
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X100S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 100mm 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.
Small parts, long reach: the MARU20X100S pairs AirTAC's smallest 20 mm MA bore with a 100 mm stroke and a top bracket riveted onto the barrel, so it hangs from a plate without any foot or flange accessory. Output is 157.0 N push and 131.9 N pull at 0.5 MPa, rising to 219.8 N at 0.7 MPa.
A 100 mm reach on an 8 mm rod demands clean alignment; keep the load guided and side load off the rod. Plan on roughly 94 N of working push at 0.5 MPa, and expect about 8 kg of vertical lift with a 2:1 margin. The stainless barrel and hard-chrome rod make it comfortable in washdown cells, and the standard magnet pairs with CMSG, DMSG or EMSG switches.
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X100S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 100 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. |
| ×100 | 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.
Deflects bottles between lanes on a 100 mm throw; the top mount hangs the cylinder from the conveyor rail itself.
Pushes sample vials off an autosampler tray, where about 94 N of working force is ample and stainless shrugs off cleaning agents.
Raises a lightweight inspection camera clear of the part between shots, with an EMSG switch confirming full retract.
This is the entry point of the MA range - if 157.0 N at 0.5 MPa feels thin, the 25 mm bore offers 245.3 N on the same 1/8 inch ports. Like every plain MA cylinder it does not hold position once air is lost; the load will drift, so specify a rod lock where that matters. Cushion needles at both ends tune the 30-800 mm/s stroke; the rod thread is M8x1.25 and ports take PT, G or NPT fittings.
Quick checklist
Push is 157.0 N and pull 131.9 N at 0.5 MPa; at 0.7 MPa it delivers 219.8 N push and 184.7 N pull. Theoretical maximum at 1.0 MPa is 32.0 kgf. Operating band is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
The barrel is high-precision stainless steel rolled together with aluminium covers and a stainless block, while the carbon-steel rod carries a 20 um hard-chrome plating. That combination resists mild corrosion and washdown far better than painted mini cylinders, and the variable cushion at both ends protects the covers at speed.
Genuine AirTAC parts produced by AirTAC factory.
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