Airtac MARF Stainless Steel Mini Air Cylinder MARF25X75S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF25X75S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø25mm bore and 75mm 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
- Stroke75 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 MARF25X75S
With the flange rolled into the front cover, the MARF25X75S needs no separate mounting plate - it faces straight onto the machine wall. Its 25 mm bore pushes 245.3 N and pulls 206.1 N at 0.5 MPa across a 75 mm stroke, running on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
A hard-chrome plated 10 mm rod rides in a stainless tube, a pairing that tolerates moisture and mild chemicals far better than coated minis. The magnet comes as standard for CMSG, DMSG or EMSG switches, dual cushions tune the stops, and in daily use about 147 N is the dependable working force behind the rating.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X75S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF25X75S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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 MARF25X75S
| 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. |
| ×75 | 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 MARF25X75S Is Used
Divider blade on a belt line
Pushes a diverting blade across a snack-food conveyor, the stainless barrel standing up to nightly washdown.
Weld-cell fixture clamp
Clamps tube assemblies in a manual weld jig, using roughly 147 N of working force for repeatable holding pressure.
Small hopper gate
Opens and closes a sliding gate on a plastic-pellet hopper, where the cushion damps the gate into its seat.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X75S the Right Cylinder?
Compare 25 mm against its neighbours: the 20 mm bore gives only 157.0 N at 0.5 MPa while a 32 mm bore delivers 402.2 N - pick 25 mm when 245.3 N forward covers the job with margin. Since pressure loss means lost position, remember the MARF will not park under load without air; specify a separate rod lock where holding matters.
Its 75 mm stroke keeps side-load modest, but guide heavy or off-centre parts externally, and the piston magnet is ready for DMSG switching out of the box.
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 MARF25X75S FAQ
Extension force is 245.3 N and retraction 206.1 N at 0.5 MPa, rising to 343.4 N and 288.5 N at 0.7 MPa, with a 50 kgf theoretical ceiling at 1.0 MPa. Air ports are 1/8" and the rod thread is M10x1.25.
The MARF25X75S rolls its flange into the front cover, so no FA plate or foot bracket is needed - the body bolts flush to a flat machine face. I and Y rod knuckles still fit the M10x1.25 thread if your linkage calls for them.
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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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