Airtac MARU Stainless Steel Mini Cylinder MARU20X275S
The AirTAC MARU Stainless Steel Mini Cylinder MARU20X275S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 275mm 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
- Stroke275 mm
- Port size1/8"
- Acting typeDouble acting + cushion (up mount)
- Rod threadM8×1.25
- 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 MARU Stainless Steel Mini Cylinder MARU20X275S
A 275 mm travel on a 20 mm bore makes the MARU20X275S a long-reach light pusher: 157 N forward and 131.9 N back at 0.5 MPa, 219.8 N forward once you raise supply to 0.7 MPa. The body is AirTAC's riveted MA construction - stainless round barrel, aluminium covers, chrome-plated 8 mm rod - with the top/up bracket integral to the front cover. Supply 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, cushion adjustable at both stroke ends.
The stainless tube tolerates washdown and humid air far better than painted minis, which suits food-adjacent and outdoor machines. Sensors are a fit-and-go job because the magnet ships inside the piston: clip a CMSG, DMSG or EMSG switch to the barrel for end-of-stroke signals.
Airtac MARU Stainless Steel Mini Cylinder MARU20X275S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X275S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 275 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 MARU20X275S
| 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. |
| ×275 | 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 (double rod, 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 MARU20X275S Is Used
Deposit head on a filling machine
Dips a filling nozzle into a bottle and retracts 275 mm clear of the star wheel; the lower cushion eases the nozzle in without splash.
Test-bench clamp stroke
Swings a clamp arm over a test coupon on a 275 mm reach; around 94 N of working force holds light components in place.
Label applicator pad advance
Drives a tamp pad down onto cartons moving past; cushioning at the bottom keeps the pad from bouncing on impact.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X275S the Right Cylinder?
Start here when 270-280 mm of reach meets a load under about 94 N of real work (60 percent of the 157 N push). Heavier duties belong to the 25 mm bore at 245 N or the 40 mm bore at 628 N, both 0.5 MPa figures. Long strokes amplify misalignment, so mount the U bracket on a machined flat and guide the load separately; the M8x1.25 rod thread accepts I or Y knuckles for swing motion. If the arm must stay put with air off, add a rod lock - this cylinder drifts on air loss. Ports are 1/8"; the magnet is standard.
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 MARU20X275S FAQ
At 0.5 MPa: 157 N push, 131.9 N pull. At 0.7 MPa: 219.8 N push, 184.7 N pull. Maximum theoretical force 32 kgf at 1.0 MPa. Bore 20 mm, stroke 275 mm, rod 8 mm with M8x1.25 thread, 1/8" air port, speed 30-800 mm/s.
Yes - the round stainless barrel and the hard-chrome plated rod are both corrosion-resistant, and the riveted aluminium covers keep the seal line tight. Unlike painted mini cylinders, the MAR keeps working through humidity, splash and routine hose-downs. The magnet is already inside, so CMSG/DMSG/EMSG position switches mount without options.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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