Airtac MAC Stainless Steel Mini Air Cylinder MAC25X350SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X350SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 350mm 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
- Stroke350 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 MAC25X350SU
A flat rear face, no pivots, no fuss: the U back cover of the MAC25X350SU bolts flush against machine plates where a pivot would be wasted. Underneath, this remains AirTAC's riveted round-body mini - stainless-steel barrel, aluminium-alloy covers, hard-chrome plated rod, double acting and fitted with a variable air cushion at both ends so 30-800 mm/s cycling never hammers the covers at the stroke ends.
At 0.5 MPa the 25 mm bore pushes 245.3 N and pulls 206.1 N; at 0.7 MPa those figures climb to 343.4 N and 288.5 N. Budget around 147 N of actual work force and the cylinder will cycle for years. As a lift it manages about 25 kg vertically, or roughly 12 kg once a 2:1 safety factor is applied. The magnet ships inside as standard equipment, so CMSG, DMSG and EMSG switches pick up position straight away. Working pressure 0.15-1.0 MPa (22-145 psi).
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X350SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X350SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 350 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 MAC25X350SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×350 | 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 MAC25X350SU Is Used
Pallet-flow stop
Raises and lowers a stopping blade on a gravity pallet lane, cushioned at both ends to keep the flow gentle.
Position-confirmed tray ejector
A CMSG switch on the barrel confirms each eject before the next tray is fed, thanks to the factory-fitted magnet.
Web tension idler arm
Presses a rolling idler against film on a wrapping machine with a steady 147 N of contact force at 0.5 MPa.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X350SU the Right Cylinder?
Between the 20 mm MA at 157 N and the 32 mm at 402.2 N (both 0.5 MPa push), this 25 mm bore is the middle choice at 245.3 N. The flat-end U cover mounts direct to a plate, or add an FA flange or LB foot when the layout calls for it; I and Y knuckles adapt the rod end. On loss of supply the piston is free to move in either direction, so a pilot check valve or rod lock covers parked loads. Over 350 mm of travel, support the load externally so the long rod never sees bending loads. Port size is 1/8-inch, rod thread M10x1.25, and the magnet for CMSG / DMSG / EMSG sensors is standard.
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 MAC25X350SU FAQ
Double acting with a variable air cushion at each end; push 245.3 N, pull 206.1 N at 0.5 MPa; push 343.4 N, pull 288.5 N at 0.7 MPa; 50 kgf theoretical maximum at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, 1/8-inch ports, magnet standard.
Not on its own. With air removed or the valve centred, the piston is free to move, so any parked or clamped load needs a rod lock or a pilot check valve in the circuit. The cushion is there to soften stroke ends, never to lock the rod.
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