Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SU 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 MAC20X500SU
Long slides around 157 N of push at 0.5 MPa are this cylinder's home ground. The 20 mm bore is double acting - air pushes the rod out and pulls it back - with a variable air cushion at both ends to bleed off end-of-stroke shock. Proof pressure is 1.5 MPa (215 psi) and the stainless, roll-packed barrel stays tight through -20 to +70 C.
A practical ceiling: treat about 94 N as the working force at 0.5 MPa, or plan to lift about 8 kg vertically on a 2:1 margin. The hard-chrome 8 mm rod resists scoring on long unsupported travels, the magnet is fitted as standard for CMSG / DMSG / EMSG sensing, and the U flat-end back cover gives a clean flush bolting face.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SU |
|---|---|
| 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 MAC20X500SU
| 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 MAC20X500SU Is Used
CNC pallet ejector
Pushes finished pallets off a CNC queue; 157 N at 0.5 MPa clears a 12 kg fixture on rollers across the full 500 mm travel.
Silo vent damper
Opens a grain-silo vent flap against a light spring; the flat U back cover bolts flush to the damper frame without adaptors.
Sorting gate driver
Swaps carton flow between two lanes in a small warehouse; the standard piston magnet with a DMSG switch confirms the gate is fully home.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X500SU the Right Cylinder?
For pushes under 100.5 N the 16 mm bore is cheaper to run; if the eject force creeps past 245.3 N, move to the 25 mm bore instead of running this one hot at 0.7 MPa. Position is not remembered between cycles - depressurize and the rod drifts with the load - so specify a rod lock on fixtures that must hold. U flat-end backing suits direct bolting, and the standard magnet means a DMSG switch drops straight on for end-of-stroke feedback.
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 MAC20X500SU FAQ
At 0.5 MPa: 157 N out, 131.9 N back. At 0.7 MPa: 219.8 N out, 184.7 N back. Maximum theoretical force at 1.0 MPa is about 32 kgf. Air connects through 1/8 inch ports; the 8 mm rod is threaded M8x1.25.
The barrel is high-precision stainless steel and the 8 mm rod is hard-chrome plated carbon steel, so mist, condensation and mild washdown chemicals do not eat the body the way they would a painted mini. The aluminium-alloy covers are riveted and rolled onto the tube for a sealed, rattle-free body.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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