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Cost Analysis

T-Slot vs AngleLock: True Total Cost of Ownership Analysis

A detailed breakdown comparing initial costs, maintenance expenses, downtime, and long-term value between T-slot and mechanical locking systems.

December 6, 2025
15 min read
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T-SLOTcost comparisonROItotal cost of ownershipaluminum framingt-slotmechanical lockingTCO analysisaluminum extrusion

Beyond the Price Tag: Understanding Total Cost

When comparing aluminum framing systems, many purchasers focus solely on initial material costs. This narrow view misses the bigger picture: the true cost of ownership extends far beyond the purchase order.

Over a 5-year period, maintenance, downtime, and performance issues can dwarf initial savings. Let's break down the real numbers.

Initial Investment Comparison

T-Slot System

Extrusions (100 ft)$850
Brackets & Fasteners$320
Assembly Labor (8 hrs)$600
Initial Total$1,770

AngleLock System

Extrusions (100 ft)$900
Brackets & Fasteners$420
Assembly Labor (4 hrs)$300
Initial Total$1,620
$150 less than T-slot (50% faster assembly)

* Based on typical machine base structure. Faster AngleLock assembly due to self-aligning brackets.

5-Year Operating Costs

T-Slot: Hidden Costs Add Up

Maintenance Labor$3,600

Quarterly inspection and retightening: 2 hrs/quarter × 20 quarters × $90/hr

Downtime Costs$8,400

14 hours/year maintenance downtime × 5 years × $120/hr production value

Vibration-Related Issues$4,200

Part rejection, equipment recalibration, premature wear: average $840/year

Total 5-Year Operating Cost$16,200

AngleLock: Zero Operating Costs

Maintenance Labor$0

Self-tightening connections require zero maintenance

Downtime Costs$0

No maintenance = no downtime

Vibration-Related Issues$0

Vibration-proof connections eliminate drift and quality issues

Total 5-Year Operating Cost$0

Total Cost of Ownership: The Verdict

T-Slot

Initial Investment$1,770
5-Year Operating$16,200
Total 5-Year Cost$17,970

AngleLock

Initial Investment$1,620
5-Year Operating$0
Total 5-Year Cost$1,620
$16,350

Total 5-year savings with AngleLock

(10x return on initial investment)

Factors Not Included in This Analysis

The above comparison is conservative. Additional benefits of AngleLock not quantified here include:

Equipment Longevity

Reduced vibration transmission extends life of mounted equipment (motors, sensors, etc.)

Quality Improvements

Maintained precision reduces scrap and rework in manufacturing processes

Smaller Profiles

10x stronger joints allow use of smaller, lighter, less expensive extrusions

Resale Value

AngleLock structures maintain full strength through disassembly and reconfiguration

The ROI Decision

AngleLock pays for itself through eliminated maintenance costs alone within the first year. Over 5 years, you save more than 10x the initial investment difference while gaining superior performance, reliability, and peace of mind.

For mission-critical applications where downtime is expensive and reliability is paramount, the decision is clear.

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