Acetal Plastic Machining

Trusted UK-based Acetal Plastic Machined Parts Manufacturer

High quality precision machined components - acetal milling & turning
Specialising in intricate, tight tolerance work
Extensive experience and high customer satisfaction

Penta Precision supplies highly accurate Acetal plastic machined parts throughout the UK. Customers turn to us when they have had quality and delivery issues with their existing suppliers and need a reliable precision machining partner.

We communicate well with customers, we take care with the projects placed with us and we are consistent in our service delivery. See our Proven Process page to find out more about our winning formula.

Working with Penta will allow you to:

Trust in a quality finished product
Meet project and buying deadlines
Spend less time chasing suppliers
Talk to someone about design advice
Focus on the vital parts of your job role

We build close working relationships with customers all over the UK due to the consistency, reliability and quality of our machining service.

Are you looking for Acetal plastic material information? See our Acetal Guide

"Highly recommended and customer orientated company. Professional team which meet requests in a timely manner, supportive and cooperative." Nadiya - Purchasing Officer

Acetal Machined Parts - Acetal Milling & Turning

Penta Precision provides the following Acetal machining services:

CNC milling – prototypes & large batch runs
CNC turning – prototypes & large batch runs
Insert installation
Part marking
Manual milling
Manual turning
Machining design advice
Machining drawing service

Reasons to Choose Penta:

ISO 9001:2015 quality assurance
Consistent high quality machined parts
Reliable delivery dates - our track record speaks volumes
Exceptional customer service and communication
Machining design advice
Extensive experience in our field

We are regularly machining Acetal for customers all over the UK. Our customers depend on our machining expertise as well as our outstanding delivery performance, to machine the highest quality parts. If you'd like to discuss how we can help you with your Acetal machining requirements, here's a list of ways to get in touch with us. Or if you would like more information on the material, please see our guide below.

5 x 500	+0.20/+0.70
6 x 500	+0.20/+0.70
8 x 500	+0.20/+1.10
10 x 500/620/1000	+0.20/+1.10
12 x 500/1000	+0.30/+1.50
16 x 500/1000	+0.30/+1.50
20 x 500/620/1000	+0.30/+1.50
25 x 500/620/1000	+0.30/+1.50
30 x 500/620/1000	+0.50/+5.00
35 x 620/1000	+0.50/+5.00
40 x 500/620/1000	+0.50/+5.00
50 x 500/620/1000	+0.50/+5.00
60 x 500/620/1000	+0.50/+3.50
70 x 500	+0.50/+3.50
80 x 500/1000	+0.50/+5.00
100 x 500/1000	+0.50/+5.00
120 x 620	+0.50/+6.00
150 x 620	+0.50/+7.00
12.7 x 610	+0.00/+0.64
25.4 x 610	+0.00/+0.64
38.1 x 610	+0.00/+0.64
44.4 x 610	+0.00/+0.64
50.8 x 610	+0.00/+0.64

