Airtac MARU Stainless Steel Mini Cylinder MARU40X500S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU40X500S is a genuine double acting + cushion (up 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 (up mount)
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU40X500S
Maximum standard travel for this bore is 500 mm, and the MARU40X500S uses every millimetre: a double-acting round-body cylinder with a variable cushion at each end and a top-mount bracket rolled into the front cover, so no separate flange or foot hardware enters the build. Filtered air at 0.15-1.0 MPa (22-145 psi) cycles the rod anywhere between 30 and 800 mm/s.
Force at the rod reaches 628 N pushing and 528 N pulling at 0.5 MPa, or 880 N pushing at 0.7 MPa, with a 128.1 kgf theoretical ceiling. In practice, plan around 377 N of working push - enough to raise a 32 kg load vertically with a 2:1 margin. The riveted stainless tube and 16 mm hard-chrome rod tolerate washdown mist that ruins painted minis, and the piston magnet that ships as standard accepts CMSG / DMSG / EMSG switches anywhere along the barrel.
Airtac MARU Stainless Steel Mini Cylinder MARU40X500S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU40X500S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 mm |
| Acting type | Double acting + cushion (up 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 MARU Stainless Steel Mini Cylinder MARU40X500S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) 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 MARU Stainless Steel Mini Cylinder MARU40X500S Is Used
Sliding guard door on a CNC lathe
Full 500 mm travel covers the enclosure opening, and the variable cushion stops the door softly at each end of every cycle.
Layer pusher on a palletizer
The top-mount seats on the pusher plate bracket, and 880 N of push at 0.7 MPa squares full carton layers across the table.
Bin diverter above a sorting chute
Roughly 32 kg of vertical lift capacity swings the chute flap, while a DMSG switch on the barrel confirms the diverter position.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU40X500S the Right Cylinder?
Compare before ordering: the 32 mm MAR pushes 402 N at 0.5 MPa and covers loads to roughly 240 N, while a 50 mm bore reaches 981 N for jobs needing near 590 N of working force; this 40 mm unit at 628 N is the middle path. On air failure the rod free-drifts - MAR has no internal lock - so spec a rod lock variant when a raised door must stay put. A full 500 mm stroke punishes side load: guide the payload externally and set both cushion needles on commissioning. The integrated top bracket plus the standard magnet (CMSG / DMSG / EMSG ready) usually removes the last accessory from the bill.
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 MARU Stainless Steel Mini Cylinder MARU40X500S FAQ
Stroke 500 mm on a 40 mm bore, double acting with variable cushioning at both ends and an up-mount built into the front cover. At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa, 880 N push and 739 N pull; theoretical peak 128.1 kgf at 1.0 MPa. Rod 16 mm, thread M12x1.25, ports 1/8", pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Needle screws at each end meter the last air out of the stroke, so a fast door or layer decelerates over the final millimetres instead of hammering the covers. Adjust them on first run: close slightly for heavier loads, open for light ones. The cushion softens the stroke end only - it is not a brake, and the rod will still drift if air is lost.
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