Airtac MARU Stainless Steel Mini Cylinder MARU20X430S
The AirTAC Airtac MARU Stainless Steel Mini Cylinder MARU20X430S is a genuine double acting + cushion (up mount) standard round-body mini air cylinder with a Ø20mm bore and 430mm 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
- Stroke430 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 MARU20X430S
Reach matters here: 430 mm of cushioned, double-acting travel on a 20 mm bore, driven by 157 N of push and 131.9 N of pull at 0.5 MPa. AirTAC builds the MAR around an integrated U-type up/top front bracket, so there is no loose flange to align - the rolled stainless barrel and aluminium covers arrive ready to bolt on.
Dial the needle screws at both stroke ends on first run and the variable cushion will absorb the shock of faster cycles within the 30-800 mm/s band. In practical terms the 157 N rating supports about 94 N of real 0.5 MPa work, equivalent to hoisting roughly 8 kg vertically once you halve the 16 kg theoretical figure for a 2:1 margin. Proof pressure is 1.5 MPa (215 psi); operating window 0.15-1.0 MPa (22-145 psi).
Airtac MARU Stainless Steel Mini Cylinder MARU20X430S Technical Specifications
| Model | Airtac MARU Stainless Steel Mini Cylinder MARU20X430S |
|---|---|
| Series | MAR mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 430 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 MARU20X430S
| 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. |
| ×430 | 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 MARU20X430S Is Used
Pallet stop on a cross-transfer conveyor
The 430 mm reach lifts a stop blade across two roller lanes, and the variable cushion keeps the cycle quiet even at 300 mm/s.
Gate actuator on a grain-auger diverter
Switching flow between two augers needs long, positive travel; 157 N at 0.5 MPa moves a light gate and the riveted stainless body handles grain dust and hose-downs.
Sliding door on a commercial bread proofer
Push a 430 mm door open for rack access; about 8 kg of vertical-equivalent capacity covers the door weight with margin, and EMSG switches report the open state.
Is the Airtac MARU Stainless Steel Mini Cylinder MARU20X430S the Right Cylinder?
430 mm of stroke on an 8 mm rod means the rod will flex if you let the load cantilever; support the part on external guides and connect through a floating joint or an I / Y knuckle on the M8x1.25 male thread. Force-wise the 20 mm bore is the entry point of the MAR range - for heavier duty move to 25 mm (245.3 N push at 0.5 MPa) or 32 mm (402.2 N), both with the same integrated-bracket concept. Because the piston is pressure-driven only, any load that must stay parked on air loss needs a rod lock; the cushion tames shock, it never locks position.
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 MARU20X430S FAQ
Push is 157 N and pull 131.9 N at 0.5 MPa; at 0.7 MPa it reaches 219.8 N push and 184.7 N pull, topping out at 32 kgf theoretical at 1.0 MPa. The bore is 20 mm, rod 8 mm, port size 1/8".
The rolled stainless-steel barrel and hard-chrome plated carbon-steel rod are far more corrosion-tolerant than painted or plain aluminium minis, so splash zones and humid food-area air sit well within its comfort range; for constant immersion in aggressive detergents, confirm compatibility from the datasheet.
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