Cylindrical Grinding Service

Q: Q: How smooth can you make my parts?

A: We can make your parts as smooth as 8-16 μin Ra, which is almost like a mirror!

Q: Q: What's the largest part you can grind?

A: We can handle parts up to 24 inches in diameter and 60 inches long.

Q: Q: How fast can I get my parts?

A: Rush jobs can be done in 24 hours, and regular jobs take 1-5 days.

Q: Q: Do you work with small orders?

A: Yes! We can make just one part or thousands of parts.

Are you looking for a way to make your metal parts super smooth and exact? Our cylindrical grinding services can help! We take rough metal parts and make them smooth and perfect for your projects. Let’s learn about this cool process and how it can help your business.

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20+ Years

Istar Machining's years in the industry

300,000 square feet

The size of Istar Machining's factory

856 CNC machines

Our CNC equipment count

2000+ skilled workers

Istar's number of skilled machinists/operators

What Is Cylindrical Grinding?

Cylindrical grinding is a special way to make metal parts very smooth. We use special grinding wheels that spin very fast to remove tiny bits of metal from your parts. This makes the parts super smooth and exactly the size you need.

Think about it like sandpaper for metal, but much more exact!

Why Your Parts Need Cylindrical Grinding

Cylindrical grinding helps when your parts need to:

Be very smooth(like glass)
Have exact sizes(no bigger or smaller than what you want)
Work well with other parts
Last a long time without wearing out

This is super important for things like car parts, airplane parts, and medical tools that need to work perfectly every time.

Types of Cylindrical Grinding We Offer

We have different ways to grind your parts depending on what you need:

Grinding Type	What It Does	Where It’s Used
OD/ID Grinding	Makes the outside and inside of round parts smooth	Shafts, hydraulic rods, engine parts
Surface Grinding	Makes flat surfaces super smooth	Medical devices, precision tools
CNC Grinding	Uses computers to make very exact parts	Aerospace parts, complex shapes
Centerless Grinding	For parts that need to be perfectly round	Pins, rollers, needles

Learn more about our CNC grinding capabilities for computer-controlled precision!

Top Materials for Cylindrical Grinding

Here’s a simple breakdown of the main materials we work with:

Hardened Steels

Carbides

Aluminum/SiC Composites

Nickel Superalloys (Inconel)

Titanium Alloys

Hardened Steels

Carbides

Aluminum/SiC Composites

Nickel Superalloys (Inconel)

Titanium Alloys

How Different Materials Perform

Let’s compare how these materials perform in cylindrical grinding:

Material	MRR (mm³/s)	Surface Roughness (Ra)	Tool Life (Hours)
Hardened Steel	12-15	0.3-0.5 µm	50-70
Carbides	3-5	0.1-0.2 µm	80-100
Al/SiC	8-10	0.6-0.8 µm	30-40
Superalloys	2-3	0.4-0.6 µm	20-30
Titanium	4-6	0.2-0.4 µm	40-60

MRR stands for “Material Removal Rate” – how fast we can grind the material.

CNC Products Produced by Istar Machining

How Exact Can We Make Your Parts?

When we say “exact,” we mean REALLY exact! Our cylindrical grinding services can make your parts within ±0.0001 inches of your requirements. That’s thinner than a human hair!

This is perfect for:

Aerospace parts: Where even tiny mistakes can cause big problems
Medical devices: That need to be perfect to help patients
Automotive parts: That need to work smoothly in engines
Precision tooling: For making other exact parts

Industries We Help

Our cylindrical grinding services help many different industries:

Aerospace

We make parts for airplanes and rockets that need to be perfect. These parts help planes fly safely!

Learn More

Automotive

We make engine parts, transmission shafts, and other car parts that need to work smoothly.

Learn More

Medical

We make surgical tools and implants that doctors use to help people.

Learn More

Energy

We make parts for power plants and oil rigs that need to work in tough conditions.

Learn More

The Cylindrical Grinding Process

Here’s how we make your parts perfect:

Setup

Precisely configuring the grinder for your part’s material and tolerances (e.g., ±0.005mm). Select optimal wheel (Al₂O₃/CBN), dress it for concentricity. Calculate and set crucial parameters: wheel/work speed (SFM/RPM), feed rate, and cut depth. Careful setup ensures accuracy from the start.

Mounting

Securely fixture workpiece between centers or in high-precision chucks (< 0.002mm TIR) for optimal concentricity. Critical alignment verification and appropriate clamping force prevent vibration and distortion. Ensures stability for achieving tight geometric tolerances (cylindricity, roundness).

Grinding

Material removal using a rotating wheel against the workpiece with controlled feeds. Copious high-pressure coolant prevents thermal damage and aids surface finish (e.g., Ra 0.2µm). A spark-out pass refines final size and finish. Precision grinding achieves exact dimensions.

Measuring

Crucial in-process and final checks using calibrated instruments (micrometers, CMMs, profilometers). Verify dimensions to micron precision (e.g., ±0.002mm), geometric tolerances (roundness, cylindricity), and surface finish (Ra). Ensures parts meet exact drawing specifications.

Finishing

Post-grinding steps include thorough cleaning to remove residue and coolant. Optional deburring/chamfering. Application of rust preventative to protect precision surfaces. Careful handling and appropriate packaging ensure parts arrive undamaged and meet final requirements.

Why Our Cylindrical Grinding Is Better

Not all grinding services are the same. Here’s what makes ours special:

Better Finishes

Our parts are smoother than most others (8-16 μin Ra).

More Exact

We can make parts within ±0.0001" of your specs.

Faster Delivery

Get your parts in 1-5 days, not weeks!

Material Experts

We know how to work with hard-to-grind materials.

Full Support

We help with material selection, design advice, and more.

Cost-Saving Benefits

Choosing our cylindrical grinding services can save you money:

Less Waste: We get your parts right the first time.
Longer-Lasting Parts: Smooth parts last longer in your machines.
Fewer Repairs: Parts that fit perfectly don’t break as often.
Faster Assembly: Perfect parts go together faster.

Typical Cylindrical Grinding Uses

Here are some common uses for our cylindrical grinding:

Part Type	Industry	Why Grinding Helps
Shafts	Automotive	Makes them turn smoothly in engines
Hydraulic Rods	Energy	Prevents leaks and makes them last longer
Bearing Races	Manufacturing	Makes bearings roll smoothly
Surgical Tools	Medical	Makes tools safe and exact for doctors
Turbine Components	Aerospace	Helps parts handle high speeds and heat

Special Extras We Offer

Besides grinding, we can also help with:

Heat Treatment: Makes your parts stronger
Coatings: Adds special surfaces to your parts
Polishing: Makes your parts even smoother
Testing: Makes sure your parts will work right

How to Order Our Cylindrical Grinding Services

Getting your parts made is easy:

Step 1

Send design

Send us your drawings (PDF, STEP, or IGES files)

Step 2

Get a Quick Quote

We'll tell you the price and timeline within 1 hour

Step 3

We Make Your Parts

Our skilled machinists program the CNC machines

Step 4

Quality Check

Every part is inspected before shipping

Step 5

Safe Delivery

Your parts arrive on time, ready to use

Get Started Today!

Ready to make your parts perfect? Let our cylindrical grinding experts help you!

Don’t settle for rough or imperfect parts. Choose our cylindrical grinding services and see the difference that perfect parts can make for your business!