
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC50X300SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø50mm bore and 300mm 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.
Flat back end, full muscle: the MAC50X300SU ends in a plain U cover for bolt-on fixed mounting, yet still moves 981 N at 0.5 MPa and 1374 N at 0.7 MPa across a 300 mm stroke. It is AirTAC's double-acting cushioned mini - air drives the rod out and back, with needle valves at each end to soften arrival.
The 50 mm stainless barrel is rolled into one riveted body with aluminium covers, so humidity, coolant mist and outdoor weather do not flake it the way paint fails on steel minis. A standard-built magnet sits in the piston for CMSG, DMSG and EMSG switches from day one. If you budget by usable force, expect about 589 N of honest push at 0.5 MPa; vertically that is a 100 kg lift, or 50 kg with the usual 2:1 margin.
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC50X300SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 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. |
| ×300 | 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.
Keeps constant tension on a conveyor take-up arm; the stainless round body shrugs off the misty wash zone it sits in.
Opens and closes the feed gate above a vibratory bowl, with cushioned stops keeping the gate from chattering loose.
Clamps fixture slides on a machining pallet changer, retracting the full 300 mm to free the work area for loading.
For loads under about 60 kgf a MAC40 (628 N push at 0.5 MPa) is the cheaper pick; above this class, step up to a MAC63 at 1558 N - the 50 mm bore lands in between at 981 N. The U flat-end cover bolts straight to fixed brackets, with LB foot or FA flange hardware as options, and the piston magnet is standard. Over 300 mm, guide the load or fit an I or Y knuckle so side load never reaches the 16 mm rod. Note the rod is free to drift once the valve centres - a rod lock or pilot check valve holds anything that must stay put.
Quick checklist
Push 981 N at 0.5 MPa and 1374 N at 0.7 MPa; pull 881 N at 0.5 MPa and 1233 N at 0.7 MPa; theoretical maximum about 200 kgf at 1.0 MPa. Bore 50 mm, rod 16 mm, ports 1/4", rod thread M14x1.5, speed 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi).
It gives a plain, flat rear face for direct bolting to fixed brackets - no pivot needed. You keep the same stainless round barrel, double-acting drive, both-end variable air cushion and built-in magnet for CMSG/DMSG/EMSG switches that every MAC carries.
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Covers non-human-caused product damage.
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