Airtac MARU Stainless Steel Mini Cylinder MARU40X80S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU40X80S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø40mm bore and 80mm 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
- Stroke80 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 MARU40X80S
The MARU40X80S pairs a 40 mm bore with an 80 mm stroke in AirTAC's riveted round-body mini cylinder, double acting and fitted with a variable air cushion at each end. Air drives the piston both ways, so the rod returns under power, and the up-mount bracket is rolled into the front cover rather than bolted on later. At 0.5 MPa this bore pushes 628 N, placing it in the mid-force class of the MAR range.
The stainless-steel barrel shrugs off the mild corrosion that eats painted minis in damp or food-area plants, while the hard-chrome 16 mm rod keeps the seal surface smooth. A magnet is built in as standard, so CMSG or EMSG switches snap on without a special-order piston. Matched to real work, plan on roughly 377 N of usable push at 0.5 MPa, which lifts about 32 kg vertically once a 2:1 margin is applied.
Airtac MARU Stainless Steel Mini Cylinder MARU40X80S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU40X80S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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 MARU40X80S
| 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. |
| ×80 | 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 MARU40X80S Is Used
Carton flap folding
An 80 mm stroke folds tall carton flaps on a packaging line, with the cushion absorbing the snap at the end of each fold.
Conveyor gate stopper
Acts as a pop-up stop or divert gate on a bottle conveyor, cycling comfortably inside the 30-800 mm/s speed window.
Small press fixture
Delivers around 377 N of working push at 0.5 MPa for staking terminals or pressing bushings into small housings at a repair bench.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU40X80S the Right Cylinder?
Between bores, the 32 mm MAR gives 402 N of push at 0.5 MPa and the 50 mm MAR 981 N, so this 40 mm size covers the middle well. Keep in mind the rod will drift if air pressure is lost - the cushion only softens the stroke ends, it is not a lock; add a rod lock when the load must stay put. The integrated up mount bolts straight to the machine face, and the standard magnet pairs with CMSG / DMSG / EMSG switches.
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 MARU40X80S FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa push rises to 880 N. The theoretical maximum at 1.0 MPa is 128 kgf. Working air range is 0.15-1.0 MPa (22-145 psi), with proof at 1.5 MPa (215 psi).
Yes - the U bracket is rolled into the front cover, so no separate flange or foot is purchased. I and Y rod knuckles can still be fitted to the M12x1.25 male rod thread, and the 1/8" ports take standard fittings.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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