
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU50X300S is a genuine double acting + cushion (up mount) 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.
Cover 300 mm of travel in a round mini body - the MARU50X300S works as a long-reach pusher at 981.3 N forward and 880.8 N back at 0.5 MPa (1373.8 N at 0.7 MPa). Because the top mount is integral to the front cover, alignment to the machine rail comes down to a single bolted joint.
Treat 589 N as the practical working push at 0.5 MPa - about 60 percent of the rating - and the cylinder will run cool and last. A riveted stainless barrel resists corrosion in damp plants, and the 0.15-1.0 MPa (22-145 psi) band tolerates sagging shop air. Needle screws on both cushions let you tune the final millimetres of travel, while the built-in magnet pairs with CMSG / EMSG / DMSG switches for end-position proof.
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU50X300S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 mm |
| Acting type | Double acting + cushion (up mount) |
| 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.
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 50 | Bore size in mm. |
| ×300 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
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.
Moves cartons off a main line onto a spur conveyor, 300 mm of travel spanning even the widest SKU on the lane.
Opens a safety gate at a palletiser infeed, the long stroke clearing forklift traffic without a bulky frame.
Drives a measuring carriage over 300 mm in an inspection rig, magnet switches proving arrival at each end.
Two sizing paths: the 40 mm MAR bore (628.3 N at 0.5 MPa) fits lighter 300 mm pushes; the 63 mm bore (1557.9 N) suits heavier ones. At 300 mm of unsupported travel, side load is the real enemy - guide the load in slides or add external bearings to protect the rod and seals. The magnet is standard, so CMSG / DMSG / EMSG switches drop on for stroke-end signals. Note the piston will not hold position if air pressure drops; a rod lock handles that job.
Quick checklist
Design figures: 981.3 N push and 880.8 N pull at 0.5 MPa, 1373.8 N push and 1233.1 N pull at 0.7 MPa, and 200.1 kgf theoretical at 1.0 MPa. Pressure band 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Both caps take 1/4 inch ports on this bore size, with a M14x1.5 male thread on the 16 mm rod. Run filtered air (40 um) between 0.15-1.0 MPa (22-145 psi) and -20 to +70 C.
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