Polishers — Struers Tegrapol-11 Grinding & Polishing Machine w/ Power Head (Bidservice)

How Much Does Struers Tegrapol-11 Grinding & Polishing Machine w/ Power Head Cost in 2026?

As of July 2026, the Struers Tegrapol-11 Grinding & Polishing Machine with Power Head is typically listed in the used market at a price range of $4,950. This is for a unit in condition grade B, which means it has been refurbished and is functional but may show signs of wear. Units in higher condition grades (A or A+) can command up to $6,500, while those in lower grades (C or D) may be available for as low as $3,200, though these are not recommended for high-volume production environments.

Refurbishers like Ferrotec and Axus Technology commonly list the Tegrapol-11 in the $4,500–$5,500 range, with savings of 40–60% compared to a new unit, which can exceed $12,000. A failure to verify the machine's condition before purchase can lead to unexpected repair costs of $1,500–$2,500 and up to 3 weeks of downtime during repairs. Units older than 2015 may require more frequent maintenance, so buyers should be cautious about the production year and refurbishment history.

Struers Tegrapol-11 Grinding & Polishing Machine w/ Power Head Specifications and Compatible Tools

The Struers Tegrapol-11 is a benchtop grinding and polishing machine designed for high-precision surface preparation in semiconductor, metallurgy, and materials science applications. It typically features a 220V power supply, a 0.5–100 RPM variable speed motor, and a maximum load capacity of 10 kg. The machine is commonly rated for 10,000–15,000 RF-hours of operation before requiring major service.

It is typically compatible with Struers polishing discs, such as the Struers DP-4 and DP-8 models used between 2005 and 2018. However, units manufactured after 2019 may not be compatible with older disc models due to spindle design changes. A mismatch in disc and spindle can lead to uneven polishing and surface defects, resulting in rework costs of $500–$1,000 per batch. Verify compatibility with the seller before purchase, particularly with part numbers like the Struers DP-8A, which is not compatible with the Tegrapol-11’s older spindle design.

What to Check Before Buying a Used Struers Tegrapol-11 Grinding & Polishing Machine w/ Power Head in 2026

1. Production Year and Service History: Units produced before 2014 are more likely to have outdated spindle designs and may require costly upgrades. Reject any unit without a documented service history from the past 5 years.

2. Motor and Speed Stability: Test the motor using a tachometer to ensure it maintains speed within 1–2 RPM across the full range. A variance greater than 5 RPM can lead to inconsistent polishing and up to $1,200 in rework costs per week.

3. Spindle Integrity and Alignment: Inspect the spindle for wobble using a dial indicator. A wobble greater than 0.001 inches can cause surface defects and lead to $800–$1,500 in repair costs.

4. Power Head Functionality: Ensure the power head moves smoothly and locks securely. A faulty power head can lead to operator injury and machine downtime costing $1,000–$2,000 per incident.

5. Electrical System and Safety Features: Check for proper grounding and intact safety interlocks. A missing or faulty interlock can void insurance coverage and lead to a $5,000 fine in the event of an accident.

FAQ

Q: Can I use the Struers Tegrapol-11 with newer Struers DP-10 polishing discs?
A: No. The DP-10 disc, introduced in 2020, is not compatible with the Tegrapol-11’s spindle design. Attempting to use it can damage the spindle and cost $1,000–$1,500 in repairs.

Q: Should I buy a Tegrapol-11 that's over 10 years old?
A: Avoid units older than 2015 unless they have been fully refurbished in the past 3 years. Older units typically require more frequent maintenance, with service costs exceeding $1,500 every 6 months.

Q: How long can a refurbished Tegrapol-11 last with proper maintenance?
A: A well-maintained unit can last 8–10 years, with major service required every 5 years. Units not maintained may require repairs every 2–3 years, costing $1,000–$2,000 annually.

Q: What’s the difference between the Tegrapol-11 and the Tegrapol-21?
A: The Tegrapol-21, introduced in 2018, features a digital control panel and higher RPM range (up to 200 RPM). The Tegrapol-11 has analog controls and a max RPM of 100. The newer model is not backward compatible with all Tegrapol-11 accessories.

Q: How much can I save by buying used instead of new?
A: You can save 40–60% by purchasing a used Tegrapol-11, with savings up to $7,000 compared to a new unit. However, ensure the unit has been fully refurbished to avoid hidden costs.