Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCM 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 MAC20X80SCM
For a 20 mm bore running an 80 mm stroke, the MAC20X80SCM brings 157 N of push at 0.5 MPa in a round-end CM back cover format that takes clevis-style pins without adapters. Both stroke ends carry an adjustable air cushion, and the stainless barrel with its hard-chrome plated 8 mm rod keeps rust out of damp production corners where aluminium minis pit.
Design around about 94 N of dependable working force at 0.5 MPa (60% of rated output) and the seals will thank you over millions of cycles; in lifting terms that margin means roughly 8 kg raised vertically. The magnet comes fitted as standard, so CMSG, DMSG and EMSG switches mount straight onto the barrel for position feedback without ordering a special piston.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCM |
|---|---|
| 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 MAC20X80SCM
| 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 MAC20X80SCM Is Used
Lid-press station on a cosmetic filling machine
The 80 mm stroke reaches into the filling nest and the cushioning keeps the 157 N ram from cracking delicate caps as it seats.
Carton flap tucker on a packaging line
Round-end pivot mounting follows the tucker arm while air drives the fold in both directions at up to 800 mm/s, with the cushion easing the flap home.
Vial sorting gate on a pharma line
Washdown-tolerant stainless construction plus a fitted magnet feeding an EMSG switch verifies gate position on every divert.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCM the Right Cylinder?
Step down to a 16 mm bore if 100.5 N at 0.5 MPa covers the job, or step up to 25 mm when 245.3 N is needed - this 20 mm unit splits the two cleanly for medium-light loads. Ports are 1/8" and the male rod thread is M8x1.25; supply 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi).
Once air is removed the piston drifts - a double-acting cylinder of this type will not pin a load on its own, so specify a pilot check valve or rod lock for suspended work. The CM round end, an SDB pivot bracket, FA flange or LB foot covers most frame designs, and the variable cushioning lets you trade a little speed for a soft landing.
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 MAC20X80SCM FAQ
Push 157 N and pull 131.9 N at 0.5 MPa; push 219.8 N at 0.7 MPa; theoretical peak about 32 kgf at 1.0 MPa. Operating window 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.
The barrel is precision stainless steel with aluminium covers rolled onto it in a sealed riveted package, and the 8 mm carbon-steel rod carries 20 um of hard chrome - the combination tolerates humidity, splash and gentle washdown far better than painted or plain-aluminium minis, while the built-in magnet keeps CMSG, DMSG and EMSG switch options open from day one.
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