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Peterson Sawmill Running Costs
To give you an idea of the costs involved in running a Peterson sawmill, below are the general costs involved in an average day milling, both in NZ and US prices. These are the approximate portable sawmill service prices and running costs, based on working an 8-hour day, five days a week, on an 27hp Kohler-powered Winch Production Frame using an 8″ blade (tables updated 2025, excl. vehicle expenses, overheads and any loan interest).
New Zealand
| Cost | Daily | |
| Running costs | ||
| Fuel usage 7.5 litres petrol p/hour | NZ$2.50/l | NZ$75.00 |
| Blade teeth, retip per 80 cube | NZ$84 | NZ$4.20 |
| Blade tension per 200 hours | NZ$60 | NZ$1.20 |
| Springs, screws, rubber, oil etc per week | NZ$10 | NZ$2.50 |
| V-Belts – one set per 100 cube | NZ$90 | NZ$3.60 |
| Maintenance | ||
| Rollers – set per 600 hours | NZ$161 | NZ$1.07 |
| Motor oil service/filters etc @ 100 hours | NZ$140 | NZ$5.60 |
| Gearbox oil changes, repair kits per 100 hours | NZ$210 | NZ$8.40 |
| Replacement | ||
| Gearbox replacement est. per 1,000 hours | NZ$1,946 | NZ$7.78 |
| Misc handles, bolts, guards etc. per 400 hrs | NZ$60 | NZ$0.60 |
| Motor est. per 4,000 hours (5-6 years) | NZ$5,900 | NZ$5.90 |
| New blades est. 1 every 2 years | NZ$672 | NZ$2.10 |
| TOTAL DAILY RUNNING COSTS | NZ$117.60 | |
| DAILY INCOME: (based on average charge-out rate sawn timber: NZ$240/cube) | NZ$960 | |
United States
| Cost | Daily | |
| Running costs | ||
| Fuel usage 2 gallons gasoline p/hr | US$3.15/g | US$25.20 |
| Blade teeth, retip per 21,200bft | US$60 | US$4.80 |
| Blade tension per 200 hours | US$42 | US$0.84 |
| Springs, screws, rubber, oil etc per week | US$10 | US$2.50 |
| V-Belts – one set per 42,400bft | US$75 | US$3.00 |
| Maintenance | ||
| Rollers – set per 600 hours | US$130 | US$0.87 |
| Motor oil service/filters etc @ 100 hours | US$120 | US$4.80 |
| Gearbox oil changes, repair kits per 100 hours | US$180 | US$7.20 |
| Replacement | ||
| Gearbox replacement est. per 1,000 hours | US$1,567 | US$6.27 |
| Misc handles, bolts, guards etc. per 400 hrs | US$50 | US$0.50 |
| Motor est. per 4,000 hours (5-6 years) | US$4,750 | US$4.75 |
| New blades est. 1 every 2 years | US$541 | US$1.69 |
| TOTAL DAILY RUNNING COSTS | US$62.42 | |
| DAILY INCOME: (based on average charge-out rate sawn timber: US$0.40/bft) | US$678 | |
Frequently Asked Questions About Sawmill Running Costs
What are the main running costs of a Peterson portable sawmill?
The primary ongoing costs for a Peterson swingblade sawmill are fuel (for petrol/diesel models), blade maintenance (sharpening and occasional replacement), and general engine servicing (oil, filters, and spark plugs). Because Peterson mills are engineered for simplicity with very few wearing parts, major repair costs are rare, keeping overall operating expenses remarkably low compared to other machinery.
How much fuel does a Peterson sawmill use per hour?
Fuel consumption depends on the engine size and the hardness of the wood being milled. On average, a Peterson petrol-powered sawmill (such as the 14hp or 27hp Briggs & Stratton models) uses approximately 1 to 1.5 liters (0.26 to 0.4 gallons) of fuel per hour. Diesel and electric options offer even greater fuel efficiency for high-volume commercial sawyers.
How long does a swingblade sawmill blade last?
With proper maintenance, a Peterson swingblade blade can last for years. You should sharpen the blade every 1 to 2 hours of cutting using the supplied Peterson blade sharpener. A single blade can be sharpened many times before needing replacement. Depending on the wood type and how often you mill, you may only need to buy a new blade once a season or every few years.
Are swingblade sawmills cheaper to run than bandsaw mills?
While bandsaw mills have a thinner kerf (cutting width) which produces slightly less sawdust, Peterson swingmills often win on overall running costs and time efficiency. Swingblade blades are made of heavy-duty steel plate, meaning they don’t snap or require constant welding like bandsaw blades. You also don’t need to buy and store multiple blade sizes, and you never have to stop to change blades mid-cut to switch between horizontal and vertical cuts.
Do I need to buy blade lubricant for a Peterson sawmill?
No. Unlike bandsaw mills that require a continuous drip of water or specialized lubricant to keep the blade cool and clear pitch, Peterson swingblade sawmills do not require blade lubricants. The circular blade design naturally dissipates heat and clears sawdust, saving you the ongoing expense and mess of lubrication fluids.
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Speak to Peterson owners in your area
If you’re researching a sawmill purchase, the best people to speak to are those who operate the machines on a regular basis. The millers in our Owner’s Network have made themselves available to you to ask questions by phone or email, and some of them even offer private demos and open days at their milling sites.
Some owners aren’t publicly listed. Reach out to us, we’ll check our records and connect you with owners in your area.