Airtac MARU Stainless Steel Mini Cylinder MARU20X450S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X450S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm 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.
- BoreØ20 mm
- Stroke450 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MARU Stainless Steel Mini Cylinder MARU20X450S
Of the standard MAR strokes this one sits near the ceiling: 450 mm on a 20 mm bore, still pushing 157 N and pulling 131.9 N at 0.5 MPa. The MARU20X450S is double acting with variable air cushions at both ends, and its front cover integrates the U-type top mount - one riveted stainless assembly instead of a cylinder plus loose brackets.
For sizing, the 157 N rating converts to about 16 kg of theoretical vertical lift; keep a 2:1 margin and you can honestly say it lifts about 8 kg, or plan on 94 N of lateral work. The magnet is standard, letting CMSG / DMSG / EMSG switches track the rod anywhere along 450 mm of travel. Operating window: 0.15-1.0 MPa (22-145 psi), -20 to +70 C, speed 30-800 mm/s.
Airtac MARU Stainless Steel Mini Cylinder MARU20X450S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X450S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 450 mm |
| Acting type | Double acting + cushion (up mount) |
| Port size | 1/8" |
| Rod thread | M8×1.25 |
| 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 (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | 185 N |
| Max (@1.0 MPa) | 32 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 MARU20X450S
| MAR | Standard round-body mini cylinder (double-acting, integrated mount, variable cushion). |
|---|---|
| U | Front-cover mount: U = up (top) mounting. |
| 20 | 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 MARU20X450S Is Used
Reject pusher on a checkweigher line
Underweight packs get flicked off the belt with 157 N at 0.5 MPa, and the standard magnet plus a CMSG switch give the PLC a reject-confirmed signal.
Gate on a dairy CIP rinse station
450 mm slides a rinse gate across a tank throat, and the stainless round barrel with chrome-plated rod stands up to daily caustic washdown.
Rotating-arm feeder on a CNC bar magazine
The long stroke indexes the arm between bar-feed and stock positions, with the cushion damping the 450 mm swing at up to 800 mm/s.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X450S the Right Cylinder?
At 450 mm you are close to the 500 mm standard-stroke ceiling for this bore, and anything longer becomes a made-to-order build. Guide the load externally over such a span - the 8 mm hard-chrome rod is not meant to carry side loads - and pick an I or Y knuckle if the trajectory is not perfectly linear. If 157 N at 0.5 MPa is marginal, the 25 mm bore (245.3 N push / 206.1 N pull) is the nearest step up. Mounting is self-contained in the U-type bracket and the standard magnet accepts CMSG / DMSG / EMSG switches; just remember the rod floats when pressure is gone, so a rod lock - not this cylinder - holds a parked load.
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 MARU20X450S FAQ
Yes: 157 N push and 131.9 N pull at 0.5 MPa, 219.8 N push and 184.7 N pull at 0.7 MPa, and 32 kgf theoretical maximum at 1.0 MPa. Bore 20 mm, 8 mm rod, M8x1.25 male thread, 1/8" ports.
The front cover carries an integrated U-type top bracket, so the body bolts directly to your frame - no separate foot or flange accessory is used on MAR cylinders, and I or Y knuckles can still be fitted to the rod if the motion needs it.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac MARU Stainless Steel Mini Cylinder MARU20X450S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.