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ENGINEERING INSURANCE FOR CRITICAL PRODUCTION ASSETS
Why Machinery Breakdown Cover Matters in Metal & Engineering Manufacturing
In metal and engineering manufacturing, a single machine can be a bottleneck for the whole operation. When a CNC spindle fails, a laser cutter goes down, a compressor trips, or a heat treatment oven control panel burns out, the immediate repair bill is only part of the cost. The bigger exposure is often lost production, missed delivery windows, overtime, subcontracting, expediting parts, and strained customer relationships.
Machinery Breakdown (also called Engineering Breakdown) insurance is designed to respond to sudden and unforeseen mechanical or electrical failure of insured equipment. It is typically arranged alongside Property and Business Interruption — but it is a different trigger, and it can be structured to match the machinery that truly drives your revenue.
Who This Cover Is Designed For
This policy is commonly arranged for manufacturing and engineering businesses where production depends on specialist plant and equipment, including:
Precision Engineering & CNC Workshops
- CNC milling, turning, grinding and multi-axis machining centres
- Spindle systems, tool changers, ball screws, servo drives and control cabinets
- Measurement and inspection equipment (where insurable and declared)
- Robotics and automated loading systems
- Coolant systems, filtration and swarf handling equipment
Fabrication, Processing & Heavy Engineering
- Laser, plasma and waterjet cutters
- Press brakes, guillotines, rolling mills and forming machines
- Welders, positioners and automated welding lines
- Compressors, air systems and critical utilities
- Ovens, furnaces, heat treatment and curing equipment
If your business has one or two critical machines that drive most of the turnover, that’s where breakdown cover becomes high value. We can also structure cover for fleets of machines, but we’ll normally focus first on the assets where downtime hurts the most.
What Machinery & Equipment Breakdown Insurance Covers
Machinery breakdown is designed for sudden, accidental and unforeseen failure — typically mechanical or electrical — of insured plant. Coverage is always subject to the exact wording, but the intent is to fund repair/replacement costs and, where selected, associated costs that help you recover faster.
Core Breakdown Cover
- Mechanical breakdown (e.g., bearings, gears, spindles, drive systems)
- Electrical breakdown (e.g., motors, control panels, power supply failures)
- Damage to the insured machine (repair or replacement costs)
- Testing and commissioning after repairs (where applicable)
- Reasonable dismantling and re-assembly costs
This is usually written on a “specified items” basis: you list machines and values. For some operations it can be arranged on a blanket basis, but accuracy of asset schedule is still important.
Common Extensions (Optional)
- Expediting expenses (rush shipping, overtime engineers, emergency hire)
- Debris removal and clean-up related to the breakdown
- Additional hire costs for temporary replacement equipment
- Deterioration of stock (where breakdown causes spoilage or scrap)
- Consequential loss / BI following breakdown (separate extension)
The extensions you choose should match your realistic “get back online” plan: what you would do in the first 72 hours, first week, and first month.
Machinery Breakdown vs Property Insurance: What’s the Difference?
Property insurance is typically triggered by insured perils like fire, flood, theft, storm and impact. Machinery breakdown is triggered by the machine itself failing. A CNC electrical cabinet that burns out due to an internal fault can be a machinery claim even if there’s no fire that spreads. Conversely, a workshop fire damaging a machine is normally a property claim.
The best programmes coordinate Property + Engineering Breakdown + Business Interruption so the response is clear regardless of whether the “cause” is external (fire/flood) or internal (breakdown). We can help structure this so the claims pathway is cleaner and fewer grey areas exist.
Common Exclusions & “Gap” Areas to Watch
Breakdown policies are powerful, but they are not “maintenance contracts”. Understanding the common exclusions helps you avoid nasty surprises.
Wear & Tear / Gradual Deterioration
- Normal wear and tear
- Corrosion, erosion, fatigue and gradual deterioration
- Poor maintenance or failure to follow manufacturer guidance
Insurers expect planned preventative maintenance. A “sudden failure” that is really the end result of long-term deterioration can lead to disputes.