5 x 500

+0.20/+0.70

6 x 500

+0.20/+0.70

8 x 500

+0.20/+1.10

10 x 500/620/1000

+0.20/+1.10

12 x 500/1000

+0.30/+1.50

16 x 500/1000

+0.30/+1.50

20 x 500/620/1000

+0.30/+1.50

25 x 500/620/1000

+0.30/+1.50

30 x 500/620/1000

+0.50/+5.00

35 x 620/1000

+0.50/+5.00

40 x 500/620/1000

+0.50/+5.00

50 x 500/620/1000

+0.50/+5.00

60 x 500/620/1000

+0.50/+3.50

70 x 500

+0.50/+3.50

80 x 500/1000

+0.50/+5.00

100 x 500/1000

+0.50/+5.00

120 x 620

+0.50/+6.00

150 x 620

+0.50/+7.00

12.7 x 610

+0.00/+0.64

25.4 x 610

+0.00/+0.64

38.1 x 610

+0.00/+0.64

44.4 x 610

+0.00/+0.64

50.8 x 610

+0.00/+0.64

Inside Diameter (mm)	Outside Diameter (mm)	Tolerance Outside (mm)	Tolerance Inside (mm)
10	20	+0.40/+1.10	-1.10/-0.4
15	25	+0.40/+1.10	-1.10/-0.4
15	30	+0.40/+1.10	-1.10/-0.4
18	25	+0.40/+1.10	-1.10/-0.4
20	30	+0.40/+1.10	-1.10/-0.4
15	32	+0.60/+2.00	-2.00/0.60
20	36	+0.60/+2.00	-2.00/0.60
20	50	+0.60/+2.00	-2.00/0.60
25	36	+0.60/+2.00	-2.00/0.60
25	40	+0.60/+2.00	-2.00/0.60
25	45	+0.60/+2.00	-2.00/0.60
30	40	+0.60/+2.00	-2.00/0.60
30	50	+0.60/+2.00	-2.00/0.60
36	45	+0.60/+2.00	-2.00/0.60
40	50	+0.60/+2.00	-2.00/0.60
30	56	+0.80/+2.50	-2.80/0.80
30	60	+0.80/+2.50	-2.80/0.80
40	56	+0.80/+2.50	-2.80/0.80
40	60	+0.80/+2.50	-2.80/0.80
36	70	+0.80/3.00	-3.00/0.80
40	80	+0.80/3.00	-3.00/0.80
50	70	+0.80/3.00	-3.00/0.80
50	75	+0.80/3.00	-3.00/0.80
50	80	+0.80/3.00	-3.00/0.80
60	80	+0.80/3.00	-3.00/0.80
50	90	+1.20/+3.60	-5.00/-1.60
50	100	+1.20/+3.60	-5.00/-1.60
50	110	+1.20/+3.60	-5.00/-1.60
70	90	+1.20/+3.60	-5.00/-1.60
70	100	+1.20/+3.60	-5.00/-1.60
80	100	+1.20/+3.60	-5.00/-1.60
50	125	+1.50/+4.50	-6.50/-2.00
80	125	+1.50/+4.50	-6.50/-2.00
100	125	+1.50/+4.50	-6.50/-2.00
100	150	+1.50/+4.50	-6.50/-2.00
125	150	+1.50/+4.50	-6.50/-2.00
100	165	+1.80/+5.40	-7.50/-2.20
125	180	+1.80/+5.40	-7.50/-2.20
150	180	+1.80/+5.40	-7.50/-2.20
100	200	+2.00/+6.00	-8.50/-2.50
150	200	+2.00/+6.00	-8.50/-2.50
200	230	+3.00/+9.00	-12.00/-3.00
200	250	+3.00/+9.00	-12.00/-3.00
200	300	+3.00/+10.00	-13.00/-3.50

Inside Diameter (mm)

Outside Diameter (mm)

Tolerance Outside (mm)

Tolerance Inside (mm)

