Airtac MARU Stainless Steel Mini Cylinder MARU40X35S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU40X35S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke35 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU40X35S
Compact in travel yet mid-sized in muscle, the MARU40X35S pairs a 40 mm stainless round barrel with a 35 mm stroke in a double-acting, cushion-each-end design whose up-facing bracket is machined as part of the cylinder itself. Because the aluminium covers are rolled onto the tube and the 16 mm rod is hard-chrome plated to 20 um, the assembly seals reliably in splashy, dusty cells that defeat painted-steel minis. Connections are 1/8" ports with an M12x1.25 male rod thread.
Force at 0.5 MPa lands at 628.3 N push, so treat roughly 377 N as the working figure or think of it as raising about 32 kg on a vertical axis with margin to spare. Cushion screws at both ends are turned in on commissioning to quiet the stop, and the fitted magnet means CMSG, DMSG and EMSG switches clip straight on. Pressure runs 0.15-1.0 MPa (22-145 psi) with speeds of 30-800 mm/s in air filtered to 40 um.
Airtac MARU Stainless Steel Mini Cylinder MARU40X35S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU40X35S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 mm |
| Acting type | Double acting + cushion (up mount) |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MARU40X35S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 40 | 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 MARU40X35S Is Used
Welding jig clamp
Clamping aluminium extrusion frames in a fixture: 628.3 N of push holds joints square, and the 35 mm stroke suits tight clamp arms beside the torch.
Checkweigher kick-off
Nudging underweight cartons off a checkweigher lane - the short stroke fits under the guard rail and the magnet drives a CMSG switch for reject counting.
Lab slide actuator
Driving a reagent slide in an analytical instrument, where the stainless body tolerates frequent alcohol wipes and the 40 mm bore keeps push forces gentle.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU40X35S the Right Cylinder?
Sizing both directions: step down to a 32 mm bore for 402.2 N at 0.5 MPa or up to a 50 mm bore for 981.3 N; this 40 mm barrel gives 628.3 N. At only 35 mm stroke there is little rod overhang, but keep lateral load off the 16 mm rod anyway. The up-facing bracket means no accessory flange or foot to order, and the standard magnet pairs with CMSG, DMSG and EMSG switches 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 MARU Stainless Steel Mini Cylinder MARU40X35S FAQ
Expect 628.3 N pushing and 527.8 N pulling at 0.5 MPa. Raise supply to 0.7 MPa and push reaches 879.6 N, while the 1.0 MPa ceiling equates to 128.1 kgf theoretically. Keep air at 0.15-1.0 MPa (22-145 psi), filtered to 40 um, and stroke speeds within 30-800 mm/s.
No. A magnet is built into the piston as standard equipment, so CMSG, DMSG and EMSG switches drop onto the barrel and report end positions immediately - no special-order piston or retrofit is needed.
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