Airtac MARF Stainless Steel Mini Air Cylinder MARF40X500S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF40X500S is a genuine double acting + cushion (front mount) standard round-body mini air cylinder with a Ø40mm bore and 500mm 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
- Stroke500 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 MARF40X500S
Long travel is the brief here: a 40 mm bore delivering 500 mm of double-acting stroke, with an adjustable air cushion at both ends and a front-flange bracket rolled into the front cover as part of AirTAC's riveted MA construction. The stainless-steel barrel, aluminium-alloy covers and stainless block form one sealed rounded body, so there is no separate flange to buy.
At 0.5 MPa (73 psi) the piston turns supply into 628 N of push and 528 N of pull, climbing to 880 N of push at 0.7 MPa. Count on about 377 N as the continuous working figure - 628 N equates to roughly 64 kgf, so with a 2:1 margin you can lift about 32 kg vertically. The hard-chrome plated 16 mm rod and stainless barrel handle washdown and humid air that would corrode painted minis, and the piston magnet is standard, ready for CMSG, DMSG or EMSG switches.
Airtac MARF Stainless Steel Mini Air Cylinder MARF40X500S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF40X500S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 MARF40X500S
| 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. |
| ×500 | 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 MARF40X500S Is Used
Bakery tray pusher
Pushes hot baking trays sideways off a tunnel oven conveyor across the full 500 mm stroke; 628 N of push at 0.5 MPa clears loaded trays without impact thanks to the end cushions.
Parts washer basket lift
Raises a wash basket of machined housings about 500 mm per cycle - roughly 32 kg is a sensible vertical load at a 2:1 margin. The stainless barrel shrugs off washer mist.
Recycling sorter gate
Drives a divert gate on a conveyor sorting line, with CMSG switches confirming gate position and the front flange bolting straight to the side frame.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X500S the Right Cylinder?
This is the longest standard stroke available in the 40 mm MAR frame, so treat rod strength seriously: guide the load externally, keep side loads off the 16 mm rod, and prefer external rails for vertical use. If 628 N of push at 0.5 MPa feels marginal, the 50 mm bore in the same round body reaches 981 N; a 32 mm bore (402 N push) handles lighter duty. Supply pressure spans 0.15-1.0 MPa (22-145 psi).
The integrated front-flange bracket means no separate flange plate or foot to order - the cover itself bolts to the frame. Remember a standard MAR will not hold position if air is lost; the rod simply drifts, so add a rod lock where the load must stay put. The standard magnet lets CMSG or DMSG switches track position along all 500 mm.
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 MARF40X500S FAQ
At 0.5 MPa the 40 mm piston delivers 628.3 N pushing and 527.8 N pulling; at 0.7 MPa that becomes 879.6 N push and 738.9 N pull. The theoretical ceiling is 128.1 kgf at 1.0 MPa. Air supply runs 0.15-1.0 MPa (22-145 psi) through the 1/8" port, and the M12x1.25 male rod thread carries the load.
Needle screws at each end meter exhaust to build a variable air cushion, so you can tune end-of-stroke deceleration for heavy loads or runs up to 800 mm/s - set them on first commissioning. The cushion only softens the stroke ends; if supply air is lost the rod drifts, so add a rod lock where the 500 mm position must hold.
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