3"/4"/5" Thread stem with total lock Medium ESD Caster Wheels

Feel the distinctive, resilient texture of the grey TPR tread—a material with a 65-70 Shore A hardness that provides a perfect balance. It offers gentle support without being so soft it deforms under load or so hard it risks damaging expensive conductive flooring. As it rolls, you won't hear the clunky rumble of generic casters, but rather a low, smooth hum—the sound of high-quality TPR engaging gently with the floor surface.

At its core lies a dual-protection system. The all-metal threaded stem offers a cold, industrial-grade feel of reliability. During installation, the crisp, definitive "click" of each thread engaging signals a connection far more secure than any friction-fit stem. Engaging the total-lock pedal delivers two satisfying, solid "clicks"—the first locks the wheel from rolling, the second immobilizes the swivel. In that moment, your sensitive measurement station or component-laden cart becomes an immovable fixture. Crucially, whether at rest or in motion, the wheel's electrostatic dissipative pathway works silently and continuously, channeling charges safely to ground. You'll notice the absence of that annoying static zap when touching equipment, replaced by the assured feeling of a zero-potential environment.

Dual-Mode ESD Protection Core: A uniquely formulated TPR tread provides two industry-standard resistance ranges: Conductive (10³-10⁵ Ω) for rapid grounding, or Anti-Static (10⁸-10¹⁰ Ω) for controlled dissipation, meeting the precise needs of high-sensitivity assembly to general EPA zones.

Engineering-Grade Threaded Stem Security: Utilizing standard metric threading, it achieves superior anti-rotation and anti-pullout strength through rigid metal-to-metal engagement, ensuring a connection that won't loosen under high-frequency maneuvering or impact.

One-Step, Dual-Action Total Lock: A patented mechanism actuated by a single foot pedal simultaneously locks both wheel rotation and caster swivel, delivering 360-degree stability for parked equipment.

Optimized Composite Wheel Construction: Features an innovative design pairing a PP (Polypropylene) core for a lightweight, rigid structure with a TPR (Thermoplastic Rubber) tread for excellent elasticity, quiet operation, and floor protection.

Robust Medium-Duty Load Capacity: With a carefully engineered load rating from 80 kg to 140 kg per caster across sizes (2.5" to 5"), it ensures smooth rolling and stable steering even at critical weights.

Superior Electrostatic Control: Our conductive and anti-static TPR casters effectively dissipate static electricity, preventing electrostatic discharge (ESD) that can damage sensitive electronic components, disrupt production lines, or pose risks in flammable environments. This feature ensures a safe and stable working environment.

Excellent TPR Material Properties: Crafted from high-quality thermoplastic rubber (TPR), these casters offer outstanding abrasion resistance, shock absorption, and noise reduction. They can withstand heavy loads while maintaining smooth rolling, reducing floor damage and ensuring quiet operation.

Versatile Design Options: Available in various sizes, load capacities, and configurations, including swivel and fixed types, with or without brakes. This flexibility allows customers to choose the most suitable caster for their specific applications, meeting diverse industrial needs.

Corrosion and Chemical Resistance: TPR material provides excellent resistance to chemicals, oils, and solvents, making these casters ideal for use in harsh industrial environments. They also resist rust and corrosion, ensuring a long service life even in humid or corrosive conditions.

Easy Installation and Maintenance: Designed for quick and hassle-free installation, our casters require minimal maintenance. The durable construction reduces the frequency of replacement, saving both time and cost for our customers.

Applicable Industries

Electronics Manufacturing: Essential for safeguarding sensitive electronic devices and components during assembly, transportation, and storage, preventing ESD damage that could lead to product defects or failures.

Pharmaceutical and Medical: In pharmaceutical production and medical facilities, where static electricity can attract dust and particles, these casters help maintain a clean and sterile environment, ensuring product quality and patient safety.

Aerospace and Defense: Critical for handling high-value aerospace components and military equipment, protecting them from ESD-induced damage during manufacturing, testing, and maintenance processes.

Data Centers: With a large number of sensitive electronic servers and equipment, data centers rely on our anti-static casters to prevent electrostatic interference, ensuring stable operation and data integrity.

Printing and Packaging: In environments where paper, plastic films, and other materials are prone to static buildup, our casters eliminate static-related problems, such as sheet sticking and misalignment, improving production efficiency and product quality.

Automotive Manufacturing: Used for transporting automotive parts and assemblies, these casters protect components from ESD damage and provide smooth mobility on factory floors, contributing to streamlined production processes.