Machine Shops

Large plastics inventory, quick response to RFQs, high quality materials, paperwork to meet certifications

Plastic Materials for Machine Shops

Machine shops depend on fast response times, large inventories, and high quality materials for fast and accurate machinability, and our plastic material experts work diligently to ensure those needs are met.

We assist with:

  • Quick turnaround on RFQs
  • Large inventory for quick delivery
  • Availability of hard-to-find materials
  • Quality materials for better machinability (straight, flat, low residual stress)
  • Material certifications with lot and batch traceability
  • Cut-to-size services to save you time
  • Inventory solutions to keep your operations running smoothly
  • Online catalog for self-service outside of regular business hours
Machine Shop CNC Machining of Clear Plastic Sheet - Learn More About Plastic Materials at Curbell Plastics
Thick Block of White Plastic for Machining -Quality Plastics and Large Inventory of Plastics for Machine Shops - Learn More at Curbell Plastics


For decades we’ve supplied quality plastics to machine shops for:

  • Bearings and bushings
  • Electrical insulators
  • Gears
  • Manifolds
  • Pulleys
  • Rollers
  • Sheaves
  • Slide Pads
  • Sprockets
  • Star wheels
  • Valve components
  • Wheels

Materials for machine and fabrication shops:


Large Plastic Sheets for Machine Shops - Learn More at Curbell Plastics
Machined Plastic Parts - Quality Plastics and Large Inventory of Plastic Materials for Machine Shops - Learn More at Curbell Plastics


Save Time and Keep Costs Down

We work with all sizes and types of machine shops to provide the materials, documentation, and services needed to meet requirements and keep jobs on schedule.

Quick Turn Around on RFQs

Our sales reps know you need to quote quickly and we work fast to help you get the job. If you need a quote outside normal business hours our online catalog may be the answer. You can select materials and calculate cut-to-size to meet your job requirements. 

Large Inventory of Straight and Flat Sheet, Rod, and Tube

Curbell Plastics has a broad inventory of sheet, rod, and tube to meet the needs of machine shops and fabricators. Our quick delivery options help shops with tight timetables keep on top of orders.

We stock quality materials that demonstrate low levels of residual stress to avoid warping during machining. CNC machines need straight and flat sheet, rod, and tube to feed correctly to keep scrap and labor rates low.

Reduce labor and time costs by having us cut your materials to size. With our in-house CNC panel saws and manual cutting equipment we are capable of quickly cutting materials to meet your requirements so you can begin work as soon as your order arrives. We work with you to maximize material yields to optimize costs and reduce waste.

Certifications and Traceability

For machine shops that make parts for critical service devices, Curbell can provide a certificate of conformance with each shipment certifying the materials meet the required engineering specifications. We also work with machine shops to provide additional documentation if required showing material manufacturer, date of manufacture, manufacturing lot, and properties test results.

Inventory Programs

For machine shops that need specific materials on a regular basis or that have repeat orders Curbell may be able to help with a custom inventory program such as blanket orders, JIT, or consignment. Contact a plastics expert today to learn more about these program options.

Fabrication and Machining Services

Take advantage of our plastic fabrication and machining services to save time and money on plastic parts. Utilizing in-house capabilities and partnering with fabrication specialists we provide customers with reliable fabrication solutions, machined parts and cut-to-size materials for any application.

Quote your project

Curbell Plastics works with machine shops to provide pricing and materials to meet your timeline.

When you need pricing, quality materials, and support to win the job and produce the part we are here for you.

Call 1-800-553-0335  |  Ask an expert  |  Explore our materials

Frequently Asked Questions
Can plastics be machined to tight dimensional tolerances similar to those that can be achieved with metals?

Plastic materials tend to have higher rates of thermal expansion and contraction compared with metals, which can make it challenging to hold tight dimensional tolerances when the ambient temperature changes. Also, some plastics such as nylon 6 and nylon 6/6 absorb moisture from the atmosphere, which can result in a slight increase in dimensions over time in humid environments.

Can Curbell provide lot and batch traceability for your materials?

Curbell can provide lot and batch traceability for our products as long as this is specified at the time of order.

Can Curbell supply plastic materials that are certified to ASTM specifications, SAE AMS specifications, or MIL specs?

Curbell can supply materials that meet ASTM, SAE AMS, and military specifications as long as this is asked for at the time of order. If properties testing reports are required, it is important to specify this when ordering. In some cases, additional laboratory testing fees may apply.

Is it safe to use standard coolants and cutting fluids when machining plastics?

Petroleum based cutting fluids may cause environmental stress cracking and/or degradation in certain plastics. Clean, dry compressed air is the most common method used to cool plastics during machining.

Do I need special tooling to machine plastic materials?

The tooling used for machining metal parts may not be suitable for all plastic materials. See our guidelines for machining plastics.