An index plunger is a mechanical device that has a retractable pin that is retracted and automatically expands when space becomes available, thereby locking or indexing an item into place. Index plungers can be used to ease the positioning of removeable parts on machines, equipment assemblies and to help locate the correct component. Available with a variety of different grips and locking functions to suit different applications.
Our technical engineers are always on hand to provide assistance choosing the right type of index plunger for your application. Free CAD files are available for our index plunger products to provide you with all the materials you need and save your time.
Pull-grip Index Plungers, steel, coarse thread. Ideal for quick and simple manual indexing purposes.
Pull-grip Index Plungers with coarse thread. Available in locking and non-locking type.
Wixroyd's compact non-locking index plunger included a thread recess for full engagement of thread length.
No grip index plungers. Non locking type-pin simply springs back when grip released.
The locking variation of the compact index plunger comes in steel and stainless steel. Engagement of the locking element requires a simple pull back and 90° twist of the plastic grip.
This range hosts an index plunger without a fitted grip which allows the user to mount a customised handle to suit the application requirements.
Fully stainless steel no-locking index plunger. This makes it suitable for the demands of food processing, pharmaceutical or water treatment applications.
Complete stainless steel construction designed with specific demands of food processing, pharmaceutical and water treatment industries in mind, The specific range comes with a locking.
Pull grip index plungerm locking type. Available in steel or stainless steel. Turn 90° to engage 'locking' on a notched catch.
Non-locking-plunger springs back when pull handle is released. The product is designed to be welded or glued in place.
Pull grip index plunger for thin walled parts. Locking and non-locking type available.
Pull grip index plunger. Non-locking type- pin simply springs back when pull ring released.
An all stainless steel index plunger designed for spring-back location. Temperature resistance ranges from -30°C to +80°C.
Non-locking steel index plunger. Ideal for either pressure (push) or tension (pull) applications, due to the uniquely designed spring loaded pin with threads at both ends to allow installation of your own adapted or handle.
Pull grip index plunger with release lock. Press red button and hold whilst pulling knob to release pin. Temperature range from -30°C to +80°C.
Pull grip index plunger with rapid locking head. Pull knob up, red button flush= pin locked. Press red button, red button out=pin unlocked. Temperature range from -30°C to +80°C.
Pull-ring, non-locking iIndex Plungers with coarse thread. For applications where high precision is not required. Temperature resistance up to 250ºC.
Pull ring, non-locking index plungers with coarse thread. Made from stainless steel (AISI 303 and 301). Suitable for applications where high precision is not required (coarse thread).
T-handle grip, non-locking index plungers. Easy to grip handle helps improved handling when using safety gloves or other situations when an operator has limited dexterity.
T-handle grip index plunger, locking, compact. Easy to grip handle helps improved handling when using safety gloves or other situations when an operator has limited dexterity.
Lever grip index plungers with 90° or 120° actuation. Three different types available: without rest position, with rest position and with a safety rest position.
Lever grip index plungers. At start position locking pin is retracted, when lever is actuated locking pin protrudes. Available without rest position, with rest position and with a safety rest position.
Lever grip index plungers with locking. Turn lever 180º to retract pin. To enable pin to be held in retracted position, secure lever in notched catch on plunger body.
Lever grip index plungers with locking, stainless steel. Turn lever 180º to retract pin. To enable pin to be held in retracted position, secure lever in notched catch on plunger body.
Lever grip index plungers with coarse thread, locking. Pull back and turn lever 180º to retract pin. To enable pin to be held in retracted position, secure lever in notched catch on plunger body.
Precision index plungers with cylindrical pin, made from case hardened steel with thermoplastic grip. Available in locking or non-locking types.
Precision index plungers with tapered pin. Made from case hardened steel with thermoplastic grip. Available in locking or non-locking types.
An extra fine threaded mini index plunger, for installating on the thinest of sheet metal.
Like the other mini index plungers this fine threaded mini index plunger has locking and non-locking models available. Galvanized steel and stainless steel pins.
Coarse threaded mini index plunger, available in stainless steel or free cutting galvanised steel. Particularly suited for use on sheet metal assemblies; e.g Shopfitting displays.
Pull grip index plunger, compact. Available in locking and non-locking type. Temperature resistance -30°C to +80°C.
Flange mounting lever grip index plunger with or without thermoplastic grip. Finished in anti-glare matte black. Turn lever 180° to retract pin.
Pull grip index plungers in steel. For applications where high precision is not required. Coarse thread.
These index plungers are ideal for quick and simple manual indexing purposes.
Pull grip index plunger with flange mounting. Available in locking and non-locking type.
Pull grip index plunger with flange mounting. Available in steel or stainless steel. Locking and non-locking options available.
Pull grip index plunger with flange mounting. Weldable, compact. Available in locking and non-locking type.
Mounting blocks for index plungers, fine thread. Available in steel or stainless steel. Mounting blocks provide assembly support for mounting of index plungers.
Mounting blocks for index plungers, fine thread. Available in steel or stainless steel, black plastic coated. Mounting blocks provide assembly support for mounting of index plungers
Distance collars for index plungers in stainless steel. Distance collars adapt the thread length of index plungers to enable different thread reaches.
Locating bushes for index plungers in steel. Provides a durable location bush for index plunger pins.
A ball end and slot spring plunger available in steel and stainless steel with sizes starting from M2 upto M24. For locating, locking and position indexing. Increased spring strength variations provided within the standard range.
Steel with plastic grip
Stainless with plastic grip
Stainless body and grip
Locking (park)
Non-locking (spring back)
Push pull
Lever grip
T-handle
Standard grip
Pull ring
Threaded for bespoke handle
Fine threaded (standard)
Coarse thread
Flange mount
Thin walled parts
Weldable
- | Pin Tol. | Hole Tol. |
A | h9 | +0,03 +0,08 |
B | -0,02 | h7 |
S Stroke, or movement of plunger's ball or pin.
F1 The force required in Newtons (N) to over come the static strength of the spring and achieve initial movement of the plunger's ball or pin
F2 The force required in Newtons (N) to fully compress the spring and to depress the ball or pin fully against the plunger's body
Which Index Plunger material Should I Use?
Your choice of index plunger material will be dictated by the environment where the plunger is used. If the index plunger is likely to be exposed to water or placed in hygiene-sensitive environments such as medical applications, then stainless steel is advised. Our technical experts can you advise you on the best material to use relative to your intended application.
What are the different types of Index Plungers?
Index plungers come in many different types and guises including thread mounted, lever and ring pull, flange mounted and thin wall. The type you may require may depend on the importance of precision and if a locking feature is required. Contact us now for advice and support from an expert engineer.
Is Installing an Index Plunger easy?
Installing an index plunger is a relatively uncomplicated process and can be achieved in three main ways. Firstly, installation can be achieved via a threaded body and corresponding threaded hole in the fixture. Alternatively, index plungers can be installed via a flange with countersunk holes for surface mounting with bolts or screws. Finally, index plungers can be installed with an integral locking sleeve, designed specifically for mounting in thin-walled sheet material. It's important to note that threaded installation works best if extra strength is required whereas applications with flat sheet material are best suited to installation via surface or flange mount.
Can Wixroyd provide Index Plungers with a metal handle that has a semi-gloss finish in RAL 9017?
We currently do not provide this type of finish on our index plungers, but if you have another handle specification for a special index plunger, please contact our sales team.
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