Msatar offers one-stop supply of precision ground aluminum rods. Made from premium raw materials and undergoing centerless grinding and double-end chamfering (to prevent material jamming), these rods are specifically designed for Swiss-type automatic lathes with spindle speeds exceeding 8000 rpm. They significantly increase material yield, reduce downtime, and save on material and labor costs.
Alloy Grades: 1100, 2014, 2024, 2219, 3003, 5083, 5086, 6061, 6063, 7050, 7075
Specifications: EN 573, DIN EN 754-3, BS EN 755, ASTM B211, ASTM B221
Precision Levels: Outer diameter tolerance ±0.02mm, roundness <0.005mm, straightness <0.2mm/m, surface finish 3Ra.
Hot selling products of precision ground aluminum rods
1100 Precision Ground Aluminum Rod
Temper: H14, H16, H18
Diameter: 0.04"-8"
Specifications: ASTM B211, ASTM B221, AMS 4102, QQ-A-225/1
1100 alloy is a low-strength alloy with excellent corrosion resistance, formability, high conductivity, and weldability. Its outstanding machinability makes it the ideal choice for precision electronic components and decorative trim.
2011 Precision Ground Aluminum Rod
Temper: T3, T6
Diameter: 0.04"-10"
Specifications: ASTM B211, ASTM B221, AMS 4115, AMS 4116, QQ-A-225/3
2011 alloy is renowned for its excellent machinability, making it one of the easiest alloys to machine. It offers good corrosion resistance and moderate strength, making it ideal for high-precision mechanical components.
2024 Precision Ground Aluminum Rod
Temper: T351, T3511, T4
Diameter: 0.04"-16"
Specifications: ASTM B211, ASTM B221, AMS 4120, AMS 4339, AMS 4152, QQ-A-225/6
As a typical alloy in the aerospace industry, 2024 offers an excellent strength-to-weight ratio and outstanding fatigue resistance. It is easy to machine at high speeds, with precise machining details and a smooth surface finish.
Stock Dimensions of 2024 Precision Ground Aluminum Rod
| 2024 T4 Precision Ground Aluminum Rod | ||||||
| φ10 | φ11 | φ12 | φ13 | φ14 | φ15 | φ16 |
| φ17 | φ18 | φ19 | φ20 | φ21 | φ22 | φ23 |
| φ24 | φ25 | φ26 | φ27 | φ28 | φ29 | φ30 |
6061 Precision Ground Aluminum Rod
Temper: T6, T651, T6511
Diameter: 0.04"-16"
Specifications: ASTM B211, ASTM B221, AMS 4115, AMS 4116, AMS 4117, QQ-A-200/8, QQ-A-225/8
6061 aluminum rod is widely used for its excellent mechanical properties, superior corrosion resistance, and machinability. It is one of the most versatile alloys available.
Stock Dimensions of 6061 Precision Ground Aluminum Rod
| 6061 T6 Precision Ground Aluminum Rod/mm | ||||||
| φ4 | φ5 | φ6 | φ6.5 | φ7 | φ7.5 | φ8 |
| φ8.5 | φ9 | φ9.5 | φ10 | φ10.5 | φ11 | φ11.5 |
| φ12 | φ13 | φ14 | φ15 | φ16 | φ17 | φ18 |
| φ19 | φ20 | φ21 | φ22 | φ23 | φ24 | φ25 |
| φ26 | φ27 | φ28 | φ29 | φ30 | φ31 | φ32 |
| φ33 | φ34 | φ35 | φ36 | φ38 | φ40 | customize |
6262 Precision Ground Aluminum Rod
Temper: T4, T6, T651
Diameter: 0.04"-10"
Specifications: ASTM B211, ASTM B221, QQ-A-225/10
6262 aluminum alloy offers excellent machinability and superior corrosion resistance, making it suitable for automatic lathe machining. It is commonly used to manufacture high-precision mechanical components with a fine surface finish, such as bolts, screws, and connectors.
