Airtac MARF Stainless Steel Mini Air Cylinder MARF25X65S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF25X65S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø25mm bore and 65mm 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
- Stroke65 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 MARF25X65S
With 65 mm of travel in a 25 mm bore, the MARF25X65S splits the difference between short eject strokes and full slide lengths while keeping the footprint tight. The round stainless barrel is rolled onto aluminium covers around a stainless block, and the front-flange mount is integral, so no loose bracket walks out of alignment.
Air at 0.15-1.0 MPa (22-145 psi) delivers 245 N of push at 0.5 MPa and 343 N at 0.7 MPa; keep actual workload near 147 N and vertical lift near 12 kg with the usual 2:1 margin. The two-way piston seal holds its own grease for long service, and the built-in magnet feeds CMSG / DMSG / EMSG switches with no add-on parts.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X65S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF25X65S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 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 MARF25X65S
| 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. |
| ×65 | 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 MARF25X65S Is Used
Bushing press-fit
Presses bronze bushings into small pump housings on a manual assembly bench, the 245 N rating covering light interference fits.
Label reject kick
Flicks misprinted labels off a web line after the sensor triggers, 65 mm clearing the widest label in the run.
Guard interlock pin
Drops an interlock pin into a machine guard latch, the cushion landing the pin quietly at stroke end.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X65S the Right Cylinder?
A 20 mm MARF (157 N push) suits lighter kicks; once working force passes roughly 150 N, this bore's 245 N earns its place, and demands above 400 N point to the 32 mm at 402 N. Remember the rod drifts free when air is lost - the cushion only eases the stroke ends, so a rod lock is the fix where position must survive a pressure drop. For foot or separate flange anchoring instead of the integral front bracket, the MAC family is the sibling to check.
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 MARF25X65S FAQ
The full set: 245 N push and 206 N pull at 0.5 MPa, 343 N push and 289 N pull at 0.7 MPa, with 50 kgf theoretical peak at 1.0 MPa. The 10 mm rod carries M10x1.25 thread and the ports are 1/8 inch.
The barrel is stainless steel and the 10 mm rod is hard-chrome plated to 20 um, so splash, humidity and periodic washdown do not rust the working surfaces the way they would on painted-steel mini cylinders.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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