Airtac MARU Stainless Steel Mini Cylinder MARU25X400S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X400S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 400mm 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.
- BoreØ25 mm
- Stroke400 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 MARU25X400S
Position feedback needs no special order on the MARU25X400S: the piston magnet ships fitted as standard, so CMSG, DMSG or EMSG reed switches simply clip onto the stainless barrel. The 400 mm stroke runs on a 25 mm double-acting bore whose front cover carries an integral up-mount bracket rolled into the body.
Push force is 245 N at 0.5 MPa and 343 N at 0.7 MPa, with a theoretical ceiling near 50 kgf at 1.0 MPa. Budgeting the job at about 147 N of real working force keeps margins healthy; on a vertical axis the same numbers let the rod lift roughly 12 kg with a 2:1 safety factor. Needle screws at both ends provide a variable air cushion, so faster cycles never hammer the aluminium covers.
Airtac MARU Stainless Steel Mini Cylinder MARU25X400S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X400S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 400 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 (Ø25mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 245 N | 206 N |
| 0.7 MPa | 344 N | 289 N |
| Max (@1.0 MPa) | 50 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 MARU25X400S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 25 | Bore size in mm. |
| ×400 | 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 MARU25X400S Is Used
Sliding guard door on a CNC lathe enclosure
The 400 mm stroke covers the full door travel while end-of-stroke cushioning keeps the machine frame quiet at every cycle.
Carton lane diverter between two belt conveyors
Push force of 245 N at 0.5 MPa shunts 8 kg cartons across the gap, and the standard magnet signals home position back to the PLC.
Vertical sample elevator in an automated test bench
With about 12 kg of practical vertical lift at a 2:1 margin, the cylinder raises sample trays between analysis stations.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X400S the Right Cylinder?
Compare 0.5 MPa push figures before settling on the bore: the 20 mm MAR manages only 157 N while the 32 mm reaches 402 N, so this 25 mm cylinder at 245 N sits in the middle for mid-weight strokes. With 400 mm of travel, side loads should be carried by external guides - the 10 mm rod is not meant to bend. Note also that the cylinder cannot park a load when air is lost; pressure off means the piston drifts, so a rod lock is the answer for true holding. Sensor-wise, the standard magnet makes CMSG, DMSG or EMSG a drop-on fit.
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 MARU25X400S FAQ
At 0.5 MPa: 245.3 N push, 206.1 N pull. At 0.7 MPa: 343.4 N push and 288.5 N pull. Theoretical maximum at 1.0 MPa is 50.0 kgf. Ports are 1/8 inch on this 25 mm bore and the male rod thread is M10x1.25.
No. Every MA-series cylinder including the MARU25X400S ships with the magnet built in, so CMSG, DMSG and EMSG switches mount directly on the barrel at no extra piston cost. Stroke speed range is 30-800 mm/s and operating pressure spans 0.15-1.0 MPa (22-145 psi).
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MARU Stainless Steel Mini Cylinder MARU25X400S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.