Tornos-Compatible Titanium Bars
Engineered specifically for Tornos bar feeders and ceramic guide bushings. Prevents collet jamming and bushing premature wear.
01 Verified Compatible Tornos Machines
Tornos Deco Series
VERIFIED- Deco 10: Single-spindle, bar diameter Ø3-10mm
- Deco 13: Single-spindle, bar diameter Ø3-13mm
- Deco 20: Single-spindle, bar diameter Ø3-20mm
- Deco 26: Single-spindle, bar diameter Ø3-26mm
All Deco models use ceramic guide bushings and high-precision collet bar feeders. h7 tolerance mandatory.
Tornos Swiss DT Series
VERIFIED- Swiss DT 13: 7-axis, bar diameter Ø2-13mm
- Swiss DT 26: 7-axis, bar diameter Ø2-26mm
- MultiSwiss Series: Multi-spindle (6/8 spindles)
Swiss DT features ceramic-coated guide bushings with tighter tolerances than standard steel bushings.
02 Why Standard Bars Fail in Tornos Machines
Risk Addressed
Bar Feeder Jam & Guide Bushing Seizure
Tornos bar feeders use high-precision collet mechanisms that require consistent rod diameter (h7 tolerance mandatory). Any diameter deviation >0.02mm causes collet slippage or jamming. Additionally, Tornos ceramic guide bushings (standard on Deco series) are sensitive to rod surface finish - rough surfaces (Ra >1.0μm) cause premature bushing wear. ValidTi rods are centerless ground to Ra 0.4μm and inspected to h7, ensuring zero-downtime feeding.
Failure Mode: Collet Jam
Tornos bar feeders use spring-loaded collets to grip and advance the bar. The collet opening must match the bar diameter within ±0.01mm tolerance.
Collet designed for Ø10.00mm cannot fully close → bar slips → feeding stops
Collet closes securely → consistent feeding → zero unplanned stops
Fig 1. Tornos Bar Feeder & Guide Bushing Integration
03 Standard vs. Tornos-Optimized Bars
| Parameter | Standard Turned Bar (h11) | ValidTi Tornos-Compatible (h7) | |
|---|---|---|---|
| Oxygen (O) Content | < 0.10% | ~ 0.13% | High Toughness; Prevents Fatigue Failure |
| Iron (Fe) Content | < 0.12% | ~ 0.25% | Superior Biocompatibility & Uniformity |
| Raw Material Source | Grade 0A Virgin Sponge | Standard Sponge (Scrap mix) | Aerospace Grade Input; Zero Inclusions |
| Diameter Tolerance | ±0.05mm (h11) | ±0.01mm (h7) | |
| Surface Finish | Ra 1.6-3.2μm (Rough) | Ra 0.4μm (Mirror Polish) | |
| Collet Feeding | Frequent jamming (every 50-100 parts) | Zero jams (lights-out operation) | |
| Ceramic Bushing Life | 2,000-3,000 parts (premature wear) | 10,000+ parts (extended life) | |
| Machine Downtime | High (bar feeder adjustments, bushing replacement) | Minimal (scheduled maintenance only) | |
| Cost per Part | Higher (downtime + bushing replacement) | Lower (continuous production) |
04 Protecting Tornos Ceramic Guide Bushings
Tornos Deco series uses ceramic guide bushings (Al₂O₃) as standard equipment. While ceramic offers superior wear resistance compared to steel, it is BRITTLE and sensitive to surface imperfections.
❌ What Damages Ceramic Bushings
-
1.
Rough Bar Surface (Ra >1.0μm)
Abrasive friction generates localized heat → thermal shock → micro-cracks → premature failure
-
2.
Diameter Variation (>0.02mm)
Bar "wobbles" through bushing → impact loading → chipping at bushing edge
-
3.
Contaminated Bar (oil, chips)
Foreign particles act as "grinding paste" between bar and bushing → accelerated wear
✓ ValidTi Protection Strategy
-
1.
Mirror-Smooth Surface (Ra 0.4μm)
Centerless grinding produces <1μm surface finish → minimal friction → bushing life extended 3-5x
-
2.
Tight Diameter Control (h7)
±0.01mm tolerance → bar runs concentrically → zero impact loading on bushing
-
3.
Clean Room Packaging
Bars wrapped in protective film immediately after grinding → zero surface contamination
Ceramic Bushing Replacement Cost
Tornos ceramic guide bushings cost $200-$400 per unit (depending on diameter). Machine downtime for replacement: 1-2 hours. Using h7 tolerance bars can extend bushing life from 2,000 to 10,000+ parts, saving $500-$1,000 per month in replacement costs alone.
ROI Calculation: h7 bars pay for themselves in 2-3 months of continuous production.
05 Common Diameters for Tornos Machines
Small Components
- • Abutment screws (M1.6 / M2.0)
- • Prosthetic screws
- • Orthodontic mini-implants
- • Surgical pins
Medium Components
- • Healing abutments
- • Transfer copings
- • Custom UCLA abutments
- • Temporary abutments
Large Components
- • Surgical instrument handles
- • Implant driver extensions
- • Custom tooling components
- • Fixture mounts
06 Quality Documentation Included
Every Tornos-compatible bar shipment includes:
Material Test Report (MTR)
ASTM F136 chemical composition and mechanical properties. Heat number traceable to original mill certificate.
h7 Tolerance Certificate
CMM inspection report verifying diameter tolerance (±0.01mm) and roundness (≤0.005mm) per ISO 286-2.
Surface Finish Report
Profilometer measurement confirming Ra 0.4μm (typical). Random sampling per ISO 4287 standard.
Request Tornos-Compatible Bars Quote
Specify diameter (match your Deco model capacity), quantity, and length. Lead time: 4-6 weeks. Minimum order: 50kg per diameter.
All bars ship with MTR + h7 Certificate + Surface Finish Report. Protective packaging included.