Airtac MAC Stainless Steel Mini Air Cylinder MAC20X290SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X290SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 290mm 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
- Stroke290 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 MAC20X290SCA
290 mm of travel from a 20 mm stainless barrel - the MAC20X290SCA spans light-duty push-and-pull jobs in one body, rated 157 N push and 131.9 N pull at 0.5 MPa. Air drives the rod both directions (double acting) and bleed screws at each end let you bring the variable cushion in slowly until end-of-stroke knock is gone, even at the top of the 30-800 mm/s speed range. Round stainless tube, riveted aluminium covers, an 8 mm rod hard-chrome plated to 20 um: it stays sealed and smooth in damp workshops and semi-outdoor cells.
Sensing comes free of paperwork - the magnet is fitted as standard, so CMSG, DMSG or EMSG switches drop onto the barrel without ordering a special piston. Lifting? The 157 N push works out near 16 kgf; allow a 2:1 margin and plan on raising about 8 kg vertically per cylinder.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X290SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X290SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 290 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 MAC20X290SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×290 | 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 MAC20X290SCA Is Used
Curing oven drawer
Draws a tray of parts out of a benchtop curing oven; the pivot cover suits a link-arm mount and 290 mm clears the door line.
Sortation gate arm
Swings a sorting gate between two lanes on a small e-commerce sorter, twin cushions landing the arm quietly each cycle.
Press part ejector
Ejects finished brackets from a bending die at the end of each stroke, with a CMSG switch confirming full extension.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X290SCA the Right Cylinder?
Compare before you commit: bore 16 pushes 100.5 N at 0.5 MPa for lighter gates, bore 25 pushes 245.3 N when the load outgrows 150 N of continuous work. The cylinder holds nothing on its own - centre the valve and the rod floats - so specify a rod lock or pilot check valve wherever a stopped load must wait in place. Its CA pivot back cover is made for linkages and yokes; add the SDB pivot bracket, or switch to FA / LB hardware for a rigid frame. At 290 mm the rod is long relative to its 8 mm diameter, so guide the load in linear bearings and keep thrust axial.
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 MAC20X290SCA FAQ
No. It is a plain double-acting cylinder with a variable air cushion - the cushion softens arrival but is not a brake. If the valve centres or supply fails, the rod drifts under load. For held positions, fit a rod lock cylinder or add a pilot check valve in the line, and consider a CMSG / DMSG / EMSG switch on the standard magnet to signal actual rod position.
Push 157 N and pull 131.9 N at 0.5 MPa; push 219.8 N and pull 184.7 N at 0.7 MPa; theoretical maximum 32 kgf at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), proof pressure 1.5 MPa (215 psi), speed 30-800 mm/s, temperature -20 to +70 C, air filtered to 40 um, port size 1/8 inch, rod thread M8x1.25.
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