Airtac MAC Stainless Steel Mini Air Cylinder MAC20X300SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X300SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 300mm 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
- Stroke300 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 MAC20X300SCA
The MAC20X300SCA pairs a 20 mm stainless round barrel with a 300 mm stroke and a CA pivot back cover, so the rod can swing through an arc as it extends. Double acting with a variable air cushion at both ends, it pushes 157 N and pulls 131.9 N at 0.5 MPa, climbing to 219.8 N at 0.7 MPa (32 kgf theoretical peak). A riveted body with a hard-chrome plated rod shrugs off washdown and damp shop air - a real edge over painted mini cylinders.
Plan on roughly 94 N of usable push at 0.5 MPa, about 60 percent of rating, which lifts around 8 kg vertically with a 2:1 margin (16 kg at full pressure). Every unit ships with a built-in magnet, so CMSG, DMSG or EMSG switches clamp straight onto the barrel. Run it on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s, and back the cushion needles off before the first stroke.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X300SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X300SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 300 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 MAC20X300SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×300 | 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 MAC20X300SCA Is Used
Flip gate on a bottling line
A pivot-mounted diverter arm swings containers onto a reject lane; the 300 mm stroke clears a wide chute and the 157 N push at 0.5 MPa moves filled PET bottles with margin.
Push-off on a small conveyor
Bolts beside the belt to kick misprinted cartons off the line; the variable cushion stops the 8 kg-class payload slamming the end plate at speed.
Lid lift on a lab sterilizer
The CA pivot eye drives a hinged stainless lid through a 300 mm arc; the corrosion-resistant barrel tolerates steam-heavy air and repeated wipe-downs.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X300SCA the Right Cylinder?
Size it against the 16 mm bore (100.5 N push at 0.5 MPa) and the 25 mm bore (245.3 N) to bracket the duty. Because air feeds both chambers, the rod drifts when the valve centres or supply drops - fit a pilot check valve or rod lock if a position must be held. The CA pivot takes a swinging mount directly; add FA flange or LB foot brackets if the frame needs a fixed base. At 300 mm stroke, keep side load low and guide the load in its own bearings.
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 MAC20X300SCA FAQ
At 0.5 MPa it pushes 157 N and pulls 131.9 N; at 0.7 MPa that rises to 219.8 N push and 184.7 N pull. Theoretical peak is 32 kgf at 1.0 MPa. Stroke is 300 mm on a 20 mm bore with an 8 mm rod, M8x1.25 rod thread and 1/8" ports.
No - the CA back cover carries a pivot eye built in, so a swing mount bolts straight on. FA flange, LB foot and SDB pivot brackets are available if the machine needs a fixed base, and the standard magnet accepts CMSG or DMSG switches without special ordering.
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