Airtac MARF Stainless Steel Mini Air Cylinder MARF40X350S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF40X350S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø40mm bore and 350mm 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
- Stroke350 mm
- Port size1/8"
- Acting typeDouble acting + cushion (front mount)
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X350S
Stretch the MAR platform to 350 mm and you keep the bore 40 output - 628.3 N extend, 527.8 N retract at 0.5 MPa - over a long, smoothly damped travel. The unit is double acting, cushioned variably at both ends, and mounts through its own rolled-on front flange rather than any bolt-on foot. Supply 0.15-1.0 MPa (22-145 psi) air filtered to 40 um for speeds of 30-800 mm/s.
Washdown-ready hardware: stainless barrel, hard-chrome plated 16 mm rod, aluminium covers packed onto the tube by rolling for a sealed round body. Over a 350 mm stroke, vertical duty equates to about 32 kg lifted with a 2:1 margin, and routine cycle loads should stay near 377 N of push. Standard piston magnet means CMSG / DMSG / EMSG switches report position along the full travel.
Airtac MARF Stainless Steel Mini Air Cylinder MARF40X350S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF40X350S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 MARF40X350S
| 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. |
| ×350 | 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 MARF40X350S Is Used
Telescoping door on a paint booth
350 mm slides a booth access door fully open; stainless surfaces tolerate overspray-laden air and the cushion eases the door shut.
Fork positioning on an AGV mast
The front flange anchors the fork-shift slide; 628 N at 0.5 MPa shifts pallet forks laterally across the full 350 mm against rail friction.
Press-off ejector in a die-cast cell
A 350 mm run ejects cooled housings from a trim press nest; the stroke clears deep nests while retaining margin for castings near 32 kg.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X350S the Right Cylinder?
Compare before you commit: bore 32 MAR pushes 402.2 N at 0.5 MPa and bore 50 makes 981.3 N; this 40 mm flange model lands between them at 628.3 N. Long strokes demand straight pulling: bracket the load on an external guide so the chrome rod never sees side force, and fit a rod lock if the load must stay put on air failure, since the cushion neither locks nor holds. Specify PT, G or NPT at the 1/8" port; the magnet is already in the piston.
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 MARF40X350S FAQ
At 0.5 MPa: 628.3 N extend, 527.8 N retract. At 0.7 MPa: 879.6 N extend, 738.9 N retract. Theoretical peak 128.1 kgf at 1.0 MPa. It runs on air filtered to 40 um at 0.15-1.0 MPa (22-145 psi), proof tested to 1.5 MPa (215 psi), speeds 30-800 mm/s, from -20 to +70 C.
Yes - needle screws at each end cap adjust the variable air cushion independently, so a heavy guided load arrives gently at both ends even at higher speeds within the 30-800 mm/s band. Remember the cushion only dampens the final travel; it does not lock the piston, which will drift if air pressure is lost.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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