Thermo Fisher vs Drucker Diagnostics: Clinical Centrifuge Comparison

Clinical centrifuges remain essential equipment in laboratories worldwide, processing millions of blood samples daily for diagnostic testing. The clinical centrifuge market is dominated by established international manufacturers, with Thermo Fisher Scientific representing one of the largest players through their Sorvall and Medifuge product lines. 

However, as laboratories evaluate equipment replacement cycles and seek to optimize their capital investments, many are exploring Thermo Fisher alternatives that offer comparable performance with advantages in warranty coverage, domestic support, and total cost of ownership.

Thermo Fisher’s Sorvall and Medifuge centrifuge lines have often served clinical laboratories for routine sample processing. When it’s time to replace or upgrade your Thermo Fisher centrifuge, Drucker Diagnostics offers USA-manufactured alternatives with comparable performance, simplified operation, and comprehensive warranty coverage.

Thermo Fisher Sorvall ST 8 vs Drucker Diagnostics DASH 24

The Thermo Fisher Sorvall ST 8 centrifuge offers exceptional versatility through its Auto-Lock rotor exchange system, allowing labs to switch between multiple rotor configurations for different applications. Drucker Diagnostics DASH 24 centrifuge provides comparable capacity in a ready-to-use configuration optimized for high-volume clinical laboratory workflows.

TThermo Fisher Sorvall ST 8DASH 24
Thermo Fisher Sorvall ST 8DASH Flex 24
InterfaceMicroprocessor, backlit displayDigital display
Max Speed4,500 rpm (TX-150 rotor)4,500 RPM
Max RCF3,260 xg (TX-150 rotor)3,450 xg
Rotor TypeInterchangeable with Auto-Lock, all sold separatelySwing-out horizontal, included in purchase of centrifuge
Max Capacity4 × 145 mL or 6 × 50 mL
8 × 50 mL (swinging bucket)
24 × 5/7 mL blood tubes
All with varying adapters and separately purchased rotor
24 × 10 mL or 12 × 15 mL
24 × 5/10 mL blood tubes
6 × 50 mL (with separate carriers)
Preset CyclesNone (manual settings)5 min / 4300 RPM / 3150 xg
6 min / 4300 RPM / 3150 xg
7 min / 3500 RPM / 2100 xg
Programmable Settings4 protocols with password protection10 custom programmable cycles
Dimensions (H × W × D)12.2 × 14.6 × 18.9 in
(31 × 37 × 48 cm)
9 × 15 × 17 in
(22.9 × 38.1 × 43.2 cm)
Weight77 lbs (35 kg)39 lbs (17.7 kg)
Package IncludesCentrifuge only, rotors sold separatelyComplete with rotor
Warranty2 years2 years (Extended Available)

Key Consideration: The Thermo Fisher Sorvall ST 8 requires purchasing rotors and buckets separately, which adds to the initial investment. The Drucker Diagnostics DASH 24 comes ready-to-use with an integrated rotor, eliminating additional rotor costs and inventory management.

Thermo Fisher Medifuge vs Drucker Diagnostics DASH 12

The Thermo Fisher Medifuge centrifuge features Thermo Fisher’s unique DualSpin rotor—a 2-in-1 hybrid design that switches between fixed angle and swinging bucket configurations using the same rotor body. Drucker Diagnostics DASH 12 centrifuge offers horizontal rotor processing with enhanced programmability.

Horizontal rotors are increasingly being adopted for applications that have traditionally relied on fixed angle rotors. This shift is driven by improved analyzer probe performance, as the horizontal separation layer created by swinging bucket rotors provides more consistent sample access and reduces the risk of probe contamination or interference during automated testing workflows.

Thermo Fisher MedifugeDASH Flex 12
Thermo Fisher MedifugeDASH Flex 12
InterfaceMicroprocessor, LED displayDigital display
Max Speed4,900 RPM5,200 RPM
Max RCF3,490 xg (Swinging Bucket)4,000 xg
Capacity8 × 10 mL (Swinging Bucket)12 × 10 mL (16 × 100 mm)
Preset CyclesNone (manual time/speed)3 min / 5200 RPM / 4000 xg
5 min / 5200 RPM / 4000 xg
7 min / 3600 RPM / 2000 xg
Programmable Settings4 program memory10 custom programmable cycles
Deceleration Profiles3 (standard, soft, brake-off)Standard with imbalance detection
Dimensions (H × W × D)9.5 × 12.8 × 17.7 in
(24 × 32.5 × 45 cm)
9 × 13 × 15 in
(22.9 × 33 × 38.1 cm)
Weight34.1 lbs (15.5 kg)34 lbs (15.4 kg)
Warranty2 years2 years (Extended Available)

Key Consideration: While the Thermo Fisher Medifuge’s DualSpin rotor offers the flexibility to switch between fixed angle and swinging bucket modes, the Drucker Diagnostics DASH 12 provides 50% more tube capacity (12 vs 8) with higher speed (5,200 vs 4,900 rpm) and greater programmability (10 vs 4 custom programs).

