Airtac MARU Stainless Steel Mini Cylinder MARU63X250S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU63X250S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø63mm bore and 250mm 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.
- BoreØ63 mm
- Stroke250 mm
- Port size1/4"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU63X250S
A 250 mm stroke on 63 mm of bore makes the MARU63X250S AirTAC's long-reach MAR option: double acting, variable air cushion at each end, and an up-mount flange rolled onto the barrel rather than bolted on later. Rated push at 0.5 MPa is 1557.9 N, with 2181.0 N available at 0.7 MPa.
For everyday sizing, keep continuous loads near 935 N - a 0.6 share of the 0.5 MPa rating - and let the cushion screws absorb end-of-stroke shock when you run fast or heavy. The stainless round tube plus hard-chrome plated rod resist corrosion in food plants and outdoor gates, and the built-in magnet works with CMSG, DMSG and EMSG switches out of the box.
Airtac MARU Stainless Steel Mini Cylinder MARU63X250S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU63X250S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1458 N |
| 0.7 MPa | 2182 N | 2041 N |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MARU Stainless Steel Mini Cylinder MARU63X250S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 63 | Bore size in mm. |
| ×250 | 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.
Where the Airtac MARU Stainless Steel Mini Cylinder MARU63X250S Is Used
Part ejector under a stamping press
Clears long die parts off the bolster; 1557.9 N push at 0.5 MPa rows the part into the discharge chute each cycle.
Roller-gate opener in a feed mill
Slides a heavy gate across a grain spout; the 1457.4 N pull at 0.5 MPa closes it against product pressure.
Deep-drawer bin ejector
Pushes full steel tote bins out of a rack slot; 2181.0 N at 0.7 MPa shifts a loaded bin without a second push station.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU63X250S the Right Cylinder?
Sizing both ways: the next MAR bore down, 50 mm, pushes 981.3 N at 0.5 MPa and sips less air; 63 mm at 1557.9 N is where the family stops, so this sits at the top of the ladder. A plain MAR will not hold position when pressure drops - the rod simply drifts, so pair it with a rod lock for fail-in-place jobs.
The front-cover up bracket means one part number handles mounting, and the built-in magnet keeps CMSG / DMSG / EMSG sensing simple. With 250 mm of exposed rod, guide the load in its own bearings; side load bends a 16 mm rod long before the seals complain.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MARU Stainless Steel Mini Cylinder MARU63X250S FAQ
At 0.5 MPa: 1557.9 N extend, 1457.4 N retract. At 0.7 MPa: 2181.0 N extend, 2040.3 N retract. Maximum theoretical force at 1.0 MPa is 317.7 kgf. Air supply can run 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi).
Tune the variable cushion on first run - open the end screws gradually until the 250 mm stroke lands without a bang, then run anywhere in the 30-800 mm/s window. The magnet is built into the piston as standard on all MA cylinders, so CMSG / DMSG / EMSG switches mount straight onto the tube.
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