Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 120mm 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
- Stroke120 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 MAC25X120SU
Flush against a machine wall, the U flat-end of the MAC25X120SU needs no adapter plate - just bolt it down and run the 120 mm stroke. This 25 mm double-acting mini makes 245.3 N at 0.5 MPa and 343.4 N at 0.7 MPa, and the variable air cushion at each end trims impact so heavier payloads can stop cleanly at speeds right up to 800 mm/s.
Construction is a stainless tube roll-packed with aluminium covers and a stainless block, resisting corrosion in spots where painted minis soon spot and flake. The two-way piston seal traps grease for long, low-friction service. With the standard magnet in place, CMSG, DMSG and EMSG position switches drop on. Sized honestly, plan around 147 N of push at 0.5 MPa - enough to raise about 12 kg vertically at a 2:1 safety ratio.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 120 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 MAC25X120SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×120 | 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 MAC25X120SU Is Used
Pick-station tray lift
Raises totes 120 mm to present them at picking height, the flat-end cover screwed directly to the lift frame plate.
SMT pallet clamp
Holds PCB pallets down in a stencil printer, where 147 N of working force secures boards without warping them.
Dial-table presence probe
Pushes a part into its nest and a DMSG switch confirms full seat, giving the PLC a cheap go/no-go signal each index.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SU the Right Cylinder?
Step down to the 20 mm bore (157 N at 0.5 MPa) for lighter gates, or up to 32 mm (402 N) for small presses. Air supply spans 0.15-1.0 MPa (22-145 psi). Note that nothing holds the piston when air fails; a rod lock or check valve does that job. For pivoted frames, swap the U cover for CA or CM, or bolt on an SDB bracket; FA flange and LB foot suit fixed mounts.
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 MAC25X120SU FAQ
At 0.5 MPa: 245.3 N extend, 206.1 N retract. At 0.7 MPa: 343.4 N extend, 288.5 N retract. The theoretical maximum is 50 kgf at 1.0 MPa. The bore is 25 mm, the rod 10 mm with an M10x1.25 thread, ports 1/8 inch, and the standard magnet pairs with CMSG, DMSG and EMSG switches.
Needle screws at both ends meter the exhaust so the last few millimetres decelerate smoothly. Back them fully off at first start-up, then close them gradually until the load stops without bounce. That lets you push toward the 800 mm/s end of the 30-800 mm/s range and handle heavier parts without cracking the covers.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.