7075 Precision Ground Aluminum Rod
Temper: T6, T651, T6511
Diameter: 0.04"-16"
Specifications: ASTM B211, ASTM B221, AMS 4122, AMS 4123, AMS 4124, AMS 4186, AMS 4187
7075 aluminum alloy is a high-strength aluminum alloy with an excellent strength-to-weight ratio and good fatigue strength. It is widely used in aerospace bolts, gears, and other high-performance precision components.
Stock Dimensions of 7075 Precision Ground Aluminum Rod
| 7075 T6 Precision Ground Aluminum Rod | ||||||
| φ10 | φ11 | φ12 | φ13 | φ14 | φ15 | φ16 |
| φ17 | φ18 | φ19 | φ20 | φ21 | φ22 | φ23 |
| φ24 | φ25 | φ26 | φ27 | φ28 | φ29 | φ30 |
Don't see the precision-ground aluminum rod you need? No problem, we offer custom centerless grinding services. We can tailor the process to your exact specifications.Quick Quote
| 2017 Aluminum Rod | 2618 Aluminum Rod | 5052 Aluminum Rod | 5083 Aluminum Rod |
| 6063 Aluminum Rod | 6082 Aluminum Rod | 7050 Aluminum Rod | 7150 Aluminum Rod |
What are the advantages of Mastar precision ground aluminum rods?
Mastar offers high-quality extruded aluminum rods, cold-worked aluminum rods, polished aluminum rods, and precision-ground aluminum rods. All our aluminum rods undergo precision grinding and milling processes, resulting in extremely tight tolerances that eliminate the need for additional machining, allowing you to focus more on your final product. The advantages include:
- Eliminates wasted production time from milling, polishing, and grinding aluminum rods before final machining.
- Eliminates the negative impact caused by straightness, roundness, and diameter tolerance.
- All drawn and ground rods are double-chamfered for smooth automatic feeding on CNC machines and to prevent material jamming.
- It improves production processes, reduces waste and rework, and increases machined part output.
- Increases the efficiency of machining centers and reduces labor costs.
Mastar: your centerless grinding expert, meeting all your needs
Mastar provides a one-stop shop for precision grinding services utilizing advanced centerless grinding technology and a range of value-added options, ensuring fast delivery and high-quality production of all-ground aluminum rods.
- All raw materials comply with EN 573, ASTM B211, and ASTM B221 standards and can be customized to meet customer requirements.
- Advanced centerless grinding technology ensures extremely tight tolerances for diameter, roundness, roughness, and straightness of ground aluminum rods.
- We offer a comprehensive range of services from material procurement and heat treatment to precision straightening, laser marking, material testing, and cutting.
- AS9100D and ISO-9001:2015 certification guarantees the consistent and reliable quality of our products.
With its superior centerless grinding technology, a wide range of alloys, excellent service, and strict quality management system, Mastar has become a trusted partner in the precision machining industry.
Precision ground aluminum rod size table
Imperial size chart
| Diameter/in | Tolerance | Process | Mechanical Finish | Straightness |
| 1/8" | -0.001" to 0.001" | Cold Worked | Precision Ground | 0.013" per ft. |
| 3/16" | -0.001" to 0.001" | Cold Worked | Precision Ground | 0.013" per ft. |
| 1/4" | -0.001" to 0.001" | Cold Worked | Precision Ground | 0.013" per ft. |
| 5/16" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 3/8" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 7/16" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 1/2" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 9/16" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 5/8" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 3/4" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 7/8" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 1" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 1 1/8" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 1 1/4" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 1 3/8" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 1 1/2" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 1 3/4" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 2" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 2 1/4" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 2 1/2" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 2 3/4" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
| 3" | -0.001" to 0.001" | Extruded | Precision Ground | 0.013" per ft. |
Metric size chart
| Diameter/mm | Tolerance | Process | Mechanical Finish | Straightness Tolerance |
| 4 | -0.013 to 0.013 | Cold Worked | Precision Ground | 0.021" per ft. |
| 5 | -0.013 to 0.013 | Cold Worked | Precision Ground | 0.021" per ft. |
| 6 | -0.013 to 0.013 | Cold Worked | Precision Ground | 0.021" per ft. |
| 8 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 10 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 12 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 15 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 20 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 25 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 30 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 40 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
| 50 | -0.013 to 0.013 | Extruded | Precision Ground | 0.021" per ft. |
Precision ground aluminum rod related products
- Cold finished aluminum rod
Cold-finished aluminum rod undergoes cold drawing and finishing processes to achieve a smooth surface finish, tight tolerances, and enhanced mechanical properties. It is ideal for precision components.
