Airtac MARF Stainless Steel Mini Air Cylinder MARF25X225S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF25X225S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø25mm bore and 225mm 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
- Stroke225 mm
- Port size1/8"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X225S
Nearly a quarter-metre of travel from a mini: the MARF25X225S covers 225 mm with a 25 mm bore, double acting and cushioned at both ends, its front-flange bracket rolled into the body rather than bolted on afterwards. Expect 245.3 N of push and 206.1 N of pull at 0.5 MPa across a 0.15-1.0 MPa (22-145 psi) working band and a 30-800 mm/s speed range.
For steady duty figure close to 147 N at 0.5 MPa - the equivalent of hoisting about 25 kg straight up, or 12.5 kg once a 2:1 margin is applied. The stainless round barrel and hard-chrome carbon-steel rod stand up to damp plants where painted bodies pit, and the factory-fitted magnet means CMSG, DMSG and EMSG position switches attach with no special piston.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X225S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF25X225S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 225 mm |
| Acting type | Double acting + cushion (front 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 MARF Stainless Steel Mini Air Cylinder MARF25X225S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 25 | Bore size in mm. |
| ×225 | 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 MARF Stainless Steel Mini Air Cylinder MARF25X225S Is Used
Saw offcut feed pusher
Feeding timber offcuts into a cross-cut saw station; with about 12.5 kg of vertical-lift capability held in reserve, the cylinder also clears the chute at cycle end.
Water-treatment slide valve
Actuating a small slide valve on a filtration skid through 225 mm of travel, the integrated flange bolting straight to the valve bracket with no extra hardware.
Connector press-in fixture
Pressing waterproof connectors home in a harness test rig - near 147 N of working force at 0.5 MPa seats them without bruising the housings.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X225S the Right Cylinder?
Sizing check: the 20 mm MAR delivers 157.0 N at 0.5 MPa and the 32 mm MAR 402.2 N, placing this 25 mm bore at roughly one and a half times the small bore. It cannot hold the rod in place once air is lost - the piston simply coasts - so choose a rod lock for strokes that must stay put. The integrated front flange covers mounting, and at 225 mm keep the guiding external to protect the slim 10 mm rod from bending.
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 MARF Stainless Steel Mini Air Cylinder MARF25X225S FAQ
Certainly: push 245.3 N and pull 206.1 N at 0.5 MPa; push 343.4 N and pull 288.5 N at 0.7 MPa; theoretical peak 50 kgf at 1.0 MPa. The 25 mm bore uses a 1/8" port and an M10x1.25 male rod thread on its 10 mm rod.
Every MA cylinder ships with the piston magnet already fitted, so CMSG, DMSG and EMSG reed or electronic switches mount directly on the barrel - no special-order piston, no retrofit. Position feedback across the full 225 mm stroke becomes a clip-on job.
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