Airtac MAC Stainless Steel Mini Air Cylinder MAC25X40SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X40SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 40mm 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
- Stroke40 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 MAC25X40SCM
Round tail, round duties: the CM back cover on the MAC25X40SCM gives a clean cylindrical end for pivot lugs or simple through-bolts. Inside, the 25 mm bore runs double acting with adjustable air cushioning at both stops, producing 245 N of push at 0.5 MPa and 343 N at 0.7 MPa.
Every unit ships with the position-sensing magnet already in the piston, so CMSG / DMSG / EMSG switches are drop-on accessories, not a special order. For vertical use, the 245 N rating translates to about 25 kg of theoretical lift, or roughly 12.5 kg with a 2:1 margin. The stainless barrel shrugs off splash and washdown that would corrode coated-steel minis.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X40SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X40SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 MAC25X40SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 MAC25X40SCM Is Used
Oven door latch on a bake line
Warm, humid air around industrial ovens corrodes painted minis fast; this stainless barrel with a round CM tail latches and releases the door, cushioned so the latch never slams.
Ejector in a small trimming die
With 245 N of push at 0.5 MPa the rod kicks finished parts out of a trim fixture; the round-end cover bolts directly to the die shoe without adapter plates.
Soft-grip press for adhesive dispensing
A rubber pad on the rod presses glue syringes at a controlled 147 N working force; the two-way piston seal stores grease, keeping maintenance rare in a busy dispensing cell.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X40SCM the Right Cylinder?
Compare the 20 mm bore (157 N at 0.5 MPa) against the 32 mm bore (402 N) before locking in 25 mm; if either end of the range fits, take it. Port size for this bore is 1/8 in with an M10x1.25 rod thread. Do not expect the cylinder to hold position when pressure drops - the piston coasts, so add a check valve or rod lock for held loads. The CM round-end cover bolts straight to pivot ears or flat plates, and the standard magnet drops onto CMSG / DMSG / EMSG sensors.
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 MAC25X40SCM FAQ
Push at 0.5 MPa is 245 N against a 206 N pull; raise pressure to 0.7 MPa and those become 343 N push and 289 N pull. At the 1.0 MPa ceiling the theoretical maximum is 50 kgf. The operating window is 0.15-1.0 MPa (22-145 psi).
The barrel is stainless steel and the rod is hard-chrome plated carbon steel, so the cylinder tolerates humid, splashy and periodically washed environments far better than painted minis. The heterogeneous piston seals also store grease, extending service intervals. For any specific food-grade certification, confirm from datasheet.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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