Aluminum Alloy Cylinder Tube

Lightweight structure, accurate inner diameter, and reliable surface treatment are important for cylinder tube performance. Compass Power Tech manufactures aluminum alloy cylinder tubes for pneumatic cylinders and related motion applications where weight reduction, smooth movement, corrosion resistance, and dimensional stability are required.

These aluminum alloy cylinder tubes are mainly used in cylinder systems, and they can also be applied in oxygen generators, nitrogen generators, lifting cylinders, and other equipment requiring lightweight and stable tube components.

Shape Types Aluminum Alloy Cylinder Tube

Aluminum Anodizing

Anodizing improves the surface hardness, corrosion resistance, wear resistance, and appearance of aluminum alloy cylinder tubes. Compass Power Tech can customize anodizing color and anodic coating thickness according to customer requirements.

Current anodizing capacity reaches 3,800 tons, and the maximum workpiece length for anodizing is 3.2 m.

Available anodizing options include:

Sandblasting anodizing
Natural anodizing
Bronze hard anodizing
Black anodizing
Red anodizing
Golden anodizing

Technical Specifications

Material	6063-T5, 6005-T5, 6061-T5
Inner Diameter (mm)	Ø 16– Ø 320
Inner Diameter Tolerance	ISO H9–H11
Straightness (mm/m)	≤ 1.0
Surface Roughness (µm)	Ra < 0.6
Anodic Coating Thickness (µm)	≥ 15
Surface Hardness (HV)	≥ 400

Diameter (mm)	Tolerance (mm)
Diameter (mm)	H9	H10	H11
16	0 ~ +0.043	0 ~ +0.07	0 ~ +0.110
20	0 ~ +0.052	0 ~ +0.084	0 ~ +0.130
25	0 ~ +0.052	0 ~ +0.084	0 ~ +0.130
32	0 ~ +0.062	0 ~ +0.100	0 ~ +0.160
40	0 ~ +0.062	0 ~ +0.100	0 ~ +0.160
50	0 ~ +0.062	0 ~ +0.100	0 ~ +0.160
63	0 ~ +0.074	0 ~ +0.120	0 ~ +0.190
70	0 ~ +0.074	0 ~ +0.120	0 ~ +0.190
80	0 ~ +0.074	0 ~ +0.120	0 ~ +0.190
100	0 ~ +0.087	0 ~ +0.140	0 ~ +0.220
125	0 ~ +0.100	0 ~ +0.160	0 ~ +0.250
160	0 ~ +0.100	0 ~ +0.160	0 ~ +0.250
200	0 ~ +0.115	0 ~ +0.185	0 ~ +0.290
250	0 ~ +0.115	0 ~ +0.185	0 ~ +0.290
320	0 ~ +0.140	0 ~ +0.230	0 ~ +0.360

A001

Inner Diameter (mm)	Outer Diameter (mm)	Wall Thickness (mm)
16	20	2.0
20	25	2.5
20	26	3.0
25	29	2.0
25	30	2.5
30	35	2.5
Note: Inner diameters exceeding Ø 320 mm are available upon request.

A002

No.	d (mm)	E (mm)	A (mm)	T (mm)	4×Ø d1
1	32	44	32.5	8.2	5.1
2	40	51	38	11	5.1
3	50	64	46.5	17	6.7
4	63	75	56.5	26	6.7
5	80	93	72	28	8.7
6	100	111	89	35	8.7
7	125	134	110	55	10.3

Additional Custom Services

Cut-to-length service: Aluminum alloy cylinder tubes can be cut to the required working length or assembly length.
End chamfering: Both tube ends can be chamfered to support easier machining, assembly, and installation.
Custom mold development: Custom profiles can be developed according to customer drawings or application requirements, helping customers match specific cylinder structures and equipment designs.

Packaging and Storage

Aluminum alloy cylinder tubes are packed with suitable surface protection to reduce scratches, deformation, and surface damage during transportation and storage. Packaging can be adjusted according to product size, surface treatment, and customer shipping requirements.

Looking for Custom Metal Components for Your Application?

We manufacture precision ground shafts, stainless steel tubing, piston rods and aluminum alloy cylinder tubes for hydraulic, pneumatic, machinery, energy and transportation applications. Contact us for material selection, specifications and customization support.