
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X35S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 35mm 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.
Compact cycles suit the MARU20X35S: 35 mm of stroke, 157.0 N of push at 0.5 MPa and 219.8 N if you run 0.7 MPa, all from AirTAC's riveted stainless round-body MAR family with a variable cushion at each end.
The up/top bracket is rolled into the front cover, so mounting is two bolts to a plate with nothing extra to order, and the standard magnet feeds CMSG, DMSG or EMSG switches. Derated to about 94 N of working force, this little cylinder handles clamping and kicking duty with room to spare.
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X35S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 35 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.
| 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.
| 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. |
| ×35 | 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.
Flicks sample batches from a pharmaceutical tablet counter into the reject cup in one crisp 35 mm kick.
Clamps thin sheet against a jig plate on a fabrication bench with about 94 N of working force at 0.5 MPa.
Kicks a flag into a photo-eye path on a high-speed filling carousel to verify bottle presence each cycle.
For sub-50 mm strokes nothing in MAR goes smaller than this 20 mm bore (16 mm is not offered), so treat 157.0 N at 0.5 MPa as your starting point; a 25 mm bore raises it to 245.3 N. Pull force is 131.9 N at the same pressure. The cylinder will not hold position on air loss - the cushion only softens the stop - so spec a rod lock for load-holding jobs. I and Y rod knuckles still thread onto the M8x1.25 rod, and speed runs 30-800 mm/s on 0.15-1.0 MPa (22-145 psi).
Quick checklist
Use 157.0 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push at 0.7 MPa; the theoretical peak is 32 kgf at 1.0 MPa. Proof pressure is 1.5 MPa (215 psi) and temperature spans -20 to +70 C.
The up/top bracket is rolled into the cylinder itself, so it bolts to a plate with no separate flange or foot to order. I and Y rod knuckles still fit the M8x1.25 threaded rod.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.