Airtac MARU Stainless Steel Mini Cylinder MARU20X30S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X30S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 30mm 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
- Stroke30 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 MARU20X30S
Short on space and short on travel? The MARU20X30S delivers a 30 mm move from AirTAC's riveted round-barrel MAR platform: double acting, with an adjustable air cushion at each end and an up-mount bracket built into the front cover. Its 20 mm bore pushes 157.0 N at 0.5 MPa and pulls 131.9 N.
Turn the cushion needle screws on first run and end-of-stroke shock disappears even at full speed. Vertically, 157 N corresponds to roughly 16 kg; halve it and you can lift about 8 kg with a sensible 2:1 margin against the real part weight.
Airtac MARU Stainless Steel Mini Cylinder MARU20X30S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X30S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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 MARU20X30S
| 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. |
| ×30 | 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 MARU20X30S Is Used
Capping head press
Presses caps home on a benchtop cosmetic filler where 30 mm of travel matches the cap drop exactly.
Tray indexing pin
Drops into IC tray holes to index each row on a small electronics handling station.
Carton flap tuck
Folds the minor flap on a compact carton sealing head before the tape head passes over.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X30S the Right Cylinder?
Thirty millimetres of stroke keeps this the pick for tight envelopes; MAR starts at 20 mm bore (no 16 mm size exists), so 157.0 N of push at 0.5 MPa is the floor of the range. Step to a 25 mm bore for 245.3 N or a 32 mm bore for 402.2 N if loads grow. The magnet is built in as standard, so CMSG, DMSG or EMSG switches need no special piston. Remember the rod moves if supply air is lost - use a rod lock wherever holding a position matters.
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 MARU20X30S FAQ
157.0 N of push and 131.9 N of pull at 0.5 MPa, rising to 219.8 N of push at 0.7 MPa; the theoretical ceiling is 32 kgf at 1.0 MPa. Air is filtered to 40 um and pressure runs 0.15-1.0 MPa (22-145 psi).
The rolled stainless tube with its hard-chrome plated 8 mm rod resists mild corrosion and light washdown far better than painted mini cylinders, which counts in food, laboratory and outdoor cells.
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