Airtac MARU Stainless Steel Mini Cylinder MARU20X190S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X190S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 190mm 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
- Stroke190 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 MARU20X190S
A 190 mm reach in the smallest MAR bore: this double-acting mini cylinder delivers 157 N of push at 0.5 MPa (219.8 N at 0.7 MPa) and retracts with 131.9 N. The variable air cushion at both ends lets you tune away end-of-stroke shock even near the 800 mm/s top of its 30-800 mm/s speed band.
Its stainless-steel barrel and hard-chrome plated 8 mm rod handle washdown and damp air far better than painted minis, and the riveted round body carries its own top bracket, so no separate foot is ordered. Working the numbers: at 0.5 MPa expect roughly 94 N of usable push once you keep a margin, enough to lift about 8 kg vertically.
Airtac MARU Stainless Steel Mini Cylinder MARU20X190S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X190S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 190 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 MARU20X190S
| 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. |
| ×190 | 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 MARU20X190S Is Used
PCB tray seating in SMT lines
Extending 190 mm into an electronics line, the 157 N push lowers and seats populated SMT trays into transport frames without hammering, thanks to the adjustable cushion.
Laboratory sample elevators
Raising vial racks through a controlled 190 mm lift where cushioned stops keep glassware from jolting at either end of travel.
Carton flap tuckers
Folding small carton flaps on a packaging bench, with the top-mount bracket bolting flat under the guide plate.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X190S the Right Cylinder?
At 20 mm this is the lightest MAR bore; stepping up to the 25 mm bore lifts push at 0.5 MPa from 157 N to 245.3 N if your actuator envelope allows. Over a 190 mm stroke, guide any side load externally, since the 8 mm rod is not meant to carry bending. Note that the plain cylinder drifts if air is lost, so add a rod lock where position must hold. The built-in U bracket bolts straight on, and I or Y knuckles still thread onto the M8x1.25 rod.
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 MARU20X190S FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa those rise to 219.8 N and 184.7 N. The theoretical ceiling at 1.0 MPa is 32 kgf. Supply air at 0.15-1.0 MPa (22-145 psi) through the 1/8" port and run 30-800 mm/s.
No. Every MA-series barrel ships with the magnet as standard, so CMSG, DMSG or EMSG switches clamp straight onto this 20 mm bore tube for end-of-stroke signalling without a special-order piston.
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