Magnetic Particle Testing Break-Even: About $82K Monthly Revenue

Fixed costs $26.9K Monthly base load

Contribution margin 75% After variable spend

Break-even revenue $35.9K Monthly target

Break-even timing Month 7 Cash break point

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against the break-even point for a magnetic particle testing service.

Lean Base Full

Monthly revenue Revenue sets the margin available to cover fixed costs each month. $ Low sales High sales Variable expenses Direct costs rise with each billed inspection hour and trip. $ Low direct cost High direct cost

Money available to cover fixed costs $213,193 $271,583 revenue - $58,390 variable expenses

Margin ratio

79%

Covers fixed costs

Yes

Fixed monthly costs These monthly overhead costs must be covered before profit starts. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which magnetic particle testing expenses are fixed and which move with sales?

Cost classification

Month 7 break-even only holds if fixed overhead stays fixed and usage costs move with revenue. Misclassifying leases, certified labor, or fuel can overstate margin and make the $602,000 minimum cash need look safer than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Facility Lease and Lab Space	Fixed	Include $6,500 per month from Month 1 through Month 60 as base overhead.	Scaling lab rent with billable hours.
General Liability and Professional Insurance	Fixed	Carry $3,200 per month as required overhead before any job revenue.	Treating insurance as a per-inspection charge.
Vehicle Fleet Lease Payments	Semi-fixed	Use $4,500 per month until added vehicles create the next capacity step.	Mixing lease payments with fuel usage.
Utilities and Communications	Semi-variable	Use the $1,200 monthly baseline, then add usage pressure as field volume rises.	Letting the whole line float with revenue.
Senior American Society for Nondestructive Testing Level III Technician payroll	Semi-fixed	Model $95,000 per year per FTE, with staffing steps as qualified capacity expands.	Smoothing certified labor as a sales percentage.
Field Technician Level II payroll	Semi-variable	Model $75,000 per year per FTE tied to utilization and planned headcount.	Treating all field labor as fully variable.
Magnetic Particles and Consumables	Variable	Apply 8.5% of revenue in the first year, declining to 6.5% by the mature year.	Budgeting consumables as a flat monthly amount.
Vehicle Fuel and Rapid Deployment Costs	Variable	Apply 9.0% of revenue in the first year, declining to 7.0% by the mature year.	Hiding deployment spend inside vehicle leases.

How does break-even change from a lean launch to a full staffed magnetic particle testing service?

Scenario table

The lean launch case sits closest to break-even, the growth case adds a real cushion, and the full staffed case has the strongest margin. The shift comes from higher-priced, repeat client work spreading fixed field and lab costs.

These are planning assumptions, so actual break-even can move with client mix, field travel, and how fast utilization ramps.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch plan	$88.8K	$22.2K	$67.7K	75.0%	-$1.1K	Near break-even, so Month 7 is tight.
Growth base case	$183.6K	$42.8K	$85.2K	76.7%	$55.7K	Positive cushion appears once repeat industrial work fills the schedule.
Mature full staffed plan	$488.8K	$88.0K	$176.8K	82.0%	$224.0K	Strong cushion, but only if crew utilization stays high.

What pushes this magnetic particle testing service off break-even?

Stress test

The base plan has only a small cushion, so it does not take much to miss break-even. If revenue slips, fixed costs rise, or variable spend drifts up, that buffer can disappear fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change; revenue is $888K and fixed costs are $615K.	$820K	$51K cushion	Utilization still has to stay on plan.
Revenue shortfall	Revenue drops 15% to $755K.	$820K	$49K gap	A small sales miss nearly wipes out the cushion.
Fixed-cost increase	Fixed costs rise 10% to $677K.	$903K	$11K gap	Lease, insurance, or fleet inflation can flip the model.
Margin pressure	Variable expenses rise to 30% of revenue.	$879K	$7K cushion	Fuel, consumables, or PPE creep leaves almost no room.
Combined pressure	Revenue drops 15%, variable expenses rise to 30%, and fixed costs rise 10%.	$967K	$149K gap	A weak month plus cost pressure turns break-even into a large miss.

Can the founder prove demand and staffing before committing to the lease, fleet, and first hiring wave?

Founder checklist

Yes—only if the first-year pipeline can support about $82K in monthly break-even revenue and the team can cover Level III and Level II work from day one. Don’t lock in the lease, vehicles, or lab spend until those jobs are real.

1Pipeline Proof$1.07M Y1

Confirm booked and near-booked work can carry Year 1 revenue, because the mix is concentrated at 45% oil and gas, 30% manufacturing QC, and 15% aerospace MRO.

2Fixed Load$17.8K/mo

Keep lease, insurance, software, fleet, utilities, and admin at this monthly level before payroll, so you know the base cost you must cover first.

3Rate Check75% CM

Hold hourly prices near $185 for oil and gas, $150 for manufacturing QC, and $225 for aerospace MRO, because Year 1 variable costs take 25% of revenue.

4Crew Coverage1 LIII / 2 LII

Verify one Level III technician and enough Level II technicians are ready before critical work, since the service needs certified field coverage from launch.

5Cash Cushion$602K min

Protect the Month 6 cash low point before adding capex, because the model’s minimum cash is $602K and payback does not arrive until later.

6Route Demand90% route load

Build launch routes that can hold fuel and rapid deployment near the Year 1 assumption and consumables near 8.5% of revenue, or the mobile model gets thin fast.