Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 115mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ25 mm
- Stroke115 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU
With a 25 mm bore pushing 245 N at 0.5 MPa, the MAC25X115SU sits in the mid-strength band of AirTAC's round mini line. The 115 mm stroke moves a stainless-steel barrel that is rolled tight onto aluminium covers - no tie-rods to loosen - while the hard-chrome plated 10 mm rod shrugs off washdown and damp air. Double-acting with a variable air cushion at each end, it runs 30-800 mm/s across 0.15-1.0 MPa (22-145 psi).
The magnet is built in as standard, so CMSG, DMSG or EMSG switches clip on without a special piston. For sizing, expect roughly 147 N of usable push at 0.5 MPa once you keep a working margin - that is about 12 kg lifted vertically at a 2:1 ratio. At 0.7 MPa the same bore reaches 343.4 N, and the U flat-end back cover accepts a fixed plate or bracket directly.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 115 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×115 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU Is Used
Packaging diverter gate
A 115 mm throw sweeps cartons off a checkweigher lane into a reject chute, with the flat-end cover bolted flush to the conveyor side rail.
Assembly fixture clamp
Clamps light brackets in a small welding or assembly jig; about 147 N of working force holds parts without crushing thin sheet.
Capper lid press
Presses caps home on jars at a semi-auto filling bench, with the cushion screws tuned so glass never takes a hard landing.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU the Right Cylinder?
For lighter duty, the 20 mm bore gives 157 N at 0.5 MPa; when that is not enough, the 32 mm bore pushes 402 N. This cylinder will not hold position when air drops - the piston drifts - so fit a pilot check valve or rod lock for suspended loads. Mounting options include FA flange, LB foot and SDB pivot bracket, and the 115 mm stroke warrants checking side load so the 10 mm rod is not bent.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X115SU FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N. At 0.7 MPa those rise to 343.4 N and 288.5 N. The theoretical maximum for the 25 mm bore is 50 kgf at 1.0 MPa. Ports are 1/8 inch, the rod is 10 mm with an M10x1.25 male thread, and the built-in magnet suits CMSG, DMSG and EMSG switches.
No - the rolled U cover presents a flat face you can bolt to a fixed plate or machine wall without adapters. If the job needs pivoting, order the CA or CM back cover instead, or add an SDB pivot bracket. Either way the magnet and sensors are already fitted.
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