+0.40/+1.10

-1.10/-0.4

+0.40/+1.10

-1.10/-0.4

+0.40/+1.10

-1.10/-0.4

+0.40/+1.10

-1.10/-0.4

+0.40/+1.10

-1.10/-0.4

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.60/+2.00

-2.00/0.60

+0.80/+2.50

-2.80/0.80

+0.80/+2.50

-2.80/0.80

+0.80/+2.50

-2.80/0.80

+0.80/+2.50

-2.80/0.80

+0.80/3.00

-3.00/0.80

+0.80/3.00

-3.00/0.80

+0.80/3.00

-3.00/0.80

+0.80/3.00

-3.00/0.80

+0.80/3.00

-3.00/0.80

+0.80/3.00

-3.00/0.80

+1.20/+3.60

-5.00/-1.60

100

+1.20/+3.60

-5.00/-1.60

110

+1.20/+3.60

-5.00/-1.60

+1.20/+3.60

-5.00/-1.60

100

+1.20/+3.60

-5.00/-1.60

100

+1.20/+3.60

-5.00/-1.60

125

+1.50/+4.50

-6.50/-2.00

125

+1.50/+4.50

-6.50/-2.00

100

125

+1.50/+4.50

-6.50/-2.00

100

150

+1.50/+4.50

-6.50/-2.00

125

150

+1.50/+4.50

-6.50/-2.00

100

165

+1.80/+5.40

-7.50/-2.20

125

180

+1.80/+5.40

-7.50/-2.20

150

180

+1.80/+5.40

-7.50/-2.20

100

200

+2.00/+6.00

-8.50/-2.50

150

200

+2.00/+6.00

-8.50/-2.50

200

230

+3.00/+9.00

-12.00/-3.00

200

250

+3.00/+9.00

-12.00/-3.00

200

300

+3.00/+10.00

-13.00/-3.50

Mechanical Properties	Type of Acetal	Value	Parameter	Norm	Comments
Modulus of Elasticity (Tensile Strength) (MPa)	Homopolyer	3400	1mm/min	DIN EN ISO 527-2	For tensile test: specimen type 1b
Copolymer	2800
Tensile Strength (MPa)	Homopolyer	79	50mm/min	DIN EN ISO 527-2
Copolymer	67
Tensile Strength at Yield (MPa)	Homopolyer	79	50mm/min	DIN EN ISO 527-2
Copolymer	67
Elongation at Yield (%)	Homopolyer	37	50mm/min	DIN EN ISO 527-2
Copolymer	9
Elongation at Break (%)	Homopolyer	45	50mm/min	DIN EN ISO 527-2
Copolymer	32
Flexural Strength (MPa)	Homopolyer	106	2mm/min	DIN EN ISO 178	For flexural test:supoort span 64mm, norm specimen
Copolymer	91
Modulus of Elasticity (Flexural Test)	Homopolyer	3600	-	DIN EN ISO 178
Copolymer	2600
Compression Strength (MPa)	Homopolyer	19/33	1% / 2%, 5mm/min, 10N	EN ISO 604	Specimen 10x10x10mm
Copolymer	20/35
Compression Modulus (MPa)	Homopolyer	2700	5mm/min, 10N	EN ISO 604	Specimen 10x10x50mm, modulus range between 0.5 and 1% compression
Copolymer	2300
Impact Strength (Charpy) (KJ/m^2)	Homopolyer	n.b.	Max 7,5J	DIN EN ISO 179-1EU	For charpy test: support span 64mm, norm specimen. nb = not broken
Copolymer	n.b.
Notched Impact Strength (Charpy) (KJ/m^2)	Homopolyer	15	Max 7,5J	DIN EN ISO 179-1eA
Copolymer	8
Ball Indentation Hardness (MPa)	Homopolyer	185	-	ISO 2039-1
Copolymer	165

Mechanical Properties

Type of Acetal

Value

Parameter

Norm

Comments

Modulus of Elasticity (Tensile Strength) (MPa)

Homopolyer

3400

1mm/min

DIN EN ISO
527-2

For tensile test: specimen type 1b

Copolymer

2800

Tensile Strength (MPa)

Homopolyer

50mm/min

DIN EN ISO 527-2

Copolymer

Tensile Strength at Yield (MPa)

Homopolyer

50mm/min

DIN EN ISO 527-2

Copolymer

Elongation at Yield (%)

Homopolyer

50mm/min

DIN EN ISO 527-2

Copolymer

Elongation at Break (%)

Homopolyer

50mm/min

DIN EN ISO 527-2

Copolymer

Flexural Strength (MPa)

Homopolyer

106

2mm/min

DIN EN ISO 178

For flexural test:supoort span 64mm, norm specimen

Copolymer

Modulus of Elasticity (Flexural Test)

Homopolyer

3600

DIN EN ISO 178

Copolymer

2600

Compression Strength (MPa)

Homopolyer

19/33

1% / 2%, 5mm/min, 10N

EN ISO 604

Specimen 10x10x10mm

Copolymer

20/35

Compression Modulus (MPa)

Homopolyer

2700

5mm/min, 10N

EN ISO 604

Specimen 10x10x50mm, modulus range between 0.5 and 1% compression

Copolymer

2300

Impact Strength (Charpy) (KJ/m^2)

Homopolyer

n.b.

Max 7,5J

DIN EN ISO 179-1EU

For charpy test: support span 64mm, norm specimen. nb = not broken

Copolymer

n.b.

