Airtac MARF Stainless Steel Mini Air Cylinder MARF50X150S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF50X150S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø50mm bore and 150mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF50X150S
Ejector strokes, chute gates and sliding covers need reach, and the MARF50X150S supplies 150 mm of it while keeping its front flange integral to the rolled cover. This double-acting 50 mm cylinder delivers 981 N on extension and 881 N on retraction at 0.5 MPa, with variable cushions trimming both stops over a 0.15-1.0 MPa (22-145 psi) supply.
Vertically, 981 N equates to about 100 kg, so a 2:1 margin caps sensible lifts near 50 kg. Speeds from 30-800 mm/s stay smooth because each cushion needle tunes its end independently, and the stainless tube plus hard-chrome 16 mm rod survive outdoor and washdown duty. CMSG / DMSG / EMSG switches read position off the standard built-in magnet.
Airtac MARF Stainless Steel Mini Air Cylinder MARF50X150S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF50X150S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 mm |
| Acting type | Double acting + cushion (front mount) |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MARF50X150S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 50 | Bore size in mm. |
| ×150 | 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 MARF50X150S Is Used
Press die ejector
Kicking formed brackets clear of a stamping die after every stroke; 150 mm clears even deep-formed parts before the next blank feeds in.
Hopper slide gate
Sliding the discharge gate of a flour hopper on a bakery feed line; cushion needles seat the 981 N-driven gate without slamming the frame.
Cooling conveyor pusher
Pushing trays off a cooling conveyor into a stacking magazine; the long stroke spans two tray positions in a single extend cycle.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF50X150S the Right Cylinder?
For a 150 mm move, the 40 mm MARF version offers 628 N at 0.5 MPa if loads are light, and the 63 mm bore reaches 1558 N for heavy hopper gates - 981 N covers the span between them. Long strokes invite rod bending, so carry any side thrust on guided slides rather than on the chrome rod. Note that the cushion only softens the stroke ends; with air off, the piston drifts freely, so a rod lock is the fix for held positions. Mounting and magnet are both built in - nothing extra to order.
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 MARF50X150S FAQ
Expect 981 N on push and 881 N on pull at 0.5 MPa, 1374 N on push at 0.7 MPa, and a theoretical maximum of 200 kgf at 1.0 MPa. Supply air spans 0.15-1.0 MPa (22-145 psi) through 1/4" ports, the rod thread is M14x1.5, and travel runs at 30-800 mm/s.
It will not. Like any plain double-acting cylinder, the piston drifts when supply pressure is lost - the variable cushion softens the stroke ends but acts as no brake. If a raised cover or gate must stay put, add a rod lock to the package. Mounting needs nothing extra, because the front flange is integral to the front cover.
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