Product Description
Plain Body Pull Ring Index Plunger Introduction
●Product Introduction
This plain body pull ring index plunger is integrally precision turned from high-quality carbon steel or stainless steel, available in two surface finishes: bright zinc-plated carbon steel and brushed stainless steel. It features a smooth barrel without external threads, fitted with a metal pull ring on the top and a heavy-duty compression spring inside. The front locating pin retracts and springs back automatically. It is a quick positioning lock part installed by inserting through mounting holes without nuts or threads. Its compact pull-ring integrated design works perfectly with carbon steel mounting bases for indexing locking assemblies.
●Structural Features
Threadless Plain Barrel for Easy Through-hole Mounting
Smooth unthreaded barrel inserts directly into fixture or frame holes, eliminating time-consuming screwing and simplifying replacement.
Manual Retraction via Pull Ring
Pull the metal ring upward by hand to retract the locating pin against the internal spring; release the ring and the pin springs out instantly for secure positioning, one-handed operation.
Two Anti-corrosion Material Options
Zinc-plated carbon steel offers cost-effective rust and wear resistance; solid stainless steel withstands moisture and mild corrosive environments for extended service life.
Stable Spring Force for Reliable Locking
Precision compression spring delivers consistent ejection force, free of weak rebound or jamming after frequent repeated use, ensuring stable indexing repeat accuracy.
Compact Cylindrical Structure Saves Space
Small slim cylinder design occupies minimal installation space, allowing dense arrangement of multiple plungers for mini fixtures and confined equipment interiors.
Smooth Jig-free Retraction & Extension
CNC precision turning ensures uniform clearance between pin and barrel for snag-free pulling and spring return, resisting wear after high-cycle operation.
●Typical Applications
Rotary Indexing Fixtures & Rotary Assembly Stations: Switch workstations by pulling the ring, auto-lock after release, matched with index plunger mounting bases.
Molds & Inspection Jigs: Quick positioning for stamping auxiliary molds and component checking fixtures, easy workpiece loading/unloading.
Storage Racks & Equipment Latch Pins: Layer positioning pins for racks, quick-release latches for equipment safety doors, replacing slow bolt fasteners.
Conveying & Sorting Production Lines: Turntable indexing locks for material separation workstations to boost line throughput.
Outdoor & Humidity-prone Machinery: Stainless steel variant for water treatment equipment, outdoor machinery and light food processing tooling against rust.
Precision Instruments & Mini Equipment Frames: Lightweight rapid locating in compact testing instruments and small automation frames.
