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Rubber CNC Machining Service

Are you looking for custom rubber parts that fit just right? Our precision CNC machining service can make exactly what you need! We cut, shape, and finish rubber parts with amazing accuracy. Read on to learn how we can help with your rubber part needs.

CNC Machining Parts

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Supports uploading of the following file formats: .STEP .STP .SLDPRT .STL .IPT .3MF .3DXML .PRT .SAT .DXF .X_T .X_B .JT .CATPART

23 Years

Istar Machining's years in the industry

300,000 square feet

The size of Istar Machining's factory

300 CNC machines

Our CNC equipment count

1000 skilled workers

Istar's number of skilled machinists/operators

What Is Rubber CNC Machining?

Rubber CNC machining uses computer-controlled tools to cut and shape rubber materials. This gives you parts that are:

  • Super accurate(within 0.005 inches)
  • Custom-madeto your exact needs
  • Fast to producewithout making expensive molds
  • Perfect for small batchesor one-of-a-kind parts

At Istar Machining, we use multi-axis CNC technology to create complex rubber parts that simply wouldn’t be possible with basic cutting tools.

Materials We Work With

We can machine many different types of rubber:

Rubber Type

Properties

Common Uses

Natural Rubber

Very stretchy, good bounce-back

Engine mounts, vibration dampers

Silicone (LSR)

Heat-resistant, food-safe

Medical parts, food equipment seals

EPDM

Weather-resistant, stands up to sunlight

Outdoor seals, HVAC components

Nitrile (NBR)

Oil-resistant, tough

Automotive gaskets, oil system seals

Viton® (FKM)

Chemical-resistant, handles extreme heat

Engine seals, chemical handling parts

FDA-grade rubber

Meets food safety rules

Food processing equipment parts

How We Make Your Rubber Parts

Our CNC rubber cutting process follows these steps:

Material Selection

We help you pick the right rubber for your needs

Computer Design

We create or use your 3D design file

Toolpath Planning

We plan the best way to cut your part

CNC Machining

Our machines precisely cut the rubber

Finishing

We smooth edges and check the part

Quality Testing

We make sure everything meets your needs

What Makes Our Rubber Parts Special

Precision You Can Trust

Our CNC machines can make rubber parts within ±0.005″ of your specifications. That’s about the thickness of a human hair! This makes our parts perfect for:

  • Tight-fitting sealsthat don’t leak
  • Medical componentsthat must be exact
  • Complex shapeswith special features

Materials for Every Need

We work with rubber in many hardness levels (from soft 20A to firm 90A Shore hardness). This means we can make:

  • Soft, squishy partsthat absorb vibration
  • Medium-firm sealsthat stand up to pressure
  • Harder rubber componentsthat resist wear

Size Flexibility

We can make rubber parts up to 24″ x 12″ x 8″ in size. Whether you need tiny O-rings or large industrial seals, we’ve got you covered!

Where Our Rubber Parts Are Used

Our CNC milling rubber service makes parts for many industries:

  • Engine mounts that reduce vibration
  • Custom gaskets for engines and fuel systems
  • Oil-resistant seals for transmissions
  • Bushings that dampen noise
  • FDA-approved parts for medical devices
  • Seals for medical equipment
  • Soft grips for tools and instruments
  • Waterproof covers for electronic devices
  • Conveyor belt parts that last longer
  • Custom seals for machinery
  • Vibration dampers for factory equipment
  • Chemical-resistant components
  • Comfortable grips for tools and devices
  • Waterproof seals for outdoor products
  • Non-slip pads and feet for electronics
  • Custom gaskets for household appliances

Why Choose CNC Over Other Methods?

There are several ways to make rubber parts. Here’s why CNC machining is often the best choice:

Method

Advantages of CNC

Injection Molding

No expensive molds needed – save money on small runs

Die Cutting

Can create complex 3D shapes, not just flat parts

Hand Cutting

Much more precise and repeatable

3D Printing

Better material properties and durability

Case Study: Solving a Tough Problem

A medical device company needed special silicone seals that could stand up to sterilization. The parts had complex shapes with tiny grooves. Traditional methods couldn’t make these parts with enough precision.

Our solution: Using our 5-axis machining technology, we created perfect silicone seals that:

  • Kept fluids from leaking
  • Survived hundreds of cleaning cycles
  • Fit perfectly every time
  • Met all FDA requirements

The result? The company’s devices worked better and lasted longer!

Precision-machined silicone seals for medical devices
Advanced rubber CNC machining technology with diverse finished components

Our Technical Capabilities

Here’s what our rubber CNC machining can do:

  • Materials: 20+ types of rubber with Shore hardness from 20A to 90A
  • Maximum Part Size: 24″ x 12″ x 8″
  • Tolerances: ±0.005″ standard, ±0.002″ for high-precision needs
  • Surface Finishes: Smooth, textured, or with special coatings
  • Lead Times: 3-5 days for prototypes, 2-4 weeks for production runs
  • Certifications: ISO 9001, ISO 13485, RoHS compliant materials available 

Why Choose Istar Machining?

We’re not just any machine shop. We’re experts in rubber CNC machining with:

  • Years of experienceworking with all types of rubber
  • Advanced machinesthat can create complex shapes
  • Quality controlthat ensures perfect parts every time
  • Fast turnaroundfor when you need parts quickly
  • Competitive pricingthat fits your budget
Precision CNC machine cutting complex rubber component
Quality inspection of precision-machined rubber parts
Efficient rubber machining production facility
Customized rubber parts consultation with engineering expertise

Ready to Start Your Project?

Getting custom rubber parts is easy with Istar Machining:

  1. Send us your design– CAD files work best, but we can work from sketches too
  2. Get a quick quote– Usually within 24 hours
  3. Approve production– We’ll make sure everything is perfect
  4. Receive your parts– On time and ready to use

Don’t settle for rubber parts that almost fit. Get exactly what you need with our custom CNC machining services!

CNC Prototype Machining
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Click or drag files to this area to upload.You can upload up to 5 files.
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Please enable JavaScript in your browser to complete this form.
Click or drag files to this area to upload.You can upload up to 5 files.
Supports uploading of the following file formats: .step, .stp, .iges, .igs, .x_t, .x_b, .sat, .sldprt, .sldasm, .ipt, .iam, .prt, .asm, .pdf, .dwg, .dxf