PEEK · polyether ether ketone

PEEK tubing and
moulded and machined parts

PEEK is a high-performance engineering plastic that keeps its stiffness and dimensions past 250 °C. Extruded tubing, heat shrink tubing, moulded parts and machined parts — 4 items.

4 published itemsMoulded and machined parts to drawing
Inner diameter
0.10–23.00
mm
Wall
0.05–3.00
mm
Long-term heat
250
°C and above
Tolerance
±0.03
mm and up
Request a quote · TDSSee the comparison
PEEK tubing — seven tubes in grey, ivory and black across a range of diameters

4 published items

4 published items
Linstant published data

The same PEEK reads differently in each form. Tubing is bore and wall, heat shrink is shrink ratio, moulding and machining are process conditions.

Items
Dimensions mm
Tolerance · conditions
Service temperature
PEEK tube
ID 0.10 – 23.00 · wall 0.05 – 3.00
OD under 2 mm ± 0.03 mm
Above 250 °C
PEEK Heat Shrink Tube
Pre-shrink ID 2.0 – 8.0 · wall 0.10 – 0.30
Shrink ratio 1.3 – 1.4 : 1
−40 – 260 °C
PEEK Injection Molding
Mould temperature 120 – 150 °C
Melt 350 – 400 °C · 100 – 150 MPa
250 °C continuous · 300 °C instantaneous
PEEK Machined Parts
To drawing
High-precision CNC · sealing
260 °C
Source — Linstant published data (4 PEEK items)
Moulding and machining shown as process conditions
Tubing dimensions are production capability, not part numbers. Moulded and machined parts are quoted from drawings; the table lists process conditions.

By item

By item

PEEK tube

PEEK Tubing
PEEK tubing — six ivory tubes on a navy groundDetails →

Runs stably at 250 °C while holding high strength, fracture toughness and dimensional stability. Chemical stability, flame resistance, wear resistance and biocompatibility come with it.

Inner diameter0.10 – 23.00 mm
Wall0.05 – 3.00 mm
ToleranceOD under 2 mm ± 0.03 mm
LengthUp to 3000 mm
Takes repeat high-temperature sterilisation above 250 °C. High crystallinity gives good thermal stability.
PEEK tube — request specsDetails →TDS · MSDS available

PEEK Heat Shrink Tube

PEEK Heat Shrink Tube
PEEK heat shrink tubing — four translucent ivory tubesDetails →

A high-performance thermoplastic shrink tube. It resists extreme temperature, high pressure and corrosive liquids as a protective layer over sensitive parts and joints.

Pre-shrink ID2.0 – 8.0 mm
Wall0.10 – 0.30 mm
Shrink ratio1.3 : 1 – 1.4 : 1
Recovery temperature170 – 190 °C
Service temperature−40 – 260 °C
Dielectric strength 19 kV/mm. Biocompatible per GB/T 16886.
PEEK heat shrink tube — request specsDetails →TDS · MSDS available

PEEK Injection Molding

PEEK Injection Molding
PEEK injection moulded parts — cross-shaped parts, toothed discs and pinsDetails →

Moulded in a Class 10,000 cleanroom to meet implant regulation. Its modulus sits close to bone (about 3.8 GPa) and it passes X-rays without appearing on CT or MRI.

FeedstockPEEK pellets above 99.5% purity
Mould temperature120 – 150 °C
Melt temperature350 – 400 °C
Injection pressure100 – 150 MPa
Annealing150 – 200 °C · 1–2 h
250 °C continuous, 300 °C instantaneous. Over half the world's spinal implants are PEEK.
PEEK injection molding — request specsDetails →TDS · MSDS available

PEEK Machined Parts

PEEK Machined Parts
PEEK machined parts — threaded connectors, needle, ferrule and O-ringDetails →

Medical device components cut from PEEK stock. High hardness, corrosion resistance and a 260 °C rating let them replace metal parts.

