Automobile
Grish has been providing polishing machines and slurries for crankshaft polishing, camshaft polishing, gear shaft polishing, and stabilizer shaft polishing.
OUR STRENGTHS
What Grish Can Do
High Removal Rate
With our classified and fine abrasives, Grish polishing tape has higer removal rate to help you improve work efficiency.
Achieve your Ideal Ra Value
Our professional automobile experts are with more than 20 years experience. No matter what Ra value you need, We’re honored to help you get the ideal surface that you need.
Uniform Polish Result
With our professional manufacturing process and high strict QC standard, the products quality is stable between different batches, and you can be assure of our consistency.
SCHEMATIC DIAGRAM
How to Polish Crankshaft & Camshaft ?
Grish offers one-stop crankshaft polishing solutions for your polishing requirements. We mainly manufacture polishing & grinding consumables and machines. We will share you the application of our Microfinishing Film Roll in Auto Field.
Automobile
Polishing Process
Automotive engine crankshaft polishing/camshaft polishing is generally finished by grinding machines polishing machines. The roughness of the grinding machine is usually Ra < 0.4 after polishing with CBN grinding wheels, then according to your polishing requirement you can choose suitable grit abrasives on the polishing machine for further polishing. If Ra < 0.2 is required, your can choose our EW30 to get your idea finish. If Ra < 0.15 is required, you can use our EW30 and EW15 to achieve the final finish.
The parameters for each polishing step are listed below:
| Project | Parameter Range | Note |
| Polishing Jig Hardness | ≥90 | |
| Polishing Pressure | 3~5bar | |
| Shaft Rotation Rate | 50~100rpm | Cam speed 50~60rpm |
| Time | 10~20s | |
| Oscillation Range | 1~1.5mm | |
| Polishing Removal | 2~5μm | |
| Consumed Abrasives | 8~11mm |
Good news is that we have EW series microfinishing film roll can replace the Film Backing microfinishing roll in the market with more advantages, below is the detail:
| Film Backing | Grish | Data(after Polishing) | |
| Electrostatic Series | Ra(um) | RZ(um) | |
| 12/9 | 0.06-0.13 | ||
| 15 | 0.06-0.15 | ||
| 20 | 0.08-0.2 | <1.6 | |
| 30 | 0.1-0.25 | <2 | |
| 40 | 0.15-0.3 | 0.8-3.2 | |
| 50 | 0.2-0.3 | ||
EA series microfinishing film roll detail:
| Cloth Backing | Grish | Data(after Polishing) |
| EA Series | Ra(um) | |
| EA-P1200 | <0.2 | |
| EA-P800 | 0.15-0.25 | |
| EA-P600 | <0.3 | |
| EA-P400 | <0.32 |
You will get the perfect finishes for your Crankshaft and camshaft surface with above steps, please contact Grish experts when you have any doubt for the crankshaft polishing and camshaft polishing procedures.
| Project | Parameter Range | Note |
| Polishing Jig Hardness | ≥90 | |
| Polishing Pressure | 3~5bar | |
| Shaft Rotation Rate | 50~100rpm | Cam speed 50~60rpm |
| Time | 10~20s | |
| Oscillation Range | 1~1.5mm | |
| Polishing Removal | 2~5μm | |
| Consumed Abrasives | 8~11mm |
| Film Backing | Grish | Data(after Polishing) | |
| EW Series | Ra(um) | RZ(um) | |
| EW12/EW9 | 0.06-0.13 | ||
| EW15 | 0.06-0.15 | ||
| EW20 | 0.08-0.2 | <1.6 | |
| EW30 | 0.1-0.25 | <2 | |
| EW40 | 0.15-0.3 | 0.8-3.2 | |
| EW50 | 0.2-0.3 | ||
| Cloth Backing | Grish | Data(after Polishing) |
| EA Series | Ra(um) | |
| EA-P1200 | <0.2 | |
| EA-P800 | 0.15-0.25 | |
| EA-P600 | <0.3 | |
| EA-P400 | <0.32 |
Explore More In The Video
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Polishing Equipment Video