The AirTAC Airtac MA Mini Cylinders MA20X75-S-CA is a genuine double acting 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 20 mm bore MA with a 75 mm stroke and the CA pivot back cover, built as a riveted round-body mini cylinder: stainless-steel barrel, hard-chrome plated carbon-steel rod, aluminium-alloy covers. Air drives the rod in both directions, and a fixed anti-impact bumper pad softens each stroke end - it is a decelerator, not an adjustable air cushion. At 0.5 MPa this bore pushes 157 N and pulls 131.9 N; run 0.7 MPa and the push climbs to 219.8 N. The CA pivot on the rear cover accepts a pin or clevis mount straight away, so a swinging linkage or lid arm needs no extra bracket. With the 157 N push you can count on roughly 94 N of real work at 0.5 MPa if you keep the usual margin - about 8 kg lifted vertically. The stainless barrel and chrome rod also shrug off washdown and damp shop air, a clear edge over painted mini bodies. Every unit is supplied with the magnet built in, so a CMSG, DMSG or EMSG switch clips on without a special piston.
| Model | Airtac MA Mini Cylinders MA20X75-S-CA |
|---|---|
| Series | MA mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 75 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. |
| ×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.
The 157 N push at 0.5 MPa seats snap-on lids on capsule trays with about 94 N of usable margin, while the bumper pad quiets the end of each 75 mm downstroke in the filling cell.
Pivoting from the CA back cover, the cylinder swings a reject flap across a small-bottle conveyor; 131.9 N of pull at 0.5 MPa retracts it fast against a light spring return flap.
In a benchtop glassware washer, the stainless barrel and hard-chrome 8 mm rod resist splash and detergent mist; 157 N at 0.5 MPa raises a spray manifold of about 8 kg with margin.
Check the force window before ordering: the 16 mm bore MA tops out at 100.5 N push at 0.5 MPa, so if your mechanism needs more than about 60 N of margin, step up; if 157 N at 0.5 MPa is oversized, the 25 mm bore gives 245.3 N for heavier clamps and lifts. Ports are 1/8 on this bore with an M8x1.25 male rod thread, matched to the standard PT taper - order the G or NPT variant only if your fittings follow those standards. Like any double-acting cylinder without a locking device, this unit will drift the moment air pressure drops or the valve centres - fit a pilot check valve or rod lock wherever a held position matters. The 75 mm stroke keeps the rod short, but keep side loads off the 8 mm rod or guide the load externally. Mount via the CA pivot, or add FA flange, LB foot or SDB pivot brackets; position feedback comes free through the built-in magnet with CMSG / DMSG / EMSG switches.
Quick checklist
At 0.5 MPa the 20 mm bore pushes 157 N and pulls 131.9 N (double acting, so air does the work both ways). At 0.7 MPa that rises to 219.8 N push and 184.7 N pull. The theoretical maximum is 32 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi) with a 1.5 MPa (215 psi) proof pressure, and speed runs 30-800 mm/s.
The CA pivot lets you hang this cylinder on a pin or clevis directly - useful for swinging gates and lever arms - and fixed bumper pads absorb the impact at each end of the 75 mm stroke, though they are not an adjustable cushion. The magnet is included as standard on every MA piston, so CMSG, DMSG or EMSG reed switches drop onto the barrel for end-of-stroke signalling without any special order.
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