Airtac MARF Stainless Steel Mini Air Cylinder MARF40X100S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF40X100S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke100 mm
- Port size1/8"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X100S
Where a 32 mm mini tops out near 402 N, this 40 mm bore MAR delivers 628 N of push and 528 N of pull at 0.5 MPa across a 100 mm stroke. That is enough to lift about 32 kg vertically after a 2:1 margin, or to run roughly 377 N of real work in continuous cycling. Both ends carry a variable air cushion, so faster speeds and heavier loads stop without hammering the aluminium-alloy covers.
The front flange is part of the rolling-packed body - stainless barrel, chrome-plated 16 mm rod, riveted covers - so the cylinder bolts straight onto a machine plate with no add-on bracket. Magnet is standard, ready for CMSG, DMSG or EMSG switches, and the whole assembly runs on 0.15-1.0 MPa (22-145 psi) of filtered air.
Airtac MARF Stainless Steel Mini Air Cylinder MARF40X100S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF40X100S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 mm |
| Acting type | Double acting + cushion (front mount) |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 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 MARF40X100S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange mounting. |
| 40 | 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.
Where the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X100S Is Used
Die ejector on a trim press
Knocks finished aluminium stampings clear of the die after each hit; 628 N at 0.5 MPa clears the part inside the press cycle.
Core-stack lift on a converting line
Raises stacks of paper cores weighing around 30 kg, comfortably inside the 32 kg vertical-lift margin for this bore.
Sorter diverter gate
Swings a chute gate to route parcels at a warehouse merge, with the cushion absorbing the gate's landing at full belt speed.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X100S the Right Cylinder?
Size against the neighbours: the 32 mm MAR offers 402 N at 0.5 MPa if the load is light, while the 50 mm bore doubles the muscle to 981 N. With 100 mm of exposed rod, watch side loads - a guiding bush or external slide keeps bending stress off the 16 mm rod. The piston will not stay put through an air drop; it simply settles, so specify a rod lock where parking under load matters, and lean on the standard magnet with CMSG, DMSG or EMSG switches for stroke confirmation.
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 MARF40X100S FAQ
At 0.5 MPa it delivers 628 N on extend and 528 N on retract; at 0.7 MPa, 880 N and 739 N. The theoretical maximum is 128 kgf at 1.0 MPa. Working near 377 N extends seal and rod life considerably.
Needle screws sit in both end covers. On first run, close them slightly and open out until the load lands without bounce - the variable cushion then soaks up the piston's kinetic energy at every stroke end across the 30-800 mm/s speed range.
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