Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCA
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCA is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 500mm 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
- Stroke500 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 MAC20X500SCA
With 500 mm of travel and a 20 mm bore, this MAC covers long, slim moves at up to 157 N of push at 0.5 MPa, running anywhere from 0.15-1.0 MPa (22-145 psi). Double-acting air extends and retracts the rod, and a variable cushion at each end lets you soften the landing so a fast stroke does not hammer the covers. The riveted stainless barrel and hard-chrome 8 mm rod shrug off washdown mist that would rust a painted mini.
Plan on roughly 94 N of real work at 0.5 MPa rather than the full rating; that margin keeps the seals and cushion rings happy for years. Read it another way and the bore lifts about 8 kg vertically with a 2:1 margin. The magnet comes built in, so CMSG, DMSG or EMSG switches mount on the barrel with no special-order piston, and the CA pivot back cover swings on a clevis mount without extra brackets.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCA Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCA |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 500 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 MAC20X500SCA
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×500 | 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 MAC20X500SCA Is Used
Hopper gate lift
Raises the slide gate on a 40 kg powder hopper; about 8 kg of vertical lift at half rating, helped by the gate's own counterweight, over the full 500 mm.
Conveyor swing stop
A CA pivot lets the stop arm swing clear when the line reverses; 157 N at 0.5 MPa holds cartons firm on the long 500 mm approach.
Paint booth slide door
Slides a 500 mm access panel on a small spray booth; the stainless barrel tolerates solvent-laden air and daily rinse-down where painted minis fail.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SCA the Right Cylinder?
If 157 N is more than the job needs, a 16 mm bore MAC delivers 100.5 N at 0.5 MPa in the same round body; step up to the 25 mm bore (245.3 N) when racks get heavier. Remember the piston is not held by anything once the valve centres - the rod coasts wherever the load takes it, so add a rod lock or pilot check valve for parked loads. The CA pivot pairs with an SDB pivot bracket or I/Y rod knuckles, and at 500 mm the 8 mm rod wants a guided, square load - side thrust will bend it.
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 MAC20X500SCA 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. The theoretical maximum is about 32 kgf at 1.0 MPa. Ports are 1/8 inch, the rod is 8 mm with an M8x1.25 male thread.
No - the magnet is already fitted on every MAC piston. Bolt a CMSG, DMSG or EMSG reed or Hall switch to the stainless barrel and wire it straight into your PLC input; just check switch cable length for the full 500 mm travel.
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