Airtac MARF Stainless Steel Mini Air Cylinder MARF20X110S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF20X110S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø20mm bore and 110mm 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
- Stroke110 mm
- Port size1/8"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF20X110S
Spanning 110 mm, the MARF20X110S turns the compact 20 mm bore into a useful work stroke: 157 N out, 131.9 N back at 0.5 MPa, 219.8 N at 0.7 MPa and a 32 kgf theoretical ceiling. The riveted round body - stainless tube, hard-chrome plated rod, aluminium end covers - resists the splash and condensation that corrode painted housings in food plants and outdoor gear.
Sizing against real parts is simple: at 0.5 MPa the cylinder lifts about 16 kg against gravity, or roughly 8 kg once a 2:1 margin is applied, so a 5 kg slider with fixtures sits comfortably in range. The flange is machined into the front cover so the frame needs no added bracket, cushioning at both ends is dialed in with needle screws on first run, and the built-in magnet feeds CMSG, DMSG or EMSG switches for end-of-stroke signals.
Airtac MARF Stainless Steel Mini Air Cylinder MARF20X110S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF20X110S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 110 mm |
| Acting type | Double acting + cushion (front 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 MARF Stainless Steel Mini Air Cylinder MARF20X110S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 20 | Bore size in mm. |
| ×110 | 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 MARF Stainless Steel Mini Air Cylinder MARF20X110S Is Used
Trimming-fixture ejector
Pushes small zinc die-cast clips out of a trim die after cutting; 157 N at 0.5 MPa is ample for light parts.
Sorting flap on a seed line
Diverts seed packets between two chutes; the cushion setting keeps the flap from rattling at line speed.
Tote-stop on a picking conveyor
Raises a stop blade to queue small totes at a pick station, position proven by an EMSG switch on the barrel.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF20X110S the Right Cylinder?
With 20 mm as the smallest bore in the range, growth room comes from above: the MARF25X110S lifts output to 245.3 N at 0.5 MPa. The 110 mm stroke stays inside the 500 mm standard length, so it ships as a catalogue part. Over such a span, keep side loads off the 8 mm rod or guide them externally, since rod bending shortens seal life. If the load must not sag on shutdown, remember this is a drifting, non-locking actuator - the cushion softens the stop, a rod lock is what holds.
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 MARF Stainless Steel Mini Air Cylinder MARF20X110S FAQ
At 0.5 MPa: 157 N push and 131.9 N pull. At 0.7 MPa: 219.8 N push. The theoretical maximum is 32 kgf for the 20 mm bore. Air enters through 1/8 ports in PT, G or NPT, and the 8 mm rod is threaded M8x1.25.
The front flange is built into the front cover, so the cylinder bolts straight to the machine face without a separate foot or flange kit. I or Y rod knuckles still screw onto the M8x1.25 thread when the load needs a swivel joint.
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