Airtac MAC Stainless Steel Mini Air Cylinder MAC20X15SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X15SCM is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 15mm 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.
- BoreØ20 mm
- Stroke15 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X15SCM
Only 15 mm of travel, but the 20 mm barrel still delivers 157.0 N of push at 0.5 MPa (about 16 kgf), rising to 219.8 N at 0.7 MPa. The MAC20X15SCM is double acting with a variable air cushion at both ends, so even this stubby stroke can be slowed gently into the covers instead of banging. Its body is a stainless-steel round tube with rolled-on aluminium covers - a riveted mini cylinder with a hard-chrome plated 20 um rod that stands up to damp or washed-down corners.
Plan on roughly 94 N of usable force at 0.5 MPa (60 percent of the 157.0 N rating) rather than the full figure; that margin keeps a small clamp or ejector crisp over millions of cycles. The CM round-end back cover gives a built-in pivoting eye, and because the magnet comes standard, a CMSG or DMSG switch clips on to confirm the 15 mm stroke is complete.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X15SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X15SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MAC20X15SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×15 | 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 MAC20X15SCM Is Used
Pin ejection from a drill jig
A 15 mm kick clears a dowel or pin from a drilling fixture; 157.0 N at 0.5 MPa handles small steel parts with margin to spare.
Carton flap tuck
Tucking a flap on a small box line - the short stroke matches the flap travel and the cushion stops cover hammer at speed.
Cap press verification
Pressing a plug or cap home while a CMSG switch on the standard magnet confirms the 15 mm stroke completed.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X15SCM the Right Cylinder?
At this size, compare both directions: the 16 mm bore offers 100.5 N push at 0.5 MPa, the 25 mm bore offers 245.3 N - the 20 mm sits between at 157.0 N push and 131.9 N pull. For a 15 mm stroke the rod is 8 mm and the port is 1/8 inch. Expect no position holding: when air drops or the valve centres, the piston drifts, so fit a pilot check valve or rod lock if the load must stay put. The CM round-end cover pivots on a pin directly; add an FA flange, LB foot or SDB bracket if you need a fixed base.
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 MAC20X15SCM FAQ
At 0.5 MPa it pushes with 157.0 N and pulls with 131.9 N; at 0.7 MPa those rise to 219.8 N and 184.7 N. The theoretical maximum for the 20 mm bore is 32 kgf at 1.0 MPa. Running pressure spans 0.15-1.0 MPa (22-145 psi) and rod speed 30-800 mm/s.
The stainless barrel shrugs off mild corrosion and washdown that would chew a painted mini, and the riveted aluminium covers keep the package slim for crowded machines. The CM round-end back cover adds a pivoting eye without brackets, and the built-in magnet accepts CMSG, DMSG or EMSG switches as standard.
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