Fryer Sizing Worksheet

Two calculations decide whether a continuous fryer fits your plant, and a third tells you what the resulting oil volume will cost you in oil life. All three run on numbers you already know.

SYSTEM INPUTS

Production rate (kg/h)

Sustained rate, not peak season.

Frying time (minutes)

Time the product stays in the oil.

Belt loading (kg per m²)

How much product one square metre of belt carries.

Belt width (m)

Oil volume in the tank (kg)

Oil in finished product (%)

Fat pickup of the fried item.

Cook area required (m²) –

Fryer length required (m) –

Oil carried out (kg/h) –

Theoretical turnover (h) –

Practical turnover (80-90% of theoretical) –

Enter your numbers above.

How each number is derived

Output	Formula	What it decides
Cook area	Production rate multiplied by frying time, divided by belt loading	The total submerged belt area the product needs
Fryer length	Cook area divided by belt width	Whether the machine fits your building and your access route
Oil carried out per hour	Production rate multiplied by the fat pickup of the finished product	Your make-up oil consumption
Oil turnover rate	Oil weight in the fryer divided by oil carried out per hour	How hard the oil works, and therefore its life and your product’s shelf life

Reading the turnover result

Turnover	Reading
Under 5 hours	Faster than the industrial band. Oil is replaced quickly, which is good for oil quality but expensive in make-up oil – check the fat pickup figure is real.
5 to 10 hours	The band industrial fryers run in. Low within this band is better.
Over 10 hours	The oil sits and works too long. Oil degradation rises and finished product shelf life falls. Usually a sign the tank is larger than the throughput justifies.

Oil turnover is the single most useful number in this worksheet, because it is the one that keeps costing money after the machine is paid for. Oklahoma State University’s Food and Agricultural Products Center states the consequence directly: oil degradation increases and product shelf life decreases at high oil turnover rates.

Where the worksheet stops

These formulas size a machine; they do not price one, and they assume your product behaves the same across the belt. Buoyancy, crumb shedding and any second cook step change the answer, and those are read from your product rather than from arithmetic. Heat load, oil circulation and heating route are engineered against the cook area this worksheet gives you.

Check the result against your actual product

Send the numbers you entered here along with a photo or short video of your product and your target output per hour. An engineer returns a configuration and a quotation within 24 hours on business days.

Request a Quotation

Sources

Dunford, N. Fryer Selection and Operation (FAPC-176) and Deep Frying Basics (FAPC-126), Robert M. Kerr Food and Agricultural Products Center, Oklahoma State University.