Airtac MARF Stainless Steel Mini Air Cylinder MARF25X450S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF25X450S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø25mm bore and 450mm 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
- Stroke450 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 MARF25X450S
Long, light pushes are this model's territory. The MARF25X450S is a 25 mm bore double-acting mini cylinder with a 450 mm stroke, variable air cushions on both covers and a front flange that is part of the body rather than a bolt-on accessory. Expect 245.3 N of push at 0.5 MPa, within a 0.15-1.0 MPa (22-145 psi) supply and a 30-800 mm/s speed window.
Because the magnet is standard, position feedback via CMSG, DMSG or EMSG switches costs nothing extra. Working effort lands near 147 N once you keep a healthy margin under the 0.5 MPa rating, which equates to a 12 kg vertical lift, and the grease-retaining two-way seal holds lubrication across the full 450 mm of travel.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X450S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF25X450S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 450 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 MARF25X450S
| 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. |
| ×450 | 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 MARF25X450S Is Used
Rack gate actuator
Slides a safety gate across a picking aisle; the 450 mm reach covers a standard pallet opening and the cushion quiets the latch.
Tray infeed pusher
Feeds empty trays into a cartoner infeed chain, with the stainless barrel tolerating the humid infeed area.
Switchable stop station
Extends a stop blade to index totes on an accumulation line; the standard magnet flags blade position back to the PLC.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X450S the Right Cylinder?
Compare by force: a 20 mm bore offers about 157 N at 0.5 MPa and a 32 mm bore 402.2 N; this 25 mm sits between at 245.3 N (288.5 N pull at 0.7 MPa). Connections are 1/8 inch, the rod is 10 mm with M10x1.25 thread.
With 450 mm of exposed rod, side loads are the main risk, so guide the payload in its own slide and keep thrust in line with the bore axis. The cylinder does not lock position on air loss, so specify a rod lock for hanging or held loads. No separate FA or LB mounting is possible or needed; the F front flange is formed into the front cover.
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 MARF25X450S FAQ
Push at 0.5 MPa is 245.3 N and pull is 206.1 N; at 0.7 MPa push reaches 343.4 N. Theoretical maximum output of the 25 mm bore is 50 kgf at 1.0 MPa. Port size is 1/8 inch.
The F in MARF25X450S means a front-flange bracket formed on the cylinder itself; you bolt the flange to your machine and no separate foot or flange accessory exists for MAR. I and Y rod knuckles still thread onto the M10x1.25 rod if the load needs a swivel.
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