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Compression Springs Compression Springs

Enter your Outside Diameter and Free Length
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Inside Diameter
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Wire Diameter
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Total Coils
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Rate
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Material Type
Max. Load
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Max. Deflection
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Solid Height
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*Required Field
Extension Springs Extension Springs

Enter your Outside Diameter and Length Inside Hook
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Outside Diameter
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Length Inside Hook
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Wire Diameter
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Max. Load
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Max. Deflection
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Initial Tension
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Rate
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Material Type
*Required Field
Torsion Springs Torsion Springs

Enter your Outside Diameter and Total Coils
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Outside Diameter
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Inside Diameter
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Total Coils
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Free Position
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Wire Diameter
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Body Length
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Max. Torque
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Max. Deflection
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Rate
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Leg Length
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Material Type
*Required Field
Conical Springs Conical Springs

Enter you Small Outside Diameter, Large Outside Diameter and Free Length
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Small Outside Diameter
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Large Outside Diameter
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Free Length
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Rate
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Total Coils
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Solid Height
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Wire Diameter
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Material Type
*Required Field

Coil Spring Design PDF

What Is a Coil Spring Design PDF?

 

A Coil Spring Design PDF is a technical document that compiles all the essential information you need about a compression spring (or other spring type). Generated by Acxess Spring’s online spring calculator, Spring Creator, this PDF includes:

  • A blueprint of your spring, depicting the wire diameter, number of coils, and end type.
  • A full spring analysis, featuring parameters like spring rate (K), maximum travel, maximum safe load, and stress levels.

This document not only serves as a static record of your design but can also be a live blueprint because it references up-to-date calculations directly from Spring Creator. This ensures that every time you adjust any dimension or performance requirement, the PDF can be regenerated to reflect the latest data.

 

Why Is It Useful?

 

Whether you’re an engineer, purchaser, or DIY enthusiast, having a concise PDF that outlines every detail of your spring design saves time and minimizes guesswork. You can share the PDF instantly with colleagues or suppliers, request quotes for multiple quantities, and compare different designs side by side. This level of detail is critical when you need to verify mechanical compatibility, ensure safe performance, or keep thorough records for quality control.

 

Unpacking the 3D Custom or Stock Spring Blueprints 

Compression Spring The Spring Store BlueprintCompression Spring The Spring Store Blueprint

Acxess Spring’s 3D Blueprints for custom or stock springs are designed to give you a comprehensive, at-a-glance overview of everything you need to know about your spring. These documents contain several sections with clearly labeled terms and figures. Below, you’ll find each term explained briefly. 

 

Basic Information

 

  • Part Name
    A specific name or identifier you assign to the spring. This makes it easier to recognize and reference in documentation and communication.
  • Date
    The date the blueprint or document was created. Having the current date ensures you are always working with the most up-to-date design specifications.
  • Part Number (in inches)
    A unique alphanumeric code (measured in inches) used to identify the specific spring design. This is critical for ordering, inventory management, and future reference.
  • Spring Type
    Indicates what category of spring you’re dealing with (e.g., compression, extension, torsion, or conical). Knowing the type ensures you understand its basic function and load characteristics.
  • End Type
    Describes how the ends of the spring are configured. Common end types for compression springs include closed and squared or closed and ground. Extension springs might have hooks. Torsion springs have legs. The end type affects how the spring interfaces with mating components.
  • Finish
    Refers to any coating or surface treatment (e.g., zinc plating, black oxide) that helps with corrosion resistance or gives aesthetic appeal.
  • Direction of Wind
    States whether the spring is wound in a right-hand or left-hand direction. This is especially important for springs that must rotate in a particular orientation or interface with threaded components.
  • Material
    Specifies the metal or alloy used to manufacture the spring (e.g., stainless steel 302 ASTM A313, music wire ASTM A228, chrome silicon ASTM A401). Each material has different strengths, corrosion resistance properties, and costs.
  • Spring Index
    A ratio comparing the mean diameter of the spring to its wire diameter (Index = MD ÷ WD). This metric gives an indication of potential stress levels and manufacturability. A low index often means higher stress, while a very high index can make the spring prone to buckling.
  • Weight
    The overall weight of the spring in ounces or grams. Weight matters if you need to minimize mass (e.g., in aerospace or high-speed machinery).

 

Basic Information Compression Spring BlueprintBasic Information Compression Spring Blueprint

Physical Dimensions

 

This section details the precise measurements of your spring. Having exact figures ensures you can verify fit within an assembly and predict how the spring will behave under load.

