Airtac MAC Stainless Steel Mini Air Cylinder MAC25X400SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC25X400SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø25mm bore and 400mm 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
- Stroke400 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 MAC25X400SCM
Choose the CM round-end back cover when a rounded pivot connection suits the machine frame - the MAC25X400SCM keeps the 25 mm bore, 400 mm stroke format and 245.3 N / 206.1 N push-pull figures at 0.5 MPa. Double acting, with a variable cushion at each end that you tune with the needle screws.
The 25 kg theoretical vertical column becomes a comfortable 12 kg real-world lift once you apply a 2:1 margin. Construction stays true AirTAC MAC: a stainless tube rolled onto aluminium covers, a 20 um hard-chrome rod, and grease-retaining two-way piston seals. CMSG, DMSG and EMSG switches drop onto the barrel because the magnet is standard, not an option.
Airtac MAC Stainless Steel Mini Air Cylinder MAC25X400SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC25X400SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 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 MAC25X400SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 25 | Bore size in mm. |
| ×400 | 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 MAC25X400SCM Is Used
Hopper gate on a spice line
Sliding a discharge gate open under a seasoning hopper; the stainless surfaces cope with daily hose-down.
Wire pay-off tension station
Maintaining light tension on a wire pay-off, where about 147 N of working force at 0.5 MPa is the right scale.
Stretch wrap carriage
Driving a film carriage across a 400 mm wrapping station with cushioned stops protecting the frame.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC25X400SCM the Right Cylinder?
One step down, the 20 mm bore pushes 157 N at 0.5 MPa; one step up, the 32 mm pushes 402.2 N - pick by load, not habit. Over 400 mm of stroke, guide the load separately so the 10 mm rod never sees bending. The cylinder holds nothing once air is removed: the piston free-drifts, so add a pilot check valve or rod lock for suspended or clamped work. Alongside the CM round-end cover you can order FA flange, LB foot or SDB pivot brackets, and PT ports come standard with G and NPT as options.
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 MAC25X400SCM FAQ
At 0.5 MPa: 245.3 N push, 206.1 N pull. At 0.7 MPa: 343.4 N push, 288.5 N pull. Theoretical peak: 50 kgf at 1.0 MPa. The double-acting piston runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), is proof tested to 1.5 MPa (215 psi), and travels 30-800 mm/s.
The CM round-end back cover suits rounded pivot connections without fabricating brackets. The piston magnet is included as standard on this MAC, so CMSG / DMSG / EMSG switches clip straight on. Rod thread is M10x1.25 and the 10 mm rod is hard-chrome plated for wear life.
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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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