Corn Cob Blasting Media Break-Even: About $78K Monthly Revenue

Fixed costs $61.8K/mo Base overhead

Contribution margin 82% After variable cost

Break-even revenue $75.7K/mo Monthly sales target

Break-even timing Month 1 Launch month

Break-even calculator

Test how monthly revenue, variable expenses, and fixed monthly costs stack up against break-even for a corn cob abrasive supplier.

Lean Base Full

Monthly revenue Revenue sets the margin pool that covers fixed costs. $ Low sales High sales Variable expenses These direct costs rise as sales volume grows. $ Light costs Heavy costs

Money available to cover fixed costs $830,350 $1,050,917 revenue - $220,567 variable expenses

Margin ratio

79%

Covers fixed costs

Yes

Fixed monthly costs This monthly overhead must be covered by contribution margin. $ Lean overhead Higher overhead

Break-even chart Revenue Total costs

Which corn cob media supplier expenses are fixed, variable, or scale with sales volume?

Cost classification

If you mix plant overhead with unit costs, Month 1 break-even can look safer than it is. Keep unit-linked costs in gross margin and stable monthly costs in overhead so the first-year $5.94 million revenue plan stays testable.

Expense	Cost	Break-Even Treatment	Common Mistake
Production Facility Lease	Fixed	Use $12,500 per month as monthly overhead in the break-even base.	Pushing rent into unit margin and overstating gross profit.
Industrial Utilities Base Load	Semi-variable	Use the $3,800 monthly base in overhead, then track power consumption tied to production separately.	Treating the whole bill as fixed when grinding volume rises.
Raw Corn Cob Material	Variable	Apply $4.50 per unit in the first year to each unit produced.	Using one blended rate across all grit types without checking mix shift.
Direct Production Labor	Variable	Apply $3.20 per unit in the first year for coarse and medium bulk production labor.	Counting direct labor as salaried overhead and inflating contribution margin.
Heavy Duty Packaging Bags	Variable	Apply $1.10 per unit for first-year bulk packaging where listed.	Leaving packaging out of gross margin because it feels small.
Outbound Freight and Logistics	Variable	Model at 6.5% of first-year revenue, then step down by year as assumed.	Using a flat freight dollar amount while sales volume grows.
Digital Marketing and Lead Gen	Semi-variable	Model at 2.5% of first-year revenue, but review spend quality as repeat accounts build.	Treating all lead generation as pure variable spend with no baseline activity.
Salaried Plant, Sales, Quality, Supply Chain, and Admin Payroll	Semi-fixed	Use $410,000 per year in the first year, then step up when headcount increases.	Spreading salary evenly per unit and hiding hiring step-ups.

How does break-even shift from a lean lease test to Year 2 scale for crushed corn cob blasting media?

Scenario table

Lean volume sits right on the line, while the Year 1 base case clears break-even in Month 1. By Year 2, the full case adds more cushion because revenue rises faster than fixed cost growth, even with another sales rep.

Planning cases only; actual results will move with mix, freight, and staffing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean lease test	$79.6K	$17.8K	$61.8K	77.6%	$0	Almost no cushion; one weak month can slip below break-even.
Year 1 launch plan	$495.0K	$111.2K	$61.8K	77.6%	$322.1K	Month 1 clears break-even, so launch covers the fixed base.
Year 2 scaled distribution	$724.8K	$157.5K	$68.0K	78.3%	$499.3K	Freight slips from 6.5% to 6.3% of revenue, and the cushion widens.

What can push this corn cob blasting media supplier below break-even?

Stress test

The base plan has about $495K in monthly revenue against a break-even point near $78K, so there is wide room before losses. The real breakpoints are demand softness, freight above model rate, and fixed overhead creep.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$78K	$417K cushion	Break-even sits far below plan.
Revenue shortfall	Monthly revenue falls 25% to $371K.	$78K	$293K cushion	Slow repeat orders are the first warning sign.
Fixed-cost pressure	Fixed overhead rises 10% to $67.8K per month.	$86K	$409K cushion	Extra overhead eats cushion fast.
Margin pressure	Freight and packaging pressure cuts contribution margin to 69.1%.	$89K	$406K cushion	Quoted freight above model rate is the first margin leak.
Combined pressure	Revenue falls 25%, fixed overhead rises 10%, and margin drops to 69.1%.	$98K	$273K cushion	Slow demand plus freight creep can shrink headroom quickly.

What should the founder verify before signing the lease and buying equipment for corn cob blasting media?

Founder checklist

The model reaches break-even in Month 1, but don’t sign the lease or order equipment until the opening pipeline, mix, and cash all hold. For this plant, the first month can look profitable on paper and still fail if demand or capex slips.

1Test Demand$78K/mo

Verify signed quotes or repeat orders can reach at least $78K a month in the opening month; that is the first proof the Year 1 plan can move.

2Product Mix$160.54 ASP

Keep coarse, medium, fine, precision micro, and polishing grade in the first-year mix, because the weighted average price only works at about $160.54 a unit.

3Contribution81.6%

Here’s the quick math: Year 1 direct unit cost averages about $10.21, with raw corn cob material near $4.50 a unit and bagging plus palletizing at $1.55 combined, and freight runs at 6.5% while commissions and lead gen add 5.5%, so about 81.6% stays before fixed costs.

4Fixed Load$27.6K/mo

Confirm the warehouse lease and base overhead fit inside the $27.6K monthly fixed load, including the $12,500 lease, or break-even slips fast.

5Ramp Capacity37,000 units

Make sure the plant and team can ship 37,000 units in Year 1 and scale to 125,000 units by Year 5, because the 2.0 to 6.0 FTE sales ramp assumes that volume.

6Cash Buffer$1.065M

Keep at least $1.065M ready in Month 1, since the build needs $705K of capex and a $410K Year 1 payroll plan before cash turns steady.