Airtac MAC Stainless Steel Mini Air Cylinder MAC32X285SU
The AirTAC Airtac MAC Stainless Steel Mini Air Cylinder MAC32X285SU is a genuine double acting + cushion standard round-body mini air cylinder with a Ø32mm bore and 285mm 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
- Stroke285 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 MAC32X285SU
A high-precision stainless barrel with aluminium covers rolled on gives the MAC32X285SU its sealed, riveted body - a build that stands up to damp food lines and outdoor gantries far better than painted-steel minis. Inside, the hard-chrome plated 12 mm carbon-steel rod and a grease-storing two-way seal keep friction low across the whole 285 mm travel.
Air acts on both faces of the piston: 402.2 N forward and 345.6 N back at 0.5 MPa, roughly a 41 kg equivalent push. For real work plan around 241 N, or expect it to lift about 20 kg vertically once a 2:1 margin is applied. Needle screws at each end let you open the variable air cushion gradually after first run, and the piston magnet fitted as standard feeds position signals to CMSG or DMSG switches.
Airtac MAC Stainless Steel Mini Air Cylinder MAC32X285SU Technical Specifications
| Model | Airtac MAC Stainless Steel Mini Air Cylinder MAC32X285SU |
|---|---|
| Series | MAC mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 285 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 MAC32X285SU
| MAC | Standard round-body mini cylinder (double-acting, variable cushion). |
|---|---|
| 32 | Bore size in mm. |
| ×285 | 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 MAC32X285SU Is Used
Lid press on a filling line
The riveted stainless barrel and chrome rod take repeated caustic washdown on a dairy line while pressing snap lids home through a 285 mm stroke.
Tote pusher in an AS/RS aisle
Foot-mounted by an LB bracket, it nudges totes across a roller spur at 0.5 MPa, its 345.6 N retract pulling the head clear for the next pass.
Glue-head retractor
On a carton gluer the flat-end cover bolts the cylinder above the head, retracting the nozzle each cycle so the magnet and DMSG switch confirm park position.
Is the Airtac MAC Stainless Steel Mini Air Cylinder MAC32X285SU the Right Cylinder?
Size check: the 25 mm bore of the same series manages 245.3 N at 0.5 MPa (the family runs 0.15-1.0 MPa (22-145 psi)), while stepping to 40 mm buys 628.3 N - 402.2 N sits squarely between for this 285 mm stroke. With no air applied or the valve in centre, the rod is free to drift under load, so add a rod lock or external stop for held positions. LB foot, FA flange and SDB pivot brackets, plus I and Y knuckles, bolt straight on, and the magnet opens CMSG/DMSG/EMSG sensing without special ordering. Support long strokes against side thrust by guiding the load on its own bearings.
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 MAC32X285SU FAQ
Expect 402.2 N forward and 345.6 N back at 0.5 MPa, rising to 563.0 N and 483.8 N at 0.7 MPa, with 82 kgf the theoretical maximum at 1.0 MPa. Bore 32 uses a 12 mm rod threaded M10x1.25, a 1/8" port, and strokes to 500 mm are standard, so 285 mm needs no special order.
The barrel is stainless steel rolled into the aluminium covers, and the rod is hard-chrome plated carbon steel, so splashes, humidity and mild chemicals do not chew the body the way they do painted minis. The magnet comes fitted on every piston, so CMSG, DMSG or EMSG switches mount externally for position feedback.
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