Spring Plungers From Wixroyd
What is a Spring Plunger?
Spring plungers are a discrete mechanical device to; secure, position, index, positively lock, and apply lift-off pressure. They are a three-piece component: (1) ball or pin as the contact point, (2) spring of varying force, assembled in to a small grub screw like housing (3). The housing is typically made from steel, stainless steel (generally AISI 303 and 305, other types also available), brass or plastic, with ball bearing steel ball or pin head, are available in a range of threads as small as M2 up to M24, and in UNC and UNF inch sizes. They also come as smooth body push-fit models for quick and easy installation.
Millions of Wixroyd’s spring plungers have been trusted in tens of thousands of applications; medical and scientific equipment, electronic components, machine and fixture designs.
Smooth Body Spring Plungers
A popular push fit spring plunger, a wide range of material variations including stainless steel, brass and plastic.
Unique body design flexes to expand and contract to fit inlocation bore tolerances a wide as +0,2mm. Especially suited to installation in materials where precise bores are difficult to machine.
This smooth body, ball ended spring plunger comes in a stainless body with hardened steel ball. Special variations can be made to your designs.
A double ended spring plunger with a central knurled section for ease of installation. They are used mainly for axial location and securing of bolts.
Expander fit spring plungers, smooth body, with collar and ball. Used for locating, applying pressure, detent or ejection. Available in stainless steel.
Spring Plunger with pin end, smooth with collar. Used for locating, applying pressure or lifting off. Available in stainless steel.
Smooth model spring plungers, long. Used as pulling off pins and spring stops in tool making. Available in blackened steel.
Threaded with Ball
Spring plungers with ball end & hex. socket. Available in steel or stainless steel. These spring plungers may be used for location, for applying pressure or lifting off.
A ball end and slot spring plunger manufactured in steel and stainless steel with sizes starting from M2 up to M24. Increased spring strength variations are provided within the standard range.
Headed spring plungers with a ball & slot, available in steel and stainless steel. Can handle temperatures up to 250 ℃.
Plastic version spring plungers. May be used where electrical conductivity is not required.
Spring plungers with ball end & hex. socket- headed. Available in steel or stainless steel. Used for locating, applying pressure or lifting off. Special types available on request.
Spring plunger with slot and ceramic ball, manufactured in 316 stainless steel for greater corrosion resistance.
Imperial spring plunger with ball head; also comes in variations with pin heads (3B150, 3B200).
Threaded with Pin
A hex socket spring plunger with an indexing pin, available in free cutting steel & stainless steel. Increased spring forces included within the standard range.
Supplied with a slot and round ended pin for locating. Sizes range from M4 to M24 standard. Special sizes available on request.
Threaded body with pin end and hex socket made of stainless steel. Spring-loaded, these plungers are used for location, applying pressure or lifting off applications.
Spring plungers with pin end & hex socket and seal. Available in steel and stainless steel. Incorporation of a seal into the design prevents liquid penetrating into the spring plunger.
Other Spring Plungers
Spring bodies available in steel or stainless steel. To be used for locating or as a detent. Special springs available on request.
Long version spring plungers. Available in steel. Used for ejecting parts (particularly in press tools), and applying pressure.
Striker bushes for spring plungers. Available in hardened steel. Striker bushings are used together with spring plungers when a contact surface is required with high resistance.
Spring plunger holder for part no. 32300. Left, right and centre mounting options available.
Associated Products
Ideal for smaller and lighter location requirements or those with thin materials. To learn more about our index plungers, visit this page.
Single Acting T-Handle ball lock pins quick fastening and locking of frequently repeated connections. Handle offers confidence in handling and installation. To see more of our popular ball lock pins, visit this page.
Applications
Commercial Lighting
Made of high quality steel and stainless steel (and more!), Wixroyd Spring Plunger range is proven to be reliable for millions of repetitions in securing, positioning, positive locking, indexing and quick release. Their application is limited only by the imagination!
Medical Applications
Used in conjunction with a simple hinge, Wixroyd Spring Plunger 32300 provides an easy and secure means to positively position and secure the back panel of a blood gas analysis machine.
With both brass and stainless steel varieties, our Spring Plungers have a wide range of application in the medical, pharmaceutical, food and drink proccessing industries.
Applications
Uses
- Generally used for location or positioning/indexing
- Securing
- Positive locking
- Quick release
- Applying positive pressure (or 'lifting-off' force)
Industry Sectors
- Machine and fixture design
- Measuring equipment
- Electronic Components
- OEM products
- Lighting equipment
- Medical, optics and orthopedics
Features
Mounting Options
Ball Type
31400, 31420, 31500, 32000, 32100, 32102, 32280, 32300, 32302, 32350
Mounting Options
Pin Head Type
31000, 31600, 32150, 32200, 32220, 32282, 32400, 32420
Electrical Conductivity
We are often asked regarding the electrical conductivity of our Spring Plungers. Unfortunately, we are unable to provide any reliable information on this topic as there are many factors in play. We recommend you study the specific material properties of the Spring Plunger component parts to make your own calculations - alternatively if in doubt, make a test application.
Spring Loads
Three available spring pressure models.
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