- Polished aluminum rod
The polished aluminum rod features a smooth, reflective surface obtained through a fine polishing process. It is suitable for decorative and high-precision applications.
- Precision aluminum ground blanks
Precision ground aluminum blanks have tight dimensional tolerances and a fine surface finish. They are commonly used for machining high-precision components.
- Linear motion shafts
A linear motion shaft is a mechanical component designed for precise linear motion, commonly used in industrial automation, machine tools, and 3D printing.
- Aluminum bearing shaft
An aluminum bearing shaft is typically made of high-strength aluminum, serving as a lightweight alternative to steel. Designed to withstand high loads under both rotational and linear motion, it finds applications in aerospace, automotive, and other industries where weight reduction is critical.
- Aluminum rotor bar
A precision aluminum rotor bar is a critical component in electric drilling equipment and is considered a precision shaft accessory. It demands high levels of straightness, roundness, and processing uniformity.
What is a precision ground aluminum rod?
Simply put, it's an aluminum round bar that has undergone a precision centerless grinding process. This process involves using machine tools to remove material from the surface to achieve minimal tolerances. Rods that have undergone precision grinding possess a perfectly smooth surface and consistent roundness and straightness tolerances.
What are the production processes for precision-ground aluminum rods?
A precision-ground aluminum rod is a high-precision aluminum product produced through a centerless grinding process. It is widely used in aerospace, electronics, medical, and other industries. The production process is relatively complex and involves multiple steps.
- Material Selection: Based on product performance requirements, suitable aluminum alloy materials are selected. For example, 6061 aluminum alloy is commonly used for structural components, while 7075 aluminum alloy is suitable for components with high strength requirements.
- Heat Treatment: To improve the mechanical properties of the aluminum alloy, such as increasing strength, hardness, or improving machinability, heat treatment is often performed. Common heat treatment methods include annealing, quenching, and aging.
- Rough Machining: Removes casting surface oxides, burrs, and other imperfections to prepare for subsequent precision machining.
- Precision Grinding: Using a centerless grinding machine, the cutting depth is gradually reduced by controlling parameters such as grinding wheel speed, workpiece speed, feed rate, and coolant to achieve high-precision grinding.
- Straightening: Through a straightening process, deformation is eliminated by mechanical or thermal means to achieve higher dimensional accuracy and surface quality.
- Measurement: Precision measuring instruments, such as coordinate measuring machines and projectors, are used to measure the dimensions, shape, and surface roughness of the workpiece.
- Inspection: The measurement results are compared with the drawing requirements to ensure that the product meets quality standards.
- Packaging: Packaging is performed according to customer requirements to prevent product damage during transportation.
The production process of precision-ground aluminum rods starts with material selection and goes through multiple steps such as heat treatment, rough machining, precision grinding, and inspection, ultimately resulting in a finished product that meets the required specifications. Precision grinding is the core of the entire process, and by controlling various process parameters, high-precision and high-quality products can be obtained.
What is the difference between centerless grinding and milling?
Centerless grinding is a grinding process that uses two rotating grinding wheels to work on a workpiece without the need for it to be fixed at a center point. It is ideal for the mass production of high-precision cylindrical parts.
Milling is a cutting process that removes material using a rotating cutter. It is suitable for machining various shapes, such as flat surfaces, grooves, and complex geometries. Milling offers lower precision compared to centerless grinding but is suitable for processing a wider variety of workpieces.