
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X40SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 40mm stroke, 1/4" 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.
Short on space but not on push, the MAC50X40SU packs a 50 mm cushioned bore into just 40 mm of stroke. Air drives the rod both ways, and a variable air cushion at each end absorbs the last of the shock, so this compact unit can clamp or press at up to 800 mm/s without hammering its covers. At 0.5 MPa it pushes 981.3 N and pulls 880.8 N - enough to lift about 100 kg vertically, or 50 kg if you keep a 2:1 margin for the real part weight.
The body is a rolled stainless-steel barrel with a hard-chrome plated rod, so damp washdown corners and outdoor rigs do not chew it up the way they do painted mini cylinders. A magnet comes built in as standard, ready for CMSG, DMSG or EMSG switches, and the U flat-end back cover gives a fixed mount with no extra bracket. Ports are 1/4", rod thread M14x1.5, pressure 0.15-1.0 MPa (22-145 psi).
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X40SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 mm |
| Acting type | Double acting + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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). |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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.
A 40 mm stroke press that crimps spade terminals on wiring-harness lines, using the 981 N push at 0.5 MPa with cushioned landings.
Stamps serial nameplates onto switchgear enclosures, the 880.8 N return stroke pulling the tool clear between parts.
Dabs and presses glue dots onto MDF drawer bottoms, the short 40 mm stroke trimming compressed-air use on every cycle.
A 50 mm bore at 0.5 MPa pushes 981.3 N; if your job needs less than about 628 N, step down to the 40 mm bore, and if you need more than the 1557.9 N of the 63 mm bore, MAC will not get you there in this family. Remember the plain MAC does not lock its position - when air is cut the rod drifts, so fit a rod lock or pilot check valve if the load must stay put. The 40 mm stroke keeps side loads negligible, the U back cover plus an FA flange or LB foot anchors the body rigidly, and the standard magnet pairs straight with CMSG sensors.
Quick checklist
At 0.5 MPa it pushes 981.3 N and pulls 880.8 N; at 0.7 MPa that rises to 1373.8 N push and 1233.1 N pull. The theoretical maximum for this 50 mm bore is 200.1 kgf at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
No. Every MAC50X40SU ships with the rolled stainless-steel barrel, hard-chrome plated rod and a built-in piston magnet as standard, so CMSG, DMSG or EMSG switches clip on without a special-order piston.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
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