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Express tunnel conveyor rollers are wheel-like components connected to the chain in your conveyor system. The wheels, typically made of a very hard, tough plastic, are attached to a stiff shaft made of robust metal. The roller assembly is placed behind the vehicle wheel, and the shaft provides enough resistance to push the car along. The wheels allow the tire to rotate, allowing the vehicle to move along smoothly and naturally through your tunnel.
We carry replacement rollers for popular express tunnel conveyors like Belanger, Ryko, Hanna, Motor City, and others! We also offer replacement pusher and idler wheels if yours have become worn out or damaged but the shaft is still usable. With regular use and stress, flat spots often appear on the conveyor wheels, prohibiting proper spin and affecting the smooth movement of vehicles. Keep spare assemblies on hand in case of a significant issue, as well as replacement wheels if you need to replace one quickly.
The cost of a car wash conveyor system and its corresponding parts varies based on factors such as brand, length, capacity, and the specific features required for your operation. For new installations, complete conveyor systems typically represent one of the most significant investments in a tunnel car wash, but provide long-term value by supporting high vehicle throughput and efficient service. Replacement parts—like rollers, shafts, and pusher assemblies—are typically affordable and designed for quick swaps to reduce downtime and keep your wash lanes operational. A single replacement wheel might cost less than $10 while a replacement roller may range from $50 to around $100.
The two primary roller types are pusher rollers and idler rollers.
Tunnel car wash conveyor systems are available in several configurations designed to meet the demands of different business models and vehicle volumes.
The average tunnel has 80 rollers. You can maintain your car wash rollers to get the most from their lifespan. Here are a few tips and tricks:
If your conveyor system begins to show signs of inconsistent vehicle movement, excessive noise, or visible roller wear, it’s time for a closer inspection.
The most common materials used in these rollers are high-density polyethylene (HDPE) or other engineered plastics, chosen for their excellent abrasion resistance and strength under repeated stress. These plastics resist cracking, chipping, and deforming, even with frequent exposure to harsh cleaning agents and temperature changes.
In addition to the wheels themselves, the roller shafts are typically constructed from durable metals like stainless steel or zinc-plated steel, which offer a strong balance between rigidity and corrosion resistance. This careful pairing of materials ensures that car wash rollers continue providing consistent support and movement for each vehicle, helping reduce the likelihood of roller failure or system downtime. Moreover, manufacturers often design rollers with reinforced hubs or internal bearings to further enhance their durability.
When selecting rollers and parts for your car wash conveyor, it's crucial to consider a range of technical specifications. Certain terms you might see used include the bore, diameter, length, construction, wheel size, or idler. Here's a breakdown of some key insights:
Choosing the right car wash rollers begins with understanding the material properties and load ratings, since these directly affect durability and performance in demanding tunnel environments.
High-density polyethylene (HDPE) and similar engineered plastics are the preferred materials for car wash rollers due to their outstanding resistance to abrasion, impacts, and exposure to water, chemicals, and extreme temperatures. These plastics can flex slightly under pressure without cracking, which allows the rollers to maintain their integrity even after thousands of cycles each day.
In addition, manufacturers select reinforced hubs and incorporate high-quality ball bearings to provide smooth, low-friction rotation and to further reduce the chance of flat spotting or binding. Roller shafts are typically made from stainless or zinc-coated steel so they can handle high axle weights, often several thousand pounds, without risk of bending or corrosion.
When evaluating load ratings, consider not just the weight of the individual vehicle, but also the combined stress from continuous operation and occasional abnormal loads from oversized vehicles. For optimum reliability, it's important to select rollers and shafts that meet or exceed the specifications for your conveyor’s make and model.
Roller lifespan depends on the quality of the materials used, adherence to maintenance best practices, and the operational conditions within the tunnel. While some rollers can last upwards of 100,000 vehicle passes, heavy usage and infrequent maintenance will shorten service intervals. Regular visual checks, prompt replacement of worn parts, and keeping the system lubricated avoid unexpected failures and maximize the useful life of all components.