Airtac MARU Stainless Steel Mini Cylinder MARU20X15S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X15S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 15mm 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.
- BoreØ20 mm
- Stroke15 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU20X15S
Need only a short 15 mm flick? The MARU20X15S is a double-acting stainless mini cylinder with a variable cushion at each end and an up (U) bracket formed into the front of the body. Even in this stub length the 20 mm bore still produces 157 N of push and 131.9 N of pull at 0.5 MPa on 0.15-1.0 MPa (22-145 psi) air.
The riveted stainless tube and hard-chrome 8 mm rod take splashes and mild washdown in stride, unlike painted minis. The magnet comes standard, so CMSG / DMSG / EMSG switches can confirm the short travel. With barely 15 mm to accelerate, loads near 94 N (0.6 x the 157 N push) still move crisply anywhere in the 30-800 mm/s speed band.
Airtac MARU Stainless Steel Mini Cylinder MARU20X15S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X15S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 mm |
| Acting type | Double acting + cushion (up mount) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MARU20X15S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 20 | Bore size in mm. |
| ×15 | 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 MARU20X15S Is Used
Cam flag trip on a conveyor
Flicks a sensor flag into the photo-eye path on a food-grade conveyor, with a CMSG switch confirming the trip.
Cap pre-press on a dosing station
Taps cosmetic caps home after filling; the short 15 mm throw suits small vials and shallow press fits.
Pin clamp on a machining jig
Swings a small clamp pin into place on a jig fixture, cushioned so the pin never slams into its seat.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X15S the Right Cylinder?
Even for a 15 mm throw, size by force first: 157 N push at 0.5 MPa here against 245.3 N from the next 25 mm bore if the load is heavier. Bore 20 is the smallest MAR offers, so any less force means a different series rather than a smaller bore.
Air loss lets the rod drift, so a plain MAR is no position holder - choose a rod-lock type if a fail-safe hold matters. The integrated top bracket and standard magnet mean no extra flange, foot or piston options to specify.
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 MARU20X15S FAQ
At 0.5 MPa, 157 N push and 131.9 N pull. At 0.7 MPa, 219.8 N push and 184.7 N pull. Theoretical maximum at 1.0 MPa is 32 kgf on this 20 mm bore.
The U-type bracket is integrated into the cylinder body, so it bolts straight to the machine plate with no separate front flange or foot accessory. Rod knuckles I or Y still fit the M8x1.25 rod thread.
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Covers non-human-caused product damage.
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