Key Differences: Thermo Fisher vs Drucker Diagnostics DASH Centrifuges

Rotor Configuration and Initial Investment

The Thermo Fisher Sorvall ST 8 requires purchasing rotors separately, while the Thermo Fisher Medifuge includes its complete rotor package. Both Drucker Diagnostics DASH models come ready-to-use with integrated rotors, eliminating the need for separate rotor purchases or inventory management.

Capacity Advantage

The Drucker Diagnostics DASH 24 offers significantly higher throughput than the Thermo Fisher Sorvall ST 8’s standard configurations—processing 24 tubes versus 8-24 depending on which Sorvall rotor is purchased. The Drucker Diagnostics DASH 12 provides 50% more capacity than the Thermo Fisher Medifuge (12 vs 8 tubes) in a similar footprint.

Programmability and Consistency

Both Thermo Fisher models offer 4 programmable memory positions. Drucker Diagnostics DASH centrifuges provide 10 custom programmable cycles plus three optimized presets for common clinical applications, ensuring greater consistency across operators and shifts while reducing setup time.

Speed and Performance

The Drucker Diagnostics DASH 12 delivers higher speed (5,200 rpm vs 4,900 rpm) and RCF (4,000 xg vs 3,490 xg) compared to the Thermo Fisher Medifuge. The Drucker Diagnostics DASH 24 matches the Thermo Fisher Sorvall ST 8’s clinical rotor speeds while offering larger batch capacity in a ready-to-use package.

Footprint and Design

The Drucker Diagnostics DASH 12 is more compact than the Thermo Fisher Medifuge (13 × 15 inches vs 12.8 × 17.7 inches footprint). The Drucker Diagnostics DASH 24 offers a smaller footprint than the Thermo Fisher Sorvall ST 8 (15 × 17 inches vs 14.6 × 18.9 inches) while providing higher capacity.

Which Drucker Centrifuge Replaces Your Thermo Fisher Model?

Choose Drucker Diagnostics DASH 24 to replace Thermo Fisher Sorvall ST 8 if you:

  • Process 12-24 samples per run
  • Want to eliminate separate rotor purchases
  • Need ready-to-use operation without rotor management
  • Require high-volume clinical laboratory capacity
  • Want 10 programmable settings vs 4

Choose Drucker Diagnostics DASH 12 to replace Thermo Fisher Medifuge if you:

  • Process 6-12 samples per run
  • Need higher speed and RCF (5,200 rpm / 4,000 xg vs 4,900 rpm / 3,490 xg)
  • Want 50% more tube capacity (12 vs 8 tubes)
  • Prefer horizontal rotor processing
  • Require enhanced programmability (10 custom cycles vs 4)

Making the Transition from Thermo Fisher to Drucker

Switching from a Thermo Fisher centrifuge to a Drucker Diagnostics DASH centrifuge is straightforward. Our customer service team can help you:

  • Verify capacity requirements based on your current sample volumes
  • Confirm speed and RCF specifications match your laboratory protocols
  • Ensure tube compatibility for your specific blood collection tube brands
  • Provide validation support to qualify your new centrifuge
  • Plan installation to minimize laboratory downtime

Ready to Learn More?

Contact Drucker Diagnostics to discuss which DASH centrifuge model best replaces your Thermo Fisher centrifuge. Our team is available at +1-866-265-1486 (U.S.) or +1-814-692-7661, or reach out via email at [email protected].

Try any DASH centrifuge, free for 30 days!

At Drucker Diagnostics, we understand just how important hands-on experience can be when choosing a new centrifuge. That’s why we offer a 30-day no-obligation evaluation on all of our products. Sign up online now, no payment information required, or contact us by using the form.

"*" indicates required fields

    • First Name*
      Last Name*
    • Or call 1-866-265-1486 (US Toll-Free)