Costs of Cleaning
Cleaning Costs
The cost of cleaning can be simply split into equipment costs and running expenses.
Equipment Costs
If sufficient plant air is not available and a dedicated compressor must be purchased to run the blaster, budget costs in the UK for a suitable compressor and dryer package are as follows:
| Item | GBP |
| Rotary Screw Compressor with 55 kW electric motor, water separator fitted with after cooler/dryer package. | £12,000 |
| Air Receiver 500/900 litres rated for 10 bar max working pressure. | £700 |
| Output Pressure Regulator with 1″1/2″ ports | £275 |
| Installation & Commissioning | £900 |
| Clean Surface System 2000 Blaster with all accessories | £8,975 |
| Total: | £22,850 |
The above prices are averages based on various UK suppliers’ quotations and although every attempt has been made to give realistic net prices, lower prices are often negotiable at the time of order placement.
A lower total cost can be achieved by specifying a lower capacity 7 bar compressor, but this is false economy, except for the simplest tasks, as cleaning efficiency rises rapidly with higher air capacities, making the payback of the small extra investment very rapid.
If you are in doubt about selection of a compressor, we will be pleased to review your proposed specification. Please email sales@cleansurface.co.uk. or call +44 116 224 0072.
Running Expenses
The total running cost per hour of a Clean Surface dry ice blaster is dependent on its utilisation, the compressed air source and the cost of consumables. Assuming that existing compressor plant can provide the required volume of air, the running expenses a for a system operated in the UK in 2009 is made up approximately as follows:
- Dry ice @ 30 kg/h (This is the same for all Nozzle sizes)
- Power cost of 10 pence per kW for compressor motor rated at 55 kW for high pressure blasting
- Compressor motor efficiency: 92% on full load (55kW) 85% on standby (11 kW)
- Equipment depreciation at 20 % per annum
- 2000 hours utilisation per annum
- Operational utilisation of 60% on full load and 40% on standby
| Depreciation | £0.90 |
| Power | £4.10 |
| Dry Ice | £20.00 |
| Rounded Total | £25.00 |
The dry ice cost is based on the purchase of 300kg per container, per delivery inclusive all charges. As usage increases the delivered cost per kg will decrease.