Airtac MARU Stainless Steel Mini Cylinder MARU32X250S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU32X250S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø32mm bore and 250mm stroke, 1/8" 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.
- BoreØ32 mm
- Stroke250 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU32X250S
A quarter-metre of travel in a compact round body - the MARU32X250S extends 250 mm and generates 402.2 N pushing at 0.5 MPa, backed by 345.6 N on the return. The hard-chrome plated 12 mm rod runs in a rolled stainless tube, a combination that resists rust in outdoor and damp food-plant air. Speed spans 30-800 mm/s on 0.15-1.0 MPa (22-145 psi).
Size actuators around 241 N of usable push rather than the raw 402.2 N; the reserve absorbs pressure dips and seal wear. The variable cushion at each stroke end is set with the needle screws during commissioning. Because the up-mount bracket is already on the front cover, installation is one bolt pattern - no separate foot or flange to order. The built-in magnet drives CMSG and EMSG switches as standard.
Airtac MARU Stainless Steel Mini Cylinder MARU32X250S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU32X250S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting + cushion (up mount) |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 | 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MARU32X250S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 32 | 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 MARU32X250S Is Used
Chute diverters in bottling plants
Routing 500 ml bottles between two chutes; the 250 mm stroke spans the chute width while washdown spray hits the stainless barrel.
Robot cell door actuators
Sliding a machine-guard door 250 mm on a welding cell, with the air cushion easing the 20 kg door to a stop at each end.
Tote stopper gates on sortation
Raising a stopper to catch totes on a gravity conveyor; 402.2 N handles repeated impacts from arriving bins.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU32X250S the Right Cylinder?
The 32 mm bore sits between the 25 mm (245.3 N at 0.5 MPa) and the 40 mm (628.3 N), so most gate and pick-and-place jobs land here. At 250 mm the rod is well inside the 500 mm standard stroke limit, but side loads bend long rods - carry off-axis weight on external guides. Air port is 1/8", rod thread M10x1.25. If the process must hold position through an air failure, the MAR alone will not - specify a rod lock alongside it.
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 MARU32X250S FAQ
Push at 0.5 MPa is 402.2 N and pull is 345.6 N; at 0.7 MPa push reaches 563.0 N and pull 483.8 N. Theoretical maximum is 82 kgf at 1.0 MPa. Ports are 1/8", rod thread M10x1.25, rod diameter 12 mm.
The barrel is stainless steel and the rod is carbon steel hard-chrome plated to 20 um, so condensation, mild corrosion and occasional washdown do not pit the surface the way they do on painted mini cylinders. Aluminium covers are riveted to the tube for a sealed round body.
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