Airtac MARU Stainless Steel Mini Cylinder MARU25X35S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU25X35S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø25mm bore and 35mm 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
- Stroke35 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU25X35S
Between the 30 mm and 50 mm options in the MA range, the MARU25X35S gives 35 mm of precise travel on a 25 mm bore. It is a double-acting cylinder with adjustable air cushion at each end, and the front cover carries the U-type mounting bracket as part of the riveted body - one sealed unit rather than a cylinder plus a loose flange. Rated force is 245 N push and 206 N pull at 0.5 MPa.
In practice that equals about 25 kg of vertical lift at full 0.5 MPa pressure; keep a 2:1 margin and you still raise roughly 12 kg parts with confidence. The stainless round barrel and hard-chrome rod (20 um plating) handle damp or lightly washed-down corners where aluminium-bodied minis pit over time. Ports are 1/8", the rod thread is M10x1.25, and the built-in magnet picks up CMSG / DMSG / EMSG switches without any special order.
Airtac MARU Stainless Steel Mini Cylinder MARU25X35S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU25X35S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 mm |
| Acting type | Double acting + cushion (up 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 MARU Stainless Steel Mini Cylinder MARU25X35S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 25 | Bore size in mm. |
| ×35 | 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 MARU Stainless Steel Mini Cylinder MARU25X35S Is Used
Box flap hold-down on a taper
A 35 mm downward press flattens the top flap while the tape head applies; 245 N at 0.5 MPa handles double-wall cartons without bottoming out.
Stopper pin on an assembly fixture
Deploys a locating pin into a machined hole each cycle and retracts in well under a second at the 800 mm/s speed ceiling.
Vial lift in a pharma filling line
Lifts a 10 ml glass vial about 35 mm into the capping nest; the roughly 12 kg safe vertical lift covers a full tray of vials with margin.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU25X35S the Right Cylinder?
For a 35 mm move you could also consider the 20 mm bore at 157 N (0.5 MPa) if loads are tiny, or the 32 mm bore at 402 N for heavier fixtures; 245 N places this 25 mm model in the middle. It runs on 0.15-1.0 MPa (22-145 psi) filtered air, so most shop compressors drive it directly at speeds from 30 to 800 mm/s. A plain MAR does not lock in place when air fails - fit a rod lock for clamps that must hold through a pressure drop. Mounting comes from the integrated up bracket, and the standard magnet pairs with CMSG / DMSG / EMSG sensors.
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 MARU Stainless Steel Mini Cylinder MARU25X35S FAQ
Bore 25 mm, stroke 35 mm, rod 10 mm with M10x1.25 male thread, ports 1/8". Push is 245 N at 0.5 MPa and 343 N at 0.7 MPa; pull is 206 N at 0.5 MPa and 289 N at 0.7 MPa; theoretical maximum is 50 kgf at 1.0 MPa. Stroke 35 mm is a standard length on this bore.
The U-version carries its own up/top mounting bracket on the front cover, formed when the cover is riveted onto the stainless barrel, so there is no separate flange or foot to buy. Air ports are 1/8" on this 25 mm bore, the rod thread is M10x1.25, and I or Y rod knuckles fit the 10 mm rod if the joint needs to swing.
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