Airtac MARF Stainless Steel Mini Air Cylinder MARF40X450S
The AirTAC Airtac MARF Stainless Steel Mini Air Cylinder MARF40X450S is a genuine double acting + cushion (front 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 (front mount)
- Rod threadM12×1.25
- CushionVariable air cushion, both ends
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X450S
Nearly half a metre of travel in a 40 mm round-body mini: the MARF40X450S pushes 628 N and pulls 528 N at 0.5 MPa, and 880 N at 0.7 MPa, as a double-acting cylinder with tunable air cushions at each end. The front flange is rolled in as part of the cover, so it bolts directly to your machine plate with no separate foot to buy. A stainless barrel plus a hard-chrome 16 mm rod keep rust and washdown mist at bay.
Size real work at about 377 N of push at 0.5 MPa, equal to hoisting around 32 kg vertically with a 2:1 factor. The magnet built into the piston feeds CMSG, DMSG and EMSG switches along the full 450 mm, and cushion needles at both covers protect the stops at any speed within 30-800 mm/s and 0.15-1.0 MPa (22-145 psi).
Airtac MARF Stainless Steel Mini Air Cylinder MARF40X450S Technical Specifications
| Model | Airtac MARF Stainless Steel Mini Air Cylinder MARF40X450S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Acting type | Double acting + cushion (front 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 MARF Stainless Steel Mini Air Cylinder MARF40X450S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| F | Front-cover mount: F = front-flange 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 MARF Stainless Steel Mini Air Cylinder MARF40X450S Is Used
Conveyor zone clearing
A 450 mm pusher bar empties a full conveyor zone between packs in one pass, with variable cushions guarding both ends.
Hopper slide gate opening
Pull force of 527.8 N at 0.5 MPa opens slide gates on flour or feed hoppers across the full 450 mm travel.
Warehouse sorter diverting
Extends a divert arm that steers cartons between sortation lanes, the 16 mm hard-chrome rod handling continuous duty at up to 800 mm/s.
Is the Airtac MARF Stainless Steel Mini Air Cylinder MARF40X450S the Right Cylinder?
Long strokes magnify side loads, so guide the 16 mm rod externally or support overhung tooling instead of letting the front bushing take the bending. Compare the 32 mm MAR at 402 N push (0.5 MPa) for lighter duties or the 50 mm MAR at 981 N when you need close to double. Remember the piston drifts when supply pressure is lost, so add a rod lock for held positions, and rely on the integrated F flange plus standard magnet to simplify mounting and sensing.
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 MARF Stainless Steel Mini Air Cylinder MARF40X450S FAQ
At 0.5 MPa supply it extends with 628.3 N and retracts with 527.8 N; at 0.7 MPa those are 879.6 N and 738.9 N, and the theoretical maximum reaches 128.1 kgf at 1.0 MPa. The cylinder is 40 mm bore, 450 mm stroke, 16 mm rod with M12x1.25 male thread, 1/8" ports, and runs 30-800 mm/s on 0.15-1.0 MPa (22-145 psi) air.
Yes, for damp and washdown-adjacent spots: the barrel is stainless steel and the 16 mm rod carries 20 um of hard chrome, so mild corrosion and mist are not a problem, though the aluminium covers should not sit in standing liquid. Feed it air filtered to 40 um and keep ambient between -20 and +70 C.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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