05
Jul
2010
2010
Electric Forklifts vs Propane Forklifts vs Diesel Forklifts
by Scott McLeodThe Advantages of Electric Forklifts
- Electric forklifts have zero tailpipe emissions resulting in a better and more safe work environment for the employees
- Electric lift trucks produce less noise during operation which results in a better and more safe work environment for the employees
- Outside, on – site fuel storage is eliminated which reduces liability
- The cost of fuel is eliminated, ie save approximately $26,000 in propane over 5 years using a 5,000 lb capacity forklift 6 hours a day, 5 days a week
- Spend less on planned maintenance and repair maintenance, ie Electric lift trucks don’t have engines, transmissions or radiators
- Capacity ratings and stability are usually better at high lifting heights, partly due to a lower center of gravity
- Turning radius specifications are typically better which can increase storage capacity, reduce product and truck damage and / or increase productivity
- Rearward visibility is often better due to the absense of a propane cylinder but a non issue when compared with diesel forklifts
- Longer major component life can be expected when compared with propane forklifts but questionable when compared with diesel forklifts
- Operator productivity is often higher because there are typically fewer hand / arm / foot movements required to operate an electric lift truck
- Overall, when placed into the right application, the electric forklift will usually have the lowest total cost of ownership when compared with diesel and propane forklifts
- The debate is on over whether electric forklifts are more green than diesel or propane forklifts. At issue is how electricity is generated and how spent batteries are recycled
- There are fewer waste fluids to dispose of, ie no engine, transmission or coolant fluid changes to worry about
- In the design of the electric forklift, braking happens automatically and electrically as soon as the operator’s foot is removed from the gas pedal resulting in less brake wear
- The hour intervals between services are usually longer resulting in less cost and truck downtime over it’s useful life
The Disadvantages of Electric Forklifts
- They may or may not meet performance expectations in applications that require high and / or constant duty drive line torque, ie ramps, chiselling…. 80 volt systems are best
- The cleaning, watering and charging requirements of the expensive industrial battery are very important and may not be manageable, particularly in a multi -shift operation
- Forgetting to charge the battery overnight could result in significant productivity consequences the next day, particularly when the business operates with only ( 1 ) forklift
- May or may not meet performance and reliability expectations when exposed to cold, wet weather or abusive and corrosive applications
- Initial purchase price or capital cost is higher when compared with propane and diesel forklifts
- Adequate ventilation is required around the forklift when the battery is being recharged
- Operating in freezing temperatures will damage the truck and / or battery unless certain precautions are taken
- Battery chargers have certain voltage and amperage requirements, particularly during start up. An existing electrical service may or may not meet these requirements
- In multishift operations, spare batteries, along with a changing area, may or may not be required. Fast charge systems are available and may eliminate the need for spare batteries
The Advantages of ( LPG ) Propane Forklifts
- There is little risk associated with running out of fuel other than the inconvenience of having to change propane cylinders
- Initial purchase price or capital cost is lower when compared with electric and diesel forklifts
- The debate over whether propane emissions are cleaner than diesel continues
- Better than most electric forklifts ( not all ) when the application requires high and / or constant duty drive line torque
- Acceptable for most indoor applications provided that other WorkSafeBC criteria is met. May or may not be acceptable for food handling
The Disadvantages of ( LPG ) Propane Forklifts
- Not as effective in applications that require high and / or constant duty drive line torque when compared to diesel trucks
- Rearward visibility off the back end of the counterweight is restricted due to the location of the propane tank
- Liability exposure, ie there is always the possibility of a fuel system leak while the truck is indoors. Also, operators need to be trained on the safe handling of propane fuel
- Fuel cost is higher when compared with electric and diesel forklifts
- Possible WorkSafeBC injury claims due to the weight and frequency with which propane tanks are changed, ie +/- every 6 hours of use unless there is a bulk fill station on – site
- Propane forklifts are more difficult to start and operate reliably when operating in freezing temperatures
- Expect overall planned and repair maintenance costs plus the total cost of ownership to be the highest of the ( 3 ) options
- The cost of fossil fuels will likely climb dramatically in the years ahead
- Propane fuel is not always readily available in remote locations
The Advantages of Diesel Forklifts
- The total cost of fuel is typically less when compared with propane forklifts
- Diesel forklifts produce more drive line torque at low RPM when compared with propane and electric forklifts
- Rearward visibility is better when compared to propane forklifts
- Overall planned maintenance and repair maintenance is usually less when compared with propane forklifts, ie no tune – up components
- The debate over whether diesel emissions are cleaner than propane emissions continues
- They have a lower total cost of ownership when compared with propane forklifts but not electric forklifts
- Longer engine life is expected when compared with propane forklifts
The Disadvantages of Diesel Forklifts
- Not suitable for indoor use without expensive emissions accessories and proper ventilation
- Sometimes the capital cost of diesel forklifts can be more expensive than propane forklifts
- A bulk tank for fuel storage is sometimes required and is an extra cost above and beyond the cost of the forklift. Municipal requlations may apply to the tank installation
- The cost of fossil fuels will likely climb dramatically in the years ahead
Posted in: New Forklifts, Used Forklifts