Airtac MAC Stainless Steel Mini Air Cylinder MAC20X90SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X90SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 90mm 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
- Stroke90 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 MAC20X90SCA
With 90 mm of stroke on a 20 mm stainless barrel, the MAC20X90SCA reaches a little deeper than the standard 85 mm class while keeping the same build philosophy: riveted aluminium covers, a hard-chrome plated rod and double-acting power with adjustable air cushions at both ends. Push is 157 N and pull 131.9 N at 0.5 MPa.
Air, not springs, moves the rod both ways, so force is symmetrical and predictable. At 90 mm stroke, keep side loads off the rod - a guide or cam track protects the bushing on long runs. Realistic output sits near 94 N at 0.5 MPa, roughly an 8 kg vertical lift with a 2:1 factor. The CA pivot back cover handles swinging linkages, and the factory-fitted magnet accepts CMSG, DMSG or EMSG switches out of the box.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X90SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X90SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 90 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 MAC20X90SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×90 | 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 MAC20X90SCA Is Used
Case ejector at 90 mm
Punches full cases off a carton conveyor into a laneway, with the cushion absorbing the case's momentum.
Robot gripper extender
Extends a pick arm 90 mm into a CNC fixture before the gripper closes, the pivot mount tracking the swing.
Presence-check probe
Dips a probe into a paint tote to confirm level; a CMSG switch signals full extension each cycle.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X90SCA the Right Cylinder?
For lighter tasks the 16 mm bore gives 100.5 N of push at 0.5 MPa; when the application outgrows 157 N, the 25 mm bore at 245.3 N is the next step. Remember this cylinder offers no position holding: a centred valve or lost air means the rod drifts, so fit a pilot check valve or rod lock where parking matters. Mount via the CA pivot cover or add FA flange, LB foot and SDB pivot brackets; PT, G and NPT ports are all orderable.
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 MAC20X90SCA FAQ
Double acting with variable air cushion at both ends; 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, 32 kgf theoretical peak at 1.0 MPa. Operating pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi), speed 30-800 mm/s, -20 to +70 C, 1/8" ports, 8 mm rod with M8x1.25 thread, 90 mm stroke.
Keep them minimal. A long 90 mm stroke multiplies any lateral force into rod and bushing wear, so guide the load externally with a rail, cam or bearing block and let the cylinder see pure thrust. Within that, the hard-chrome plated 8 mm rod cycles reliably from 30 to 800 mm/s.
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