Overview
The Proloc™ Blocker is a specialized security accessory designed to protect personal fitness equipment in public or commercial gym settings. By locking onto the sleeve of a barbell, the Blocker renders the bar unusable for unauthorized lifters. It can also be utilized on weight trees and plate storage systems to secure valuable weight plates. This is an essential tool for athletes who store their own high-end barbells (like the Ohio Bar or Ohio Power Bar) at a shared facility.
Product Page: Proloc™ Blocker
Key Features & Specifications
Made in the USA.
Security Design: Features a heavy-duty locking loop compatible with standard padlocks and security chains.
Compatibility: Fits all standard 50mm Olympic barbell sleeves and specialty bars with standard Olympic sleeves.
Material: Constructed from high-strength reinforced nylon—the same durable material used in the Proloc collar lineup.
Hardware Included: Each Blocker comes with its own Allen key for the initial clamping adjustment.
Sold Individually: Price is per single Blocker unit.
Performance Benefits
Theft and Misuse Prevention: When clamped to one end of a barbell and secured with a chain to a fixed object (like a power rack), it prevents the bar from being removed or used, ensuring your equipment remains in the condition you left it.
Plate Security: Can be slid onto a weight storage peg and locked to prevent others from using specific plates, which is ideal for maintaining the weight inventory of a personal training studio within a larger gym.
Non-Marring: The nylon interior is designed to grip tightly without scratching the chrome, zinc, or Cerakote finish of your barbell sleeves.
High Visibility: Its distinct design serves as a clear visual deterrent to other gym members.
Maintenance and Care
Allen Key Check: Periodically ensure the internal set screw is tightened securely to the bar using the provided Allen key.
Cleaning: Wipe the nylon body with a damp cloth to remove chalk and dust.
Lock Inspection: Regularly check your third-party padlock and chain for signs of tampering or rust.
Installation Instructions
Slide on the Bar: Slide the Proloc Blocker onto the sleeve of the barbell until it is flush against the collar or the end of the sleeve.
Tighten: Use the provided Allen key to tighten the internal clamping mechanism until the unit is immobile on the bar.
Secure: Thread a security chain through the integrated loop and around a fixed rack upright or heavy stationary object.
Lock: Secure the chain ends with a high-quality padlock (Note: Padlock and chain are not included).
Frequently Asked Questions
Q: Does it include the padlock? A: No. The Proloc Blocker provides the mounting point for a lock, but the padlock and chain must be purchased separately.
Q: Will it fit on my Axel Bar? A: It is designed for standard 50mm (2") Olympic sleeves. If your specialty bar has standard sleeves, it will fit. It is not compatible with bars that use 1.9" pipe sleeves (like standard Axles) unless specifically noted.
Q: Can I use it on both ends of the bar? A: While one Blocker is usually sufficient to prevent use (as weights cannot be loaded on that side), some users prefer to buy two to fully immobilize the bar against a wall or rack.