Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCA 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 MAC20X80SCA
A 20 mm bore with an 80 mm stroke in AirTAC's riveted round-barrel format, the MAC20X80SCA is double acting and cushions the piston with metered air at both ends, so its 157 N of push force at 0.5 MPa arrives without cover-hammering even at the top of the 30-800 mm/s speed range. The stainless barrel with a hard-chrome plated 8 mm rod shakes off mild corrosion and daily washdown, a real edge over painted-steel minis in damp or food-area duty.
Because air, not a spring, drives both directions, plan real work at about 94 N (roughly 60% of the 157 N rating) when sizing the mechanism; vertically the bore lifts around 8 kg with a 2:1 margin. The magnet is fitted as standard, so CMSG, DMSG or EMSG switches clamp onto the barrel for end-of-stroke sensing - no special-order piston, no paid sensor package.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCA |
|---|---|
| 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 MAC20X80SCA
| 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 MAC20X80SCA Is Used
Reject pusher on a bottling line
The CA pivot eye swings with the lever arm while 157 N of push clears fallen bottles from the lane at up to 800 mm/s, and the air cushion stops the arm from slamming home.
Cheese-portion ejector in a washdown cell
Stainless barrel and chrome-plated 8 mm rod shrug off daily hose-down where painted mini cylinders rust through within months.
Bench-top wire terminal crimper
The variable cushion soaks up impact at both ends of the 80 mm stroke and a DMSG switch confirms the ram has fully retracted before the operator loads the next terminal.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X80SCA the Right Cylinder?
Compare downward: the 16 mm bore reaches only 100.5 N push at 0.5 MPa; upward, the 25 mm bore delivers 245.3 N - this 20 mm model sits comfortably between for light clamping and transfer jobs. Supply is 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), ports 1/8", male rod thread M8x1.25.
With no air applied the rod moves freely, so it will drift under load - add a pilot check valve or rod lock where a position must be held. The CA pivot back cover pairs with an SDB pivot bracket for swinging links, while FA flange or LB foot hardware bolts it to fixed frames; keep side loads off the 8 mm rod across the 80 mm travel or guide the load externally.
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 MAC20X80SCA FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa push rises to 219.8 N; theoretical maximum output at 1.0 MPa is about 32 kgf. Air supply 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 diameter.
The CA back cover provides a pivoting attachment point that follows link arms without extra brackets, and FA flange, LB foot or SDB pivot hardware covers fixed layouts. Both cushion needles screw in to meter exhaust air - open them fully on first run-up, then close gradually until end-of-stroke shock disappears; the adjustment is variable, so re-tune whenever load or pressure changes.
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