Consumables & Tooling
- Cutting tools and inserts (unless damage is a consequence of an insured breakdown)
- Routine belts, filters, lubricants and consumables
- Software updates and licence costs (separate issue)
If you want cover for specialist tooling or customer-owned tooling, we’ll look at the right policy line and declarations.
Electrical & Control System Nuances
- Some wordings distinguish between “electrical breakdown” and “electronic equipment”
- Control boards, PLCs, drives and servo systems may need clear inclusion
- Power quality issues and surge protection requirements may apply
For CNC and automated lines, the control cabinet can be the highest-risk (and highest-cost) element. We help you present these properly.
Downtime Cover Isn’t Automatic
- Repair costs can be covered while lost profit is not
- Consequential loss / BI following breakdown is typically an extension
- Indemnity periods, waiting periods and “bottleneck” definitions matter
If your contracts are time-critical, ask us about BI following breakdown and “increased cost of working” options.
Realistic Claim Scenarios (How Breakdown Losses Actually Happen)
Claims are often complex because the cause, the damage and the business impact overlap. These examples show typical breakdown pathways:
CNC Spindle Failure
A spindle bearing fails suddenly, damaging the spindle and contaminating the lubrication system. The machine is down for 10 days awaiting parts.
- Repair/replacement costs for spindle and associated damage
- Expediting expenses (if selected) to rush parts and engineers
- BI following breakdown (if selected) for lost gross profit and overtime/subcontracting
Electrical Cabinet Burnout
A power supply fault damages drives and control boards, taking a laser cutter offline. Replacement boards are long lead time.
- Electrical breakdown response (wording dependent)
- Temporary equipment hire (if extension exists)
- Critical focus: do electronics/controls fall within insured “machinery”?
Compressor Failure Stops Production
A compressor fails and the whole plant loses pneumatic capacity. Production is halted and deliveries slip.
- Breakdown repair costs
- BI following breakdown and increased cost of working (if selected)
- Key underwriting point: redundancy and maintenance records
Press Brake Hydraulic Failure
A sudden hydraulic system failure damages components and contaminates the system. Production must be re-routed.
- Repair and recommissioning costs
- Expediting and overtime to recover schedules
- Potential scrap exposure depending on what was in-process at the time
“Our CNC machining centre went down with a sudden spindle failure and the parts lead time was brutal. Insure24 helped us structure breakdown cover with expediting and downtime options so we could keep commitments without absorbing the full hit.”
Operations Manager, UK Precision Engineering FirmFREQUENTLY ASKED QUESTIONS
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Is Machinery Breakdown the same as servicing or a maintenance plan?
No. Machinery Breakdown is designed for sudden and unforeseen failure, not routine wear and tear or maintenance. Insurers will expect preventative maintenance records and sensible service intervals.
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Will the policy cover CNC electronics, drives and control boards?
Often yes, but it depends on the wording and how equipment is scheduled. CNC operations should ensure electrical and electronic components (drives, PLCs, servo systems and control panels) are clearly included and correctly valued.
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Does Machinery Breakdown include loss of profit from downtime?
Not automatically. Repair costs may be covered, while downtime losses require a “consequential loss” or business interruption following breakdown extension. We can advise on suitable indemnity periods and waiting periods.
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How do we set the correct sum insured for CNC and specialist machinery?
The value should reflect replacement cost (including installation, commissioning, freight and duties where relevant). For older machines, consider realistic replacement options and whether parts lead times increase business interruption exposure.
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What information do insurers need for a machinery breakdown quote?
Typically: an asset list with make/model/age/value, maintenance regime, any prior breakdown history, criticality/bottleneck machines, site protections (power quality, surge protection), and whether you want expediting or downtime cover.
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Can expediting expenses be included to speed up recovery?
Yes. Many policies can include expediting expenses to cover rush shipping, overtime engineers, emergency hire and other costs that reduce downtime (subject to the selected extension and limits).