Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SCA 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 MAC25X120SCA
A pivoting CA back cover sets the MAC25X120SCA apart: hang the rear eye on a pin or clevis and the cylinder can swing as the load path changes over its 120 mm stroke. At 0.5 MPa the 25 mm bore delivers 245.3 N forward and 206.1 N back, while the cushion screws at both ends let you trim the landing so a swinging load never slams. Supply 0.15-1.0 MPa (22-145 psi) and travel between 30 and 800 mm/s.
The stainless barrel is rolled onto its covers, a build that tolerates moisture and light chemicals far better than painted minis. Inside, a grease-storing two-way seal keeps friction low through the full stroke. Every unit carries a standard magnet for CMSG, DMSG and EMSG sensors. Halve the 245 N rating and you still have about 147 N of working push - roughly 12 kg of vertical lift with a 2:1 margin.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SCA |
|---|---|
| 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 MAC25X120SCA
| 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 MAC25X120SCA Is Used
Carousel indexing arm
Swings parts between stations on a small rotary table, the CA eye riding a fixed pin so the linkage never side-loads the rod.
Tilting discharge chute
Tips a hopper outlet chute open for batch release, with the 120 mm stroke giving enough rotation for a full pour.
Sampler lift in a pilot plant
Dips a probe head into a process vessel on a pivoting arm, where the stainless build handles splashes and frequent rinsing.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X120SCA the Right Cylinder?
Compare the 20 mm bore (157 N at 0.5 MPa) when force is marginal and the 32 mm bore (402 N) when it is not. Remember the piston drifts if supply air is lost, so hang suspended loads on a rod lock or check valve instead of relying on the cushion. Pair the CA cover with an SDB pivot bracket, or step to FA flange and LB foot for fixed frames; the magnet needs no special order.
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 MAC25X120SCA FAQ
The 25 mm bore pushes 245.3 N and pulls 206.1 N at 0.5 MPa; at 0.7 MPa that becomes 343.4 N push and 288.5 N pull, with 50 kgf theoretical peak at 1.0 MPa. Feed it 40 um filtered air at 0.15-1.0 MPa (22-145 psi), run 30-800 mm/s, and use the 10 mm rod's M10x1.25 thread with 1/8 inch ports.
Choose CA when the load path rotates - linkages, tilting trays, swing clamps - because the rear eye follows the motion instead of bending the rod. On straight pushes against a fixed frame, the U or CM back cover is simpler. On first start-up, bleed the cushion needles in gradually until the load stops clean.
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