Don’t endure another rough ride.

Whether you are the equipment operator, owner, or contractor, TyrFil is looking out for you.

Equipment Operators Equipment Owners Contractors Unions HR & Corporate Construction

What is Solid Shock?

“Solid Shock” refers to the harsh impact of g-force vibration emitted to heavy industrial vehicle operators and their equipment from solid aperture tires. Not only is Solid Shock a major source of wear and tear on machines, but it’s also a leading cause of Whole Body Vibration.

  • Whole Body Vibration (WBV) can be a result of Solid Shock. WBV has been linked to adverse health effects, including lower back pain, headaches, joint pain, and fatigue.
  • Operators who have experienced WBV cannot perform their jobs, are not meeting their optimal expectations, and are costing businesses millions of dollars in loss of productivity.

Preventing Whole Body Vibration (WBV) with TyrFil

To understand Solid Shock, you have to get to the root of the problem. When heavy OTR equipment uses solid aperture tires, excessive g-force vibrations are transmitted from the road or surface through the tires, the vehicle suspension, and ultimately to the operator. This causes the operator to experience a rougher ride compared to polyurethane-filled pneumatics or pneumatic tires.

A significant indication of the cushioning ability of any tire lies in the durometer, or hardness, of the rubber compound and other components. A solid aperture tire with high durometer components is harder and absorbs less impact. A tire with lower durometer components, such as polyurethane tire fill, is softer and absorbs more impact.

Comparing Tires:

Solid Aperture Tires

Higher durometer components. Do not go flat, but contribute to the rough ride and WBV.

Pneumatic Tires

Lower durometer components. Can provide a comfortable ride, but ultimately will go flat well before their time.

Tyrfil Poly Filled Tires

Lower durometer components. Provide a comfortable ride, reduce WBV exposure, and never go flat.

TyrFil polyurethane filled tires are designed for operator safety because they transfer the lowest g-force vibration of all flatproofing systems.

From the perspective of the driver’s seat: TyrFil polyurethane fill provides better rough terrain traction and tire deflection (i.e. optimal tire contact area), which can reduce worker attrition and job absence due to Whole Body Vibration. No other tire flatproofing technology absorbs a g-force solid shock as well as TyrFil. Only the TyrFil treatment provides a smooth, safe ride – resulting in less injury to operators, less wear on equipment, and totally flatproof tires.

From the equipment owner’s perspective: TyrFil is two-fold. (1) The TyrFil tire provides a more comfortable ride, less vibration, reduced shock. (2) The TyrFil tire will never go flat – you will get the maximum comfort and the maximum performance from your tires!

Vibration transmitted to a vehicle is of great concern. Exposure to constant and severe vibrations will ultimately cause premature fatigue and damage the vehicle components. As vehicles are operated by a riding driver, the effects of vibration on the human component cannot be ignored.

– Helmut Paschold, PhD., CSP, CIH
Assistant Professor, Department of Safety Sciences
Indiana University of Pennsylvania
Whole Body Vibration, Field Testing Project Consultant

Learn More About TyrFil’s Benefits

Why is Whole Body Vibration potentially dangerous?

Three key axes are used to measure shock and vibration. The Gx (front to back), Gy (lateral, side to side) and Gz (vertical top to bottom). These axes measurements help identify vibration patterns and intensity.

Who are key targets of WBV?

Quarry & Mining Industry

Construction & Earth Moving

Waste, Recycle & Landfill Management

Port Operations

Fleet Managers

Rail Freight Operations

Lumber & Milling Industry

Operators of OTR equipment with solid aperture tires may have increased exposure to WBV as a result of significant g-force transmission from the road to the vehicle.

  • Back injuries and issues are significant symptomatic effects of the WBV phenomenon
  • WBV is a major source of lost time in occupational environments
  • About 8 million U.S. workers have occupational vibration exposure

The Cost of Solid Aperture Tires

While the longevity of a solid aperture tire may be attractive to an equipment owner, the ill effects that stem from this rough ride may be more than bargained for. The benefits of a TyrFil poly filled tire offer both comfort and long life. No flats, no repairs, no loss time on the job. Everyone wins.

It’s What’s Inside that Counts!

Since 1971, TyrFil has been committed to improving performance and safety in even the most hazardous conditions. Our line of technologically advanced tire flatproofing products deliver the ride of a pneumatic tire with the assurance and durability of a solid tire.

Learn More About the Impact of Solid Shock

May 4, 2017

A Shock to the System

When an Off-the-Road (OTR) equipment operator climbs into the cab to log in his eight to 10-hour shift, little does he know that the rougher the ride, the higher the…
August 5, 2016

MAY 2016

April 21, 2015

JULY 2016

April 21, 2015


When an Off-the-Road equipment operator climbs into the cab to log in his 8-10 hour shift, little does he know that the rougher the ride, the higher the probability his body might be incurring serious physical damage.

Differences in vibration levels between the use of solid and polyurethane-fill tires conducted at The Transportation Research Center (TRC) in East Liberty, OH, under the direction of Helmut W. Paschold, Ph.D., CSP, CIH Safety Consultant.

This study measured and recorded total vibration and whole body vibration (WBV) levels on a telehandler at a constructed test track facility. The study examined differences in vibration levels between the use of solid and polyurethane-fill tires.

Article in July 2016 issue of Lift and Access magazine. Analyzes the choice of “to fill or not to fill” — flat-proofing as an option for maximizing tire life.


Check out these research articles by recognized authorities on the subject of Whole Body Vibration and the effects WBV can have on workers’ health.

1 – Relationships of Low Back to Internal Spine Load

2 – Work-Related Musculoskeletal Disorder
3 – Whole-body Vibration: A Systematic Review
4 – Economic Burden of Occupational Injury