Notched Impact Strength (Charpy) (KJ/m^2)

Homopolyer

Max 7,5J

DIN EN ISO 179-1eA

Copolymer

Ball Indentation Hardness (MPa)

Homopolyer

185

ISO 2039-1

Copolymer

165

Thermal Properties	Type of Acetal	Value	Parameter	Norm	Comments
Glass Transition Temperature (°C)	Homopolyer	-60	-	DIN 53765	Found in public sources
Copolymer	-60
Melting Temperature (°C)	Homopolyer	182	-	DIN 53765
Copolymer	166
Service Temperature (Short Term) (°C)	Homopolyer	150	-	-	Found in public sources. Individual testing regarding application conditions is mandatory
Copolymer	140
Service Temperature (Long Term) (°C)	Homopolyer	110	-	-
Copolymer	100
Thermal Expansion (CLTE) (10-5 K-1)	Homopolyer	12	23-60°C, long	DIN EN ISO 11359-1;2
Copolymer	13
Thermal Expansion (CLTE) (10-5 K-1)	Homopolyer	13	23-100°C, long	DIN EN ISO 11359-1;2
Copolymer	14
Specific Heat (J/g*K)	Homopolyer	1.3	-	ISO 22007-4:2008
Copolymer	1.4
Thermal Conductivity W/(K*m)	Homopolyer	0.43	-	ISO 22007-4:2008
Copolymer	0.39

Thermal Properties

Type of Acetal

Value

Parameter

Norm

Comments

Glass Transition Temperature (°C)

Homopolyer

-60

DIN 53765

Found in public sources

Copolymer

-60

Melting Temperature (°C)

Homopolyer

182

DIN 53765

Copolymer

166

Service Temperature (Short Term) (°C)

Homopolyer

150

Found in public sources. Individual testing regarding application conditions is mandatory

Copolymer

140

Service Temperature (Long Term) (°C)

Homopolyer

110

Copolymer

100

Thermal Expansion (CLTE) (10-5 K-1)

Homopolyer

23-60°C, long

DIN EN ISO 11359-1;2

Copolymer

Thermal Expansion (CLTE) (10-5 K-1)

Homopolyer

23-100°C, long

DIN EN ISO 11359-1;2

Copolymer

Specific Heat (J/g*K)

Homopolyer

1.3

ISO 22007-4:2008

Copolymer

1.4

Thermal Conductivity W/(K*m)

Homopolyer

0.43

ISO 22007-4:2008

Copolymer

0.39

Electrical Properties	Type of Acetal	Value	Parameter	Norm
Specific Surface Resistance (Ω)	Homopolyer	10₁₄	-	DIN IEC 60093
Copolymer	10₁₄

Electrical Properties

Type of Acetal

Value

Parameter

Norm

Specific Surface Resistance (Ω)

Homopolyer

10₁₄

DIN IEC 60093

Copolymer

10₁₄

Other Properties	Type of Acetal	Value	Parameter	Norm	Comments
Water Absorption (%)	Homopolyer	0.05/0.1	24h/96h (23°C)	DIN EN ISO 62	Øca, 50mm, h=13mm
Copolymer	0.05/0.1
Flammability	Homopolyer	HB	Corresponding to	DIN IEC 60695-11-10	Corresponding mean no listing at UL (yellow card). the information might be taken from resin, stock shape or estimation. Individual testing regarding application conditions is mandatory.
Copolymer	HB

Other Properties

Type of Acetal

Value

Parameter

Norm

Comments

Water Absorption (%)

Homopolyer

0.05/0.1

24h/96h (23°C)

DIN EN ISO 62

Øca, 50mm, h=13mm

Copolymer

0.05/0.1

Flammability

Homopolyer

Corresponding to

DIN IEC 60695-11-10

Corresponding mean no listing at UL (yellow card). the information might be taken from resin, stock shape or estimation. Individual testing regarding application conditions is mandatory.

Copolymer

Acetal Plastic Machining

Trusted UK-based Acetal Plastic Machined Parts Manufacturer

Working with Penta will allow you to:

Acetal Machined Parts - Acetal Milling & Turning

Reasons to Choose Penta:

What is Acetal?

Main Attributes of Acetal:

Acetal Copolymer:

Acetal Homopolymer:

Acetal Components, Applications & Industries

Typical Components & Applications:

Industry Examples:

Copolymer

Homopolymers

CNC Machining Acetal - Notes for Designers

Acetal Machinability

Similar or obsolete designation and trade names

Acetal UK Stock Sizes

Example Acetal Stock Sizes

Acetal Plate*

Acetal Tube

Acetal Technical Properties

Acetal Mechanical Properties

Acetal Thermal Properties

Acetal Electrical Properties

Other Acetal Properties

Further Reading & Resources

Want to know more about Penta?