 

  • Wire Diameter (WD)
    The thickness of the wire used to form the spring. A larger wire diameter generally increases load capacity but can reduce available deflection.
  • Outer Diameter (OD)
    The diameter measured from one outer edge of the coil to the opposite outer edge. Ensures the spring can fit correctly into the designated space.
  • Mean Diameter (MD)
    The average diameter of the spring coil, calculated by subtracting one wire diameter from the outer diameter. It’s a crucial dimension for stress and rate calculations.
Physical Dimensions Compression Spring BlueprintPhysical Dimensions Compression Spring Blueprint

 

Additional Dimensions for Different Spring Types

 

 

Visual Representation

 

Detailed diagrams and 3D views are provided to help you see exactly how the spring’s dimensions fit together:

 

  • Wire Diameter (WD) Visualization
    Shows the thickness of the wire, allowing you to confirm the scale.
  • Inner and Outer Diameter
    Illustrates how the spring will fit around or inside other components.
  • Free Length
    Depicts the spring at its full, uncompressed height, providing a clear visual for spacing considerations.
Visual Representation Compression SpringVisual Representation Compression Spring

 

Seeing these dimensions in a visual format can prevent design miscalculations and misunderstandings—especially when multiple team members or suppliers need to collaborate on the same project.

 

Additional Information

 

This final portion of the blueprint provides optional sections for thorough documentation and traceability:

 

  • Notes
     A blank area where you can record any project-specific or part-specific comments.
  • Scale
    Indicates the scaling used in drawings, ensuring everyone interprets the diagrams correctly.
  • Revision Number
    Helps you track changes or updates to the design over time.
  • Drawn By / Approved By
    Clearly shows who created the blueprint and who signed off on it, establishing accountability and quality control in the design process.

 

Drawn By Approved By Section BlueprintDrawn By Approved By Section Blueprint

Step-by-Step: How to Generate Your Coil Spring Design PDF

 

While the 3D Blueprint approach offers an interactive and visually rich experience, many engineers still rely on a standard PDF for portability and reference. Here’s how you can create and download your spring PDF using Acxess Spring’s Spring Creator.

 

1.- Select Your Spring Type and Enter Basic Dimensions

 

Pick between compression, extension, torsion, or conical springs. At minimum, specify dimensions like outer diameter (OD) and free length (FL) so the spring fits your application.

 

Select Your Compression Spring Input SectionSelect Your Compression Spring Input Section

 

2.- Compare and Filter

 

Review the generated list of springs. Refine by additional specs (wire diameter, material, max load) to find your best match. In this case, we’re choosing Acxess Spring’s Part Number PC016-172-4500-MW-0250-CG-N-IN.

 

Compare Compression Springs TableCompare Compression Springs Table

 

3.- Open the Spec Sheet

 

Once you’ve chosen a spring, click on the “Spec Sheet” tab to view its 3D blueprint.

 

Open Your Specsheet BlueprintOpen Your Specsheet Blueprint

 

4.- (Optional) Add Details

 

Include extra info like “Drawn By,” “Approved By,” or a revision number for traceability.

 

Update Your Blueprint SectionUpdate Your Blueprint Section

 

5.- Download Your Blueprint

 

Save the final document with all specs and any additional details for manufacturing and reference.

 

Download Your Blueprint ButtonDownload Your Blueprint Button

 

This interactive process ensures you always have an up-to-date PDF reflecting the latest design modifications.

 

Leveraging Acxess Spring’s Massive Catalog

If you’re a regular spring user or simply want to keep a library of readily available designs, you can download Acxess Spring’s coil spring catalog in PDF format. This catalog features: 

  • Nearly 70 trillion coil spring designs, covering a broad spectrum of dimensions, spring types, and materials.
  • Each design is identified by a unique part number, along with all its key characteristics.
Stock Compression Spring CatalogStock Compression Spring Catalog

 

Having this catalog on hand simplifies the search for a suitable spring and speeds up the design process, especially when you need to compare multiple part numbers quickly.

 

Elevate Your Spring Designs with Confidence

 

Coil spring design doesn’t have to be complicated—Acxess Spring’s Coil Spring Design PDF make the entire process faster, clearer, and more reliable: 

 

  • First, they compile every essential detail into a single, easy-to-reference document. 
  • Second, the 3D format offers a visually rich, interactive way to verify each dimension. 
  • Third, the Spring Creator tool simplifies calculations and updates, saving you valuable time. 
  • Fourth, the ability to quickly generate quotes and compare designs ensures you’ll always make the best choice for your project’s requirements. 
  • And finally, Acxess Spring’s extensive catalog—featuring nearly 70 trillion designs—makes it easy to find or customize the exact spring you need.

Ready to streamline your spring selection process? Leverage the power of Acxess Spring’s Blueprints and Spring Creator today to lock in precise data, collaborate effortlessly with team members or suppliers, and get high-quality springs that meet your exact specifications—all at the click of a button. Your next coil spring project can be simpler than ever before.

 

Invest in precision and quality

Spring Creator 5.0 offers you the possibility to design springs that perfectly fit your needs. Our platform not only allows you to design various types of springs but also provides advanced tools like the Online Spring Force Tester to simulate and evaluate spring performance. Visualize your design in 3D, download detailed blueprints, and get instant quotes. Try it for free and discover why we are the preferred choice of engineers and makers!

Spring Creator tool - Try it now

Created by Alfonso Jaramillo Jr

President Acxess Spring

Over 40 Years of Experience in Spring Engineering and Manufacturing