Airtac MARU Stainless Steel Mini Cylinder MARU40X200S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU40X200S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø40mm bore and 200mm 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
- Stroke200 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 MARU40X200S
With 200 mm of travel and 628 N of push at 0.5 MPa, this 40 mm bore MAR cylinder suits mid-stroke clamping, ejecting and lifting jobs where a short mini would run out of reach. The U (up/top) bracket is rolled into the front cover itself, so the cylinder bolts straight onto the machine frame without a bolt-on flange or foot, and it runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-800 mm/s.
Divide the 628 N push by gravity and the bore supports about 64 kg; keep a 2:1 margin and you can plan on roughly 32 kg of vertical lift. Construction is a stainless-steel round barrel with aluminium covers riveted on and a hard-chrome plated rod, a body that tolerates damp food plants and outdoor air better than painted minis. Because the piston drifts if air is lost, add a rod lock where held positions matter, and tune the variable cushion needles on first run so faster cycles do not hammer the covers. A built-in magnet is standard, working with CMSG / DMSG / EMSG switches.
Airtac MARU Stainless Steel Mini Cylinder MARU40X200S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU40X200S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 MARU40X200S
| 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. |
| ×200 | 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 MARU40X200S Is Used
Bottling-line divert gate
A 200 mm swing gate on a bottling conveyor diverts bottles between lanes; the cushioned stroke stops the gate without slamming at 30-800 mm/s cycle speeds.
CNC lathe guard door
The U bracket bolts the cylinder above a lathe's sliding guard, pushing the 200 mm door open each cycle while CMSG switches confirm full-open to the PLC.
Automotive weld fixture clamp
In a body-shop welding fixture, 628 N at 0.5 MPa clamps sheet panels while the variable cushion protects the fixture from shock at every close.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU40X200S the Right Cylinder?
Step down to a 32 mm bore (402 N push at 0.5 MPa) for lighter loads, or up to a 50 mm bore (981 N) when the job needs nearly double; the 40 mm bore's 628 N sits between them at a 1/8" port size. An unpowered MAR cannot hold a load - the cushion only softens the stroke end - so pick a rod lock version when position must be kept. The built-in magnet works with CMSG / DMSG / EMSG switches, and the U bracket means no separate flange or foot to buy. With 200 mm of stroke, avoid side loads or guide the part externally to protect the 16 mm rod.
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 MARU40X200S FAQ
Rated figures for the MARU40X200S: 628.3 N push and 527.8 N pull at 0.5 MPa, rising to 879.6 N push at 0.7 MPa, with a theoretical peak of 128.1 kgf at 1.0 MPa. It is double acting, cushioned at both ends, fed through 1/8" ports, and the 16 mm rod carries an M12x1.25 male thread. Standard strokes run to 500 mm for this bore.
The barrel is stainless steel, the 16 mm rod is hard-chrome plated carbon steel, and the aluminium covers are rolled on to seal the body. That combination shrugs off splashes, humidity and mild detergents far better than painted-steel mini cylinders, which is why it suits damp food and outdoor locations.
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