Description
Product Overview
The VCN250-CNK rest position hand-retractable plunger is a high-precision, manually operated mechanical positioning device purpose-built for rapid indexing, secure locking, and quick-release reset operations in industrial equipment. Featuring an ergonomic T-type handle, full stainless steel internal construction, and reliable rest position return functionality, this T-type handle stainless steel indexing plunger enables single-handed operation to retract or engage the plunger pin into positioning holes, delivering precise indexing for industrial equipment manufacturers, machining fixture builders, and specialized machinery enterprises. The plunger’s robust design ensures stable performance in high-cycle, demanding industrial environments, with indexing accuracy up to ±0.1mm.
Key Features & Industrial Performance Advantages
Ergonomic T-Handle Design for Effortless One-Handed Operation
The plunger is fitted with an ergonomically shaped T-handle made from high-strength Nylon 6, available in black, blue, and red color options to match equipment branding and safety coding. The optimized handle shape ensures a comfortable, non-slip grip, allowing operators to complete locking and unlocking with a single pull-and-twist motion, drastically reducing operation time and improving production efficiency for high-volume manufacturing workflows.
High-Precision Rest Position Indexing & Self-Locking Mechanism
This rest position indexing plunger incorporates a precision-engineered spring-loaded structure, with a tight tolerance fit between the plunger pin and positioning holes to deliver stable, repeatable locking with ±0.1mm indexing accuracy. The rest position design holds the plunger in the retracted state when released, eliminating the need for continuous manual holding during workpiece adjustment or equipment changeover. Select configurations include an anti-release safety mechanism to prevent accidental unlocking, enhancing operational safety in heavy industrial settings.
Heavy-Duty Corrosion-Resistant Construction for Long Service Life
The threaded shell, plunger pin, internal spring, and lock nut are all manufactured from high-grade stainless steel, delivering exceptional wear and corrosion resistance for humid, high-temperature, and chemically exposed environments. The hardened contact surfaces extend the plunger’s service life to over 100,000 operating cycles, even under high-frequency use. It operates reliably across a temperature range of -50°C to 200°C, with optional IP65 protection available for dust and water ingress resistance in harsh outdoor or washdown applications.
Detailed Technical Specifications
Type | Thread Diameter (M) | Thread Pitch (mm) | B (mm) | S (mm) | D (mm) | Total Length L (mm) | Sw1 (mm) | Sw2 (mm) |
|---|---|---|---|---|---|---|---|---|
VCN250-CNK | M10 | 1.5 | 5 | 5 | 45 | 41 | 12 | 17 |
VCN250-CNK | M12 | 1.5 | 6 | 6 | 54 | 48 | 14 | 19 |
VCN250-CNK | M16 | 1.5 | 8 | 8 | 59 | 60 | 17 | 24 |
VCN250-CNK | M20 | 1.5 | 12 | 15 | 73 | 74.5 | 22 | 29 |
VCN250-CNK | M24 | 2 | 16 | 20 | 81.5 | 38 | 27 | 35 |
Ordering Example: VCN250-CNK-M16-10-12 (Type - Thread Diameter - B Dimension - S Dimension) | ||||||||
Industrial Applications
This heavy duty threaded spring plunger is optimized for a wide range of industrial use cases, including:
Machining Fixtures & Workholding: Workpiece clamping, angular adjustment, and quick tooling changes in machining centers, milling machines, and custom fabrication fixtures; secure locking for jig and fixture alignment in metalworking operations.
Automation Equipment & Rotary Indexing: Precision indexing for rotary tables, conveyor line position locking, and end-of-arm tooling changeover for robotic grippers; rapid adjustment for automated production line setups.
Specialized Machinery & Outdoor Equipment: Corrosion-resistant positioning for marine equipment, outdoor industrial instruments, and construction machinery; durable locking for off-highway equipment that requires frequent manual adjustment.
Pharmaceutical & Food Processing Equipment: Hygienic, washdown-compatible positioning for production line machinery in pharmaceutical and food manufacturing facilities, meeting strict sanitation and corrosion resistance requirements.
Customization & OEM/ODM Manufacturing Services
We provide end-to-end customization solutions for industrial and commercial enterprise clients with unique operational needs. Available customizations include tailored plunger pin diameter, stroke length, number of indexing holes, spring tension ratings, handle color and material, and upgraded corrosion-resistant material options. We also offer full OEM/ODM manufacturing services, including custom branding, private labeling, bespoke packaging, and functional design modifications to align with your equipment’s specific requirements and brand standards.
Ordering, Global Shipping & Warranty
Standard models have a minimum order quantity of 1 piece, with tiered bulk pricing for large-volume enterprise orders to support your production and inventory needs. We provide global shipping solutions via international express, air freight, and sea freight, with reliable door-to-door delivery to manufacturing facilities worldwide. All our self-locking spring plungers are backed by a 12-month manufacturer warranty against material and workmanship defects, with dedicated technical support to assist with installation, specification selection, and troubleshooting for your industrial applications.
FAQs
What is the core function of the rest position design on this hand-retractable plunger?
The rest position design holds the plunger pin in a fully retracted state when activated, eliminating the need for operators to continuously hold the handle during workpiece adjustment, equipment changeover, or maintenance, streamlining workflows and improving operational safety.
What handle color options are available for the VCN250-CNK series?
We offer three standard handle color options: black, blue, and red, with custom color matching available for bulk OEM orders to align with your equipment’s safety coding or brand identity.
What is the expected service life of this indexing plunger under high-frequency industrial use?
With its hardened stainless steel construction and optimized spring design, the plunger delivers a service life of over 100,000 operating cycles under normal high-frequency industrial use, with regular maintenance to inspect spring tension and locking accuracy.
