Metal Finishing on Stainless Steel Sanitary Systems



Stainless Steel Finishing
Typical Stainless Steel Mechanical Finishes

Mill Finish A Mill Finish
The basic finish that comes on most stainless steel flat products. Its the starting point of more advanced finishes, with an Ra of more than 100 microinches.
2B Finish
This common stainless steel finish is often used in chemical and food applications, not as stringent as sanitary applications. The typical Ra range of 40 to 15 microinches.
No. 3 Finish
120 grit abrasive paper is typically used for the final step in producing a No. 3 finish. Its Ra is in the range of 36 – 58 microinches.
No. 4 Finish
Often used in more advanced, sanitary applications, a 150 grit abrasive is used. The Ra range is 29 – 40 microinches.
No. 4 Dairy / 4A Finish
For many advanced food processing applications, the number 4 Dairy(or 4A) finish is required. It uses a 180 grit and has a Ra range of 18 – 31 microinches.Equipment Information
Straight Liner
- (1) Pal Industries 96.00in table, 6.00in wide belt
- (1) Pal Industries 120.00in table, 6.00in wide belt
- (1) Pal Industries 144.00in table, 6.00in wide belt
Buffing Lathe
- (1) Arrow 10hp, 2:spindle
Tumbler
- (2) Time Saver 20.00in x 16.00in opening
Glass Bead Blast
- (1) Empire Abrasive booth, 36.00in x48.00in
- (1) Enviro Systems booth, 168.00in W x 240.00in L x 240.00in H
Deburring
- (1) Edge deburring 7 gauge capacity
Air Compressors
- (2) Quincy 50hp screw-type w/dryer
You guys do spectacular work such perfectly polished seams! Thank you for getting it overnight-ed to me. Anderson Dahlen is first on my list to get the special things done from here on out. Tim, Wonder Works Unlimited
Thank you to you and your team who assisted me during my visit. Both the customer and I were hugely impressed with everything from start to finish. The actual FATs were one of the smoothest that I have experienced in 20 years. I look forward to working with you in the future. Martin Kelly, Thermo Fisher
We want to let you know how much Brian and I appreciate you, Greg, Nathan, and the rest of the Anderson Dahlen team for helping us to complete the test assembly and collect the test data on time during our visit. Your help truly exceeded our expectations. We thank you for showing us your manufacturing plants. Vincent Lee, Plasma-Therm NES
Thank you to Gary and the fabricators who helped us remove the scratch and refinishing our aluminum part. You saved us a ton of time and kept us on track for an on time delivery to our customer. We definitely owe you one! Clint Bitterman, VP-Co Owner of Master Tool & Mfg Inc.
Their willingness to spin a large part well off axis made it possible. Their attention to detail made it a success. Equally praiseworthy is their communication during the manufacturing process, assuring the best part. John Rogers, Engineering Technician Lead, University of Washington Dept. of Aeronautics & Astronautics