Airtac MAC Stainless Steel Mini Air Cylinder MAC32X18SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC32X18SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø32mm bore and 18mm 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.
- BoreØ32 mm
- Stroke18 mm
- Port size1/8"
- Acting typeDouble acting + cushion
- Rod threadM10×1.25
- CushionVariable air cushion, both ends
About the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X18SU
Short-travel work is where the MAC32X18SU earns its keep: an 18 mm stroke, 32 mm bore and a flat-end U back cover in a compact round body. Being double acting, air drives the rod both out and back, and a variable cushion at each end absorbs the snap of such a quick, short move. Force output is 402 N push and 346 N pull at 0.5 MPa, climbing to 563 N at 0.7 MPa.
Even at this compact size the barrel is stainless and the rod hard-chrome plated carbon steel, so coolant mist around a machine tool will not rust the body. Run it on 0.15-1.0 MPa (22-145 psi) filtered air. For sizing, keep real work to about 241 N at 0.5 MPa - six tenths below the 402 N rating - and you will hold reserve for pressure dips. The 1/8" port, 12 mm rod and standard magnet for CMSG, DMSG and EMSG switches round out the package.
Airtac MAC Stainless Steel Mini Air Cylinder MAC32X18SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC32X18SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 18 mm |
| Acting type | Double acting + cushion |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 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 MAC32X18SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×18 | 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 MAC32X18SU Is Used
Injection mold sprue ejector
An 18 mm kick clears short sprues and small parts from a mold cavity; 402 N at 0.5 MPa is ample and the cushion ends stop the ejector pin snapping home.
Rotary index locking pin
The rod drives a diamond pin into a dial-plate bushing to lock an indexing table; the magnet plus CMSG switch confirms full engagement every cycle.
Lab vial stoppering station
Short presses seat rubber stoppers into glass vials; the stainless tube endures repeated alcohol wipe-downs in the clean area.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X18SU the Right Cylinder?
Compared with the 25 mm bore (245 N push at 0.5 MPa) or the 40 mm bore (628 N), the 32 mm class sits in between and handles ejection and indexing forces near 400 N with margin. An 18 mm stroke rarely sees rod-bending trouble, but keep the load centred on the 12 mm rod all the same. Air out of either port and the piston simply coasts - a pilot check valve is the fix if a stopped position must be kept.
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 MAC32X18SU FAQ
Push is 402 N and pull 346 N at 0.5 MPa; at 0.7 MPa push reaches 563 N and pull 484 N, with 82 kgf as the theoretical maximum at 1.0 MPa (145 psi). Port size is 1/8", the 12 mm rod carries an M10x1.25 thread, and the stroke is a short 18 mm.
Yes - the MAC family in 32 mm bore takes standard strokes up to 500 mm, so 18 mm is a catalog length rather than a made-to-order build. Strokes outside the standard range can still be ordered as non-standard.
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