The AirTAC Airtac MA Mini Cylinders MA20X125SCA is a genuine double acting standard round-body mini air cylinder with a Ø20mm bore and 125mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
With a 20 mm bore, the MA20X125SCA delivers 157.0 N of push and 131.9 N of pull at 0.5 MPa - genuine muscle for a mini that still slips into a narrow round envelope. Its riveted stainless barrel and hard-chrome plated carbon-steel rod shrug off condensation, splash and periodic washdown that corrode painted aluminium minis, and it runs on ordinary shop air from 0.15-1.0 MPa (22-145 psi).
Double acting on both faces, the cylinder carries fixed anti-impact bumper pads that soften end-of-stroke shock; they decelerate the piston but are not the adjustable air cushions you find on the MAC family. The magnet ships as standard, and derated to roughly 94 N of working force the rod handles parts around 8 kg on a vertical lift with margin.
| Model | Airtac MA Mini Cylinders MA20X125SCA |
|---|---|
| Series | MA mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 125 mm |
| Acting type | Double acting |
| 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 | Fixed anti-impact bumper pads |
| 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.
| MA | Standard round-body mini cylinder (double-acting). |
|---|---|
| 20 | Bore size in mm. |
| ×125 | 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.
125 mm of travel kicks cartons across a sortation lane; 157 N at 0.5 MPa moves light parcels cleanly at cycle speeds up to 800 mm/s.
Locks and releases a sliding guard door, with the standard magnet reporting open and closed to the PLC through a DMSG switch.
Pulls the wrap arm back 125 mm every cycle; 131.9 N of retract force returns it briskly without hammering the home stop.
At 125 mm the rod is long relative to a 20 mm bore, so guide the load or add external linear bearings to keep side loads off the 8 mm rod. Downsize to a 16 mm bore (100.5 N at 0.5 MPa) only for featherweight, fast-cycling work; step up to 25 mm (245.3 N) when tooling gets heavier. The SCA arrangement supplies a rear CA pivot eye, FA flange or LB foot brackets can be ordered alongside, and the PT ports take 1/8" tubing.
Quick checklist
At 0.5 MPa: 157.0 N extend and 131.9 N retract. At 0.7 MPa: 219.8 N extend and 184.7 N retract. The theoretical ceiling is 32.0 kgf at 1.0 MPa. Ports are 1/8", the rod is 8 mm with an M8x1.25 male thread, and 125 mm sits inside the 500 mm standard stroke ceiling.
It will not. With air removed the piston drifts freely, so a suspended or counterbalanced load needs a rod lock or pilot check valve in the circuit. The fixed bumper pads only cushion the stroke ends - they are not a brake.
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