The AirTAC Airtac MAC Cushioned Mini Cylinders MAC20X75SCAG is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 75mm 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.
AirTAC's MAC20X75SCAG pairs a 20 mm bore with a 75 mm stroke and G1/8 BSPP ports - a parallel thread that seals on a bonded face washer rather than on the thread, a favourite on EU and Asian OEM manifold layouts and often an ordered alternative to the standard PT version. The cylinder is double acting with a variable air cushion at both ends: at 0.5 MPa it pushes with 157 N and pulls with 131.9 N, climbing to 219.8 N push at 0.7 MPa. In practice, plan for about 94 N of usable work at 0.5 MPa, which lets this unit lift roughly 8 kg vertically with a comfortable 2:1 margin. The riveted body stacks a high-precision stainless-steel barrel, a 20 um hard-chrome plated carbon-steel rod and aluminium-alloy covers, so it shrugs off mild corrosion and washdown far better than painted-steel minis in damp, food or outdoor corners. A magnet comes built in as standard, so CMSG, DMSG or EMSG switches drop straight on for end-of-stroke detection. Speed runs 30-800 mm/s across 0.15-1.0 MPa (22-145 psi).
| Model | Airtac MAC Cushioned Mini Cylinders MAC20X75SCAG |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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.
| 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.
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×75 | 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.
Ejects misfed cartons or trays off a conveyor at up to 800 mm/s, with the variable cushions soaking up the stop so the frame is not hammered at 157 N of push.
Swings a small fill-head gate or divert flap on its CA pivot back cover; the standard magnet drives an EMSG switch so the PLC confirms the gate is fully open before filling.
Holds a bracket against a locating pin during a screwdriving cycle; about 94 N of practical clamping at 0.5 MPa is enough for light fixture work, and the stainless barrel copes with coolant mist.
Check the force band before committing: the smaller MAC16 bore delivers 100.5 N push at 0.5 MPa, while the MAC25 step jumps to 245.3 N - if your part weight or clamp load sits near 157 N with the cushion needing headroom, the 25 mm bore is worth the price step. Remember the rod drifts when the valve is centred or air is lost; add a pilot check valve or rod lock if the load must stay put mid-stroke. The CA pivot back cover on this variant swings freely for linkages and pivoting levers, and the G1/8 BSPP ports should match your existing bonded-seal fittings and manifold thread standard - if your plant runs tapered pipe instead, order the NPT suffix rather than adapting.
Quick checklist
It is a double-acting cylinder - air both extends and retracts the rod. At 0.5 MPa it delivers 157 N on the push stroke and 131.9 N on the pull stroke; at 0.7 MPa these rise to 219.8 N and 184.7 N. The theoretical maximum at 1.0 MPa is about 32 kgf. Both ends carry a variable air cushion you adjust with the needle screws, and the 75 mm stroke is a standard length for this bore.
The trailing G specifies G1/8 BSPP ports - a parallel thread that seals on a bonded washer or O-ring face, not on the thread flanks. It is the usual choice on EU and Asian OEM lines and is frequently an ordered alternative to the standard tapered PT version. Match it to your existing fittings and manifold: if your plant uses tapered North-American pipe, order the NPT (T) suffix instead of forcing adapters.
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