Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SUFA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SUFA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 80mm 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
- Stroke80 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 MAC20X80SUFA
Mount it by the face, not the barrel: the MAC20X80SUFA pairs a 20 mm bore and 80 mm stroke with an FA flange for rigid, flush bolting to machine plates. Output is 157 N push at 0.5 MPa, and variable air cushions ease the piston into both end positions instead of letting it slam.
Design around roughly 94 N of continuous working push at 0.5 MPa and seal life rewards you; the same margin means about 8 kg of vertical lifting capability. The stainless rolled barrel tolerates splash and humidity, and the factory-fitted piston magnet accepts CMSG, DMSG or EMSG switches for stroke-end signalling from the first install.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SUFA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SUFA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 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 MAC20X80SUFA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×80 | 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 MAC20X80SUFA Is Used
Z-axis head on a small drill-tap unit
Flange rigidity keeps the 157 N thrust square to the tool plate through the entire 80 mm stroke, and the cushion stops the head at the bottom of its feed.
Denesting head for stacked bakery trays
Cushioned pick and release protects thin tray rims while an EMSG switch verifies the head has fully descended before the conveyor indexes.
Insert loader beside an injection mould
The chrome-plated 8 mm rod and stainless barrel stand up to mould-machine oil mist and heat, with a fitted magnet confirming seat position each cycle.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SUFA the Right Cylinder?
Need less muscle? The 16 mm bore delivers 100.5 N push at 0.5 MPa. Heavier duty? The 25 mm bore starts at 245.3 N. Between those marks this 20 mm unit suits guided slides and clamp fixtures on 0.15-1.0 MPa (22-145 psi) air, with 1/8" ports and an M8x1.25 male rod thread.
Air cushioning is not a brake - a cylinder de-energised mid-stroke lets its load drift, so specify a pilot check valve or rod lock to pin the load. The FA flange keeps reaction forces in the mounting plate rather than the barrel screws, a real advantage over the full 80 mm travel; still keep the load guided square to the 8 mm rod to protect it from bending.
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 MAC20X80SUFA FAQ
At 0.5 MPa: 157 N push, 131.9 N pull. At 0.7 MPa: 219.8 N push. Theoretical maximum about 32 kgf at 1.0 MPa. Operating range 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, 1/8" ports, M8x1.25 male rod thread, 8 mm rod, 80 mm stroke.
The flange transfers thrust directly into a machine plate, so mounting screws and the rolled barrel joint are spared side reaction over the 80 mm stroke - useful on Z-axes and press heads. LB foot and SDB pivot hardware remain available alongside, and the standard piston magnet keeps CMSG, DMSG and EMSG sensing on the table without any modification.
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