MachiningHigh-precision CNC
Heat rating260 °C
ColourNatural · black
DimensionsTo drawing
Used for spinal fusion cages, interbody spacers, cranial repair plates and dental abutments.
PEEK machined parts enquiryDetails →TDS · MSDS available

How to choose

How to choose

Chosen by form

PEEK is one material. What differs is Form — extrude it, shrink it over something, mould it, or cut it.

Form
Items
Typical use
Extrusion
PEEK tube
Catheters · endoscope shafts
Heat shrink
PEEK Heat Shrink Tube
High-temperature insulation · protective layer
Moulding
PEEK Injection Molding
Implants · volume parts
Machining
PEEK Machined Parts
Metal-replacement structural parts
Moulding pays off at volume; machining wins on low volume and complex shapes.
Item by requirement
When a long thin tube is neededPEEK tube
When an existing part needs coveringPEEK Heat Shrink Tube
When implants go to volumePEEK Injection Molding
For low volume or complex shapesPEEK Machined Parts
When it must stay invisible on CT and MRIPEEK moulded · machined
When replacing a metal partPEEK Machined Parts
All four take steam, EtO and gamma sterilisation. Only the heat shrink tube should not be autoclaved repeatedly.

Processes that run alongside

PEEK has low surface energy, so printing needs pre-treatment. Bundling machining, bonding and marker bands in one place removes an inspection step.

PEEK tubing — six coloured tubes in brown, copper, red, orange and grey
PEEK secondary processing
PEEK Printing Pre-TreatmentTip formingHole punchingBondingMarker bandAnnealing
Related items
Polyimide TubingWhen the wall must be thinner→Fluoropolymer Medical TubingWhen lubricity is needed→Secondary processingPrint pre-treatment · bonding · marker bands→

FAQ

FAQ

PEEK or PI?

If the wall has to reach 0.01 mm, PI. PEEK moulds and machines and is stiffer on its own, which suits structural parts and implants.

How hot can PEEK run?

Extruded tubing runs stably above 250 °C; moulded parts take 250 °C continuous and 300 °C instantaneous. Heat shrink tube is −40 – 260 °C.

Can it be sterilised repeatedly at high temperature?

Yes. Properties hold through prolonged steam, EtO and gamma exposure. Only the heat shrink tube should not be autoclaved repeatedly.

Does PEEK show on scans?

It is transparent to X-rays and does not appear on CT or MRI — an advantage over metal in implant design.

Can PEEK replace a metal part?

Its hardness, corrosion resistance and 260 °C rating replace many metal parts. Send the load case and we will assess it with you.

Is surface treatment needed before printing?

Yes. We run a separate PEEK printing pre-treatment — handled alongside the surface treatment work.

Other items

Full index →
Precision Extruded TubingPrecision Extruded TubingBraided tubingBraided & Coil ReinforcedPI braided tubingPI Braided Reinforced SheathMedical Heat Shrink TubingMedical Heat Shrink TubingPI Tubing (Polyimide)Polyimide TubingPTFE linerPTFE LinerUHMWPE linerPFAS-free PTFE ReplacementBalloon TubingBalloon TubingSteerable SheathSteerable SheathMicrocatheterMicrocatheterGuiding catheterGuiding CatheterAngiographic CatheterAngiographic CatheterNegative Pressure Access SheathNegative Pressure SheathEndoscope Insertion TubeEndoscope Insertion TubeFluoropolymer Medical TubingFluoropolymer Medical TubingHigh Pressure Braided TubingHigh Pressure Braided TubingBiopsy ChannelBiopsy Channel
Contact

Send us a specification
and we answer feasibility first

Dimensions, material, application. Those three are enough to start. A drawing makes it faster. We reply with TDS, MSDS and MOQ together.

grit@octud.com010-3338-2976
01Dimensions — OD / ID / wall, or Fr
02Material or required properties · tolerance
03Application · expected volume · whether you need a TDS
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