Straightlining
We deliver premium straightline finishing with methods that include stroke sanding and timesaving of various metals for aesthetic requirements in many industries.
Looks and Quality that Make The Difference
Depending on your specifications, we can finish your products with low grit sanding to remove imperfections up to high grit to produce a near-polished finish.
Common Materials We Finish with Straightlining
- Aluminum
- Stainless steel
- Bronze or brass alloys
- Sheets and plates
- 3-dimensional products
The metal finishing process is sometimes referred to as straight-line, stroke sanded, brushed, grained, or #4 finish.


The Work Behind Quality
Our onsite engineers and technicians maintain our timesaver sanders and straightlining machines to meet our stringent requirements. Perfect calibration delivers optimal performance and quality results.
Other Services
Tube Sanding


FAQs
Arrow Cryogenics uses timesaver sanding and straightlining to produce straight lines in stainless steel and other metal materials and create a flawless, uniform finish – and – to improve part flatness and increase the adhesion surface of a part or component.
The industries that most benefit from timesaver sanding and straightlining are:
- Medical devices
- Food service equipment
- Automotive
- Electronics
- Marine
Timesaver sanding and straightlining finishes stainless steel and other metal material parts efficiently and cost effectively to create a flawless and uniform finish.
Surface Roughness Conversion Chart |
|||||||
Ra (micrometers) | Ra (microinches) | RMS | CLA (N) | Rt | N | Cut-off Length (in) | Cut-off Length (mm) |
0.025 | 1 | 1.1 | 1 | .3 | 1 | 0.003 | 0.08 |
0.05 | 2 | 2.2 | 2 | 0.5 | 2 | 0.01 | 0.25 |
.1 | 4 | 4.4 | 4 | 0.8 | 3 | 0.01 | 0.25 |
.2 | 8 | 8.8 | 8 | 1.2 | 4 | 0.01 | 0.25 |
0.4 | 1.6 | 17.6 | 16 | 2.0 | 5 | 0.01 | 0.25 |
0.8 | 32 | 32.5 | 32 | 4.0 | 6 | 0.03 | 0.8 |
1.6 | 63 | 64.3 | 53 | 8.0 | 7 | 0.03 | 0.8 |
3.2 | 125 | 137.5 | 125 | 13 | 8 | 0.1 | 2.5 |
6.3 | 250 | 275 | 250 | 25 | 9 | 0.1 | 2.5 |
12.5 | 500 | 550 | 500 | 50 | 10 | 0.1 | 2.5 |
25.0 | 1000 | 1100 | 1000 | 100 | 11 | 0.3 | 8.0 |
50.0 | 2000 | 2200 | 2000 | 200 | 12 | 0.3 | 8.0 |
Ra = Roughness Average in micrometers or microinches. RMS = Root Mean Square in microinches. CLA = Center Line Average in microinches. Rt = Roughness Total in microns N = New ISO (grade) scale numbers. Cut-off Length = Length required for sample. |
Your Single Source of Total Solutions
We look beyond today to increase efficiency and serve your business.

Medical-devices
Learn about Medical-devicesMedical-devices
We finish your materials within tight tolerances to meet exacting quality and regulatory demands.

Military
Learn about MilitaryMilitary
Defense contractors rely on our anodizing, laser-marking, descaling, and other services to meet military specifications.

Aerospace
Learn about AerospaceAerospace
We offer a range of finishing services for aerospace components and maintain NADCAP certification

Precision Manufacturing
Learn about Precision ManufacturingPrecision Manufacturing
CNC manufacturers rely on our services to complete final finishing.

Pharmaceutical
Learn about PharmaceuticalPharmaceutical
We innovate processes in the science and art of finishing precision-engineered pharmaceutical components.

Water Purification
Learn about Water PurificationWater Purification
Our services for finishing water-system components include cryogenic deflashing, passivation, and laser marking.

Automotive
Learn about AutomotiveAutomotive
Our precision capabilities handle high-volume jobs for automotive OEMs.

Computing
Learn about ComputingComputing
We offer anodizing and laser marking of components and enclosures for computers and audio equipment.

Electronics
Learn about ElectronicsElectronics
Our finishing services meet critical tolerances for metal and plastic parts made for consumer electronics.

Food Service
Learn about Food ServiceFood Service
Our cleaning and finishing services meet strict regulatory requirements while enhancing performance and longevity.

Hydraulics
Learn about HydraulicsHydraulics
Our deburring, deflashing, and other services optimize the operating life of hydraulic equipment.

Firearms
Learn about FirearmsFirearms
Our suite of capabilities delivers precise results producing the highest quality finishes.





End-to-End
Finished Means Finished. Done
We eliminate the need for your parts to go elsewhere.