Airtac MAC Stainless Steel Mini Air Cylinder MAC20X175SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC20X175SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø20mm bore and 175mm 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
- Stroke175 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 MAC20X175SU
A 20 mm bore driving a 175 mm stroke, the MAC20X175SU is double acting with a variable air cushion at both ends: air extends and retracts the rod, and the cushions soak up end-of-stroke shock so cycles can run at up to 800 mm/s without hammering the covers. Output at 0.5 MPa is 157 N on extend and 131.9 N on retract.
The riveted stainless barrel and hard-chrome 8 mm rod shrug off washdown, condensation and outdoor exposure that swell painted mini cylinders. Plan on about 94 N of real working push at 0.5 MPa - roughly 8 kg lifted vertically with a 2:1 margin - and note the built-in magnet comes standard, so CMSG, DMSG or EMSG switches mount straight on the tube.
Airtac MAC Stainless Steel Mini Air Cylinder MAC20X175SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC20X175SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø20 mm |
| Stroke | 175 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 MAC20X175SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 20 | Bore size in mm. |
| ×175 | 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 MAC20X175SU Is Used
Bottling lane diverter
Pushes misaligned PET bottles across a 175 mm lane gap on a beverage bottling conveyor; 157 N clears a full bottle row at up to 800 mm/s.
Terminal crimp press
Crimps wire terminals and splice connectors in control-panel assembly, working with about 94 N of usable force at 0.5 MPa.
Glue head lift
Raises a hot-glue dispense head clear of a PCB on a 175 mm stroke; the end cushions stop the head tapping the board on descent.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC20X175SU the Right Cylinder?
At 157 N of push at 0.5 MPa this sits between the 16 mm bore (100.5 N) and the 25 mm bore (245.3 N) - step up a size if the load needs more than about 94 N of working force. Supply is 0.15-1.0 MPa (22-145 psi) through 1/8" ports, with an M8x1.25 male rod thread on the 8 mm rod. One caution: the piston drifts whenever air drops or the valve centres, so a rod lock or pilot check valve is needed where a load must stay parked.
The U flat-end back cover bolts straight to a fixed plate, and FA flange, LB foot or SDB pivot brackets add on if the frame requires them. Across 175 mm of travel keep the payload on its own guide - side thrust will bow an 8 mm rod long before the seals complain.
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 MAC20X175SU 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, with a theoretical maximum of 32 kgf at 1.0 MPa. For dependable work plan on about 94 N of push at 0.5 MPa, or roughly 8 kg lifted vertically with a 2:1 margin.
No. The piston magnet is standard on every MAC20X175SU, so CMSG, DMSG or EMSG switches clip onto the stainless barrel with no special-order piston. The rod is 8 mm with an M8x1.25 male thread and 1/8" ports.
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