0102030405
ACU Series Free Mount Cylinder/Single Rod Double Acting
Description
The ACU Series free-mount cylinders are designed to provide precise and reliable performance in a wide range of industrial applications. With their rugged construction and diverse mounting options, these cylinders are ideal for systems requiring multiple positioning functions. With a wide selection of sizes and stroke lengths, they ensure optimal performance in a variety of operating conditions.
Symbol

Specification
| Cylinder Diameter (mm) | 6 | 10 | 16 | 20 | 25 | 32 |
| Used Fluid | Air | |||||
| Guaranteed Pressure Resistance | 1.05MPa | |||||
| Maximum Operating Pressure | 0.7MPa | |||||
| Minimum Operating Pressure | 0.12MPa | 0.06MPa | 0.05MPa | |||
| Ambient and Fluid Temperatures | Without magnetic switch: -10°C to 70°C With magnetic switch: -10°C to 60°C (but not frozen) |
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| Lubrication Supply | No oil | |||||
| Used Piston Speed | 50~500mm/s | |||||
| Cushioning | Cushioning | |||||
| Rod End Thread | External thread | |||||
| Stroke Length Tolerance |
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Stroke
| Cylinder diameter (mm) | Standard stroke (mm) |
| 6、10、16 | 5、10、15、20、25、30 |
| 20、25、32 | 5、10、15、20、25、30、40、50 |
Ordering Code

Internal structure and main parts materials
| Serial number | Name | Materials | Notes |
| 1 | Cylinder | Aluminum alloy | Hard anodized |
| 2 | Rodless side cylinder cover | Brass | φ6-φ10, electroless nickel plating |
| Aluminum alloy | φ16-φ32, chromate | ||
| 3 | piston | Brass | φ6 |
| Aluminum alloy | φ10-φ32, chromate | ||
| 4 | Piston rod | Stainless steel | |
| 5 | Buffer A | Polyurethane | |
| 6 | Buffer B | Polyurethane | |
| 7 | Circlip | Carbon tool steel | Phosphate coating |
| 8 | Rod end nut | Carbon steel | Chromate |
| 9 | Guide sleeve | Bearing alloy | |
| 10 | Magnetic ring seat | Brass | φ6 |
| 11 | Magnetic ring | - | |
| 12 | Magnetic switch | - | |
| 13 | Piston static seal | NBR | |
| ※14 | Piston seal | ||
| ※15 | Rod seal | ||
| ※16 | Static seal |
| Replaceable parts: sealing ring assembly | ||
| Cylinder diameter (mm) | Component model | content |
| 10 | ACU10D-PS | The above serial numbers ⑪⑮⑯ are a group |
| 16 | ACU16D-PS | |
| 20 | ACU20D-PS | |
| 25 | ACU25D-PS | |
| 32 | ACU32D-PS | |
| [Note] ※Seal assemblies ⑭⑮⑯ come as a set. Order by assembly model for each cylinder diameter. ※A grease pack (10g) is included with the seal assembly. If only the grease pack is required, order the following model number. Grease model: GR-S-010 (10g) |
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| Part Model | Applicable cylinder diameter (mm) |
d | H1 | B1 | C1 |
| NTP-006 | 6 | M3×0.5 | 1.8 | 5.5 | 6.4 |
| NTP-010 | 10 | M4×0.7 | 2.4 | 7 | 8.1 |
| NTJ-015A | 16 | M5×0.8 | 4 | 8 | 9.2 |
| NT-015A | 20 | M6×1.0 | 5 | 10 | 11.5 |
| NT-02 | 25 | M8×1.25 | 5 | 13 | 15 |
| NT-03 | 32 | M10×1.25 | 6 | 17 | 19.6 |

| Cylinder diameter (mm) | R | T | No magnetic switch | With magnetic switch | ||
| S | Z | S | Z | |||
| 6 | 7 | 6 depth 4.8 | 33 | 46 | 33 | 46 |
| 10 | 9 | 6 depth 5 | 36 | 52 | 36 | 52 |
| 16 | 12 | 7.6 depth 6.5 | 30 | 46 | 40 | 56 |
| 20 | 16 | 9.3 depth 8 | 36 | 55 | 46 | 65 |
| 25 | 20 | 9.3 depth 9 | 40 | 63 | 50 | 73 |
| 32 | 24 | 11 depth 11.5 | 42 | 69 | 52 | 79 |
| [Note] For 5mm stroke (ACU16-5D), the value is 14.5mm. | ||||||
FAQ
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What exactly does "free mounting" or "multi-surface direct mounting" mean for the ACU series cylinders? What are the advantages?
"Free mounting" refers to the cylinder's unique square body design, which allows for direct mounting on the top, bottom, or side of the body without the need for additional mounting brackets. This design significantly reduces equipment space and provides exceptional mounting flexibility, allowing engineers to freely select the mounting surface based on the optimal mechanical layout, simplifying design and reducing overall costs.
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What's the difference between "ACU" and "ACDU" in the product model?
The ACU is a standard, free-mount cylinder. The ACDU, on the other hand, is a cylinder with a built-in magnetic switch. A magnetic ring is embedded in the cylinder body, allowing for the installation of a magnetic switch (proximity sensor) to detect piston position. The ACDU model allows users to directly purchase a cylinder with a sensor function, simplifying the purchasing and assembly process.

Directional Control Valves
Air Cylinders
Rotary Actuators/Air Grippers
Vacuum Equipment
Air Preparation Equipment
Modular F.R.L.
Fittings and Tubing,Flow Control Equipment
Sensors/Switches
