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AirTAC MAR Series · Mini Cylinder

Airtac MARU Stainless Steel Mini Cylinder MARU50X350S

The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU50X350S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø50mm bore and 350mm 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
  • Stroke350 mm
  • Port size1/4"
  • Acting typeDouble acting + cushion (up mount)
  • Rod threadM14×1.5
  • CushionVariable air cushion, both ends
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About the Airtac MARU Stainless Steel Mini Cylinder MARU50X350S

Long-travel work is where the MARU50X350S earns its place: a 50 mm double-acting MAR cylinder with 350 mm of stroke, the up-mount flange formed into the front cover, and a 30-800 mm/s speed band. Fed 0.15-1.0 MPa (22-145 psi), it produces 981 N of push and 881 N of pull at 0.5 MPa.

Its stainless round barrel shrugs off condensation and mild washdown that would blister a painted mini, while the 20 um hard-chrome plating keeps the rod's sealing surfaces smooth across the full 350 mm sweep. If you budget 60 percent of the rating, you can plan on about 590 N of real work at 0.5 MPa. The magnet comes fitted as standard, so DMSG or EMSG switches drop on for mid-stroke and end-position feedback.

Airtac MARU Stainless Steel Mini Cylinder MARU50X350S Technical Specifications

ModelAirtac MARU Stainless Steel Mini Cylinder MARU50X350S
SeriesMAR mini cylinder
Bore sizeØ50 mm
Stroke350 mm
Acting typeDouble acting + cushion (up mount)
Port size1/4"
Rod threadM14×1.5
FluidAir (filtered by 40µm element)
Operating pressure0.15 – 1.0 MPa
Proof pressure1.5 MPa
Temperature-20 to +70 °C
Speed range30 – 800 mm/s
CushionVariable air cushion, both ends
Max standard strokeUp 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)

PressurePush forcePull force
0.5 MPa982 N881 N
0.7 MPa1374 N1234 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 MARU50X350S

MARStandard round-body mini cylinder (double-acting, integrated mount, variable cushion).
UFront-cover mount: U = up (top) mounting.
50Bore size in mm.
×350Stroke length in mm.
-SBuilt-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 MARU50X350S Is Used

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Guard door drive

Slide a 350 mm machine-guard door open and closed on a packaging line, with cushioned stops protecting the 981 N drive at each end.

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Deep-die ejector

Kick formed parts out of a deep draw die where the ejector plate must travel the full 350 mm before it makes contact.

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Cross-transfer pusher

Push cartons across a wide transfer table between two conveyor lanes, sized on roughly 590 N of usable push at 0.5 MPa.

Is the Airtac MARU Stainless Steel Mini Cylinder MARU50X350S the Right Cylinder?

Size check: a 40 mm bore gives 628 N at 0.5 MPa and a 63 mm bore gives 1558 N, so the 50 mm bore sits between them for this 350 mm travel. Over a stroke this long, keep side loads off the 16 mm rod - guide the load externally or the rod will bend. With air removed the piston floats freely; a rod lock is the fix if the load must hold mid-travel. The integrated top bracket needs no LB foot or separate flange, and I or Y knuckles fit the M14x1.5 thread.

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)
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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 MARU50X350S FAQ

Force stays 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 suit all 50 mm bores.

It holds nothing on its own - cut the air and the 16 mm rod drifts with the load, so fit a rod lock where position must persist. It also carries no internal side-load guide; align the load on the M14x1.5 thread and support it externally over the 350 mm travel. The needle-screw cushion only softens the last few millimetres at each end.

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Standard models are processed and dispatched in 3-5 business days.

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Related AirTAC MAR Cylinders

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