Airtac MARU Stainless Steel Mini Cylinder MARU20X200S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X200S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 200mm 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
- Stroke200 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 MARU20X200S
Two hundred millimetres of travel on the smallest MAR bore makes this a slim pusher for deep fixtures. Double acting with a variable cushion at each end, it drives 157 N forward at 0.5 MPa (131.9 N back) and 219.8 N forward at 0.7 MPa, across a 30-800 mm/s speed range.
The riveted stainless round body with a hard-chromed 8 mm rod shrugs off splashes that rust painted minis, and the moulded-in top bracket means the frame gets one bolted face instead of a loose flange. In practice keep continuous work near 94 N at 0.5 MPa; that margin lets it hoist roughly 8 kg vertically with a 2:1 safety factor.
Airtac MARU Stainless Steel Mini Cylinder MARU20X200S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X200S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 200 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 MARU20X200S
| 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. |
| ×200 | 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 MARU20X200S Is Used
Bottle reject pushers on filling lines
A 200 mm stroke flicks off-spec bottles sideways between conveyor lanes, and the cushioned ends stop the pusher arm cracking at full line speed.
Sliding hopper gate lifts
Raising a small hopper gate 200 mm where the top bracket bolts flush against the chute wall with no extra hardware.
Clamping aluminium extrusions
Holding window-profile blanks during drilling, where the stainless body tolerates daily coolant mist that would corrode painted minis.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X200S the Right Cylinder?
This 20 mm bore is the entry point of the MAR range; if 157 N at 0.5 MPa feels marginal, the next bore up, 25 mm, pushes 245.3 N under the same air. Across a 200 mm stroke, support the load on an external guide so the 8 mm rod sees thrust only, not bending. The piston holds no position when air drops - it simply drifts - so pair the cylinder with a rod lock for clamps that must stay shut. Sensor needs are already covered by the standard magnet, which accepts 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 MARU20X200S FAQ
MARU20X200S: push 157 N and pull 131.9 N at 0.5 MPa; push 219.8 N and pull 184.7 N at 0.7 MPa; 32 kgf theoretical maximum at 1.0 MPa. It runs on 0.15-1.0 MPa (22-145 psi) filtered air and strokes at 30-800 mm/s.
Needle screws at both ends bleed exhaust air to slow the piston over the final millimetres, so 200 mm of travel can finish soft even with a fast-moving load. Adjust them on first commissioning, then leave the setting in place.
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