Airtac MARF Stainless Steel Mini Air Cylinder MARF32X25S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF32X25S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø32mm bore and 25mm 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.
- BoreØ32 mm
- Stroke25 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 MARF32X25S
Short clamp and eject moves are where this 25 mm version of the 32 mm MAR earns its slot, packing 402.2 N of push at 0.5 MPa into a tight round body. The riveted stainless barrel and hard-chromed carbon-steel rod shrug off coolant splash, condensation and mild corrosion that would eat painted minis. Even on 25 mm of travel, the adjustable air cushions at both ends trim impact so the piston never rings the aluminium covers.
No loose mounting hardware is needed: the F front cover carries its own flange bracket, and one bolt pattern fixes the cylinder to the fixture. In practice count on about 241 N of usable push at 0.5 MPa, roughly a 20 kg vertical lift once a 2:1 margin is kept. The magnet comes fitted as standard, ready for CMSG, DMSG or EMSG switch pickup.
Airtac MARF Stainless Steel Mini Air Cylinder MARF32X25S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF32X25S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MARF32X25S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 32 | Bore size in mm. |
| ×25 | 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 MARF32X25S Is Used
Clamp on a drilling jig
Locks aluminium brackets against a bench jig stop during hole drilling, the short stroke clearing fast chip-to-chip cycles.
Bowl-feeder reject kicker
Flicks misoriented fasteners off a vibratory bowl track into a reject bin, cued by a DMSG sensor.
Gate on a capsule sorter
Opens and closes a small diversion gate on a pharma capsule sorting head between batches.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF32X25S the Right Cylinder?
A 25 mm stroke suits clamping and eject duties; the same 32 mm bore spans standard strokes to 500 mm when reach grows, and the 25 mm bore at 245 N push (0.5 MPa) is the lighter, air-saving alternative. As a plain double-acting unit it will not lock - expect rod drift if supply pressure drops, so spec a rod lock for failsafe holding. Air supply is 0.15-1.0 MPa (22-145 psi), filtered to 40 um.
Ports are 1/8 inch on this bore; order the G or T suffix for BSPP or NPT fittings. I or Y rod knuckles thread onto the M10x1.25 rod when a pivoting clamp point is wanted.
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 MARF32X25S FAQ
At 0.5 MPa expect 402.2 N push and 345.6 N pull; at 0.7 MPa those become 563.0 N and 483.8 N. The theoretical maximum for the 32 mm bore is 82 kgf at 1.0 MPa.
Yes. The variable cushion works at both ends regardless of stroke length - turn the needle screws in a touch to slow the last few millimetres, which matters when cycling toward 800 mm/s. The stainless barrel and chrome rod keep the body sealed and corrosion-free through those fast cycles.
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