Airtac MARU Stainless Steel Mini Cylinder MARU40X450S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU40X450S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 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 MARU40X450S
A 450 mm stroke puts the MARU40X450S near the top of the MAR range: a double-acting, round-body mini cylinder with a variable air cushion at both ends and an up-mount bracket rolled into the front cover. Nothing else bolts to the machine - no separate flange or foot is needed. Filtered air at 0.15-1.0 MPa (22-145 psi) drives the rod out and back anywhere from 30 to 800 mm/s.
At 0.5 MPa this 40 mm bore pushes 628 N and pulls 528 N; at 0.7 MPa the push rises to 880 N against a theoretical ceiling of 128.1 kgf. Work the numbers down and about 377 N of that push is a comfortable budget for real work, enough to lift roughly 32 kg vertically with a 2:1 margin. The stainless barrel and hard-chrome 16 mm rod shrug off washdown mist that swells painted-steel minis, and the piston magnet fitted as standard lets CMSG / DMSG / EMSG switches drop straight on.
Airtac MARU Stainless Steel Mini Cylinder MARU40X450S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU40X450S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 MARU40X450S
| 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. |
| ×450 | 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 MARU40X450S Is Used
Carton ejector on a case packer
The 450 mm travel clears a full case width from the infeed, with 628 N of push handling wet corrugated stacks at line speed.
Pallet stop gate on a roller conveyor
The up-mount bracket bolts the cylinder above the rail, and the cushioned stroke keeps the gate from slamming as pallets arrive.
Lift gate on a bottling rinse deck
About 32 kg of vertical capacity covers the gate leaf, and the stainless barrel survives constant water splash without flaking.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU40X450S the Right Cylinder?
Size down to the 32 mm MAR (402 N push at 0.5 MPa) if your load sits under about 240 N, or step up to the 50 mm bore (981 N) when the job needs near 590 N of usable work. A standard MAR cannot hold position on lost air - the rod drifts with the load - so pair a rod lock where a raised gate must stay up. Over 450 mm of stroke, keep side loads off the 16 mm rod by guiding the part or adding an external slide, and dial the cushion needle screws on first run before running above 300 mm/s. The U top-mount matches direct frame bolting, and I or Y rod knuckles still thread onto the M12x1.25 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 MARU40X450S FAQ
Bore 40 mm, stroke 450 mm, double acting with a variable cushion at both ends and an integrated up-mount. Push 628 N and pull 528 N at 0.5 MPa; push 880 N and pull 739 N at 0.7 MPa; theoretical maximum 128.1 kgf at 1.0 MPa. Rod 16 mm with M12x1.25 male thread, 1/8" ports, pressure 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s.
Yes. The round barrel is stainless steel and the 16 mm rod is hard-chrome plated to 20 um, so mild corrosion, coolant mist and outdoor damp do not eat the body the way they attack painted-steel minis. The aluminium covers are rolled onto the tube, and the two-way piston seal stores grease for long seal life.
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