ZEDEX® 750 family
Cryogenics, high temp & high PV – up to 280 °C
ZX-750® family is suitable for very high temperatures, combined with high pv values. However, thanks to its low brittle point it can also be used in cryogenic applications.
ZX-750V5T® should always be used when the operating temperature exceeds 200°C and the loads, service life and dimensional stability have to be improved. ZX-750V5T® has the highest permissible surface pressure for speeds between 10 and 200 m/min and the best wear values at 150°C among the ZEDEX® materials.
The modification ZX-750V5KF® has almost the same aluminium CTE and its resilience values at -196°C are the 2nd best among the ZEDEX® materials, after ZX-324V11T®.
When to use the family ZX-750® ?
- At very high temperatures
- At very low temperatures
- At very high pv values
When is the ZX-750® not suitable?
- If low water absorption is required (e.g. the family ZX-530® as alternative)
- If FDA conformity is required (e.g. the family ZX-530® as alternative)
What can be replaced?
| ZEDEX | temperature | strength | toughness | friction | precision | wear | costs | pv values | Chemicals | |||
| ZX-750V5T | 9 | 6 | 8 | 6 | 7 | 6 | 3 | 10 | 8 | |||
| ZX-750V5KF | 9 | 5 | 9 | 6 | 9 | 9 | 2 | 8 | 8 | possible | ||
| Standard materials | Replacement for | |||||||||||
| PEEK | 8 | 6 | 7 | 5 | 7 | 4 | 4 | 7 | 8 | |||
| PAI (ZX-900) | 8 | 7 | 7 | 5 | 8 | 5 | 2 | 8 | 6 | |||
| PI | 8 | 7 | 8 | 4 | 7 | 9 | 2 | 9 | 7 | |||
| TPI | 7 | 6 | 7 | 5 | 7 | 4 | 3 | 7 | 7 |
Basic type
ZX-750V5T
⟶ value the higher = better
ZX-750V5T Material data sheet
Characteristics
- hard, stiff, tough
- high dimensional stability
- high fatigue strength
- high weathering resistance
- good fire behaviour (low generation of flue gases)
- resistence to stress cracking
- vacuum suitable
- good machinability
- bondable and weldable
- contains PTFE
Resistance
- UV-radiation: (1000 hours Xenon DIN 53597)
tensile strength: no alteration, elongation at break: –30 % - Gamma-radiation: limit absorbed dose 8000 kGy
- Chemicals, resistant: solvent, dilute acids and alkalis
- Chemicals, not resistant: strong acids and alkalis, oxidizing agents
- Lubricants and fuels: resistant
- Water: max. water absorption: 0,7 %, dimensional changes: 0,4 %, up to 120 °C resistant
- Fire behaviour: oxygen index (LOI): 52 %,
classification: V-0 (UL94)
Operational parameters
- Temperature (T):
–250 °C to +300 °C (+320 °C) - Surface pressure (p):
max. 41 (125) MPa - Sliding speed (v)
max. 350 m /min - Fatigue(S)
tensile fatigue strength at 20 °C and and 106 stress cycles,
1 Hz = 35 MPa
Available as:
- plastic granules
- rods
- tubes
- sheets
- machined components
- injection moulded parts
- plain bearing bushes according to DIN
Modification
ZX-750V5KF
⟶ value the higher = better
ZX-750V5KF Material data sheet
Characteristics
- high stiffness up to 250 °C,
- high elongation at break and yield
- low thermal elongation
- impact resistant down to –196 °C
Operational parameters
- Temperature (T):
–250 °C to +280 °C (+320 °C) - Surface pressure (p):
max. 41 (125) MPa - Sliding speed (v)
max. 350 m /min - Fatigue(S)
tensile fatigue strength at 20 °C and and 106 stress cycles,
1 Hz = 55 MPa
Available as:
- plastic granules
- rods
- tubes
- sheets
- machined components
- injection moulded parts
- plain bearing bushes according to DIN
Examples of use
Product shapes, processing methods
and finished parts
Product shapes
- Granules
- Rods
- Hollow rods
- Sheets
- machined parts
- injection moulded parts
- 3D-printed parts
Processing methods
- CNC milling
- CNC lathe
- Conventional lathe
- CNC automatic lathe
- Grinding
- Threads
- Dressing – profiling
- Sawing
- Planing
- Roughening of adhesive surfaces
- Injection moulding
- Welding
- Coating – cladding
- Labelling
- Bonding
- 3D printing
Finished parts
- Precision bushings
- Plain bearing bushes according to DIN
- Sliding guides
- Slideways
- Gears
- Track rollers
- Spindle nuts
- Seals
- Scrapers
- Gear racks
- Toothed belt discs
- Rudder bearings
- Pump bearings
Documentation
Application flyer
Safety data sheets
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