Airtac MARF Stainless Steel Mini Air Cylinder MARF20X200S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF20X200S is a genuine double acting + cushion (front 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 (front mount)
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF20X200S
AirTAC's MARF20X200S stretches the small MAR platform to 200 mm while keeping the front flange built into the front cover rather than bolted on. At 0.5 MPa it extends with 157 N and retracts with 131.9 N; at 0.7 MPa the figures rise to 219.8 N and 184.7 N.
Both stroke ends carry a variable air cushion, so moving loads can be slowed smoothly instead of slamming the covers. When sizing, count on about 94 N of working force at 0.5 MPa, or a vertical lift of some 8 kg once margin is allowed. The stainless tube and chrome-plated rod tolerate splashes and humidity, and the standard magnet accepts CMSG / DMSG / EMSG switches.
Airtac MARF Stainless Steel Mini Air Cylinder MARF20X200S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF20X200S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 200 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 MARF20X200S
| 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. |
| ×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 MARF Stainless Steel Mini Air Cylinder MARF20X200S Is Used
Granule hopper dosing
With roughly 8 kg of vertical lift margin, it tips small dosing hoppers of granules above a lab filler.
Bracket push-off
157 N of push at 0.5 MPa clears stamped brackets off the die face; the 200 mm stroke reaches across the press bed.
Drill jig indexing
Advances an indexing plate on a small drilling jig; cushioned ends keep the plate from slamming into the stop.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF20X200S the Right Cylinder?
Size up with a 25 mm MARF when the job needs 245.3 N at 0.5 MPa instead of 157 N; MAR begins at 20 mm, so there is no smaller step. The front flange mounts directly and separate foot or flange kits are not part of this series. On a 200 mm stroke, support the load so the 8 mm rod sees little side force, and remember the piston will move if air pressure is lost.
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 MARF20X200S FAQ
At 0.5 MPa: 157.0 N extending, 131.9 N retracting. At 0.7 MPa: 219.8 N and 184.7 N. Ceiling is 32.0 kgf theoretical at 1.0 MPa. Feed it 0.15-1.0 MPa (22-145 psi) of air filtered to 40 um; proof pressure is 1.5 MPa (215 psi) and travel speed 30-800 mm/s.
No. Every MARF20X200S ships with the magnet already built into the piston - the S in the code just confirms it. AirTAC CMSG, DMSG and EMSG reed or Hall switches clip onto the stainless barrel and slide to any position, giving end-of-stroke or mid-stroke signals with no special-order piston.
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