Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 20mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke20 mm
- Port size1/4"
- Acting typeDouble acting + cushion
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SU
Short approach, heavy grip: with only 20 mm of travel this double-acting cylinder still throws 981.3 N forward and 880.8 N back at 0.5 MPa from its 50 mm stainless barrel. Where a painted mini would rust through in a washdown cell, the stainless tube and hard-chrome plated 16 mm rod keep moving season after season. The U flat-end back cover gives a clean flat face for rigid bolting.
End-of-stroke shock is handled by a variable air cushion on each side - open the needle screws gradually on first run until the landing feels smooth. Working out the vertical lift from the 0.5 MPa push figure gives about 100 kgf, so with a 2:1 margin you can lift roughly 50 kg vertically and stay comfortable. Pressure window is 0.15-1.0 MPa (22-145 psi) and speed spans 30-800 mm/s; the standard magnet pairs with CMSG, DMSG and EMSG switches straight out of the box.
Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MAC50X20SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×20 | 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 MAC50X20SU Is Used
Overhead jig lifter on an assembly cell
Raises a 40 kg pallet jig vertically; the 2:1 margin below the 50 kg lift capability keeps motion smooth and repeatable at 0.5 MPa.
Belt-line reject push-off
Sweeps mislabelled bottles off a conveyor in a 20 mm jab, with cushioned ends absorbing the impact of each strike.
Label-head retract on a fill line
Pulls the label head back 20 mm after each cycle; the 880.8 N pull force retracts the head briskly without a return spring.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC50X20SU the Right Cylinder?
Sizing check: drop to the 40 mm bore (628.3 N push at 0.5 MPa) when 981 N is more than the job needs, or step up to 63 mm (1557.9 N) for pressing work. Because the rod drifts whenever supply air is removed or the valve centres, fit a pilot check valve if the load must stay parked. Alongside the U back cover, FA flange, LB foot and SDB pivot brackets are available, and the 1/4" ports plus M14x1.5 rod thread keep plumbing straightforward.
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 MAC50X20SU FAQ
At 0.5 MPa it is 981.3 N push and 880.8 N pull; at 0.7 MPa the figures grow to 1373.8 N push and 1233.1 N pull, and the 1.0 MPa theoretical peak is 200.1 kgf. Feed it 40 um filtered air between 0.15-1.0 MPa (22-145 psi); proof pressure is 1.5 MPa (215 psi) and rod speed runs 30-800 mm/s. Bore 50 uses 1/4" ports with an M14x1.5 male rod thread.
The U flat-end cover is a simple flat boss that bolts straight against a machine face, while the CM round-end cover presents a circular mount and pairs naturally with brackets such as FA flange or LB foot. Either way the built-in magnet stays standard, so CMSG, DMSG or EMSG sensors drop on without ordering a special piston.
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