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FAQs

You need four measurements from the original spring: free length (uncompressed, end to end), outer diameter, wire diameter, and the number of active coils. If you also know the load or rate (force per unit of compression), include that. Measuring a fatigued spring can give a slightly short free length, so compare against the machine drawing or OEM spec where possible. These figures are what product listings on PartsForMachines carry, so matching them directly against the specification data on the product page is the most reliable cross-reference method.

Metrol compression springs are used primarily in precision tooling, datum-setting components, and sensor-mounting assemblies where consistent force and tight dimensional tolerances are both required. To find the correct Metrol spring, use the part number from the existing component or tooling drawing. If you do not have the part number, work from the free length, outer diameter, wire diameter, and required load rate. You can also use Ask Simon on the relevant product page for an instant fitment check if you have the core specification to hand.

Spring rate is the force required to compress the spring by one unit of length, typically expressed in N/mm. For a valve, the rate must match the original so that the valve opens and closes at the correct pressure. For a clamping fixture, the rate determines clamping force at a given deflection. If the original spring's rate is not marked, refer to the machine or fixture drawing. Fitting a spring with a higher or lower rate than specified will affect the operating parameters of the assembly and can cause premature failure of surrounding components.

Yes. Trade buyers running production lines or scheduled maintenance programmes can contact the team to discuss quantities. Where a specific spring is on a regular replacement cycle, ordering in volume avoids unplanned downtime. Reach out via WhatsApp 07754288583 or email [email protected] with the part reference or full specification and the quantity required, and the team will confirm availability and options. PartsForMachines operates as an Authorised Distributor and Seller, so trade account arrangements can be discussed directly.

Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.

Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and 'Check where we deliver' confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.

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Compression Springs

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A compression spring is its dimensions and nothing else: wire diameter, outside diameter and free length identify it completely, and the 388 springs on this shelf are found by exactly those three numbers, measured off the old spring with a rule and a pair of callipers at the bench.

The forms divide by how the spring is guided in service. Standard compression springs, the bulk of the shelf at nearly two hundred lines, work over a rod or inside a hole, guided by whatever they run in, and cover the everyday duty of the range. The front flange forms locate against a face, the flange seating the spring squarely where a plain end would wander under load, and they run to more than eighty lines. The end support forms carry their guidance built into the spring itself, and the spring kits collect graded assortments for the bench in standard and precision forms, with a locking pins kit sitting alongside them for the same repair work.

The wave springs are the shelf's space savers, stainless steel rings that flex in waves rather than winding in coils, delivering spring force in a fraction of a coil spring's height, picked by hole diameter, rod diameter and free length, and stocked in graded free lengths from 7 millimetres upward within the same seat sizes so the fitted preload is tuned simply by pick.

A worn or broken spring measured three ways finds its replacement directly on the shelf, search narrowing the range by any one of the dimensions, and a photographed spring with a rule laid beside it over WhatsApp on 07754288583 comes back measured and named, honestly including the nearest listed sizes when the exact spring is not carried.

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Showing 1 to 30 of 388 entries
FAQs

You need four measurements from the original spring: free length (uncompressed, end to end), outer diameter, wire diameter, and the number of active coils. If you also know the load or rate (force per unit of compression), include that. Measuring a fatigued spring can give a slightly short free length, so compare against the machine drawing or OEM spec where possible. These figures are what product listings on PartsForMachines carry, so matching them directly against the specification data on the product page is the most reliable cross-reference method.

Metrol compression springs are used primarily in precision tooling, datum-setting components, and sensor-mounting assemblies where consistent force and tight dimensional tolerances are both required. To find the correct Metrol spring, use the part number from the existing component or tooling drawing. If you do not have the part number, work from the free length, outer diameter, wire diameter, and required load rate. You can also use Ask Simon on the relevant product page for an instant fitment check if you have the core specification to hand.

Spring rate is the force required to compress the spring by one unit of length, typically expressed in N/mm. For a valve, the rate must match the original so that the valve opens and closes at the correct pressure. For a clamping fixture, the rate determines clamping force at a given deflection. If the original spring's rate is not marked, refer to the machine or fixture drawing. Fitting a spring with a higher or lower rate than specified will affect the operating parameters of the assembly and can cause premature failure of surrounding components.

Yes. Trade buyers running production lines or scheduled maintenance programmes can contact the team to discuss quantities. Where a specific spring is on a regular replacement cycle, ordering in volume avoids unplanned downtime. Reach out via WhatsApp 07754288583 or email [email protected] with the part reference or full specification and the quantity required, and the team will confirm availability and options. PartsForMachines operates as an Authorised Distributor and Seller, so trade account arrangements can be discussed directly.

Returns are accepted within 30 days of purchase, in original packaging, on orders delivered within the United Kingdom. For damaged-on-arrival items, report within 24 hours with photographs to [email protected] — we will typically arrange collection and replacement at no cost to you. For parts that don't fit your machine, the Fit Guarantee covers a hassle-free return at no cost. For buyer's remorse — you've changed your mind or ordered the wrong item, email us first to obtain a Return Merchandise Number; a restocking fee may apply. Refunds are issued to the original payment method once the return is inspected.

Delivery time depends on the product, your destination, and availability — the estimated time for any item appears on the product page, and 'Check where we deliver' confirms coverage for your postcode before you order. Next-day delivery is available on most products; the option appears at checkout when applicable. We deliver across the UK, Europe, the Middle East, and Africa. Use the country selector at checkout to confirm coverage and delivery options for your destination.

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