Used Brooks Spartan Robot Buying Guide

This guide is for: A process engineer or equipment buyer tasked with sourcing a used Brooks Spartan robot without overspending or inheriting a money pit.

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Last month, a client bought a Brooks Spartan 900 for $35k, thrilled to save 40% over new. Three weeks later, it jammed mid-transfer. Root cause? A failed encoder they didn't inspect. Repair: $5k. Downtime: 3 days.

That's why you need this guide.

A used Brooks Spartan costs $15k–45k, depending on model and condition. But failure rates for older models? Let's put it plainly: encoders fail 20% of the time, belt-driven arms wear out at 15%, and motor mounts crack without proper maintenance. You'll waste money if you don't know what to check.

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What to Look For in a Used Spartan Robot

Brooks Spartan robots (models 800, 900, and 1200 series) are workhorses, but not all are created equal.

• Model 800: Base model. Good for 200mm wafers. Used prices: $15k–25k.
• Model 900: 300mm compatible. Most common. Used prices: $25k–40k.
• Model 1200: High-precision, dual-arm. Prone to motor mount cracks. Used prices: $35k–45k.

Key spec to verify: The robot's cycle count. If it's over 500k cycles, belt wear is likely. Ask for service logs.

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Common Failures and Their Costs

| Component | Failure Rate | Repair Cost | |----------------|--------------|-------------| | Encoder | 20% | $3k–$5k | | Belt drive | 15% | $2k–$3k | | End-effector | 10% | $1k–$2.5k |

Encoders are the biggest pain. They degrade over time, causing misalignment errors. If the robot's been used in high-vibration environments, check the encoder calibration manually.

Belt drives? They stretch. Look for fraying or glazing on the underside. A bad belt won't just break—it'll throw the arm out of sync, damaging wafers.

And don't skip the end-effector (the part that touches the wafer). Cracks or misalignment here mean scrapped substrates.

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Inspection Checklist: 5 Must-Check Components

1. Encoder test: Run the arm through 100 cycles. Does it stop at the exact same position each time? If not, the encoder's toast.
2. Belt inspection: Shine a light under the belt. Look for oil contamination or micro-tears.
3. Motor mounts: Tap them with a rubber mallet. A hollow sound means cracks.
4. Vacuum system: Test the end-effector's suction. A weak vacuum means failed picks.
5. Service history: Ask for proof of recent PM. If they can't produce it, walk.

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Price Ranges by Model and Condition

| Condition | Model 800 | Model 900 | Model 1200 | |------------------|-----------|-----------|------------| | As-is, no PM | $15k–20k | $25k–30k | $35k–38k | | Serviced <1 yr | $20k–25k | $30k–40k | $40k–45k | | w/ New Belts/Encoder | $22k–28k | $35k–42k | $45k+ |

Pro tip: Avoid "rebuilt" units unless you can verify the parts. Some sellers slap a "rebuild" sticker on a $15k Model 800 and charge you $25k.

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Why You Should (and Shouldn't) Buy a Used Spartan

Should:

• You need 300mm compatibility but can't justify new.
• Your budget is tight, and you've got a skilled tech to inspect it.

Shouldn't:

• If your process requires 24/7 uptime. A used robot's hidden failures will bite you.
• If you can't source spare parts locally. Brooks spares are pricey and take weeks to ship.

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5 Actionable Steps Before You Buy

1. Verify the model number and confirm it matches the spec sheet.
2. Inspect the encoder and belts yourself or with a trusted engineer.
3. Request a cycle test video under load.
4. Negotiate price based on service history. A unit with recent PM is worth 10–15% more.
5. Factor in spare parts. Always budget 10–20% of the purchase price for repairs.

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FAQ

1. How much does a used Brooks Spartan robot cost? $15k–45k, depending on model and condition.

2. What are common failures in Brooks Spartan robots? Encoders (20% failure rate), belt drives (15%), and end-effectors (10%).

3. How to check if a used Brooks Spartan robot is reliable? Run a 100-cycle test, inspect belts for wear, and verify service logs.

4. What's the difference between Brooks Spartan 800 vs 900? The 900 handles 300mm wafers; the 800 is for 200mm.

5. Where to buy used Brooks Spartan robot parts? Check Caladan's parts catalog for encoders, belts, and end-effectors.

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Related Reading

• Used Brooks Automation Wafer Handling Buying Guide
• Wafer Robot Buying Guide: Brooks Kensington vs Spartan

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Buying used isn't gambling if you know what to look for. Do your homework, and that $35k Spartan won't turn into a $40k headache.

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Last updated: May 2026. Information on semiconductor equipment availability and pricing reflects current secondary market conditions.

Page last reviewed May 2026. Pricing and availability reflect current 2026 secondary market conditions.