Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 35mm 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
- Stroke35 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 MAC20X35SU
Rust resistance meets simple fixing in MAC20X35SU, a 20 mm bore, 35 mm stroke double-acting cylinder that pushes 157 N and pulls 132 N at 0.5 MPa with a variable air cushion at both stroke ends.
Its U-shaped flat-end back cover presents two parallel faces for direct bolting to a machine plate - no pivot needed, no extra bracket. The stainless round barrel with rolled aluminium covers and a 20 um hard-chrome plated carbon-steel rod takes humid, lightly corrosive air in stride. Plan continuous duty around 94 N (roughly 60 percent of the 157 N rating) and the cushion will let you cycle fast without hammering the covers.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 35 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 MAC20X35SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×35 | 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 MAC20X35SU Is Used
Small-part ejector
Ejects molded nylon caps from a light fixture; 157 N at 0.5 MPa clears the 35 mm cavity depth without marring the part.
Gravity-roller box kicker
Swings a kicker arm to divert cartons off a gravity roller spur; the flat-end U cover bolts to the frame plate in minutes.
Welding fixture panel clamp
Clamps sheet-metal panels against a hard stop on a welding fixture; the 132 N pull force retracts the clamp promptly between welds.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X35SU the Right Cylinder?
Between the 16 mm bore at 100.5 N push and the 25 mm bore at 245.3 N push (both at 0.5 MPa), this bore-20 unit lands at 157 N push / 132 N pull - a fit for light clamps, kickers and short presses. The magnet is fitted as standard for CMSG / DMSG / EMSG switches.
When the valve centres or air is lost the rod moves freely; the cushion only absorbs travel at the stroke ends and never holds a load, so fit a rod lock or pilot check valve if your fixture must stay clamped through a fault. FA flange or LB foot mounts steady the body; I and Y rod knuckles connect the flat-end cover to your linkage.
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 MAC20X35SU FAQ
Yes: push 157 N and pull 132 N at 0.5 MPa; push 220 N and pull 185 N at 0.7 MPa; theoretical maximum 32 kgf at 1.0 MPa. Bore 20 uses 1/8 in ports, an M8x1.25 male rod thread and an 8 mm rod, with standard strokes available up to 500 mm.
Needle screws at each end meter the exhaust air, so you open them fully on first run-up and then close gradually until the 35 mm stroke ends softly at any speed from 30-800 mm/s. That allows heavier loads or faster cycles without shock on the covers - but remember it damps motion, it does not lock the piston.
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1-Year Warranty
Covers non-human-caused product damage.
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