canted coil spring depends not only on its geometry but also on the material and surface finish. Key design factors include:

Base wire material (e.g., stainless steel, Elgiloy®, beryllium copper)
Plating material (e.g., gold, silver, nickel)
Plating thickness

Applying a conductive plating layer over the spring’s wire significantly enhances its electrical conductivity, improves signal integrity, and ensures consistent grounding.

At Handa Spring, we offer a range of plating options to match your specific performance and corrosion resistance requirements.

Why Choose Handa Spring?

At Handa Spring, we combine advanced manufacturing, strict quality control, and engineering expertise to deliver custom canted coil springs tailored to your requirements. Whether you need high-volume production or low-quantity prototyping, we offer fast turnaround, competitive pricing, and global shipping.

🎯 We are a direct manufacturer — not a reseller — ensuring cost efficiency and full quality control.

Advantages and Applications of Canted Coil Spring Seals

Canted Coil Spring are well-suited for applications requiring consistent performance, minimal friction, and optimal sealing in environments with strict size restrictions, challenging electrical requirements, wide temperature fluctuations, and aggressive media. Their versatility makes them a preferred choice across several industries, including high precision devices, battery-operated gadgets, heavy load applications, aerospace and defense, semiconductors, life sciences, and various industrial equipment.
Here are the key advantages and applications of these :

Advantages of Canted Coil Spring

Choosing canted coil springs for your assemblies offers numerous benefits across industries:

Consistent Force Distribution:
Canted coil springs provide a nearly constant force over a wide range of deflections. This characteristic ensures a reliable seal even under varying pressure conditions, making them ideal for applications that require precise force control.
Versatility in Design:
The unique design of canted coil springs allows them to function in both mechanical and electrical roles. They can be used for latching, holding, and locking components, as well as providing electrical contact or EMI shielding.
This multifunctionality reduces the need for additional components, simplifying system designs.
High Load Capacity:
Despite their compact size, canted coil springs offer high load capacity. This is particularly beneficial in applications where space is limited, but a strong sealing force is necessary.

Material Options and Customization:
These springs can be manufactured from various materials such as stainless steel, copper alloys, and specialty metals like Hastelloy and Inconel.
The choice of material can be tailored to specific application requirements, including resistance to corrosion, high temperatures, and electrical conductivity.
Additionally, they can be plated with metals like gold, silver, or nickel to enhance electrical performance and corrosion resistance.
Durability and Longevity:
The robust design and high-quality materials used in canted coil springs make them durable and long-lasting. They maintain their performance over extensive cycles, reducing maintenance needs and downtime.

Applications of Canted Coil Spring

These versatile springs are used in a wide range of industries, including:

Automotive Industry:
- Usage: In automotive applications, these seals are used in fuel systems, power steering systems, and transmission units.
- Why Effective: The ability to withstand high pressures and temperatures makes them ideal for sealing critical components that experience significant thermal cycling and mechanical stress.
Medical Industry:
- Usage: Canted coil spring seals are crucial in medical devices like pumps, valves, and surgical instruments. They are often used in applications requiring high precision and reliability, such as drug delivery systems, diagnostic equipment, and sterilization devices.
- Why Effective: The seals’ ability to maintain a consistent force ensures precise control of fluids and gases, which is vital for accurate dosing and flow regulation in medical devices. Their chemical resistance is essential for handling sterilizing agents and pharmaceuticals without degrading. Additionally, the low friction properties reduce wear and prolong the life of the device, ensuring reliable performance over time.

Aerospace Industry:
- Usage: In aerospace, canted coil spring seals are used in hydraulic systems, fuel systems, and environmental control systems.
- Why Effective: The seals provide reliable performance under extreme conditions, such as high altitudes and temperature variations, essential for maintaining safety and functionality in aerospace applications.
Oil & Gas Industry:
- Usage: These seals are used in downhole tools, valves, and pumps.
- Why Effective: They offer excellent resistance to high pressures and corrosive environments, making them suitable for harsh conditions encountered in oil and gas extraction and processing.
Chemical Processing:
- Usage: Used in reactors, mixers, and valves, these seals protect against aggressive chemicals and high temperatures.
- Why Effective: The seals’ chemical resistance and durability ensure long-term performance and safety in environments where exposure to corrosive substances is common.

Contact US

Get in touch with a member of our team. Fill out the form below and we will connect you to an expert who can provide product quotes and assist in design solutions that deliver the performance, durability, and value you need.

Stress: 1st floor, building 7, changchong Industrial Park, Beihu District
City: Chenzhou
Province: Hunan
Zip Code: 423000
Country: China

Tel: +86 13169905499

Whatsapp: +8613169905499

Wechat: Sunnyyu960901

Email: sunny@handaspring.com