The AirTAC Airtac MA Mini Cylinders MA40X50-S-CA is a genuine double acting standard round-body mini air cylinder with a Ø40mm bore and 50mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
With a 40 mm bore and a short 50 mm stroke, this MA-series round-body mini cylinder delivers 628.3 N of push and 527.8 N of pull at 0.5 MPa - roughly 64 kgf of thrust - enough for clamping, ejecting and lifting jobs where a compact envelope matters more than raw force. Air drives the rod in both directions, and fixed anti-impact bumper pads soften the strike at each end of travel (deceleration only, not an adjustable air cushion). For the same bore, the CA pivot back cover is already fitted, so a clevis-style pivoting mount is ready without extra brackets. The rolled stainless-steel barrel with its hard-chrome plated 16 mm rod shrugs off washdown and humid shop air far better than painted-steel minis, and because the magnet comes as standard, CMSG, DMSG or EMSG switches clip straight on for end-of-stroke confirmation.
| Model | Airtac MA Mini Cylinders MA40X50-S-CA |
|---|---|
| Series | MA mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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). |
|---|---|
| 40 | Bore size in mm. |
| ×50 | 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 (double rod, 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.
A 40 mm bore pushing 628 N at 0.5 MPa presses bushings into small housings on an assembly bench; the CA pivot cover lets the cylinder follow a link-arm motion onto the part.
Clamping arms on a compact warehouse gripper use the ~64 kgf thrust of this bore to hold cartons, with CMSG switches confirming the jaws are closed before travel.
On a packaging line, the 50 mm stroke folds top flaps of cartons at up to 800 mm/s, and the fixed bumper pads stop the fold without a hard metal slam.
Size against neighbours: a 32 mm bore MA gives 402.2 N push at 0.5 MPa if the load is lighter, while jobs needing more thrust or a tunable stop move up to the MAC family, which adds 50 and 63 mm bores with adjustable air cushioning. Keep in mind that a plain MA releases its load the moment air is dropped - the piston drifts, and the bumpers are not a brake - so pair it with a rod lock or pilot check valve if a held position matters. The CA pivot rear cover suits linkage and swing motions; add an FA flange, LB foot or SDB pivot bracket on the front if the installation needs a fixed anchor. A 50 mm stroke is short, so rod side-loading is minimal at normal speeds within the 30-800 mm/s range.
Quick checklist
At 0.5 MPa it pushes with 628.3 N and pulls with 527.8 N; raising supply to 0.7 MPa lifts push force to 879.6 N. The theoretical maximum for the 40 mm bore is 128.1 kgf at 1.0 MPa. Operating range is 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), and air must be filtered to 40 um.
The CA cover gives a pivoting mount straight off the rear of the rolled stainless barrel, so linkage or swing installations need no adapter. Every MA-series cylinder includes the magnet as standard, so CMSG, DMSG or EMSG reed sensors mount directly for stroke-end signalling - no special-order piston is required.
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