Airtac MARF Stainless Steel Mini Air Cylinder MARF25X100S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF25X100S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø25mm bore and 100mm 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
- Stroke100 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 MARF25X100S
A 25 mm bore moving 245 N at 0.5 MPa over 100 mm makes the MARF25X100S the workhorse of the small MAR line. It is double acting with a variable air cushion at each end, and the front flange is part of the cylinder itself, so mounting needs no extra bracket kit.
Derate to roughly 147 N of sustained working force at 0.5 MPa, enough to lift about 12 kg vertically with a 2:1 margin. The riveted stainless barrel and hard-chrome plated 10 mm rod cope with damp and lightly corrosive air where painted minis corrode, and at 0.7 MPa the same bore reaches 343 N of push for shorter, punchier cycles.
Airtac MARF Stainless Steel Mini Air Cylinder MARF25X100S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF25X100S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 100 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 MARF25X100S
| 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. |
| ×100 | 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 MARF25X100S Is Used
Bushing press-fit station
Presses small sintered bushings into housings on a bench press; 245 N at 0.5 MPa seats parts over a 100 mm draw with the cushion easing the seat.
Hopper gate latch
Opens and closes a slide gate under a 20 L ingredient hopper; pull force of 206 N at 0.5 MPa retracts the gate against light product load.
Tote stopper on a pick lane
Raises a stopper to hold a plastic tote on a gravity pick lane, then drops to release; about 12 kg vertical capacity covers the stopper arm.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF25X100S the Right Cylinder?
Step down to the 20 mm bore if 157 N at 0.5 MPa suffices, or up to the 32 mm bore (402 N) when 245 N is not enough. Ports are 1/8" and the rod thread is M10x1.25. Position is not held on air loss - the piston coasts freely once supply pressure decays, so a rod lock is the answer where loads must stay parked. The standard magnet pairs with CMSG / DMSG / EMSG switches, and at 100 mm of travel keep side loads off the 10 mm rod.
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 MARF25X100S FAQ
At 0.5 MPa: 245 N push and 206 N pull. At 0.7 MPa: 343 N push and 289 N pull. Theoretical maximum force is 50 kgf at 1.0 MPa. It is double acting with a variable air cushion at both ends and runs 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) filtered air.
The F front bracket is part of the rolled cylinder body, so the MARF25X100S bolts flush to a machine plate without buying or aligning a separate foot or flange accessory, which shortens installation on compact fixtures.
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Covers non-human-caused product damage.
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