Airtac MARF Stainless Steel Mini Air Cylinder MARF25X15S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF25X15S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø25mm bore and 15mm 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
- Stroke15 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 MARF25X15S
A short-thrust workhorse, the MARF25X15S pairs a 25 mm bore with just 15 mm of travel in a riveted stainless round barrel. It is double acting with a variable air cushion at both ends, and the front flange bracket is already part of the front cover, so no separate flange hardware is needed. At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa the push rises to 343.4 N. Rated 0.15-1.0 MPa (22-145 psi) with 30-800 mm/s speed.
Keep real work near 147 N (0.6 x the 245.3 N rating) and the cylinder will cycle all day without leaning on its limit. The hard-chrome plated 10 mm rod over a carbon-steel core shrugs off washdown and damp air better than painted minis, and because the magnet is built in as standard, CMSG, DMSG or EMSG switches clip straight on. Air ports are 1/8 in. and the rod thread is M10x1.25.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X15S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF25X15S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 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 MARF25X15S
| 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. |
| ×15 | 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 MARF25X15S Is Used
Short-stroke part ejection
Kicking a machined bushing off a locating pin on a small CNC fixture, where 15 mm of travel and about 147 N of usable push are exactly enough.
Gate or detent actuation
Toggling a locking pin on a packaging machine carousel; the F flange mounts the round barrel flush against the frame plate.
Bench-top test fixture
Apply a quick 245 N press to a sample or switch in a lab rig, with the cushion damping the contact so the part is not slapped.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X15S the Right Cylinder?
At 245.3 N push on a 25 mm bore, step down to a 20 mm MAR (157 N at 0.5 MPa) if your load is under about 90 N, or step up to a 32 mm bore (402.2 N) above roughly 240 N of real work. The 15 mm stroke suits clamping and ejecting rather than long transfers. Like any double-acting cylinder it drifts if air is lost, so add a rod lock where a position must survive a drop in pressure. I and Y rod knuckles thread onto the M10x1.25 male rod, and the integrated flange bolts the barrel straight to the machine.
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 MARF25X15S FAQ
At 0.5 MPa it pushes 245.3 N and pulls 206.1 N; at 0.7 MPa the figures are 343.4 N push and 288.5 N pull. Theoretical maximum at 1.0 MPa is 50 kgf. Air ports are 1/8 in., the rod is 10 mm with an M10x1.25 male thread, and operating range is 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
The F version carries its mounting bracket on the front cover itself, so the cylinder bolts to a plate without ordering a separate foot or flange. On first run, turn the needle screws at each end to set the variable cushion; a 15 mm stroke still benefits when the cycle is fast, since the piston stops hard at 800 mm/s.
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