Garwood compactor body hydraulics are designed to operate at maximum efficiency at low engine speeds. This means there is a reduction in noise, pollution and exhaust emissions. The side effects of this design feature is A MARKED REDUCTION IN RUNNING COSTS!
Comparison costs of operation of compactor bodies working at engine idle speed of approx. 750 RPM vs advanced speed of approx. 1100RPM.
Advice from engine manufacturers is that an engine will require approx. 50% extra in fuel usage when running at 1100RPM rather than at 750RPM.
Two examples of chassis to which Garwood Compactors are fitted would be as follows:-
6m3 Garwood Bantam - Chassis Isuzu NQR 70L
8m3 Garwood Powapact - Chassis Daf FA LF45
Estimate of common usage:- (approx)
Fuel consumed @ 750RPM - 1 Ltr Per Hour
Fuel consumed @ 1100RPM - 1.5 Ltr Per Hour
In a typical 9 hour day the Compactor mechanism would be in operation for about 3 hours.
3 hours x .5 Ltr extra fuel = 1.5 Ltrs per day
Over one week of 5 days this would reach 7.5 Ltrs
Over one year this would reach 390 Lts
With a fuel cost of £0.98 ppl, this would equate to a saving of £382.20 per year on fuel costs alone!
With the normal life of service of say 7 years, each truck would cost £2675.40 less to run, not taking into account any inflation of fuel costs.
In a fleet situation of say 50 trucks an operator would be looking at a truck life saving of £133,770.00!
*Note. None of the above includes the maintenance & repair cost savings which are difficult to quantify.