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Q: How many lbs of compression does this spring yield? I’m looking for 50 lbs compression to use on a cheese press.

I do not know the exact amount of pressure required to compress the spring but I do know that it isn’t 50 pounds. I would estimate it as closer to 2-3 pounds. I used mine on a washing machine start button that is plastic—so it is a very light spring.

Q: I want to make costume antennae. Will these work? I want them to bounce about supporting styrofoam balls at the end to wiggle.

This would work fine for that. not too stiff... In my opinion

Q: What is the spring constant?

Quoting the max safe work load doesn't answer the question and is not helpful to you customers. I have the same question: What is the spring constant? So, in the interest of trying to be helpful I'll offer this: Spring force is measure by a formula F=kX where K is the spring constant. The force pressure of the spring is equal to it's constant times the amount you compress it. If the constant K is 1lb/inch compressing it 3" will cause it to resist the compression with 3lbs of force. This formula is basic engineering 101, is useful for a specified amount of compression or extension (yes, you can overdo it), and useful for both compression and extraction springs. So knowing this you can easily determine the K value for your customers. I am looking for a spring roughly 4" long, 1/2" inside diameter and a spring constant of 8oz/inch.

Q: I'm looking for springs to hang lightweight bouncing toys. Would something like this work?

The spring can support a maximum safe load of 4.82lbs.

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Description

⚙️ Elevate your projects with springs that perform as hard as you do!

ROBUST LOAD CAPACITY - Supports up to 4.82 lbs safely for reliable performance
DURABLE TEMPERED STEEL - Spring steel construction guarantees optimal expansion and longevity
EFFORTLESS INSTALLATION - Designed for quick setup with minimal tools—get back to work faster
CORROSION RESISTANT FINISH - Sleek nickel plating ensures durability indoors and out
PRECISION ENGINEERED DIMENSIONS - Perfect 23/32 in. x 3-1/2 in. size for versatile fit

The Prime-Line SP 9711 Closed and Squared Compression Spring features a precise 23/32 inch diameter and 3-1/2 inch length, crafted from durable tempered steel with a corrosion-resistant nickel finish. Engineered to handle up to 4.82 lbs of load with a maximum deflection of 0.461 inches, this spring is ideal for a wide range of professional and household applications, combining strength, reliability, and sleek design for seamless integration.

Specifications

Manufacturer	Prime-Line Products
Part Number	SP 9711
Item model number	SP 9711
Size	23/32 in. x 3-1/2 in.
Colour	Nickel
Finish	Nickel
Material	Steel
Shape	shape
Item Package Quantity	1
Cutting Diameter	0.72 Inches
Measurement System	wire_size
Included Components	Springs
Batteries included?	No
Batteries Required?	No
Assembled Diameter	0.72 Inches
Item Weight	9 g

Have a Question? See What Others Asked

How many lbs of compression does this spring yield? I’m looking for 50 lbs compression to use on a cheese press.

I want to make costume antennae. Will these work? I want them to bounce about supporting styrofoam balls at the end to wiggle.

What is the spring constant?

I'm looking for springs to hang lightweight bouncing toys. Would something like this work?

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