Airtac MAC Stainless Steel Mini Air Cylinder MAC20X215SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X215SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 215mm 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
- Stroke215 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 MAC20X215SU
Twenty millimetres of bore, 215 mm of stroke and a variable air cushion at each end: that is the MAC20X215SU in one line. It is double acting, pushing 157 N and pulling 131.9 N at 0.5 MPa, and 219.8 N forward at 0.7 MPa, with a 1.5 MPa (215 psi) proof rating behind the normal 0.15-1.0 MPa (22-145 psi) window.
Its riveted stainless round body and hard-chrome plated rod are the reason it survives misty food-plant air that stains painted minis. The U flat-end back cover fixes the body square; add an FA flange or LB foot when a 215 mm body needs extra support. Keep in mind the rod drifts freely if air is lost - a pilot check valve or rod lock holds the load, while the cushion only softens arrival. At 0.5 MPa count on roughly 94 N of honest working force, or an 8 kg vertical lift with margin, and the standard magnet rides along for CMSG, DMSG or EMSG sensing.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X215SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X215SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 215 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 MAC20X215SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×215 | 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 MAC20X215SU Is Used
Carton closer on a case packer head
215 mm of stroke swings a top-flap arm across a small case, and the cushions soften flap contact under 157 N of push force.
Spool tensioner on a wire winder
Retraction force of 131.9 N at 0.5 MPa holds steady idler-arm pressure while the stainless body shrugs off cutting-fluid mist.
Extension stage for a demo rig
A long-reach push rod for exhibition models, kept still whenever the supply drops by adding a rod lock to the 215 mm stage.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X215SU the Right Cylinder?
Forces straddle the range: 16 mm bore offers 100.5 N push at 0.5 MPa and 25 mm bore 245.3 N; if your part needs more than the 157 N this 20 mm delivers, step up rather than over-pressurise. The 215 mm stroke doubles down on side-load risk for an 8 mm rod, so guide the payload externally and keep the thrust axis true. For mounts, the U flat-end back cover plus FA flange or LB foot suits rigid frames, and SDB pivot fits swing arms. A lost air line lets the piston float; a rod lock or check valve is what actually holds position.
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 MAC20X215SU FAQ
0.5 MPa gives 157 N push and 131.9 N pull; 0.7 MPa gives 219.8 N push and 184.7 N pull; theoretical maximum is 32 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa (22-145 psi).
No. Both strokes are air driven, so with pressure gone the rod drifts - the cushion is not a brake. Plumb it through the 1/8" ports and fit a pilot check valve or rod lock where a load must stay parked.
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