Airtac MAC Stainless Steel Mini Air Cylinder MAC20X325SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X325SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 325mm 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
- Stroke325 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 MAC20X325SCA
Behind a swing arm or lever, the MAC20X325SCA's CA pivot back cover follows the arc of the load while the 325 mm stainless barrel keeps the rod aligned. The bore is double acting with a variable air cushion at each end, so end-of-stroke shock can be tuned down instead of hammering the riveted covers.
This 20 mm bore pushes 157 N and pulls 131.9 N at 0.5 MPa; run 0.7 MPa for 219.8 N push. For linkage work, count on about 94 N of real force to size the arm. The hard-chrome plated rod stands up to washdown mist, and the standard magnet works with CMSG, DMSG and EMSG switches straight out of the box.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X325SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X325SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 325 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 MAC20X325SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×325 | 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 MAC20X325SCA Is Used
Press-side part flipper
A CA pivot on the back cover lets the rod follow a swing arm that rotates hot stamped parts off a die, with 157 N driving the lever.
Hatch on a washdown line
The stainless barrel and chrome rod survive washdown mist while the 325 mm stroke swings a food-line access hatch open and shut.
Pivoting conveyor diverter
The rod pushes a pivoting diverter blade to route cartons between lanes, and the adjustable cushion damps the blade at each end of travel.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X325SCA the Right Cylinder?
Compare neighbours first: a 16 mm bore yields 100.5 N at 0.5 MPa and a 25 mm bore 245.3 N, so pick whichever sits closer to your duty than this bore's 157 N. CA pivot suits linkages, while SDB pivot brackets or LB feet bolt on when the frame needs extra support. Air pressure spans 0.15-1.0 MPa (22-145 psi) and cycle speed reaches 30-800 mm/s. A plain MAC will drift if supply drops - add a pilot check valve when the arm must hold position. The 325 mm stroke sits inside the 500 mm standard range for this bore.
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 MAC20X325SCA FAQ
At 0.5 MPa push is 157 N and pull 131.9 N; at 0.7 MPa push reaches 219.8 N and pull 184.7 N, with a 32 kgf theoretical maximum at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi).
Needle screws at both ends bleed the exhaust, so you can soften the stop as the swing arm reaches its limit and run faster cycle speeds without knocking the riveted covers loose.
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