Electrical insulators and supports
Electrical assembly insulators and supports by grade.
Reinforced with fiber · Made-to-measure parts
CNC machining
of PBT GF30.
Rigidity for technical components. We manufacture PBT parts reinforced with 30 % glass fiber for supports, insulators, and connector bodies.
Get your quoteQuote in 24 h · Engineering review
- From
- 1 unit
- Delivery from
- 8 working days
- Material
- PBT Reinforced with fiber
01 / Why choose this material
Properties and uses
of PBT GF30.
PBT reinforced with 30 % glass fiber for components requiring rigidity and dimensional stability. Its behavior depends on the semi-finished product and fiber orientation.
PBT GF30 is polybutylene terephthalate reinforced with glass fiber. It combines low moisture absorption and dimensional stability. In a machined part, the semi-finished product and fiber orientation matter, not just the reinforcement percentage.
Learn about the CNC machining process ↗Properties of PBT GF30
Reference · semi-finished TECADUR PBT GF30
- Indicative density
- 1,46 g/cm³
- Modulus · ref. semi-finished
- 3,4 GPa
- Glass fiber
- 30 %
- Flexural modulus · ref.
- 3,5 GPa
- Presentation
- Semi-finished for CNC
Reference: semi-finished TECADUR PBT GF30. The grade, process, and fiber direction change properties; values from an injection-molded test specimen are not extrapolated.
Property reference: Ensinger · PBT GF30 semi-finished goods ↗
- Glass fiber reinforced
- Good stiffness
- Standard grade electrical insulator
- Low moisture absorption
- Good chemical resistance depending on the agent
PBT GF30 applications
Connector bodies
Connector bodies with specific housings and drilled holes.
Mechanical supports
Mechanical supports requiring dimensional stiffness.
Precision parts
Precision machined parts from semi-finished goods.
02 / A choice based on usage
Choose PBT GF30
based on your part.
These criteria help define the material, geometry, and working conditions before manufacturing.
01
30% glass fiber
The reinforcement improves stiffness compared to the non-fiber material. Machining direction and semi-finished structure influence this.
02
Supports and connectors
It is useful for geometries requiring stability and insulation. Define loads, stress, and environmental conditions.
03
Semi-finished data
Do not substitute its values with those from an injection test specimen. The manufacturing process of the raw material changes the properties.
The part's function is the starting point.
Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.
03 / Finishing also counts
Finishes and appearance
of PBT GF30.
Material and process define the surface. These are the key factors for specifying your part's appearance.
Machining finish
The part retains machining marks. Indicate adjustment surfaces and visible faces on the drawing.
Geometry and surfaces
For functional surfaces, define roughness and tolerances in the drawing. Feasibility is reviewed based on grade and geometry.
Your part requirements
Include the expected appearance and usage conditions in your request to confirm the quote.
04 / From design to quote
CNC machining
of PBT GF30.
Milling and turning allow manufacturing PBT GF30 parts from a block, plate, or bar. The tool removes material to obtain faces, cavities, drilled holes, and contours according to the design.
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Upload your file and request a quotePart tolerances
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
Calculate a tolerance ↗Quantity and cost per part
In CNC, setup costs are distributed across the batch units. The final reduction depends on machining time and material.
Quote in 24 hours
Parts from 8 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.
How much it costs to manufacture
The price of your part
in PBT GF30.
The price to machine PBT GF30 depends on the geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining.
Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.
Frequently asked questions
Before manufacturing
in PBT GF30.
Properties, applications, and manufacturing: answers to prepare your request.
What is PBT GF30 and what properties does it have?
Glass fiber reinforced PBT with 30 % fiber for components requiring stiffness and dimensional stability. Its behavior depends on the semi-finished product and fiber orientation. Reference: semi-finished TECADUR PBT GF30. The grade, process, and fiber direction change properties; values from an injection molded test specimen cannot be extrapolated.
What parts can be manufactured in PBT GF30?
We can manufacture electrical insulators and supports, connector housings, mechanical supports, and precision parts. CNC machining allows adapting the geometry to your 3D file. Define the loads, the environment, and the finish so we can review the application.
What does GF30 mean in PBT?
GF30 indicates a 30% reinforcement of glass fiber. This reinforcement changes the stiffness and other properties of the PBT. The results also depend on the grade, the semi-finished product, and the fiber orientation.
Can I use PBT injection molded data to design a machined part?
It is not advisable to extrapolate them directly. The fiber orientation and distribution may differ between an injection molded test specimen and a bar or plate for machining. Use the datasheet of the chosen semi-finished product for design calculations.
Is PBT with glass fiber an electrical insulator?
Standard PBT GF30 grades can be used as insulators, but the properties of the grade and the thickness must be confirmed. Humidity, temperature, and the electrical requirements of the assembly also influence the selection.
How much does it cost to machine a PBT GF30 part?
The price to machine PBT GF30 depends on the geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining. Upload the 3D file to the Proto&Go! platform to receive a quote with cost and lead time.
What tolerances can I request for a PBT GF30 part?
For dimensions without a specific tolerance, Proto&Go! applies ISO 2768-m. With a drawing, equivalent tolerances to IT11 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
What file do I need to manufacture a PBT GF30 part?
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Compare before choosing
Other options for your part.
Your next part
Shape it
in PBT GF30.
Upload the 3D file. We review feasibility and send you the quote.