Mandrels

At Optinova, we understand that reliable mandrels are critical for achieving consistent diameter and roundness in catheter shaft production. That’s why we offer solutions tailored to your needs.

Curious to know how the Optinova Mandrels can improve your design?

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Reliable Performance

Tight tolerances to enable consistent diameter and roundness for catheter shaft manufacturing

Material Options

Optinova offers both PTFE and Acetal (POM) mandrels for various manufacturing needs and application requirements

PTFE Benefits

Ideal for small-sized high demanding applications. Low friction and shrinks in diameter when stretched, simplifying superior post-manufacturing mandrel removal. High temperature tolerance makes it ideal for post-processing operations that require elevated temperatures

Acetal (POM) Benefits

Ideal for medium-sized shafts, cost-effective for large volume production and has a smooth surface for easy removal

Customization

Apply additives for durability, lower friction, and other optimizations. Acetal available in single and multilayer options, with multilayer improving dimensional stability, flexibility and roundness

Custom PTFE and Acetal Mandrels for Catheter Assembly

Applications

Manufacturing aid for braided or coil-reinforced shafts
Transport aid of ultra-thin wall delicate extrusions such as
catheter jackets or CRM lead components

Technical Specifications

Feature: OD Dimensional range single layer

PTFE: 0.5-5 mm (0.02-0.20”)
Acetal (POM): 1 -6 mm (0.04-0.24”)

Feature: OD Dimensional range multi layer

PTFE: N/A
Acetal (POM): 1 -6 mm (0.04-0.24”)

Feature: Tolerances

PTFE: +/- 0.025 mm (0.001”)
Acetal (POM): +/- 0.025- 0.051 mm (0.001-0.002”)

Feature: Tensile strength at break
: MPa
PTFE: 20-34
Acetal (POM): 40-70

Feature: Elongation at break
: %
PTFE: 200-400
Acetal (POM): 10-200

Feature: Flexural modulus
: MPa
PTFE: 275-620
Acetal (POM): 1400-3000

Feature: Hardness

PTFE: 55-65
Acetal (POM): 85

Feature: Density
: g/cm2
PTFE: 2.17
Acetal (POM): 1.3-1.4

Feature: Coefficient of friction
: °C
PTFE: 0.10
Acetal (POM): 0.35

Feature: Melting Point
: °C
PTFE: 330
Acetal (POM): 160-175

Feature: Min/Max Service Temp.
: %
PTFE: -240/+260
Acetal (POM): -40/+100

Feature: Water absorption

PTFE: <0.01
Acetal (POM): 0.2-1

Feature: ETO

PTFE: X
Acetal (POM): X

Feature: Steam

PTFE: X
Acetal (POM): X

Feature: Radiation

PTFE: --
Acetal (POM): X

Feature		PTFE	Acetal (POM)
OD Dimensional range single layer		0.5-5 mm (0.02-0.20”)	1 -6 mm (0.04-0.24”)
OD Dimensional range multi layer		N/A	1 -6 mm (0.04-0.24”)
Tolerances		+/- 0.025 mm (0.001”)	+/- 0.025- 0.051 mm (0.001-0.002”)
Tensile strength at break	MPa	20-34	40-70
Elongation at break	%	200-400	10-200
Flexural modulus	MPa	275-620	1400-3000
Hardness		55-65	85
Density	g/cm2	2.17	1.3-1.4
Coefficient of friction	°C	0.10	0.35
Melting Point	°C	330	160-175
Min/Max Service Temp.	%	-240/+260	-40/+100
Water absorption		<0.01	0.2-1
ETO		X	X
Steam		X	X
Radiation		--	X

Medical-Grade Certifications

ISO 14001

IATF 16949

ISO 13485

ISO 9001

Mandrel Product Sheet

Tight tolerances enable a consistent diameter and roundness for catheter shaft manufacturing.

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