Airtac MARU Stainless Steel Mini Cylinder MARU20X160S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X160S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 160mm 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
- Stroke160 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 MARU20X160S
The MARU20X160S pairs a slim 20 mm stainless barrel with a 160 mm stroke in a top-mount (U) package. Air works on both faces of the piston - double acting - and needle-adjustable cushions at each end let you tune the stop so a fast cycle does not hammer the aluminium covers. Push effort at 0.5 MPa is 157 N, pull 131.9 N, and the 8 mm hard-chrome steel rod rides in a riveted stainless tube that handles damp and washdown spots better than painted minis.
For practical sizing, plan roughly 94 N of real work at 0.5 MPa (about 60% of the rating), which means this cylinder lifts around 8 kg vertically with a 2:1 margin. Because the magnet is built in as standard, CMSG, DMSG or EMSG switches snap on for end-of-stroke signalling without any special piston. Air supply is 0.15-1.0 MPa (22-145 psi) and speed 30-800 mm/s.
Airtac MARU Stainless Steel Mini Cylinder MARU20X160S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X160S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 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 MARU20X160S
| 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. |
| ×160 | 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 MARU20X160S Is Used
Lab gate drive
Sliding a shield gate on a compact test rig, opening a 160 mm viewing window while lifting an 8 kg shutter vertically.
Cosmetics lane pusher
Pushing glass bottles off a narrow transfer belt at the lane end, with the cushioned stop protecting fragile containers.
Welding fixture clamp
Clamping aluminium extrusions in a light jig, where about 94 N of usable effort holds parts steady through tacking.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X160S the Right Cylinder?
At 20 mm bore this is the lightest MA size; if 157 N at 0.5 MPa feels marginal, step up to the 25 mm bore (245 N push) or 32 mm bore (402 N). A plain cylinder drifts when air is lost - the cushions soften the stop but do not lock the rod - so add a rod lock if the load must stay put. The integrated top bracket bolts straight to a machine plate, and M8x1.25 knuckles or accessories fit the 8 mm rod; ports are 1/8".
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 MARU20X160S FAQ
At 0.5 MPa it pushes with 157 N and pulls with 131.9 N. At 0.7 MPa those rise to 219.8 N push and 184.7 N pull. The theoretical ceiling at 1.0 MPa is 32 kgf. Air range is 0.15-1.0 MPa (22-145 psi) and stroke speed 30-800 mm/s.
Yes - every MAR ships with the piston magnet already fitted, so CMSG, DMSG and EMSG reed or electronic switches mount directly on the 20 mm barrel. Order them alongside the cylinder and clamp anywhere along the 160 mm travel; no special-order piston is ever needed.
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