Airtac MAC Stainless Steel Mini Air Cylinder MAC20X430SCM
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X430SCM is a genuine double acting + cushion 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
- Rod threadM8×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X430SCM
Long reach in a slim body: the MAC20X430SCM turns a 20 mm bore into 430 mm of travel inside a riveted stainless barrel with a hard-chrome plated 8 mm rod, a combination that shrugs off the damp and mild chemicals that ruin painted-steel mini cylinders. Air works both directions of the stroke - it is double acting - and adjustable air cushions at each end can be dialled so fast, heavy cycles land softly instead of cracking the covers.
The 0.5 MPa numbers to size by are 157 N push and 132 N pull; treat about 94 N of the push as your honest working budget. In lifting terms that force balances roughly 16 kgf, or about 8 kg of vertical lift once you keep a 2:1 margin. Every cylinder ships with its magnet already fitted, so DMSG or EMSG switches drop on for end-of-stroke sensing without a special piston.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X430SCM Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X430SCM |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 430 mm |
| Acting type | Double acting + cushion |
| 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 MAC Stainless Steel Mini Air Cylinder MAC20X430SCM
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×430 | Stroke length in mm. |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
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 MAC Stainless Steel Mini Air Cylinder MAC20X430SCM Is Used
Battery-bay door actuator on an AGV
Swings the service door of a robot battery bay fully open; the 430 mm travel matches a wide hinge swing and the cushion stops the door cracking against its stop.
Test-fixture lid raiser
Lifts a 6 kg aluminium fixture lid in an electronics test cell, comfortably inside the 8 kg vertical figure that the 157 N push supports with margin.
Feed-mill sampler arm
Pushes a sampling scoop into a grain spout on a cycle; the hard-chrome rod and stainless tube handle grain dust and humidity, with magnet switches marking each scoop position.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X430SCM the Right Cylinder?
Compare both neighbours before committing: the 16 mm bore manages 100.5 N at 0.5 MPa for lighter gates, while the 25 mm bore reaches 245.3 N when the load grows. The CM round-end rear cover mounts straight through a panel or bracket, and FA flange or SDB pivot accessories bolt on if the frame needs them. Remember this cylinder holds nothing once air is removed - the piston sits wherever the load pushes it - so specify a rod lock or pilot check valve for any clamped or held position. Over a 430 mm stroke, guide the load externally; lateral load on the extended 8 mm rod is the fastest way to bend it.
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 MAC Stainless Steel Mini Air Cylinder MAC20X430SCM FAQ
Push is 157 N and pull 132 N at 0.5 MPa; at 0.7 MPa these rise to 220 N push and 185 N pull, and the theoretical maximum is 32 kgf at 1.0 MPa. Pressure range 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, air filtered to 40 um, port 1/8 in.
The magnet is fitted as standard equipment, not an option, so AirTAC's CMSG, DMSG and EMSG switches all clamp directly onto the barrel anywhere along the 430 mm stroke - no special-order piston or retrofit magnet required.
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