A firewall cart is a purpose-built piece of equipment designed to safely transport and store gas cylinders while providing a fire-resistant barrier between them. Whether you’re managing a welding shop, a construction site, or an industrial facility, selecting the right firewall cart can directly impact both workplace safety and operational efficiency.
At Anthony Carts, we manufacture gas cylinder carts built to meet the demands of real-world job sites. Before you invest in a firewall cart, there are several factors worth evaluating to make sure you’re getting the right product for your application. From construction materials to regulatory compliance, every detail matters when you’re moving compressed gas cylinders through active work environments. This guide breaks down the key considerations so you can make an informed purchase.
Understanding What a Firewall Cart Does
The Purpose of a Firewall Barrier
A firewall cart separates incompatible gas cylinders, typically oxygen and fuel gas, with a metal partition that meets fire resistance standards. This partition prevents direct flame contact between cylinders in the event of a fire or flashback.
Why It Matters on the Job
OSHA regulations require that oxygen cylinders be stored at least 20 feet from fuel gas cylinders or separated by a fire-resistant barrier at least five feet tall. A firewall cart satisfies this requirement in a compact, mobile format, allowing workers to keep both cylinders nearby without violating safety codes.
Construction Material and Build Quality
Steel Gauge and Frame Durability
Not all firewall carts are built the same. Thicker steel gauge means a stronger frame that holds up under heavy use. Look for carts made from 12-gauge or heavier steel, especially if the cart will be used on rough terrain or moved frequently throughout the day.
Weld Quality and Finish
Check how the frame is welded. Continuous welds along stress points indicate a cart built to last. A powder-coated finish adds corrosion resistance and extends the life of the cart, particularly in outdoor or humid environments.
Weight Capacity and Cylinder Compatibility
Matching the Cart to Your Cylinders
Gas cylinders vary in size and weight. A standard acetylene tank weighs around 120 pounds, while a full oxygen cylinder can weigh over 150 pounds. Your firewall cart needs to support the combined weight of both cylinders plus any additional accessories.
Accommodating Different Tank Sizes
Some carts are designed for specific cylinder diameters, while others offer adjustable chain restraints or brackets. Before purchasing, confirm that the cart can securely hold the exact cylinders you use. A loose fit creates a tipping hazard, and an overly tight fit makes loading and unloading difficult.
Wheel and Caster Configuration
Terrain Considerations
Where you use the cart determines what type of wheels you need. Pneumatic tires handle gravel, dirt, and uneven surfaces well. Hard rubber or polyurethane casters work better on smooth shop floors and concrete. Some carts offer a combination of fixed and swivel casters for better maneuverability.
Load Distribution
- Larger rear wheels bear most of the weight and should be rated for the full load capacity of the cart
- Swivel front casters allow tighter turns in confined spaces
- Locking brakes on at least two wheels keep the cart stationary during cylinder use
- Pneumatic tires absorb shock and reduce vibration during transport across rough surfaces
Compliance with OSHA and DOT Standards
OSHA Storage Requirements
OSHA 29 CFR 1910.253 outlines the requirements for storing and handling compressed gases. The firewall partition must be at least five feet tall, made of noncombustible material, and have a fire resistance rating of at least half an hour. Any cart you purchase should meet or exceed these specifications.
DOT Transport Regulations
If you’re transporting gas cylinders on public roads, the Department of Transportation has additional rules about securing cylinders during transit. Make sure the cart’s restraint system, whether chains, straps, or brackets, keeps cylinders upright and immobile while in motion.
Firewall Height and Partition Design
Minimum Height Requirements
The firewall partition must extend high enough to create a meaningful barrier between the oxygen and fuel gas cylinders. As noted above, OSHA requires a minimum of five feet. Some manufacturers cut this close. Others build the partition with additional height for added protection.
Partition Thickness and Fire Rating
A thinner partition may technically meet minimum standards, but thicker steel offers better heat resistance and structural integrity during a fire event. Ask the manufacturer about the fire rating of the partition material and how it was tested.
Portability and Storage Features
Handle Design and Ergonomics
A cart that’s difficult to push or steer won’t get used properly. Look for carts with ergonomic handle grips positioned at a comfortable height. Some models include a tilting mechanism that makes it easier to roll loaded carts over thresholds and small obstacles.
Compact Footprint for Storage
- Measure your storage area before purchasing to confirm the cart will fit
- Some carts are designed with a narrower profile to navigate through standard doorways
- Foldable handles or removable components can reduce the storage footprint when the cart is not in use
- Stackable designs allow multiple carts to be stored vertically in limited shop space
Choosing a Manufacturer You Can Trust
Reputation and Product Warranty
Buy from a manufacturer that specializes in gas cylinder handling equipment. A company focused on this product category will have deeper knowledge of safety requirements and use-case scenarios than a general equipment supplier. Look for warranties that cover structural defects and finish degradation.
Why Anthony Carts Is Worth a Look
Anthony Carts designs and manufactures gas cylinder carts with a focus on durability, safety compliance, and practical functionality. Every cart is built in-house with attention to the details that matter on a working job site. If you’re in the market for a firewall cart, visit Anthony Carts to explore our full product line and find the right cart for your operation.