Airtac MARF Stainless Steel Mini Air Cylinder MARF40X160S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF40X160S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke160 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 MARF40X160S
The longest stroke in this flange series at 160 mm on a 40 mm bore still returns the full 628 N push and 528 N pull at 0.5 MPa of the bore class. Air is admitted across 0.15-1.0 MPa (22-145 psi), and the variable cushion screws at each end let you soften a fast 160 mm run so loads decelerate instead of cracking against the covers.
Size the mechanics around 377 N of practical push at 0.5 MPa - about six tenths of the 628 N rating - or count on roughly 64 kg of vertical lift at full force, halving to 32 kg where a safety margin matters. Because the magnet is a standard fitting, CMSG, DMSG or EMSG switches read end positions straight off the stainless barrel.
Airtac MARF Stainless Steel Mini Air Cylinder MARF40X160S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF40X160S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 160 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 MARF40X160S
| 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. |
| ×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 MARF40X160S Is Used
Stretch fixture for cable pull testing
The 160 mm reach applies a controlled 628 N pull to cable terminations, with the cushion easing the return so samples are never shock-loaded.
Pallet gate on a dock leveler approach
Flange-bolted beside the ramp, the rod swings a safety gate across 160 mm of forklift approach path, position confirmed by an EMSG switch.
Carton kick-off from a case erector
A 160 mm kick pushes formed cartons onto the takeaway belt, using about 377 N of working force at 0.5 MPa with a cushioned landing at each end.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X160S the Right Cylinder?
This 40 mm bore lands between the 32 mm model (402 N push at 0.5 MPa) and the 50 mm model (981 N), so choose by load, not by stroke. Remember the rod will drift if air pressure drops - the cushion softens the ends of stroke only, and a separate rod lock is the answer when load holding is required.
Mounting needs no bracket purchase: the F front flange is rolled into the body itself. With 160 mm of exposed travel, keep the load externally guided so side loads stay off the 16 mm hard-chrome rod and its seals.
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 MARF40X160S FAQ
At 0.5 MPa: 628.3 N push, 527.8 N pull. At 0.7 MPa: 879.6 N push, 738.9 N pull. Theoretical maximum 128.1 kgf at 1.0 MPa. Port size is 1/8" for this 40 mm bore, rod 16 mm, male thread M12x1.25.
Yes - turn the needle screws at each end on first run to dial the deceleration to your load and speed (30-800 mm/s is the allowed band). Out of the box the cushions may be too stiff or too soft, and correct setting prevents cover hammering on a 160 mm stroke.
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