Airtac MAC Stainless Steel Mini Air Cylinder MAC20X135SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X135SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 135mm 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
- Stroke135 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 MAC20X135SCA
A cushioned, round-body mini cylinder from AirTAC's MA family, the MAC20X135SCA is double acting - air drives the rod out and pulls it back - with a variable air cushion at each end. Over a 135 mm stroke it pushes 157 N and pulls 131.9 N at 0.5 MPa, stepping up to 219.8 N at 0.7 MPa. The stainless barrel and hard-chrome plated rod shrug off the splash and mild corrosion that ruin painted mini cylinders, so it holds up in damp food or packaging corners.
The CA pivot back cover matters here: the rod-side eyelet swings freely, so a lever or gate that arcs through its travel connects without a separate knuckle. The cushion screws let you bleed off end-of-stroke shock, and at 157 N this bore 20 unit lifts about 8 kg vertically once the theoretical 16 kg figure is halved for a 2:1 margin. A magnet is built in as standard, so CMSG, DMSG or EMSG switches clip straight on.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X135SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X135SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 135 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 MAC20X135SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×135 | 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 MAC20X135SCA Is Used
Sorting gate flipper
A swing gate on a parcel sorter's divert lane flips packages between lanes; the CA pivot eyelet links to the gate arm as it arcs through 135 mm of travel.
Carton push-off
On a secondary packaging line, the 157 N push at 0.5 MPa slides a folded carton off a powered belt into a collecting chute at the end of the 135 mm stroke.
Glue head lift
Raises a hot-melt glue applicator head onto a box seam between cycles, with the air cushion easing the head down at both ends of travel.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X135SCA the Right Cylinder?
Compare against neighbours before ordering: a bore 16 MAC gives 100.5 N push at 0.5 MPa - enough for light gates - while stepping up to bore 25 raises the figure to 245.3 N for heavier clamps. If the load must stay put with the valve centred, remember this cylinder drifts when air is lost; add a pilot check valve or rod lock. Air supply runs 0.15-1.0 MPa (22-145 psi), the fluid must be filtered to 40 um, and the 1/8 inch ports sit in the end cover.
The ordering code breaks down as MAC20X135SCA: 20 mm bore, 135 mm stroke, S for the standard magnet, CA pivot back cover, PT thread with G or NPT (T) on request.
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 MAC20X135SCA FAQ
At 0.5 MPa this bore 20 cylinder pushes 157 N and pulls 131.9 N; at 0.7 MPa that rises to 219.8 N push and 184.7 N pull. The theoretical maximum is 32 kgf at 1.0 MPa. The 135 mm stroke is within the 500 mm standard limit for this bore, with 1/8" ports in the end cover.
Both ends carry a variable air cushion: needle screws throttle the last part of travel, so end-of-stroke shock is bled off instead of absorbed by external stops. Loosen them fully on first start-up, then close gradually. Cycle speed range is 30-800 mm/s.
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