Airtac MARF Stainless Steel Mini Air Cylinder MARF20X160S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF20X160S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø20mm bore and 160mm 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
- Stroke160 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 MARF20X160S
A 160 mm reach in a 20 mm round barrel makes the MARF20X160S a slender long pusher for light-duty lines. It is double acting with a variable air cushion at each end, and the front cover carries an integrated flange so nothing extra is bolted on. At 0.5 MPa the piston delivers 157.0 N forward and 131.9 N back.
Twin cushion needles let you soften both arrivals, so cycling up to 800 mm/s does not hammer the covers even with heavier parcels. Budget on about 94 N of real work per stroke rather than the full 157 N rating. The stainless tube and chrome-plated 8 mm rod resist outdoor damp and washdown, and the standard-fit magnet reads position through CMSG, DMSG or EMSG switches. When supply pressure drops the rod creeps rather than parking, so a rod lock is the fix where the stop point matters.
Airtac MARF Stainless Steel Mini Air Cylinder MARF20X160S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF20X160S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 160 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 MARF20X160S
| 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. |
| ×160 | 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 MARF20X160S Is Used
Pouch diverter
Swings a paddle to divert small pharma pouches into a reject lane over a 160 mm throw, with the cushion damping each swing.
Hopper slide gate
Opens and closes a mini hopper slide to dose granulate into a mixer, cycling all day at up to 800 mm/s.
Bin pusher
Nudges pick bins forward at a goods-to-person station so the picker always reaches the next bin in sequence.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF20X160S the Right Cylinder?
Step sizing is simple: 157.0 N push at 0.5 MPa for this 20 mm bore, or 245.3 N if you move to a 25 mm MAR. With 160 mm of rod extended, side loads will bow the 8 mm pin, so guide the payload in its own bushing or rail. The flange is integral to the front cover, meaning one bolted joint and no accessory bracket. Port size is 1/8 inch for all bores up to 40 mm, and the rod thread is M8x1.25.
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 MARF20X160S FAQ
Use 157.0 N push and 131.9 N pull at 0.5 MPa, or 219.8 N push and 184.7 N pull at 0.7 MPa. The 1.0 MPa theoretical limit is 32 kgf. The 8 mm rod takes an M8x1.25 thread and the air port is 1/8 inch.
Yes. Needle screws at both covers let you tune the variable air cushion stroke by stroke, so at speeds up to 800 mm/s or with heavier parcels the rod still lands softly instead of hammering the end covers.
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