Airtac MARU Stainless Steel Mini Cylinder MARU50X400S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU50X400S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø50mm bore and 400mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke400 mm
- Port size1/4"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM14×1.5
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU50X400S
Reach 400 mm without moving up to a bulkier frame cylinder: the MARU50X400S pairs a 50 mm bore with the MAR series' top-mount front cover, double-acting operation and a two-end variable cushion. It pushes 981 N at 0.5 MPa and runs on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s.
AirTAC rolls the stainless barrel directly onto the aluminium covers, a riveted joint that survives humid plants and rinse-down zones better than painted or plain-aluminium minis. In lift terms 981 N is roughly 100 kg; apply a 2:1 safety margin and that becomes about 50 kg of vertical lifting. CMSG, DMSG and EMSG switches read the standard piston magnet straight off the shelf.
Airtac MARU Stainless Steel Mini Cylinder MARU50X400S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU50X400S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 400 mm |
| Acting type | Double acting + cushion (up mount) |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MARU50X400S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 50 | Bore size in mm. |
| ×400 | 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 MARU50X400S Is Used
Coating spray lance
Dip or withdraw a spray lance 400 mm into a tank or coating bath, the stainless barrel tolerating mist and washdown around the station.
Tray denester
Push nested trays off a 400 mm magazine stack one at a time at a bakery line infeed, cushioning each release for quiet cycling.
Light crimp head
Bring a crimp or marking head down over a long 400 mm approach, letting the adjustable cushion soften the final millimetres so the dies meet gently.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU50X400S the Right Cylinder?
Compare before committing: the 40 mm MAR yields 628 N at 0.5 MPa and the 63 mm yields 1558 N, so this 50 mm bore is the mid choice for 400 mm travel. Long rods are side-load sensitive - the 16 mm rod wants external guiding over this span, and the piston will not hold position if air pressure drops, so add a rod lock for that. The up bracket is already on the cylinder, I or Y knuckles thread onto M14x1.5, and no separate flange or foot belongs on this series.
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 MARU50X400S FAQ
Figures stay constant along the travel: 981 N push and 881 N pull at 0.5 MPa, climbing to 1374 N and 1233 N at 0.7 MPa, with about 200 kgf theoretical at 1.0 MPa. The 1/4" ports and M14x1.5 rod thread are fixed by the 50 mm bore.
All of the AirTAC mini switches fit: CMSG, DMSG and EMSG clamp onto the stainless barrel and read the magnet that AirTAC builds into every MA piston as standard, with no special-order option or extra charge involved.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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